Hello Friend!
Do you have a little more information?

I found two soldiers with name Henry Davidson but only one of them in the 11th Tx Inf. "Henry c"
Henry C. Davidson; Side: Confederate; Regiment State/Origin:Texas
Regiment: 11th Regiment, Texas Infantry (Roberts')
Company: C
Rank In: Private
Rank Out: Corporal
Film Number: M227 roll 9
The other is Henry W. Davidson