Judy Thomas was an operator on EDSAC 2 at Cambridge from August 1961. With the demise of EDSAC 2 and the arrival of the Cambridge Titan Atlas she moved on to operating that machine. In 1965, she went out with one of the Diploma students, Eric Thomas, who she eventually married in September 1967. Both Judy and Eric came to work at the Atlas Computer Laboratory. Judy spent quite a bit of her time at Atlas providing support to the Crystallography community with John Baldwin.