Cox, Harold (2004). "Senate Members "L"". Pennsylvania Election Statistics: 1682–2004. Wilkes University Election Statistics Project. Retrieved January 18, 2020.
Cox, Harold (2004). "Senate Members "M"". Pennsylvania Election Statistics: 1682–2004. Wilkes University Election Statistics Project. Retrieved January 18, 2020.
Cox, Harold (2004). "Senate Members "S"". Pennsylvania Election Statistics: 1682–2004. Wilkes University Election Statistics Project. Retrieved January 18, 2020.