he was shot through the hand
he youngest son of the family, Henry, disappeared at the beginning of the fifth season when actor Burbage left to move back east with his family. He is actually never seen during the fifth season but...
nothing he is still singing
George Henry Thomas died on March 28, 1870 at the age of 53.
It sounds like he did what the cia has always done "looked after its own misterious interests".