Declaration. Of Abraham Willemsen, that he purchased guns and powder in company with Egbert van Borsum. 
Charges. Against Brant van Slechtenhorst. 
July 23 – August 10 1648
New York State Archives. New York (Colony). Council. Dutch colonial council minutes, 1638-1665. Series A1809-78. Volume 4, page 405.
Mutual Cultural Heritage Project