There is separate query on Robert Gregg Mylchreest here in case you've not already seen it which says He married a Jennie Van De Bogart later divorced, served in WWI in the United States, listed still as an alien. Hed 3 children Robert Charles Gregg, Roy Gregg, and Genevieve Gregg. Charles and Roy born in Oregon, Genevieve born in California.

He erected a memorial at Douglas with regards to his kindest friends, William Quilliam and Francis (Karran) Quilliam.