John A. Miller

John A. Miller (born August John Mueller; 1872 – June 24, 1941) was an American roller coaster designer and builder, inventor, and businessman. Miller patented over 100 key roller coaster components, and is widely considered the "father of the modern high-speed roller coaster." During his lifetime, he participated in the design of approximately 150 coasters and was a key business partner and mentor to other well-known roller coaster designers, Harry C. Baker and John C. Allen.

John A. Miller

John A. Miller (born August John Mueller; 1872 – June 24, 1941) was an American roller coaster designer and builder, inventor, and businessman. Miller patented over 100 key roller coaster components, and is widely considered the "father of the modern high-speed roller coaster." During his lifetime, he participated in the design of approximately 150 coasters and was a key business partner and mentor to other well-known roller coaster designers, Harry C. Baker and John C. Allen.