Father, son join Mesirow commodities group

Thomas C. Willis was named vice president and senior adviser in the commodities unit at Mesirow Financial, and his son, Thomas R. Willis, was named vice president, confirmed spokeswoman Katie Schimmel. Both positions are new. They will report to Sean Harte, managing director in the commodities management group. The two were founding principals of Willis Trading Group, which has been merged with Mesirow Financial’s commodities management group, according to a letter written by Thomas C. Willis to clients of the commodity trading advisory firm.