W.H. Flowers Bill Bo

This is a photo that I found is some old family things. It probably belonged to Allen Flowers born 1826 in North Carolina and died in 1902 in Gibson Co. TN. I know that his family started to move to Chico, Texas but returned to Gibson County. Perhaps this is a family member in Texas. The photography company is listed as being in Texas on the photo. The back of the photo reads: W.H. Flowers "Bill Bo" I assume Bill is a nickname for William.
People in photo include: William H. Flowers