John B. Jervis was the designer for both the Delaware & Hudson and the Saratoga & Schenectady railroads. These two railroads were connected via America's very first junction which was in Schenectady.
More details can be found here.
|No.||Class||F.M. Whyte||Gauge||Railroad Line||Location||Status||Builder Info||Notes|
|7||4-2-0||4'-8½"||C&NW (U&S)||Chicago History Museum, Chicago, IL||display||Baldwin #37, 1837||Named Pioneer, oldest surviving C&NW steam locomotive|
|13||4-2-0||4'-8½"||B&O||B&O Railroad Museum, Baltimore, MD||operational||B&O (Mt. Clare), 1927||Named Lafayette, replica|
|4-2-0||5'||Raleigh & Gaston||Tornado Locomotive Building, Hamlet, NC||display||non-functional replica named Tornado|