Further note , I found an interesting read on Genealogy.com/forom/surnames Grahams in Scotland - my line from 1590 by David Stacey. The first paragraph identifies my William Graham, but it becomes rather convoluted. But it does shed some light on my father's middle name Maxwell. The family never understood where it came from, but on reading this entry I saw that through the years there were a few Grahams with the middle name of Maxwell. I am a little further forward, not much, but a little. Thanks for your suggestions