Lewis O. Thomas, 79, of Mason City passed away at 11:34 a.m. at Abraham Lincoln Memorial Hospital on August 7, 2017. A funeral will be held for Lewis on Saturday, August 12, 2017 at the Assembly of God Church in Mason City at 11 a.m. Visitatioin will be held before the service from 9:30 to 11 a.m. also at the church. Pastor James Sprinkel will officiate. Burial will follow at Mason City Cemetery in Mason City. Memorial contributions may be made to the Assembly of God Church in Mason City. Online condolences may be left for the family at www.hurleyfh.com Hurley Funeral Home in Mason City, IL is assisting the family with arrangements.