He retired from the American Museum of Natural History in 1944 and from Columbia in 1945, and moved permanently to his house in Woodstock, New York, with his second wife Angela, whom he had married soon after Laura's death in 1937.
Retirouse do American Museum of Natural History en 1944, e da Universidade de Columbia en 1945, trasladose permanentemente a vivir na súa casa en Woodstock, Nova York, coa súa segunda esposa Angela, coa que casara pouco despois da morte de Laura en 1937.