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Registernummer under krigen: London 34592, NY 4778.
Ble amerikansk (USA) statsborger i 1949. Bosatt i California i 1982.
I brev fra Det hvite hus, signert president Harry Truman:
"Leif Skarpnes. To you who answered the call of your country and served in its Merchant Marine to bring about the total defeat of the enemy, I extend the hearfelt thanks of the Nation. You undertook a most severe task - one which called for courage and fortitude. Because you demonstrated the resourcefulness and calm judgment necessary to carry out that task, we now look to you for leadership and example in further serving our country in peace."
I "Certificate of Substantially Continous Service in the United States Merchant Marine", datert 21. april 1947:
"This is to certify that Leif Skarpnes has completed a period of substantially continuous service in the United States Merchant Marine, said period of service having commenced on March 28, 1941 and terminated January 2, 1946[.]"