Mary "Pollie" Helen Hirst Simpson MBE (22 April 1871–31 October 1947) was a sportswoman, charity organiser and the first agricultural adviser to the National Federation of Women's Institutes (WI).
She excelled at sports, played tennis for Northamptonshire county in 1898 and was captain of the Higham Ferrers Ladies Hockey club.
By her gallant work and devotion to the Institutes she has made a very special place for herself in the history of the Organisation".
[1] She was buried at the parish church of St John the Baptist in Chelveston, alongside other members of the Simpson family.
After she died the local WI rented a room in a cottage, which they decorated with portraits of Simpson and Denman.