 Gallop established a market garden, an orchard and a vineyard on land he purchased on Brisbane Street in Perth, and became a member of the Perth Horticultural Society in 1875.He was included in the list of 100 most influential West Australian business leaders (1829–2013) published in "The West Australian" newspaper, for his contribution to the development of agriculture in Western Australia.Gallop is the great-great-uncle of Geoff Gallop, Premier of Western Australia from 2001–2006.