Yes, not sure if you are still on here. This is an old post. But here is what I have from my family. I have some clues beyond this, but have not yet confirmed.
Here is the chain I believe to be fact:
Darryl Galt - Born Dec. 14th 1943, Jamestown, ND Spouse: Carol Irmen - Aug. 22nd 1941
Fern Galt - Born July 4th, 1908. Stutsman County, ND Spouse: Marjorie Posey
William Galt - Born Sept. 1st, 1881, Freeborn County, MN Spouse: Cora English
William Wylie Galt - Born May 8th, 1854, Freeborn County, MN (or maybe WI) Spouse: Emmaretta Robinson
John Galt - Born Jan. 14th, 1811, Dundonald, Ayrshire, Scotland Spouse: Jeanette (Janet) Wylie
John Galt - Born abt 1783, Dundonald, Ayrshire, Scotland Spouse: Margaret McClymont
James Galt - Born Sept 4th, 1758 Ayrshire, Scotland Spouse: Agnes Harper
Let me know if anyone can add to this.