He began worshipping at the local Wesleyan Methodist church, where a fellow-congregant suggested he find employment with Cadbury Brothers, who had an office at Bridge Street, where he commenced in 1879.
In 1922 the firm in Australia became Cadbury-Fry-Pascall Limited, with Cooper as Chairman of the Board of Directors,[2] and was tasked with establishment of a factory in Claremont, Tasmania, prompted by a rapidly expanding market and the Australian Government's continuation of wartime restrictions on imported luxuries.
The Claremont site was selected in May 1920 by the Cooper brothers and Edward Harrison Colleyshaw; they oversaw its development up to 1922 when full-scale production began.
[3] On arriving in Sydney, Cooper joined the Pitt Street Congregational Church, but he could not ignore Quakerism and its connection to Cadbury's and the chocolate industry, which had its foundation in temperance.
[1] Cooper married Ellen Louisa "Lily" Mossop, née Baynes (1866 – 31 July 1951), widow of his friend Rev.