The St. Thomas City Council is the governing body of the city of St. Thomas, Ontario, Canada. It is made up of a mayor and seven aldermen who are elected on an "at-large" basis. Elections for the city council are held every four years. 2006-2010 City Council Elected in the municipal elections of 2006 for St. Thomas, Ontario, Canada. It served the city from December 1, 2006 – November 30, 2010. Mayor Cliff Barwick Heather Jackson-Chapman Bill Aarts Gord Campbell Tom Johnston Terry Shackelton Lori Baldwin-Sands David Warden 2010-2014 City Council Elected in the municipal elections of 2010 for St. Thomas, Ontario, Canada. Mayor Heather Jackson Lori Baldwin-Sands Gord Campbell Mark Cosens Tom Johnston Jeff Kohler David Warden Sam Yusuf Alderman Sam Yusuf stepped down from council April 24, 2013. On May 6, 2013, council appointed Cliff Barwick to council to fill the vacancy. External links St. Thomas City Council information St. Thomas City Council Municipal councils in Ontario St. Thomas, Ontario