He was Anglican, but had very strong Quaker leanings. His wife attended meetings with the Friends in Evesham, yet wasn't a Quaker.
Interestingly enough, the son, Charles Junior was a colonel in the New Jersey militia. However he took advantage of an offer by the British to lay down his arms in exchange for protection. Of course, there wasn't much protection - he was soon caught by the Continental Army, jailed in Philadelphia for a time, released back to Etna, and lived out the rest of his (short) life known as a traitor.