Logsdon
- Ancestry of Tracy Logson featuring the English family of John of Roxton (1500) to the American lineages of Illinois and Ohio.
- http://www.one-eleven.net/~tracydai/

Linney Family History
- Ancestral pedigree of Bill Linney including the surnames Arnett, Barlow and McPheeters. Also features the complete text of The Linney Family, written in 1974 by James Erle Linney, documenting the descendants of William Coplin Linney (b.1739).
- http://linney.gettingstartedwithlatin.com/

Lippincott
- Descendants of Richard and Abigail Lippincott who immigrated from England to MA USA. Features the surnames Faust, Ruth and Hans.
- http://familytreemaker.genealogy.com/users/d/e/n/Karen-L-Denmark/

Laudenslager: Dauphin County, PA
- Family history of Tracy E Laudenslager, 1400s to present day.
- http://familytreemaker.genealogy.com/users/l/a/u/Tracy-E-Laudenslager/

Laepple
- Family history of Balthassar Laepple (1601-1683) of Germany.
- http://familytreemaker.genealogy.com/users/l/a/e/Tom-L-Laepple/

Leonard
- Ancestors and descendents of Daniel Leonard (b.1830) as compiled by Rick Leonard. Includes charts, photographs, short stories, as well historical notes and mysteries.
- http://www.rickleonard.net

Lunt
- Researching the name and its global application. Features database, archives, records, deeds, name origins and history, photographs and associated links.
- http://www.lunt-family.co.uk/

Lumley
- Yahoo group exchanging information pertaining to the name and its global application. Includes mailing list and archived messages.
- http://groups.yahoo.com/group/lumley/

Lowthian Times
- General information on reunions and family links worldwide.
- http://www.lowthian.com/

Lowary
- Dedicated to the Lowary, Lowery, Lowrey, Lowry and Loughry names and spelling variations.
- http://www.lowary.org/

Loughrey Family of America
- Association researching the descendants of James Loughrey, Jnr, who emigrated from Ireland to the USA circa 1700s. Membership is open to all descendants, their families and other interested parties.
- http://www.loughrey.org/

Lorber
- Researching the name and its application worldwide. Includes pedigrees, arms, nobility and associated links.
- http://www.lorbers.net/

Locke Family Association
- This may be the oldest incorporated family association in the US. It was founded in 1891 and incorporated in 1898 by the descendents of Capt. John Locke and Elizabeth (Berry) Locke who settled at Locke's Neck, NH in the middle of the 17th Century. Site h
- http://www.lockefamilyassociation.org

Loach
- Single name study featuring a global database, general history and associated contacts.
- http://www.loachgenealogy.fsnet.co.uk/

Lindsay International
- Y-Chromosome test in order to establish haplotype(s) and determine which of the lineages share a common ancestor. Features pedigrees, allied surnames, places, entities, kilt, heraldry, armory and associated links.
- http://www.clanlindsay.com/

Ligthert
- Researching the name and its global application.
- http://home.planet.nl/~ligthert/

Lightkep/Lightcap
- Researching the name and its spelling variants; includes US census data 1790-1930; and link to join the Lightkep-L Rootsweb Mailing List.
- http://freepages.genealogy.rootsweb.com/~dynamo53/Lightkep/Lightkep-L.html

Liffiton Family History
- Explores history related to the name which is derived from Liverton and Leverton. With origins in Devonshire, England, the name has spread throughout Brazil, Canada, New Zealand and the United States.
- http://www.liffiton.net/

Lidstone Family History Society
- New membership will incur a one off fee of £10. All members have access to archives and copies of the family trees. Registered with the Guild of One-Name Studies, number 87. Includes variants Ledston, Ledstone, Lidston and Lydston.
- http://www.lidstone.plus.com/

Libin (Libina)
- List of Libins including submitted information, application and Eastern European origins.
- http://www.libin.org/

Leriger-Laplante
- Yahoo discussion group for those researching the names Leriger or Laplante.
- http://groups.yahoo.com/group/leriger-laplante/

Leavitt Families Inc
- National Association (NALF) was formed with the objective of promoting acquaintance and good fellowship among the living descendants of immigrant John Leavitt (New England, 1636); and Thomas Leavitt (Hampton, NH USA 1639).
- http://www.leavittfamily-nalf.org/

