In addition to Jackson and Parker, other prominent shareholders of the bank included William Appleton, Nathan Appleton, Timothy Bigelow, John Brooks, Gardiner Greene, Henry Hubbard, Augustine Heard, Amos Lawrence, Abbott Lawrence, Luther Lawrence, William Prescott, Dudley Leavitt Pickman, and Benjamin Seaver.This practice caused many people to doubt the exact worth of certain notes and in turn have little faith in some banks.The Suffolk System was the predecessor to modern banking practices and led to the creation of the Federal Reserve that still operates today.The Panic of 1837, a deflationary backlash inducing depression and unemployment, was caused by many different factors including the practices of the Second Bank of the United States and political failures.These practices included, lending reserves to other banks and keeping the payment system operating.[10] Although the Suffolk System was a great regulator of unsound banking practices, it lacked the ability to properly administer the total volume of banknote circulation.The Suffolk System's many good qualities could no longer outweigh the lack of their ability to increase note circulation."[16] John Jay Knox Jr., a former Comptroller of the U.S. Treasury, stated that the success of the Suffolk Bank demonstrated that:
Massachusetts 1 dollar bill from 1845 marked "Worthless" by the Suffolk Bank.
Banknotes with a face value of 5000 of different currencies.