1949 - , Dep. of Economic and Social History; Univ. of Liverpool (1996)
1960 - , Ph.D. in History; Utrecht Univ.; 2010; tätig an der Utrecht Univ.; Dep. of Economic and Social History
1952 - , Economic History Dept.; Research School of Social Sciences; Australian National Univ. (1989); Dep. of Immigration and Cultural Affairs; Canberra (1997)