The Senate began work on April 6, 1789, when a majority of senators arrived, establishing a quorum, or the minimum number required to conduct business. Since they met behind closed doors, the senators needed a doorkeeper to guard their privacy. They chose James Mathers for this job on April 7 (later expanding his position to Doorkeeper and Sergeant at Arms).

The next day, Samuel Otis became Secretary of the Senate, responsible for keeping a journal, buying supplies, managing payrolls, and paying bills. Within three weeks, senators also elected their first chaplain: Samuel Provoost, the Episcopal bishop of New York. Choosing these officers laid the foundation for today’s extensive Senate organization.