He received his Ph. D. , from NYU in 1949 , writing his dissertation on medieval books of hours .
He joined the U.S. Navy during World War II and after the war , Bober and his wife continued their graduate work .
Bober received Bober 's Ph. D. , from NYU in 1949 , writing his dissertation on medieval books of hours .
He joined the U.S. Navy during World War II and after the war , Bober and his wife continued their graduate work .