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John Harold Mostyn

1887 – 1956

56th Lord Mayor of Sydney and rugby league administrator

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About John Harold Mostyn

Lived 1887 – 1956 (aged 69). John Harold Mostyn was a politician.

John Harold Mostyn (1887 – 9 July 1956) was the 55th Lord Mayor of Sydney and a rugby league administrator.

Early life and background Jack Mostyn was born at Orange, New South Wales in 1887 and was an electrician by trade.

Political career Mostyn was elected as an Alderman of the City of Sydney for Camperdown Ward for the Australian Labor Party in 1924. In 1927 he became Lord Mayor of Sydney. He left office in early 1928, with the dismissal of the City of Sydney and its replacement by a board of commissioners.

NSW Rugby League Mostyn became the president of the St George District Rugby League Football Club in 1938 and stayed in that role for eight years until 1944, when he lost a ballot for re-election. He was president during the club's first premiership win in 1941. Mostyn was also the St. George Dragons delegate to the NSWRFL for many years.

Later life A long time resident of Carlton, New South Wales, Jack Mostyn died on 9 July 1956, age 69. He was later buried at Woronora Cemetery, Sutherland, New South Wales.

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Important facts

People in John Harold Mostyn's life

Named in this biography and alive at the same time

Contemporaries

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Frequently asked questions

Who was John Harold Mostyn?

56th Lord Mayor of Sydney and rugby league administrator

When was John Harold Mostyn born?

John Harold Mostyn was born on 1 January 1887 in Orange.

When did John Harold Mostyn die?

John Harold Mostyn died on 9 July 1956 in Rockdale, New South Wales.

What was John Harold Mostyn's occupation?

John Harold Mostyn was a politician.

Sources & further reading

· Wikipedia: John Harold Mostyn

· Wikidata: Q20983442

· DBpedia: John Harold Mostyn

Cite this page

APA: Biography.guide. (2026). John Harold Mostyn. https://biography.guide/john-harold-mostyn/

MLA: "John Harold Mostyn." Biography.guide, https://biography.guide/john-harold-mostyn/.

Chicago: "John Harold Mostyn." Biography.guide. https://biography.guide/john-harold-mostyn/.

Data last updated: 2026-09-22 · Spot an error? Report a correction.

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