Born April 20, 1919, in Manchester, he was the son of Bernard deGroseilliers and Beatrice (Chagnon) DeGross Robinson and the stepson of the late Lewis
He graduated from Central High School in Manchester in 1937 and from the University of New Hampshire in 1944 with a B.A. and in 1946 with an MBA.
After graduating from college, he taught high school in Dover and Newmarket for a few years. He left teaching to become an entrepreneur. He started his own business, Investment Properties Corporation. He pursued a career as a real estate purchaser and developer until his retirement in 2009.
He leaves behind his wife, Linda (McWhorter) DeGross of Durham; four cousins, Francine Letendre of West Linn, Ore., Susan Morin of Manchester, Cynthia
Ruonala of Nashua and Roy Montembault of Midwest City, Okla; and many longtime and close friends.