Complex sentence: Funeral services were held at Everybody's Church, a nondenominational church that he had helped establish at 60th Street and Wabash Avenue on the south side of Chicago, and he was buried at Mount Glenwood Cemetery in Thornton, Illinois.
Split into simpler sentences: Funeral services were held at Everybody's Church, a nondenominational church that he had helped establish at 60th Street and Wabash Avenue on the south side of Chicago. He was buried at Mount Glenwood Cemetery in Thornton, Illinois.