Downing Vaux

Vaux was an early associate of two other founding members of the ASLA: he attended boarding school in Plymouth, Massachusetts, with John Charles Olmsted, and worked with Samuel Parsons at Calvert's firm in the 1880s.

In the late 1880s, he assisted his father with the design for Riverside Drive in Manhattan and the Wilderstein estate's grounds in Rhinebeck, both in New York.

On May 8, 1883, Vaux's father, Calvert, reported his son as missing to Inspector George W. Dilks and the New York Police Department.

In 1893, Vaux married Lillian Baker Andrews and they had one daughter, Priscilla, who was born on December 28, 1899, but lived only hours.

He was a member of the American Scenic and Historic Preservation Society, the Architectural League of New York, and the National Arts Club.