SAA, Stadsarchief Amsterdam, NA 103/47-47v, Nots: J. F. Bruijningh. Contract (Power of attorney, Commercial credit) of Hillebrant den Otter, Manuel Rodrigo Vega, Jan Bisschop, Samuel Bisschop, Jacob Geurtsz Cleijnsorch
SAA, Stadsarchief Amsterdam, NA 103/47-47v, Nots: J. F. Bruijningh. Contract (Power of attorney, Commercial credit) of Hillebrant den Otter, Manuel Rodrigo Vega, Jan Bisschop, Samuel Bisschop, Jacob Geurtsz Cleijnsorch