Vincent's grandparents came from Spain after the First World War. His mother, nearly blind since age two, raised him in Albany, New York. He remembers his kindergarten paintings, painted with pots of tempera paint, and in high school was mentored by his art teacher Mr Wertman, who encouraged him to continue on to Pratt Institute where he got his BFA. He supported himself doing construction throughout college, and he attended night classes at the Corcoran Art School in Washington D.C. while working as an iron worker by day. Vincent was then drafted into the army, and was stationed at Fort Meade in Maryland. During his service he worked as an army illustrator, and met his wife, Bette.
Vincent then began his master's degree in Mexico City at the University of the Americas, and finished his degree at the California College of Arts and Crafts in 1964. Upon graduation Vincent began teaching, and he still teaches anatomy and illustration at the college to this day. He has one son and resides in Alameda, California in an 1880s era Victorian house.