It is wonderful after all this time to find someone else in the world looking for John and Susan Walters. I started this thread and check it every now and again and finally there is some interesting information. As to the marriage to John Jeffrey, this sounds probable; my father also thought Susan must have had a first marriage as we could not find evidence of an actual marriage to John Walters.
I do have a photo of Susan with my grandfather and his brother and I will send it.
I wish I could find out more about John Walters, the Salome and John Walters thread seems to fit in many ways, but the name Mahomey is still a puzzle