[2][12][13] In 1977, Allanach was appointed by the Secretary of State for Trade, Edmund Dell, to his panel of insurance advisers.
[16] In 1954 she and Pat Merriman and others began a series of informal meetings, such as tea-parties or wine and cheese parties, for the small minority of women in the profession,[2][17] from which developed the Lady Actuaries Dining Club (LADS).
[2] LADS was wound up in 2011, by which time the Institute of Actuaries had its first woman president, Jane Curtis.
[18] Allanach's writing, including a 1964 paper 'The treatment of expenses in the calculation of ordinary branch premiums', was required reading for exams at the Institute of Actuaries.
[19] Allanach was a member of the Friends of the Girls' Public Day School Trust, serving as its Honorary Treasurer from 1962–1972.