I am not related to the Hickmans, but perhaps these two abstracts of obituaries may be helpful ?
Hickman, Alma, Mrs. -- wife of Professor S.H. HICKMAN died; left husband & a daughter Deolice HICKMAN; niece of Mrs. E.J. (illeg.) of Bryan and Mrs. John N. HENDERSON of Dallas; Episcopalian. (weekly) Bryan Eagle, 31 Dec. 1896, p.3; 7 Jan. 1897, p.1; 14 Jan. 1897, p.1 & p.3
Hickman, W.B., "Mr." -- died at "her" home on Cottonwood Prairie. Bryan Daily Eagle, 18 Sept. 1896, p.4, col.1