Clayton Valley Presbyterian Church is part of PC(USA); an abbreviation for Presbyterian Church (U.S.A.), It is one of the mainline Protestant Christian denomination in the United States. A part of the Reformed tradition, it is the largest Presbyterian denomination in the US, and known for its relatively progressive stance on doctrine. The PC(USA) was established by the 1983 merger of the Presbyterian Church in the United States, whose churches were located in the Southern and border states, with the United Presbyterian Church in the United States of America, whose congregations could be found in every state.
Presbyterians trace their history to the 16th century and the Protestant Reformation. Our heritage, and much of what we believe, began with the French lawyer John Calvin (1509-1564), whose writings crystallized much of the Reformed thinking that came before him.
Many of the early Presbyterians in America came from England, Scotland and Ireland. The first American Presbytery was organized at Philadelphia in 1706. The first General Assembly was held in the same city in 1789. The first Assembly was convened by the Rev. John Witherspoon, the only minister to sign the Declaration of Independence.