Complex sentence: In Lowell, along with his brother-in-law, John Levy, Lewis opened a barbershop on Merrimack Street and eventually they purchased a two family home in the Centralville section of Lowell.
Split into simpler sentences: In Lowell, together with his brother-in-law John Levy, Lewis opened a barbershop on Merrimack Street. Eventually they purchased a two-family home in the Centralville section of Lowell.