Colt had set up libraries and educational programs within the plants for his employees. Colt's armories in Hartford were seminal training grounds for several generations of toolmakers and other machinists, who had great influence in other manufacturing efforts of the next half century. Prominent examples included F. Pratt and A. Whitney (as mentioned above); Henry Leland (who would end up at Cadillac and Lincoln); Edward Bullard Sr of the Bullard firm; and, through Pratt & Whitney, Worcester R. Warner and Ambrose Swasey (of Warner & Swasey).