Dictionary of Irish Architects 1720 - 1940

Architect, of Cork, and Philadelphia, USA, active from the 1840s until 1863. If the notice of his death in the Philadelphia Inquirer is correct in giving his age as forty-three, John Thomas Mahony was born in 1819 or 1820.  According to a note in The Builder, recording his success in winning the $500 premium for a design for the proposed St John's Orphan Asylum in Philadelphia in 1851, he came from Cork.(1) By 1850 he had emigrated to Philadelphia, where he worked on the church of St James the Greater (1850-1852) and was also involved in some way in the building of the Catholic cathedral of St Peter and St Paul (1846-1864).  He died in Philadelphia on 30 December 1863(2) and was buried in the cathedral cemetery. (3) Drawings for St John's Orphanage are in the Athenaeum of Philadelphia.

Address: 143 Walnut Street, Philadelphia, 1852;  2120 Wallace Street, Philadelphia, at time of death.



All information in this entry not otherwise accounted for is from www.philadelphia buildings.org and  from the wife of John Thomas Mahony's great-great-great grandson, Jennifer J. Regan, who supplied his second name and copies of his death certificate and notice of death in the Philadelphia Inquirer, 2 Jan 1864 (Mar 2009). 

(1) B 9, 8 Mar 1851, 152; Slater's National Commercial Directory of Ireland lists three builders named Mahony in Cork in 1846, of whom one, William, of 34 Nile Street, is also described as an architect.
(2) His death certificate gives the cause of death as 'Congestion of Brain'.

1 work entries listed in chronological order for MAHONY, JOHN THOMAS

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Date: 1851
Nature: J.T.M wins competition & $500 premium.
Refs: B 9, 8 Mar 1851, 152.