As such they met in Philadelphia, July 15, each taking without hesitancy the prescribed test oath and then organized by the selection of Benjamin Franklin, president; George Ross, of Lancaster, vice president, and John Morris and Jacob Garrigues, secretaries.
On July 18, Owen Biddle, Colonel John Bull, the Reverend William Vanhorn, John Jacobs, Colonel George Ross, Colonel James Smith, Jonathan Hoge, Colonel Jacob Morgan, Colonel Jacob Stroud, Colonel Thomas Smith and Robert Martin were appointed members of a committee to “make an essay for a declaration of rights for this State.”
On July 24 the same persons were directed to draw up an essay for a frame or system of Government, and John Lesher was appointed in place of Colonel Morgan, who was absent with leave.
The same day the convention established a Council of Safety to exercise authority of the Government until the new Constitution went into effect. At the head of the Council was Thomas Wharton, Jr.
During the convention the delegates not only discussed and perfected the measures for the adoption of a Constitution, but assumed the supreme authority of the State, and legislated upon matters foreign to the object for which it was convened. Not only did it form the Council of Safety, but it approved of the Declaration of Independence, recently adopted by the Continental Congress, and also it appointed justices of the peace, who were required, before assuming their functions, to each take an oath of renunciation from the authority of King George III, and one of allegiance to the State of Pennsylvania.
July 25, Colonel Timothy Matlack, James Cannon, Colonel James Potter, David Rittenhouse, Robert Whitehall and Colonel Bertram Galbraith were added to the Committee on the Frame of Government.
The convention completed its labors on September 28, by adopting the first State Constitution, which went into immediate effect, without a vote of the people.
The Constitution as finally adopted vested all legislative power in the General Assembly of the Representatives of the freemen to be composed for three years of six persons annually chosen from the City of Philadelphia and six from each county of the State including Philadelphia, outside the city, afterwards the representation to be apportioned every seven years to the number of taxable inhabitants.
Laws, except in sudden necessity, were not to be passed until the next session after proposal. The executive power was vested in a Supreme Executive Council of twelve elected members, one from the City of Philadelphia, and one from each of the counties, including Philadelphia, so chosen that one-third would retire each year and no member, after serving three years, should be eligible within four years.
A president and vice president were to be annually chosen from this body, by the joint ballot of the Councillors and Assemblymen. New counties were each to have a councillor. The president and the Council, five of whom constituted a quorum, were to appoint all Judges, the Attorney General, etc.