Ritzema, Rudolphus.

Continental army officer, turncoat, and son of Johannes Ritzema of New York. He became Lt. Col. of the 1st New York Regiment on June 30, 1775, and was promoted to Colonel on November 28th of the same year. Later, Ritzema assumed command of the 3rd New York. Left the American army in November of 1776 and subsequently joined the British forces.

From the description of Diary, 1775 Aug. 7-1776 Mar. 30. (New York University, Group Batchload). WorldCat record id: 58775196