FYI, I found these grave sites I have not checked any records of these men.
Mike T

Kyle Cem. Hays Co, Tx,

JACKMAN, SYDNEY D. 7 MAR 1826 2 JUN 1886

Col., Jackman's Missouri Cavalry

GREEN, JOHN W. 4 DEC 1844 19 JUN 1925

Co. C, 1 Missouri Infantry

SOLOMAN, PHASM H. 1843 1910

Co. E, Missouri Cavalry

San Marcos Cem. Hays Cp. Tx.

HACKER, B. S. 3 APR 1835 5 APR 1900

1 Missouri Cavalry

7 Missouri Cavalry