[6] The line became the first rail link from Philadelphia to Baltimore (and survives today as part of Amtrak's Northeast Corridor).
[7] Herman, the son, had moved up from his job on the surveying team to the post of assistant engineer, under Samuel Kneass, for the Philadelphia-Wilmington stretch.
[8] Herman Lombaert's work on the PW&B was noted (along with that of his father and brother-in-law) on the 1839 Newkirk Viaduct Monument in Philadelphia.
In his autobiography, Carnegie described Lombaert as "the great man in our railroad field...not sociable, but stern and unbending."
[13] That same year, he traveled to Colombia to lay out a route for a canal to connect the city of Cartagena with the Magdalena River.