Complex sentence: He later had several jobs, including selling Coca-Cola dispensers to drugstores, working at a General Shoe store, Emerson Drug Company VP, and working as an advertising executive at the Manhattan advertising firm Lennen & Newell.
Split into simpler sentences: He later had several jobs, including selling Coca-Cola dispensers to drugstores, working at a General Shoe store, Emerson Drug Company Vice President. He worked as an advertising executive at the Manhattan advertising firm Lennen & Newell.