Age 87, of Mt. Washington, on Monday, February 23, 2015. Beloved wife for 57 years of the late Herman "Herky"; loving mother of Paul F. (Patricia), Keith R. (Lee Ann) and the late David M. Knell; cherished grandmother of Alexandra, April, Katherine, Andrew and Samuel; sister of the late Ruth Windle. Lois along with her husband Herky was the owner and operator of the family bakery, Knell's Bakery in Mt. Washington, which was in the family for 71 years. She also was part of the music ministry at Mt. Lebanon Baptist Church for 29 years.