Jerry, Thanks for responding. Yes I do have Celia in the 1850 census. But didn’t know what happened to her after that. I figured she was a sister of Peter, as he and Jane named their second child Celia (d. at 2 months.)It seems Peter didn’t settle in Minnesota until 1857, after the birth of a 3rd child in Blackstone.I have more information on the Mulgrews who stayed in Massachusetts, which I’d be happy to share, and I would really appreciate hearing about Celia. Thanks very much.