Cassatt immediately began a major capital improvement program , which included both adding capacity to mainlines and constructing large stations including Washington Union Station and New York Penn Station .
When Thomson died in 1899 , Alexander Cassatt was recalled to the PRR to serve as president .
Alexander Cassatt immediately began a major capital improvement program , which included both adding capacity to mainlines and constructing large stations including Washington Union Station and New York Penn Station .
When Thomson died in 1899 , Alexander Cassatt was recalled to the PRR to serve as president .