The official US arrival manifest from the SS Excalibur, sailed from Lisbon to New York, listing Constantine as a passenger arriving August 25, 1941. The manifest records his age, profession, nationality, last permanent residence, sponsor/destination contact in the United States, and physical description — all of which serve as primary-source anchors for the wartime crossing.
He stepped off the boat into a position at Flower-Fifth Avenue Hospital at 105th Street and 5th Avenue, Manhattan. Sophie followed him on the SS Serpa Pinto ten months later.