Royal Irish Constabulary. In major cities such as Melbourne and Sydney, Irish social and political associations were formed, including the Melbourne Celtic Club, which survives today. The Irish settler in Australia, both voluntary and forced, was crucial to the survival and prosperity of the early colonies both demographically and economically. 300,000 Irish free settlers arrived between 1840 and 1914. By 1871, the Irish were a quarter of all overseas-born. St. Patrick's Day O'Farrell (1995) demonstrates the importance of St. Patrick to the Irish, whether northern or republican, Protestant or Catholic, and how Australian manifestations of the Irish festival evolved. St. Patrick's Day became an expression of Irish identity and was emblematic of Irish culture and traditional separatism that migrated with the Irish to Australia. The early immigrants to Australia from Ireland were mainly members of penal colonies; assemblies or any such expression of Irish culture were not permitted. St. Patrick's Day at first was the exception, because it was not highly political, was ecumenical and was subordinate to the wider recognition of Britain. It is first recorded as celebrated in the colony in 1795. In a series of letters, a P. Cunningham, stated that a St Patrick's Day "jubilee" Ball was being held in Sydney in 1826. The situation changed, however, in the 1830s with the growth of wealthy Irish Catholic emancipists and the introduction of Irish Catholic priests. These factors gave rise to conflicts and tensions that were to remain constant thereafter as the rise and decline of domestic Irish political movements influenced the Irish population in Australia. With the outbreak of World War I, imperatives imposed by the demands of war overshadowed Australian Irish sentiment.<ref>Patrick O'Farrell, "St Patrick's Day in Australia", Journal of the Royal Australian Historical Society'‘ 1995 81(1): 1–16</ref> Orange The idea of fraternity and how to organise it was one of 19th-century Europe's invisible exports to the New World. Fitzpatrick (2005) explores the international diffusion of the Loyal Orange Institution, with comparative reference to Freemasonry, its main model. Three alternative explanations are discussed for its appeal outside Ireland: that it facilitated the assimilation of emigrants, transmitted 'tribal' Irish animosities to fresh contexts, or adapted itself to preexisting sectarian rivalries abroad. These hypotheses are tested using evidence from South Australia, where Orangeism flourished in the absence of heavy Ulster Protestant immigration. A collective profile of Orange South Australia is derived from lodge records showing age, religious