Trivia #5 Chickamauga (8/7/2013)

[bixby272]

Brigadier Gen. Frank C. Armstrong from Arkansas

 

[Sean Kevin Gabhann]

BG Frank Armstrong fought for the US at First Manassas, then resigned and took a commission in the CS in August 1861.
James Deshler technically never resigned from US service but rather was dropped for overstaying leave in July 1861.

Edit - Good answer. Though Deshler didn't necessarily fight for the US, he was in US service at the time the Civil War began.

Hoosier

 

[hoosier]

Frank Armstrong

 

[sarladaise]

Frank C. Armstrong

 

[reading48]

Simon Buckner ???????

 

[Trivia Master]

Frank Armstrong is correct!