O'HANLON, JOHN LESLIE 
- Born: 1856/57 Died: 1943
Architect and engineer of Dublin. According to his 1901 census return, John Leslie O'Hanlon  was born in 1856 or 1857. He was probably a son of John Leslie O'Hanlon , styling himself 'J. Leslie O'Hanlon, Jun.' in 1878 and 1879.(1) As both the elder and the younger man were active in Dublin in the later nineteenth century, it is difficult to know for which of their recorded works each was responsible. The younger O'Hanlon probably worked with his father initially and then practised from various addresses in Dublin. In 1881 he collaborated with M. JUDGE on competition designs for St Peter's Catholic church in Drogheda in 1881.(2) He exhibited five designs, including designs for St Peter's, at the Irish Exhibition of Arts and Manufactures in Dublin in 1882 and two 'architectural drawings' at the Cork Industrial Exhibition the following year.(3) By 1907, according to Thom's Official Directory for that year, he was working in the Irish Lights Office.
John Leslie O'Hanlon  died on 21 December 1943 at the age of eighty-seven and was buried in Malahide. He appears to have married twice. By his first wife, Annie, he had at least six children and by his second, Teresa, at least one more son, also named John Leslie O'Hanlon, who died in 1958.
A collection of designs for the house and demesne of Santry Park, Co. Dublin, in the National Library of Ireland (Ref. A.D. 1574 to 1586) includes a design or designs by a J. O'Hanlon.
RIAI: elected member, 1920;(4) no longer on list of members for 1936.
Addresses:(5) Work: 31 Lower Abbey Street, 1882; 1 Great Brunswick Street, 1882(6)-1883; 3 Lower Merrion Street, 1883;(7) 4 Dame Street, 1886(8)-1888; 190 Great Brunswick Street, 1891-92; 3 Dame Street & 8 Westland Row, 1893; 8 Westland Row, 1896-1900.
Home: Delbrook, Dundrum, 1879(9)-83; 17a Leeson Street, 1890-92; Glengara, Glenageary, 1896; Ardara, Killarney Road, Bray, <=1901->=1907;(9) 26 Gilford Road, Sandymount, 1911; Innisfallen, Malahide, <=1912-->=1913(10)->=1924; Parknasilla, Malahide, 1925-1934.
WORKS: As it is not clear which works are by the elder John Leslie O'Hanlon and which by the younger, all works recorded as being designed by a John Leslie O'Hanlon have been assigned to John Leslie O'Hanlon .
All information in this entry not otherwise attributed is from RIAI membership lists, Malahide Cemetery records, http://www.interment.net/data/ireland/dublin/malahide/mal_lz.htm (last visited, Jun 2011), and the 1901 and 1911 Irish census returns.
(1) IB 20,15 Sep 1878,264; 21, 1 Nov 1879, 344.
(2) RHA 1882, no. 656; in Thom's Directory for 1882 'O'Hanlon & Co., architects' are listed at 31 Lower Abbey Street.
(3) IALE II, 524; the other designs exhibited in Dublin were a competition entry for the North Dublin Union Children's Home (no. 615) and designs for the 'Ladies' Land League Hut' (no. 619) and for a 'Villa Residence' (no. 633)
(4) JRIAI (1921), 2.
(5) From Thom's directories or Jones's transcripts from same and RIAI lists of members unless otherwise indicated.
(6) See note 3, above.
(7) See note 3, above.
(8) IB 28, 1 Sep 1886, 251.
(9) IB 21, 1 Nov 1879, 344.
(10) Irish Times, 26 Oct 1912, 21 Jun 1913..
4 work entries listed in chronological order for O'HANLON, JOHN LESLIE 
|Building:||CO. CORK, CORK, AGRICULTURAL SHOW YARD|
|Nature:||Tenders invited for erecting new agricultural show yard, stand, offices &c. 'at the Park', Apr 1892, for Cork Agricultural Buildings Co. Ltd.
Irish Times, 5 Apr 1892.
|Building:||CO. DUBLIN, PORTMARNOCK, HOUSE & TEA ROOMS|
|Nature:||Large bungalow and tea rooms for Mr E. Carey. Contract given to McCabe Bros, Sandford Rd, Ranelagh.|
|Refs:||IB 62, 14 Feb 1920, 100|
|Building:||CO. DUBLIN, MALAHIDE, CASTLE TERRACE, NO. 002|
|Nature:||Tenders received for alts. and repairs, for Rev. J. Sexton, CC.|
|Refs:||IB 64, 8 Apr 1922, 234|
|Building:||CO. DUBLIN, MALAHIDE, CHURCH OF ST SYLVESTER (RC)|
|Refs:||IB 66, 28 Jun 1924, 584|