[S1620] MayflowerHistory.com, Caleb Johnson, (Caleb Johns), http://mayflowerhistory.com/Passengers/ConstanceHopkins.php.
William Bradford, writing in 1651, stated that Constance Hopkins had 12 children "all of them living". Only 9 can be documented with existing records. Constance, wife of Daniel Doane, is quite probably one of the three "missing" children, but unfortunately there is no conclusive proof.
Caleb Johnson is rsearcher