[2] In 1813, Bushnell's father Alexander, a ship carpenter, moved his family from New York to Pittsburgh, Pennsylvania.

"[5] In 1851 Bushnell built another towboat, the "Black Diamond," which was used to ship even more coal from the Pennsylvania mines to ports along the region's rivers.

[8] Bushnell's innovation brought about a boom in the Pennsylvania coal business, spurring growth in Pittsburgh and the surrounding towns.

As a result, Bushnell became one of the 37 original Standard Oil shareholders, owning 97 shares in 1878 (compared to Rockefeller's nearly 9,000).

[12] Daniel Bushnell died in Pittsburgh on July 12, 1891, leaving his large fortune to his seven surviving children.