According to Tombsone: CO. G. 31ST MO. INF (or maybe CO C?? I have seen it both ways recently. It's very hard to read on the tombstone as well)
According to 1890 Census, below: Co A
According to http://www.itd.nps.gov/cwss/soldiers.htm, both! Co C in 31st and Co A in 32nd...
went to the Hopewell, Washington Co, MO area in between 1840-1850
1850 Census, Breton Twp, Washington Co, MO
#1016 Forchea, page 161
Valentine, 21, TN
Elenor, 19, TN
Elizabeth A., 1, IL
1860 Census, Concord Twp, Washington Co, MO
#290/312
Foshee
Valentine, 29, Farmer, TN
Ellen, 26, TN
Betsy, 11, IL
Joseph, 8, MO
Jno, 6, MO
Wm, 4, MO
Albert, 2, MO
James, 6/12, MO
1870 Census, Concord Twp, Washington Co, MO
Page 30/31 #207/209
Forchee
Valentine, 41, Farmer, TN, can't write
Lydia, 32, AR
Joseph V., 19, Sead mines (or mino), MO, can't read or write
John T., 16, Works on Farm, MO, can't write
Albert F., 12, MO, can't write
Penelope E (C?), 4, MO
Reuben N., 2, MO
1880 Census, Washington Co, MO
#108/109
Forshee
Valentine, 52, Farmer, TN, VA, VA
Libby, 42, AR, TN, TN
Penellbe, 13, MO, TN, AR
Reuben, 10, MO, TN, AR
Besheby, 8, MO, TN, AR
Richard, 4, MO, TN, AR
1890 Census: Veteran's Schedule, Washington Co, MO
#29
Valentine Forshee
PVT Co. A. 31st Mo Inf
Enlisted 8-19-1862, Discharged 6-10-1865, Service Term 2y, 9m, 24d