"[4] At eighteen years of age, he emigrated to the United States and became a resident of Chicago, where "he was connected with the business of manufacturing telescopes."

Its body featured flared metal tubing for extra strength at the joints, which were brazed by immersion in molten brass.

This was an era where horseshoe nails and other sharp debris were common on roads and tires typically had to be repaired every 100 miles.

Jeffery was one of America's first men interested in automobiles, and in 1897 he built the first Rambler motor car.

It had a tiller-type steering and was powered by a 5 horsepower (4 kW; 5 PS) engine mounted under the seat The 1900 Rambler Stanhope model was displayed at the first New York National Auto Show in Madison Square Garden.

[5] The 1901 Rambler Model A also featured a front-mounted engine and the steering was positioned on the left side for right-hand traffic.

He used the G&J money to buy the Sterling Bicycle Co. factory in Kenosha, Wisconsin, where he began to manufacture automobiles to produce them on a large scale.

Among them was a five-passenger, $2,500 Rambler weighing 2,600 pounds (1,179 kg) and powered by a 40 horsepower (30 kW; 41 PS) engine.

His company also assisted all motorists by financing the first road signs that were put up in Kenosha County, Wisconsin.