Chairmen
- 1952 – 1962: Joseph Compton, CBE
- 1962 – 1972: Air Chief Marshal Sir Theo Mc Evoy, KCB, CBE
- 1973 – 1975: Alfred Fairbank, CBE
- 1975 – 1975: Dr. A.S.Osley (Acting Chairman)
- 1975 – 1981: Dr. Philip Cranmer
- 1981 – 1987: The Rt. Hon. Sir Patrick Nairne, GCB, MC
- 1987 – 1996: David Nicholls, CB, CMG
- 1996 – 2008: Graham Last
- 2008 – date: Foster Neville
The Chairman Sir Theodore McAvoy welcomes the Queen Mother (Patron of the Society until her death) to an SIH event
Secretaries
- 1952 – 1962: Anna Hornby
- 1963 – 1974: Charlotte Dobson
- 1974 – 1976: Thea Nutter
- 1976 – 1983: Fiona Sturdy
- 1983 – 1985: Gay Pierpoint
- 1985 – 1989: Dr. Eric Vickers
- 1989 – 1991: John Fricker
- 1992 – 1995: Janet Pamment
- 1995 – date: Nicholas Caulkin*
* Editor of the Newsletter & Writing Matters since Sep 1993
Treasurers
- 1952 – 1955: Captain H.C. Foot
- 1955 – 1971: Dr. Geoffrey Ebbage
- 1971 – 1971: Christopher Russell
- 1972 – 1981: Donald Fell
- 1981 – 1985: Ted Greenwood
- 1985 – 1990: Jeffrey Fleet
- 1990 – 1995: Mark Russell
- 1995 – date: Gordon Wratten
Miss Anna Hornby, the Society's first Secretary