David Crosby isn't just another California singer, he had roots.
Crosby was related to the Van Cortland and Van Rensselaer family.
The Van Cortlandt family was an influential political dynasty from the seventeenth-century Dutch origins of New York through its period as an English colony, then after it became a state, and into the nineteenth century. It rose to great prominence with the award of a Royal Charter to Van Cortlandt Manor, an 86,000-acre (35,000 ha) tract in today's Westchester County sprawling from the Hudson River to the Connecticut state line granted as a Patent to Stephanus Van Cortlandt in 1697 by King William III.
The Van Rensselaer family is a family of Dutch descent that was prominent during the 17th, 18th, and 19th centuries in the area now known as the state of New York. Members of this family played a critical role in the formation of the United States and served as leaders in business, politics and society.