Dear Ms. Taylor,
Thank you for posting your request on History Hub!
We searched the Bureau of Land Management (BLM) database that provides [Number of Hits for NAME] between [year span]. Bureau of Land Management (BLM) database is: http://glorecords.blm.gov/.
We hope this is helpful. Best of luck with your research!
Thomas B. Allison received a homestead patent for 160 acres 3 Feb 1902 in Elbert County, Colorado. Patent Details - BLM GLO Records if you click all 3 boxes under map it will show you the outline of his land. It looks like it is a very rural area with a few county roads shown.