|10 May 1829 in Berwick-on-Tweed, England.|
|4 February 1885 at Melbourne, Vic.|
|6 February 1885 in St Kilda Cemetery, Vic.|
|Arthur Byram Gowan (1788-1867)|
|Margaret Denovan (1790-1865)|
|Helen Long (1836-1906) on 5 July 1860 at St Paul's, Melbourne by Rev S L Chase.|
|John Denovan Gowan (1866-1896) (eldest son)|
|Caroline Mary Gowan (1868-1944) (m. 1895 Arthur Begg)|
|Estelle Jane Gowan (1874-1946)|
|Bryan Rutter Gowan|
|Agnes Elizabeth Gowan|
|Was resident in Melbourne at the time of the arrival of Rev Kerr Johnston in 1853.|
Home was called Byram, St Kilda.
The National Gallery of Victoria has a book presented to J D Gowan on his retirement from Lyell & Gowan and on the eve of his departure for Europe in 1872.
Death—Berwick Advertiser 27/3/1885: At his residence Byram St., St. Kilda, Melbourne, on the 4th Feb., John Denovan Gowan, youngest son of the late Arthur Byram Gowan, of Berwick upon Tweed, aged 55.
References to descendants in The Argus of 20 Oct 1936