Complex sentence: He retained ownership and was President of Onward Hardware Limited for the manufacturing and selling of cabinet and general hardware and developed another Company he owned known as Tawco Limited for commercial cleaning equipment distribution and franchising coin operated laundry and dry cleaning stores.
Split into simpler sentences: He retained ownership and was President of Onward Hardware Limited for the manufacturing and selling of cabinet and general hardware. Witzel, Sr. also owned and developed another company, Tawco Limited, for commercial cleaning equipment distribution and the franchising of coin operated laundry and dry cleaning stores.