Source Information
Ancestry.com. Fort Casimir : the starting point in the history of New Castle, in the state of Delaware : its location and history, 1651-1671 [database on-line]. Provo, UT: Ancestry.com Operations Inc, 2005.Original data: Cooper, Alexander B.. Fort Casimir : the starting point in the history of New Castle, in the state of Delaware : its location and history, 1651-1671. Wilmington: Historical Society of Delaware, 1905.
