This is a long shot, but I have spent over twenty years on this family and I am desperate for a clue.
When a cousin closed his hardware store in Birmingham, AL he found a photograph of John Henry Lamb, Carolina, 1818 that his father must have left there. It was in a cardboard folder engraved with Profet (sp?) Studio, Goshen, Indiana. John Lamb was my great grandfather who, according to censuses, was born in NC in 1818.He was in Fayette Co., GA by 1840.He could have been with Miriam Lamb, widow, in Marlboro, SC in 1830.
We have no clues to John's father's name.He had siblings: Jacob, b. 1802, Reddick b. 1808, Joshua b. 1810, and Permelia b. 1815.An otherwise unknown Morgan Lamb helped sell Miriam's farm in Fayette Co., GA after she died in 1847.
I know that several Lamb and Todd families moved to Indiana so John's photograph could have been placed in a folder that originally held that of another relative. He looked to be about forty. That would have placed him there in the 1860 time frame +/- a few years.
There is a remote possibility that he went to visit his children by his first deceased wife.John married two daughters of Giles Newton.