Sorry I thought this would have posted automatically to this thread, here it is for anyone interested: Thanks guys!
This is the chain of relation you asked for: My father was Thomas Lee McGivern, adopted by Robert McGivern Jr. son of Robert McGivern Sn. who was the son of Ed McGivern. Robert Jr. adopted my father when he was about 10 years old. There is still 3 great granddaughters (my fathers 3 younger sisters, all blood related to Robert Jr.) living, 2 are in Mt and 1 is here in Wa. I have only a few things that feature Ed but nothing that was personally his nor do my fathers sisters (my aunts.) My father knew Ed and would see him frequently when he was young but Ed passed away when my father was 17. I grew up hearing about him, researching off and on with my Dad, my Dad always said Ed was a "generous man, had a good sense of humor and very dedicated to his work" and that Ed had "a curious mind, always pushing the limits of industry, preferring to blaze his own trail instead of following anyone else", which was evident in his lifetime of work. It's so nice to find so many who truly appreciate and respect his work. Kindest Regards, Traci McGivern