Re: Captain William Gerrish
Ann Parker was the widow of Captain John Manning.Can't locate my source right now, but will look. (how embarrasing!)
Joanna Lowell married first John Oliver and had 1 boy child who died in 1642. She then had another child, Mary Oliver, who married Mr Applegate and is listed in William Gerrish's will. Joanna then married William Gerrish and had 10 more children. Birthdate also given as 1619 in Bristol, England by Source:Edward Gerrish Mair
There were two John Oliver's during this timeframe and place and they are often confused.However, I"ve never heard the history that you have for Joanna not being a Lowell.
I certainly have Elizabeth Goodale married to John Lowell, although I have her mother as Elizabeth Porter Taylor, which I've never confirmed anywhere. I don't have any siblings listed, but that is not unusual since it is only a collateral line for me.What is your source and we'll all look further!!These ancestors are certainly confusing sometimes!