Laughter Reference and Research Center
- Research exchange including variants Laughter, Lawter, Lauter, Lawther, Lowther and Larter. Also features associated family lineages and history.
- http://www.laughtergenealogy.com/

Langleys Online
- Research hub for those researching the name and its global application. Includes links to associated database and family pages.
- http://freepages.genealogy.rootsweb.com/~langleysonline/

Landon Family Research Group
- Dedicated to the preservation of family history and as a means of communication amongst fellow researchers. Features mailing list and associated US links.
- http://homepages.rootsweb.com/~landon/

Laidlers
- Single name research encouraging contact with family members worldwide.
- http://www.laidler.com/

La Liberté
- Forum for the La Liberté, Laliberté, Laliberty and Liberty families.
- http://www.hypernews.org/HyperNews/get/laliberte.html

Le Lievre Reunion
- Information concerning the reunion of Le Lievres decending from Peter, Edward and Isaac in Wagga Wagga 2006.
- http://www.lelievre.id.au

Landis Family Tree
- Ancestors of Karen Arnold.
- http://worldconnect.rootsweb.com/cgi-bin/igm.cgi?db=:1041237

Labelle
- Family of Jean Labelle as compiled by Karen Sullivan.
- http://worldconnect.rootsweb.com/cgi-bin/igm.cgi?db=:1509973

Lamp
- Ancestral heritage of Nancy Patterson including associated lineages.
- http://worldconnect.rootsweb.com/cgi-bin/igm.cgi?db=:1993738

Leist Family
- Ancestors and allied families as compiled by Sue Parsons.
- http://worldconnect.rootsweb.com/cgi-bin/igm.cgi?db=sueparsons

Last
- Ancestors and related lineages of David Last.
- http://worldconnect.rootsweb.com/cgi-bin/igm.cgi?db=:2856353

Lance/Lentz/Lindley/Guyer
- Family database as compiled by Woodrow E Lance.
- http://worldconnect.rootsweb.com/cgi-bin/igm.cgi?db=lancefamily

Lentz-Lance Family
- Ancestors and related lineages as compiled by Debbie McInroe.
- http://worldconnect.rootsweb.com/cgi-bin/igm.cgi?db=:1408127

Longoria Alcala Family
- Ancestral heritage of Raul N Longoria of Fort Worth, TX USA.
- http://www.raullongoria.net

Littles: Trees With Leaves
- Ancestral heritage of Kenyon C Littles including the surnames Littles, Stewart and Duncan.
- http://familytreemaker.genealogy.com/users/l/i/t/Kenyon-C-Littles/

L'Huillier Family History
- Ancestors of Gerard Joseph L'Huillier (1920-1983) as compiled by daughter, Fran Kennedy.
- http://users.impulse.net.au/aspenglow/

Lenson and Baird Families
- Family tree of Bill and Laura Lenson including the surnames Lenson, Van Gorder, Mitchell, Dockstader, Pickering, Kirtland, Hebberd, Cline, Foster and Boyd.
- http://www.lensonbaird.com/

Lohman
- Family history of Marcine E Lohman nee Amelung from Firestone, CO USA. Features the family lines of Lohman, Ash, Luttrell, Thornton, Bodenstein, Shlueter/Schlüter, Suedekum, Walperswiller and Wolff.
- http://freepages.genealogy.rootsweb.com/~celticlady/default.htm

Léveillée
- General and family interests of Norm Léveillée including Léveillée-Bélanger ancestry.
- http://www.leveillee.net/

Lamoureux and Port
- Ancestral heritage of Ray Lamoureux and Bev Port featuring the lineages of Lamoureux, Port (Part), Foyle (Faille), Bryant and Riley.
- http://www.rlamoureux.com/

Limbaugh: USA
- Descendants of George Frederick Limbaugh (b.1737); including allied lines through Missouri and points West.
- http://www.limbaugh.net/

Lutton
- Family history and general interests of Jeff Lutton. Includes photographs, family tree, Town Hall teleconferencing, triathlon, rugby, resume and wedding.
- http://www.lutton.cc/

Leifeste
- Family history of Heinrich August Leifeste and wife Sophie Elisabeth Henriette Viedt Leifeste. Includes historical sketch of August Leifeste Snr; and the descendants of Samuel Daniel Leifeste.
- http://www.augustleifeste.com/

Lepki Family
- Ancestral history featuring pedigree, photographs, biography, articles and associated stories.
- http://www.lepki.net/

