Daniel Kimber is a miner. That's all he's ever done, and all he wants to do. But the Depression and the Scovill Mining Company's attitude toward union organizing means his job is always at risk. He started in the mines at the age of ten, and to him it's a big deal that his eldest son stayed in school until twelve before going to work. Daniel worships his wife for her strength and ability to manage their family on next to nothing. He's never looked at another woman - they met in grade school and paired off almost immediately. .
My choice for Daniel is Colin Farrell in a more scruffy moment. Daniel doesn't actual have a mustache, but there's something in the bleakness of his expression here that works for me.
The only son of a wealthy businessman, Harry Warriner made it to nearly forty before acquiring a young wife who met none of his mother's exacting standards. He knows his place in Philadelphia society, but it isn't what he would have chosen for himself, if he'd had a choice. Marrying Claire is his one rebellion, but he doesn't always see how difficult it has been for her to fit into his life.
Harry, at the start of the book, is fifty years old, with a precise trimmed mustache and spectacles. He can't see two feet without them. His upbringing has made him very restrained, but he does love Claire and wishes he knew how to make her happy.