||D Black and G Bolton, eds, Biographical Register of Members of the Parliament of Western Australia: volume one 1870-1930, Parliamentary History Project, Perth, WA, 2001, p. 15.
||GC Bolton, Alexander Forest, Melbourne, Oxford University Press, 2000, p. 82.
R Erickson, ed, The bicentennial dictionary of Western Australians, pre-1829-1888, volume II, University of Western Australia Press, Nedlands, WA, 1987.
E Russell. A history of the law in Western Australia and its development from 1829 to 1979, University of Western Australia Press, Nedlands, WA, p. 239–240.
CT Stannage, The people of Perth: a social history of Western Australia's capital city, Perth City Council, Perth, 1979, p. 196–205.
Tom Stannage, 'Horgan, John (1834–1907)', Australian Dictionary of Biography, National Centre of Biography, Australian National University, http://adb.anu.edu.au/biography/horgan-john-6733/text11629, published first in hardcopy 1983, accessed online 22 December 2015.
WA Bulletin, 2 June 1888.
Western Mail, 13 July 1907.