John Francis Hennessy (1853–1924) was an Australian architect practicing in New South Wales in the 1880s-1910s, concentrating on projects for the Catholic Church.
[1] John Francis Hennessy was born in Ireland about 1853, and grew up and trained in architecture in Leeds, and London.
Both were devout Catholics, active in Church charities, and were friends of Archbishop (Cardinal) Moran, and were commissioned for a number of large projects for the church, including two large colleges and the Cathedral of St Mary and St Joseph in Armidale, in country NSW.
John Hennessy died only a year after retiring in November 1924 at his home in Belmore Street, Burwood.
His requiem mass was held at St Mary's Catholic Church in Concord where he regularly worshipped.