Latter
- Family history research by Brenda Latter featuring the surnames Latter, Buck, Warriner, Briard, Acklam and Alchin.
- http://www.brennweb.com/

Landers
- Descendants of Thomas Landers circa 1613-1675; includes the related lines of Freeman, Perry, Kirby and a large royalty section.
- http://www.landersgen.com/

Leach
- Ancestral research compiled by Grethe and Erhard Leach, covering Denmark and the USA. Available in both Dansk and English.
- http://www.leach.dk/

Leser and Korn
- Family history project including the surnames van Voorhess, Golder, van Nostrandt, Stebbins, Gravelin, Pitschmann, Wizzel-Penning, Fumat-Lajeunesse and Quinlisk.
- http://home.comcast.net/~quinlisk/

Llauget
- Ancestors of Susan Alexander Llauget including the surnames Alexander, Morris, Thompson, Stiles, Englebert, Harmon and Heacock.
- http://freepages.genealogy.rootsweb.com/~socalsue/

Liebrich/Leebrick
- Descendants of Johannes Phillip Liebrich of Mannheim, DEU. Features US descendants as compiled by David Hartzell Leebrick of Palm Bay, Florida.
- http://freepages.genealogy.rootsweb.com/~leebrick/

Losty: Ireland to America
- Researching and documenting the families that descend from the Kildare County, Irish line. Includes the various Holyoke lineages from the USA.
- http://www.thelostys.com/

Luffman
- Descendants of William Luffman (d.1798) as compiled by Terry Mattison. Includes the surnames Harris, Park, Blue and Henry.
- http://homepages.rootsweb.com/~luffman/

Lummis Family History
- Ancestry of Brian Lummis highlighting the branches from Suffolk, ENG. Includes database, Australian lineage, surname origins, and a pedigree for the surname Rookyard.
- http://www.btinternet.com/~lummis/

Lowell
- Family history of Paul and Tami Lowell from Raleigh, NC USA. Includes Paul's personal interests such as astronomy, electronics, hiking, camping and sailing. Also features boat renovation and refinishing.
- http://www.lowell.to/

Lord Family History
- Pedigree database of Robert E Lord; includes guestbook and family forum.
- http://lordindustries.com/gene/

Longwell
- Family history including the surnames King, Null, Gorby, England and Smith.
- http://www.longwell.net/

Lokuciewski
- Family tree including the variants Lokuciejewski and Lokuciejiewski. East Polish origins.
- http://www.btinternet.com/~hydro.lek/lokuhome.htm

LeValley
- Designed to assist those researching their US ancestry. Includes preliminary membership information in relation to the LeValley Rootsweb Mailing List. Excludes LaValley variation.
- http://freepages.genealogy.rootsweb.com/~levalley/

Lether/Leether Family
- Descendants of Heinrich Daniel Löther born circa January 1749 in Nassau-Weilburg, Hessen, DEU.
- http://www.presstige.nl/Genealogy/

Lenhart
- Researching the line from Germany to the USA, circa 1748. Features the surnames Lenhart, Luzier, Maines, Richards, Miller, Bird, Beatty, Bunting, Daniels, Cornprops, Partyka, Engler, Pecha, Stobierski, Pelish and Dohanich.
- http://www.lenhartfamily.org/

Lanovaz Portal
- Family tree, historical documents and associated links. Includes general discussion forum.
- http://www.lanovaz.org/

Lutzke
- Researching the Lutzke lineages from Germany and Pomerania. Includes related surnames Franck, Kiel, Gibson and Pettit.
- http://www.lutzke.net/

Lenehan
- Surname history as compiled by Jim Lenehan. Includes information of Glenealy in County Wicklow, a village on the East Coast of Ireland.
- http://homepage.eircom.net/~jimlenehan/

Leafe's Place
- Family history and general interests of John and Pauline Leafe from Darwin in Australia's Northern Territory.
- http://freepages.genealogy.rootsweb.com/~latijan/

Langston Histories
- Family stories as compiled by Charles (Chip) Langston. Various branches including non-related, all are encouraged to make contact.
- http://homepages.rootsweb.com/~tugaloo/

Laefer
- Family history of Helene Blattstein and Norman Laefer.
- http://freepages.genealogy.rootsweb.com/~norm/

Larkman
- Family history of Richard Larkman including name origins, pedigrees and the surnames Braley and Gillot.
- http://www.btinternet.com/~richard.larkman/

