SAA, Stadsarchief Amsterdam, NA 742/10- 13, Nots: J. F. Bruijningh. Contract (Power of attorney, Freight contract) of Hendrick Broen, Gommer Sprangers, Hans van der Merkt, Claes Claesz
SAA, Stadsarchief Amsterdam, NA 742/10- 13, Nots: J. F. Bruijningh. Contract (Power of attorney, Freight contract) of Hendrick Broen, Gommer Sprangers, Hans van der Merkt, Claes Claesz