Complex sentence: The village was officially incorporated on June 11,1879, founded by Franklin Dwight Cossitt, born in Granby, Connecticut and raised in Tennessee, who moved to Chicago in 1862 and built a successful wholesale grocery business.
Split into simpler sentences: The village was officially incorporated on June 11,1879. It was founded by Franklin Dwight Cossitt, who was born in Granby, Connecticut and raised in Tennessee, and who moved to Chicago in 1862 and built a successful wholesale grocery business.