Lankester
- Descendents of Robert Lankester born circa 1670. Includes some collateral lines. Compiled by Andrew Morgan Lankester, Leicester, England.
- http://www.lank.demon.co.uk/gindex.htm

Lizweb Family History
- Ancestral research including surnames Thomas, Willsman, Fisher and Denman of Somerset and Devon.
- http://www.lizweb.net/

Lankshear Family
- Family history of Ron Lankshear, including surnames Eagle, Robbins, Hayball, Hale, Skeggs, Paxford, Townsend, Shaw, Sylvester and Pearson.
- http://freepages.genealogy.rootsweb.com/~lankshear/

Liggins Family Tree
- Descendants of William Liggins and Katherine George.
- http://www.btinternet.com/~d.liggins/liggins/

Lake
- Family history of Kathryn Lake Hogan. Researching the lineage from Lincolnshire, England.
- http://home.cogeco.ca/~klake/

Lundy and Lunde
- Family history and general interests of Ken Lundy Snr, Eagan, Minnesota. Includes research on the name worldwide and in particular those of Norwegian descent.
- http://www.lundy.org/

LaFerrière and Charron
- Family history of Joseph A R LaFerrière across the USA, Quebec and Saint Onge, France.
- http://www.laferriere.us/

Leon Family
- Family tree an name origin, includes guestbook.
- http://www.theleons.co.uk/

Lipinsky
- Hans - Peter Wendelin von Pazatka Lipinsky, researching since 1953. Includes name origin, family crest and general family history.
- http://members.shaw.ca/lipinsky/

Lazarus
- History of the lineage from Plymouth and Exeter. Includes surname variations of Laurance and Lawrence, and other families of the Jewish community of Devon, England.
- http://lazarus.1afm.com/

Langhorn
- History of the lineage from West Riding, Yorkshire, ENG. Branches extend across Snaith, Pollington, Heck, Wakefield, Felkirk, Halifax, Keighley, Crofton and Beverley.
- http://www.langhorns.co.uk/langhornline/

Laaksonen Family
- Researching the Laaksonen and Happonen lineages. Includes the Laaksonens who emigrated from Finland to Kaleva, Michigan USA at the turn of the century.
- http://www.uku.fi/~dlaakson/

Lorman/Lowman Family Tree
- Researching the Bauer, Gibson, Lorman, Lowman, McClurkin, Norton, Stevenson and Wickline families. Compiled by Michael J Lorman from Nevada, USA.
- http://freepages.genealogy.rootsweb.com/~lorman/

Lamperts
- Ancestral heritage of Arthur A Lampert, Jnr. Features the American descendants of Jacob Lampert of Flasch, SWZ.
- http://www.lamperts.com/

Lathan Family History
- Descendants of Robert Leathan and brothers, William and David who immigrated from County Antrim, Northern Ireland to the USA shortly after the American Revolution. Includes surnames Eakin, Kilpatrick, Melugin, Teater, Davis, Vaughan, Burgiss, Lewis and M
- http://www.wclathan.com/

LaChance
- Descendants of Toussaint Hunault dit Deschamps and Marie Lorgueil; includes the family lines of Croucher, Reaume, Deschamps and Whitehead.
- http://freepages.genealogy.rootsweb.com/~fjl1935/

Liedtke, Meyers, Chatterton, Waddoups, Jenkins and Tobinski Families
- Ancestry as compiled by Dorla and Heinz Peter Liedtke.
- http://members.networld.com/hdliedtke/

Lanier
- Descendants of Nicholas Lanier including related lineages.
- http://www.mindspring.com/~wdlanier/

Lawson: Kinnexions
- Ancestral heritage of Stephen M Lawson featuring the colonial American lineages of Freeman, Morey, Hazelrigg and Mason.
- http://www.kinnexions.com/

Lutzenberger Family
- Family history of Mike Lutzenberger including associated lineages.
- http://lutzenberger.accessgenealogy.com/

Lacy Family Tree
- Descendants of Thomas Lacy; immigrated to Virginia, USA from Wales circa 1680-1685. Compiled by Allen Lacy.
- http://www.allenlacy.com/

Logan: Family Trail
- Ancestral heritage of Donna Younkin Logan of Hancock, MD USA. Surnames featured include Logan, Elder, Crippen and Junghen.
- http://www.familytrail.com/