Who were the senators that disagreed with the Louisiana Purchase?

Most were members of the Federalist Party like former Senator George Cabot of Massachusetts and Massachusetta Senator Timothy Pickering. Pickering was well qualified to lead the opposition having served as Postmaster General, Secretary of War and Secretary of State. It should be noted that in many cases there were different reasons for opposition to the Louisiana Purchase. Some were against it on Constitutional grounds, some felt it would anger the British and still others felt that it was a waste of good money.