Dolores Katz was born in Hollis, NY on November 21, 1924 to Alois and Julia Pracny. She and her sister Anne who was seven years older remained very close throughout their lives. Dolores was valedictorian at her high school and received numerous scholarships to college. She attended Manhattanville College in New York City, graduating in 1946 with a degree in mathematics and physics. In August of 1946 she married Robert Dvorak, also of Queens, NY.
After marriage she worked at Brookhaven National Laboratory on Long Island, leaving in 1948 for the birth of her daughter, Anne. The Dvorak family lived in Sayville, NY, a longtime home of her husband’s family. She had a son, Robert in 1950 and a third child, Charles in 1953.