Horatio Mitchell "Mitch" Campbell

Horatio Mitchell Campbell (also known as Mitch or Little Mitch due to his short stature) was an engineer from Texas, most famous for inventing the viewgraph, the forerunner to today's Powerpoint Engineering system used today by all NASA engineers. He served for many years in the US Army Corp of Engineers. From 1898-1902, he was also the captain of HMS Solitaire, which he used to search for the Northwest Passage. After retirement, he settled in the Scottish highlands, where he opened a haggis recycling plant.