
2) Samuel Rea as a young PRR engineer

3) Board of Directors of the Pennsylvania Railroad Company, July 1905

5) Cleared site of Penn Station looking east

7) The aligning of the Hudson River tunnels

8) Shoving shield--Hudson River silt in tunnel. August 24, 1906

10) PRR engineers walk through the completed north Hudson River tunnel September 12, 1906

11) Schematic drawing of two PRR tunnels under Hudson River

13) Penn Station site and Ninth Avenue and the Elevated before being propped up

14) A May 7, 1908 Harper's Weekly illustration of propped-up Ninth Avenue elevated at Penn Station site

16) Penn Station just before it opened in 1910

17) Penn Station's general Waiting Room looking north to West 33rd Street in 1911

19) Electric engine in Penn Station

20) Dedication of Hell Gate Bridge March 9, 1917, completing New York tunnels and Terminal Project launched in 1901