First grain elevator in Philadelphia

On page 121, I mention that it wasn't until the late 1850s (fifteen years after the construction of the Dart Elevator) that Philadelphia, Pennsylvania got its first one. John Mayer's Workshop of the World - Philadelphia, which was published as a book by Oliver Evans Press in 1990, confirms that the first grain elevator in Philadelphia was constructed in 1859 by the Pennsylvania Railroad Company and that, beginning in 1862, floating elevators were also deployed. I will return to the subject of other grain elevators in Philadelphia (the Iron Elevator, built in the 1860s, and the Girard Point Elevator, built in the 1910s) in subsequent blog posts.