Agnes Thomson was born in Brechin, attending the University of Aberdeen to become a teacher but changed her course to medicine, and was the first woman to attain triple degrees, graduating MA (1902), BSc (1905) and MBChB (1907), ultimately becoming anaesthetist, lecturer and general practitioner at Royal Hospital for Sick Children in Castle Street. In 1907, she married Benjamin Thomas, a Schoolmaster who later became the Rector of Forfar Academy. He died in 1934. Their two daughters both graduated in Medicine.
She was active during the first half of the 20th century and was a founding member of the Medical Women’s Federation as well as being instrumental in establishing Aberdeen’s Mothers and Babies Home being a founder member. She was one of the first women in Aberdeen to gain three degrees. 
She served as president of Aberdeen Women’s Citizens Association and supported many other agencies in the city including the Soroptimist Club, Saint Catherine’s Community Centre, Aberdeen Old People’s Welfare Council and the National Council for Women. From 1914 onwards she acted as medical officer to the Mother and Child Welfare Association at Holborn clinic. In 1945 she became president of the Scottish Council of Women’s Citizens Association.
In the P&J of 11 April 1942, there is a report that Thomson chaired the committee which worked to open the Aberdeen Mother & Baby Home at 25 Westfield Terrace “to give young friendless girls a second chance and their babies the best possible start in life”.
Her contribution is recognised by a plaque on Albert Street.
Biography prepared from the nomination made to the University of Aberdeen 525 Alumni project.
