Ann McMullan was born in Newcastle upon Tyne on 12 May 1923 to Garth Glendenning and Madelaine Greener.

After the end of the war McMullan went to Germany to work with displaced persons for a local community organisation.

She moved on to Hong Kong for a time before going to South Africa to work with the African Children's Feeding Scheme in Johannesburg.

Continuing to work in charities, McMullan was the head of education for the British Epilepsy Association which was founded in 1950.

[7] She wrote a biography of her cousin Graham Laidler, better known as the cartoonist Pont, which was published posthumously on Kindle in 2022.