sentences:  While much of his involvement with physics is still highly classified, he made many contributions in the open literature including physics education and astrophysics.He was born in New York City in 1925, to Henry Auchincloss and Jeanette Thurber (née Pruyn) Colgate.Colgate attended Los Alamos Ranch School until 1942 when a military delegation along with input from Robert Oppenheimer and Ernest O. Lawrence decided to close the school.