Ruth Teitelbaum

The other five ENIAC programmers were Jean Bartik, Betty Holberton, Kathleen Antonelli, Marlyn Meltzer, and Frances Spence. Teitelbaum was born Ruth Lichterman in The Bronx, New York, on February 1, 1924. She was the elder of two children, and the only daughter, of Sarah and Simon Lichterman, a teacher. Her parents were Jewish immigrants from Russia. She graduated from Hunter College with a B.Sc. in Mathematics. Teitelbaum was hired by the Moore School of Electrical Engineering at the University of Pennsylvania to compute ballistics trajectories. The Moore School was funded by the US Army during the Second World War. Here, a group of about 80 women worked through complex differential calculations and manually calculated the trajectories.