'Mary GRISWOLD [child of Francis and Mary Griswold], born 28 Aug 1639 [footnote History of Cambridge, Massachusetts; p.331; states 28 Oct 1639] in Cambridge, Suffolk, Massachusetts. Died young.'
It is unclear why this book would state Aug when the published VR states Oct and the author was aware of the another source stating Oct. This appears to be a case of different interpretations of the 8th month (Oct in the old-style dating in effect at the time, and Aug in new-style dating). If so, Oct would appear to be correct.