John Scaddan, CMG, popularly known as "Happy Jack", was Premier of Western Australia from 7 October 1911 until 27 July 1916.

The Electoral district of Brown Hill-Ivanhoe was a Legislative Assembly electorate in the state of Western Australia. It covered part of the Goldfields city of Boulder, near Kalgoorlie, and neighbouring mining areas. It was created at the 1911 redistribution out of the former seats of Brown Hill and Ivanhoe, and was first contested at the 1911 election. It was abolished in the 1948 redistribution, with its area split between the neighbouring electorates of Boulder and Hannans, taking effect from the 1950 election. The seat was a very safe one for the Labor Party.