Complex sentence: Afer moving to Oxford in the 1960s, Hinkes became involved in issues of race relations and chaired Oxford Community Relations Council he later served on the national executive of the Joint Council for the Welfare of Immigrants.
Split into simpler sentences: Afer moving to Oxford in the 1960s, Hinkes became involved in issues of race relations and chaired the Oxford Community Relations Council. He later served on the national executive of the Joint Council for the Welfare of Immigrants.