Mark Powers Mark James Powers, 47, beloved husband of Catherine Powers (Yanoviak) of Unionville, PA died on March 5, 2015 at the University of Pennsylvania Hospital. Born in West Chester, PA, he was the son of Harley and Janice Powers. Mark owned his own business, Powers Plumbing and Heating. He was a trusted and respected businessman in the community, volunteered his time for many years in the...