[3][4] His father was an admitted freeman of New York City and served for 22 years as a Commissioner of Indian Affairs.
[2] In 1742, Cuyler was appointed and served as the Mayor of Albany, succeeding Johannes de Peyster III who was re-nominated but did not take the oath of allegiance required of officeholders.
[3] For a total of fourteen years, he served as Commissioner of Indian Affairs for the Province of New York, appointed in 1734, 1739, 1742, 1745, 1752, and 1754,[5] which brought him into contact with Sir William Johnson, 1st Baronet, both as a client and adversary.
Together, Cornelius and Catharina were the parents of eleven children, including:[3] Cuyler died on March 14, 1765, in Albany.
[19] Through his son Abraham, he was the grandfather of Jacob Glen Cuyler (1773–1854), who became a British army officer who was instrumental getting the 1820 Settlers to South Africa.