Still with me??? The first son, Robert J. Old (Bert) was a dentist. In his document we see his signature, Robert James Old, his wife's name, Mollie, occupation Dentist, and his office place, 408 Federal St., Pittsburgh, PA. All new information!!
The 2nd son, Richard Lloyd Old, married Jeannie Dean Campbell and we can see his wife's name "Jenny Dean" on the form (this stuff is soooo cool), also that strange occupation of "pattern maker" now makes sense, he worked for the "Damascus Bronze Co." A pattern maker makes the sand molds for the bronze. A pattern (aka casting) maker makes the top & bottoms (aka cope & drag) of the molding box (aks casting flask). He worked in a foundry!
Now take the poll...it easy.