So we are indeed talking about the same family.I'm not really researching the Jayne family.I was just curious about when my Arthur ancestors bought the Jayne place and it became part of the Arthur ranch where I grew up.
I know Whitaker Jayne b 25 Jun 1842 was on the ranch from 1900 to ????There is a nice write up in the book Progressive Men of Western Colorado (published 1905) about him.If you haven't seen it, I can send you the link.
My great 2nd great Uncle Hamilton Arthur bought the first part of the ranch in 1902 but I don't know when they acquired the Jayne Place.I just know we always called the part of the ranch where I grew up