From time to time, an acting rector or locum tenens has taken on temporary leadership, or filled a gap between rectors.

Septimus Hungerford was acting rector in 1879.
 He had previously been the rector of St Peter's Cathedral, Armidale.
Later he became the incumbent at St Thomas' Enfield.

William Hough took temporary leadership in 1889 whilst J. C. Corlette undertook the precentorship of Goulburn Cathedral.

Arthur Christian Corlette stood in temporarily for his older brother J. C. Corlette in 1898.

Robert William Phayre Montgomery filled in at St John's after the death of J. C. Corlette, during the period 1900–1901.
 He was an Irishman who came to Australia as a missionary chaplain in 1891.
 After leaving St John's he took up a position as vicar of Cressy
Arthur Killworth M.A. LL.B., acted as rector during the period 1928–1931.

Archdeacon William Apedaile Charlton led St John's for four months in 1939 after the departure of H. S. Cocks.
 He had already served in Sydney churches for 55 years.

James R. Le Huray, Th.
L. was the acting rector during the period 2004–2005.
Rev J.R Le Huray came to St John's from Holy Trinity Kingsford, where he had served for 27 years as Rector.
He is currently at St Jude's Randwick, as Assistant Minister.
From time to time, an acting rector or locum tenens has taken on temporary leadership, or filled a gap between rectors.
Septimus Hungerford was acting rector in 1879.  He had previously been the rector of St Peter's Cathedral, Armidale. Later he became the incumbent at St Thomas' Enfield.
William Hough took temporary leadership in 1889 whilst J. C. Corlette undertook the precentorship of Goulburn Cathedral.
Arthur Christian Corlette stood in temporarily for his older brother J. C. Corlette in 1898.
Robert William Phayre Montgomery filled in at St John's after the death of J. C. Corlette, during the period 1900–1901.  He was an Irishman who came to Australia as a missionary chaplain in 1891.  After leaving St John's he took up a position as vicar of Cressy
Arthur Killworth M.A. LL.B., acted as rector during the period 1928–1931.
Archdeacon William Apedaile Charlton led St John's for four months in 1939 after the departure of H. S. Cocks.  He had already served in Sydney churches for 55 years.
James R. Le Huray, Th.L. was the acting rector during the period 2004–2005. Rev J.R Le Huray came to St John's from Holy Trinity Kingsford, where he had served for 27 years as Rector. He is currently at St Jude's Randwick, as Assistant Minister.
St John's, Ashfield