Merton Yale Cady was a prominent architect and builder in Moline, Illinois. He designed various buildings at Chicago World's Fair in 1893, and designed the Riverside Cemetery in Moline. He designed Cast-iron structures and number of buildings for his father-in-law, John Deere, and his enterprise, Deere & Company.

Linus Yale Jr. was an American mechanical engineer, manufacturer, and co-founder with millionaire Henry R. Towne of the Yale Lock Company, which became the premier manufacturer of locks in the United States. He was the country's leading expert on bank locks and its most important maker. By the early 20th century, about three-quarter of all banks in America used his bank locks. He is best remembered for his inventions of locks, especially the cylinder lock, and his basic lock design is still widely distributed today, and constitutes a majority of personal locks and safes.