Found this grave near Odessa, MN at the Yellowbank Emmanuel Lutheran cemetery (Laq Qui Parle County).
In memory of John Flamm
born Oct 28 1848
died May 24 1890
A friend to his country and a believer in Christ
Now sleep the brave, who sink to rest. By all them country wishes blest.

another stone reads
MN CAV
JNO FLAMM
CO C
HATCH'S BATT'N

Also Verna Lucille Flam
b Jan 31 1808?
d Mar 23 1809
dau of John and Lydia