§ Anderson, George. Will at the Rockland County Surrogate Court, 1842.
§ Bank check from Rockland County National Bank of Nyack. December 21, 1866.
§ Civil War Pension Applications of Eliza Conklin, widow of Nicholas Conklin, 1898, 1899.
§ Cole, David. History of Rockland County, New York. New York: J.B. Beers and Company, 1884.
§ Death certificates issued in Rockland County, New York from 1895 to 1918.
§ Doig, Stephen Garrettson. Will at the Rockland County Surrogate Court, Liber 64/page 511. May 22, 1951.
§ eBay. Rockland County postcards and land deeds available at http://www.ebay.com.
§ Federal censuses of Rockland County, New York for 1800, 1810,1820,1830,1840,1850,1860,1870,1880,1900,1910,1920 and 1930.
§ Funeral invoices issued in Rockland County, New York.
§ Gurnee, James F. Will at the Rockland County Surrogate Court. Probated October 5, 1801.
§ History For Sale. Autographs available at http://www.historyforsale.com.
§ Hopper, Edward. “LesDeux Pigeons” Terra Foundation For American Art. Available at http://www.terraamericanart.org/collections
§ Land deeds of Rockland County, New York from 1840 to 1919.
§ Marriage certificates issued in Rockland County, New York from 1879 to 1930.
§ Naturalization applications submitted in Rockland County, New York in 1856, 1870 and 1895.
§ Petitioning creditors list for Haverstraw and Ramapo, New York residents, circa 1840-1849.
§ Postcards and personal letters received by the Tremper and Zorn families of Rockland County, New York between 1904 and 1920.
§ Riker, James. Harlem: Its Origin and Early Annals. New York: Privately printed, 1881.
§ “Rockland County Archivist Naturalization Database.” Available at http://www.rootsweb.com/~nyrockla/rcnaturalizations.htm
§ Rockland County Archives. Notes to the County Clerk of Rockland County, NY. Provided by Joan Brooks of Stony Point, NY.
§ Rockland County Supreme Court affidavit. “Catharine Gurnee vs. Edward J. Tremper,” Judgment #4268, Box 27, Folder 2402, Document 16. August 11, 1886.
§ Tremper, Catherine. Birth certificate issued in Rockland County, New York in 1911.
§ Tremper, John J. War of 1812 pension application, 1871.