Reunited following the end of the war, Janet and Thomas were offered the opportunity to head up a new department at the Bowman Gray School of Medicine in Winston Salem, North Carolina. She took up the post of assistant professor of preventive medicine in the spring of 1946. Janet, became a US citizen in 1948. In 1952, she left the school and became a medical consultant to the US Public Health Service. Continuing to live in Winston Salem, Welch worked out of Washington DC, but she worked around the world, with developing communities both within and outside the US. She is recorded as having been a US Public Health Service adviser in Thailand (1954) as well as with native American communities in the southwestern United States, Alaska and Hawaii. By 1953, she was also a consultant to a World Health Organisation expert committee in Geneva. Welch retired from the US Public Health Service in 1958, at the age of 64. She continued to work with the WHO. however, contributing to several publications and reports.
Reunited following the end of the war, Jason and Thomas were offered the opportunity to head up a new department at the Bowman Gray School of Medicine in Winston Salem, North Carolina. He took up the post of assistant professor of preventive medicine in the spring of 1946. Jason, became a US citizen in 1948. In 1952, he left the school and became a medical consultant to the US Public Health Service. Continuing to live in Winston Salem, Welch worked out of Washington DC, but he worked around the world, with developing communities both within and outside the US. He is recorded as having been a US Public Health Service adviser in Thailand (1954) as well as with native American communities in the southwestern United States, Alaska and Hawaii. By 1953, he was also a consultant to a World Health Organisation expert committee in Geneva. Welch retired from the US Public Health Service in 1958, at the age of 64. He continued to work with the WHO. however, contributing to several publications and reports.