an Entity references as follows:
Charles Ellet Jr. (1 January 1810 – 21 June 1862) was an American civil engineer from Pennsylvania who designed and constructed major canals, suspension bridges and railroads. He built the Wheeling Suspension Bridge, the longest suspension bridge in the world from 1849 to 1851. He conducted the first Federal survey of the Mississippi and Ohio rivers as part of the U. S. Army Corps of Engineers.