Friday's Unknown Photograph

I have been bad about keeping up with this blog, so here is another mystery photo.

I believe this may have been taken around the time of the Civil War. Since children were dressed the same back then for the first few years of life it is difficult to determine whether the child was male or female.

The back of the picture is stamped C. C.Griers National Portrait Gallery in Nashville Tennessee.

Also on the back of the picture written in pencil is what looks like, Manny.  So far in my research I have not found a 'Manny' on either side of the family. 

The most likely line would be the my grandfather Webb's side.  His grandfather, Zephaniah T. Webb was born in Giles County, Tennessee.