Kiliaen the son of Kiliaen van Rensselaer (1845-1905) and his wife Olivia Phelps Atterbury (1848-1923). The Van Rensselaers were one of the wealthiest families in New York. Kiliaen's ancestor and namesake obtained from the Dutch West India Company a large grant of land encompassing most of what became Albany and Rensselaer counties. The Van Rensselaer family ruled this area as patroons until about 1830 when the manor was divided up among the heirs; Kiliaen was the fifteenth patroon of Rensselaerwyck and thirteenth lord of the manor. Kiliaen's great-grandfather Stephen Van Rennselaer (1764-1839) served in the state senate and as a lieutenant-governor of New York during John Jay's term as governor. Kiliaen was a veteran of the Spanish American War, after which he became affiliated with, and later a partner in, the New York Stock Exchange firm of Thomas H. Manson & Co. Kiliaen married Dorothy Manson. [Compiled from sources and references recorded on CMS]
Bibliography
1913
Cutter, William Richard, ed. Genealogical and Family History of Southern New York and the Hudson River Valley. 3 vols. New York, 1913: 1:11-12
1949
The New York Times. 24 August 1949: 25 (obituary)
1956
Van Rensselaer, Florence. The Van Rensselaers in Holland and America. New York, 1956: 73-74