[4][5] The origins of the Bethel Presbyterian Church date to November 5, 1776, when McMillan preached and baptized 5 children at Peter's Creek.

[4] A number of members of Bethel Presbyterian Church played roles in the Whiskey Rebellion.

[6] On July 15, 1794, shots were fired as federal officers served a warrant on William Miller, a Bethel church member and the last man that day in Allegheny County to receive a warrant for failure to register his still, the first violent event of the Whiskey Rebellion.

Reverend Clark, McMillan's successor, tried to dissuade the band: Brethren, fellow citizens and friends, I have come to raise my feeble voice against the business of the day.

Duty, conscience , my office, the spirit of our Divine Lord and Master, a high and loving concern for your temporal and spiritual good, all compel me to warn you not to persist in your hostile purpose.