It was the location of the death of the former premier of Western Australia James Mitchell in 1951,[3] on a train on the Donnybrook–Katanning railway line.[4] Mumballup was once a siding on the Donnybrook–Katanning railway but the railway line ceased operation in 1982.[5][6] The Mumballup siding, which opened in 1908, was closed in 1980.[7]
^Higham, G. J. (Geoffrey J); Geoproject Solutions (2005), Gone West : explorer's guide to places from Western Australia's past (1st ed.), Geoproject Solutions, ISBN978-0-9758024-1-0 page 64 offering two spellings - Mummballup (1913) and renamed to current spelling (1948) - located at 150m 30c on the railway system.
^Bibbulmun Track. Map 3, Collie : Harvey-Quindanning Road to Mumballup / cartography by Information Management Branch, Department of Conservation and Land Management.
^"Welcome to the Shire of Donnybrook Balingup". www.donnybrook-balingup.wa.gov.au. Shire of Donnybrook–Balingup. Retrieved 17 July 2024. The Shire of Donnybrook Balingup acknowledges the traditional custodians of the land, the Wardandi People of the Noongar Nation