Mary, my only reference for the connection between Henry and dau Ann, is the original research by John Robinson. I only have a summary of his findings, sources are not listed.
In most instances it has been my assumption that he gleaned his findings from research of the actual records during his time on IOM--he lived there for a number of yrs and was engaged in regular research.
Sorry, I can't be of more assistance.
Perhaps it is best if I refrain from posting as I can't defend this information.
Donna