Thanks for posting the Will so that the community could see it, and posting the source on the profile. It certainly is interesting and a great find. Probates are valuable sources in helping build these connections. How many Thomas Blatchley’s are there in colonial New England, probably not many! Being an amateur, I would call it sufficient, and make a research note. Who knows what will be found in the future to debunk it or prove it beyond a doubt? I would also continue to research the siblings to see if other info surfaces. I’m bias as he is my 9th great grandfather and I would love to see him connected to Old England. I trust the more seasoned genealogists of WikiTree to making that decision. Thanks to the WTer who found it and for sharing it with everyone!