In 1915 the Leader's moved to Quincy, Illinois, where they consolidated along with Dayton Foundry and Machine Company and Hayton Pump Company into Dayton-Dick Company.
Vuonna 1915 Leader Company muutti Illinois'n Quincyyn, jossa se yhdistyi Dayton Foundry and Machine Companyn ja Hayton Pump Companyn kanssa Dayton-Dick Companyksi.