Jim:

This is the last census record that I was able to find for HBC. Perhaps someone from Hunt County has access to cemetery records.

Name: Horatio B Cushman
Home in 1900: Greenville Ward 2, Hunt, Texas
Age: 78
Estimated birth year: abt 1822
Birthplace: Mississippi
Relationship to head-of-house: Head
Race: White
Household Members: Name Age
Horatio B Cushman 78
Della A Cushman 40 (Daughter)
Francis Cushman 19 (Granddaughter)

The source for this photo can be found at:
http://homepages.rootsweb.com/~ahopkins/cushman/mylineof.htm

Hope this helps,
Mitch Sanders