Butterflies of Crosby County, Texas
- Information about and pictures of all the known species of butterflies in the county.
- http://www.butterfliesandmoths.org/map?dc=1658&_dcc=1&si=44

Handbook of Texas Online : Crosby County
- Current and historical information about Crosby County.
- http://www.tsha.utexas.edu/handbook/online/articles/CC/hcc27.html

The Official Website of Crosby County, Texas
- Links to county data, weather, map, officials and court system.
- http://www.co.crosby.tx.us/

The Political Graveyard: Crosby County
- Lists politicians who lived or died in the county.
- http://www.politicalgraveyard.com/geo/TX/KS.html

Amphibians and Reptiles in Crosby County
- Texas Cooperative Wildlife Collection list of species found in the county.
- http://wfscnet.tamu.edu/tcwc/checklist/CROSB054.HTM

Artcom Museum Tour: Crosby County Pioneer Memorial Museum
- Crosby County Pioneer Memorial Museum information.
- http://www.artcom.com/museums/nv/af/79322-22.htm

Crosby County, TexasGenWeb Genealogy
- Genealogical site.
- http://www.rootsweb.com/~txcrosby/index.htm