Yes GIles was in 11th Ark. He later did enlist in a mostly Saline Co/Jefferson Co US cav company, Co H 4th Ark Cav. He was later transfered to 2nd Mo ARt. I do show the brothers in the 3rd Ark Cav, Co C US Cav as well. I feel more inclined that John and William were in Co D 37th rather than 4th Ark Cav. I have not found the Thomas yet. What CS unit was he in? I will keep checking and see what I find.