Samuel Waugh was assistant Secretary of State for Economic Affairs in the Eisenhower Administration. He became involved with the loan negotiations in 1954 for the ECSC when the Secretary of the Treasury, George Humphrey was placing conditions and restrictions on the loan, particularly as American coal and steel producers were having problems. Waugh after discussion with Monnet and Donald Swatland confronted Humphrey about his precluding the Community from the option of getting further loans in Europe. As a result this restriction was lifted. After Monnet resigned as President of the High Authority, he gave Waugh an autographed copy of his book «Les Etats Unis d'Europe ont Commencé». Waugh later became Assistant Secretary of State for Economic Affairs and was subsequently made President of the Import-Export Bank, where he was involved in the discussions for a loan to EURATOM, like the one granted to the ECSC.

The originals are held in various Archives and Presidential Libraries in the USA