Hello, mmccrohan1. Looks like you and I are on similar research paths. I would like nothing more than to be able to connect my 2nd gr grandmother Julia Griffin (nee McCrohan) to those fabulous Steppenwolf rockers! All I seem to have found so far, though, are small pieces of the puzzle.
I stumbled across an interesting blog today which mentions Eugene McCrohan Sr:
"When we have the Easter potluck at Margot's some of the adults inevitably end up in her back hall asking questions about all of her relatives photographs hanging on the wall. They include her husband Tim Hill's relatives also and she pauses as she remembers each name along with some pertinent information as to how they connect with the Lomen's, David's, Hill's or Weaver's (my paternal grandmother Vella's maiden name). At some point I may mention or maybe I've always kept it to myself but I've often thought, "There should be some McCrohan's up here too." Who are the McCrohan's you may wonder? Well if the 1918 national flu epidemic hadn't killed Frank J. McCrohan on December 19, 1918 in Nelson, B.C., Canada then the Lomen name would never have been connected to his wife Vella Vernell Weaver McCrohan, daughter Rosemary McCrohan and son Francis (Jerry) McCrohan. Frank's death certificate indicates that he died at the age of 33 of an "Embolism in the Main" which is a blockage of the main artery of the lung by something such as a blood clot. Apparently his father, Eugene McCrohan who lived in Whitby, Ontario outside Toronto either was with him when he died or handled the identification and the burial of his son in Nelson, B.C. which is 150 miles north of Spokane, Wa. on the extreme West Arm of Kootenay Lake in southern British Columbia."http://tellthemwillieboyishere.blogspot.ca/2011/02/mccrohanl...
I've found a register for Frank Jeremiah McCrohan dated 30 Apr 1912 when he married Mary Vella Vernel Weaver in Nelson, BC.