I found one post on the Evetts forum which states:
Colista Deveraux Evetts, b. 6 May 1854, d. 6 Jun 1940 married Eunice Rebecca LaBare, b. 14 Oct 1861, d. 30 Mar 1936 children: Hortense, Leon Lewis, Homer Paul, Humphrey P., Colista D., Rubye Jane, Dewey Lee, Eunice Elizabeth
I found a Homer P. Evetts on WorldConnect, b. 2 Feb 1889 in Love Co., OK (would have been Indian Territory)
Then found "Calista" D. Evetts, 1910 census, Washita, OK, b. 1954 Mississippi.And in 1920 "Catisto" Evetts, in Scott Co., AR, b. 1852 MS.
It may be that Colista was in Indian Territory prior to 1880 and that's why you can't find him (no census records).