Panama Canal Railway
The Panama Railway also operated a significant shipping line, connecting its service with New York and San Francisco. It ran a Central American line of steamships linking Nicaragua, Costa Rica, San Salvador, and Guatemala to Panama City. The shipping service was greatly expanded when canal construction began. Ships included the SS "Salvador", SS "Guatemala", SS "Cristobel", and , which became the first of the ships to cross the completed canal in 1914.
In 1904 the United States took over the license to build and operate the canal. The choice to use locks and an artificial lake (Gatun) meant that the old railway route from 1855 had to be changed because it followed the Chagres River valley, which would be flooded by the lake. Also, the railway would be extended and altered continuously for the building process. The stock of the Panama Railway Company, vital in canal construction, was entirely controlled by the United States Secretary of War.
Henry Larcom Abbot
"Brig. Gen. Henry Larcom Abbot, coauthor of a classic work on the hydrology of the Mississippi River, began his involvement with the Panama Canal as a member of the new French canal company's Comité Technique and Comité Statutaire, from 1897 to 1900. While the United States was assuming responsibility for building the Canal, Abbot worked for the French company as a consulting engineer during the transitional period, dividing his time between Paris and the isthmus. After the Americans assumed control of the project Abbot served from 1905 to 1906 on the Board of Consulting Engineers, a body appointed by Theodore Roosevelt and charged with the preparation of a plan for canal construction. The majority of the board recommended a sea-level canal. The minority report, probably written largely by Abbot, helped to persuade Roosevelt and Secretary of War William Howard Taft to adopt a plan for a lock canal. Abbot's last service to the canal was as a member of the Panama Canal Slide Committee in 1915."