Author: John H. Armstrong
Alternate names: জন আর্মস্ট্রং; Armstrong, John H.; John Armstrong; Armstrong, John H., 1920-2004; John H Armstrong
Born: 18 Nov 1920
Died: 28 Jul 2004
Bio: John H. Armstrong (November 18, 1920 – July 28, 2004) was a mechanical engineer, inventor, editor, prolific author, and model railroader best known for layout design and operations.