In 1857 Sargent had designed the Sargent's Magnetic Bank Lock, said to be the first successful key changeable combination lock.
In 1880 Sargent connected one of his combination locks to a delay timer, creating the first time-delay combination locks.
- Rothschild, Alan; Rothschild, Ann (2015). Make : inventing a better mousetrap : 200 years of American history in the amazing world of patent models. Maker Media, Inc. pp. 49–51. ISBN 1457187140.
- "Ill Only Few Hours, James Sargent Dies" (PDF). Democrat and Chronicle. January 13, 1910.
- "S&G | About". Sargent and Greenleaf. Retrieved October 12, 2018.
- Shillling, Donovan (2015). Made in Rochester. Pancoast Publishing. pp. 220–221. ISBN 0983849668.