Documentary reference:
SAA, Stadsarchief Amsterdam, NA 379/614, Nots: J. & N. Jacobs. Contract (Statement, Insurance) of Albert Schuijt, Henrick Thibaut, Manuel Carvalho, Duarte Esteves Pina, Steven da Costa, Christoffel Bras, Roelandt van de Perre, Mattheus Blom, Thijs Pieters