Source Information

Ancestry.com. Descendants of Jeremiah Jagger (Gager), of Watertown, Mass., 1630 and John Jagger, of Southampton, L.I., 1641 [database on-line]. Provo, UT: Ancestry.com Operations Inc, 2004.
Original data: Gager, Harry G.. Descendants of Jeremiah Jagger (Gager), of Watertown, Mass., 1630 and John Jagger, of Southampton, L.I., 1641 : with references to Dr. William Gager, of Charlestown, Mass., 1630. San Francisco: unknown, 1986.