Some information from Mary Sarah Bradley.
Some information from Mary V. DeWitt’s DeWitt Genealogy (privately published).
For a deeper look at the entire scope of the Hammond family, please see Page 558 of the Genealogical Society of Bergen County [New Jersey]’s Website:
As of February 2014, the current version of Page 558, dedicated to the Hammond family, had been most recently updated in November 2013. It includes a wealth of family links, sketch and detail information on many generations of Hammonds.