Underwood Family
- Ancestral heritage of Daniel Pruitt and Suzy Underwood, Texas USA. Includes photographs, reports and family tree.
- http://familytreemaker.genealogy.com/users/u/n/d/Daniel-Pruitt-Underwood/

Underwood and Jones
- Descendants of Joseph Underwood compiled by Dale Edward Underwood, Kalispell MT USA. Includes family photographs and associated reports.
- http://familytreemaker.genealogy.com/users/u/n/d/Dale-E-Underwood/

Underwood-Miller Family
- Researching ancestors who came to America seeking religious and political freedom. Includes surnames Girton, Greason, Hadlock, Hannegan, Hawkins, Hotchkiss, Marcy and Parker.
- http://familytreemaker.genealogy.com/users/u/n/d/Charlotte-Underwoodmiller-MA/

Underwood and Sullivan
- Family history of Brian Underwood and Carla Mae Sullivan Underwood, South Carolina USA.
- http://familytreemaker.genealogy.com/users/u/n/d/Carla-M-Underwood/

Underwood Tree
- Family history of William Doolan Wedgebare Underwood (b.abt.1759), compiled by Beverly Mattias Underwood, Portland, Oregon USA.
- http://familytreemaker.genealogy.com/users/u/n/d/Beverly-M-Underwood/

Underwood
- Researching A W Underwood of Pittsburgh PA, includes surnames Carroll, Flaherty, McCaffrey, Paladino and Packard. Compiled by Arthur William Underwood.
- http://familytreemaker.genealogy.com/users/u/n/d/Arthur-W-Underwood/