New York Historical Manuscripts: Dutch, Old First Dutch Reformed Church of Brooklyn, New York, First Book of Records, 1660-1752, published Under the Direction of the Scholarship Committee of The Holland Society of New York, translated and Edited by A. P. G. Jos van der Linde, Genealogical Publishing Co., Inc., Baltimore, MD, 1983 - Anna Marij; parents: Frederick van Leeuwen, Dina Jans; witnesses: Geertreut Willem, Gerrit Lubbertsen.
Documents Relating to the Colonial History of the State of New Jersey, Vol. XXXII: Calendar of New Jersey Wills, Administrations, Etc., Vol. III 1751-1760, Archives of the State of New Jersey, First Series, A. Van Doren Honeyman, ed., The Unionist-Gazette Association, Printers, Somerville, NJ, 1924; she is not mentioned in her husband's, Jacob Probasco's, will so she would have been deceased when he wrote it.