John Warner … m. by about 1641 Priscilla Symonds (eldest known child deposed on 26 March 1679 "aged about thirty-eight years" [Parker-Ruggles 307 citing ILR 1:160], daughter of Mark Symonds {1636, Ipswich} [Parker-Ruggles 438-44; EPR 1:285, 2:33-34].
The March 10, 1655 date probably comes from Hoyt's Old Families of Salisbury and Amesbury, Massachustts 1:340 where he indicates the possibility of a first wife prior to Priscilla. Subsequent treatments by such genealogists as Linzee and Anderson are based on his having only the one wife, mother of all his children.