 In 1924, he returned to Australia to become an orchardist in Merricks and living at "Moelfre".He was president of the Victorian Fruit Marketing Association (1931–38), Victorian growers' delegate to the Australian Apple and Pear Council (1931–38), member of the Commonwealth delegation to the Imperial Fruit Marketing Committees meeting in London (chairman in 1934, vice-chairman 1936), and a member of the committee which prepared the Australian case for the Ottawa Conference in 1931.In 1949, Brown was president of the Victorian Fruitgrowers Council and vice president of the Australian Fruitgrowers Association.