Complex sentence: He and two other men, E. P. Cooper and P. J. Geary, started the business of Kuhn, Cooper, & Geary, which earned a reputation as the premiere footwear store in downtown Nashville.
Split into simpler sentences: He and two other men, E. P. Cooper and P. J. Geary, started the business of Kuhn, Cooper, & Geary. It earned a reputation as the premiere footwear store in downtown Nashville.