Anson Single Member Constituency was a constituency in Singapore. It used to exist from 1959 to 1988 and was merged with Telok Ayer and became Kreta Ayer division in 1988. J.B. Jeyaretnam won the election in 1984 in the Workers' Party of Singapore and now it is part of Radin Mas SMC.
References
Anson Single Member Constituency Wikipedia(Text) CC BY-SA