Jim Morehead:In my book on this subject the only Americans mentioned were the three USN NC's piloted by Towers, Read, and Bellinger.
Their route was Newfoundland - Azores - Lisbon - Plymouth.
There were supposed to be four of them but one damaged in a hangar fire.
Of the three that set out only Read made it.
Others to try in 1919 were Wood and Wylie who attempted east to west, but ditched before reaching Ireland.
Then came Hawker and McKenzie west to east in a Sopwith biplane.
This was a well thought out attempt, they had an early type of immersion suit, jettisoned the u/c after takeoff to reduce drag, and the rear fuselage upper decking was a boat.
This was just as well because they had engine trouble and survived a ditching in very rough seas and were rescued by a ship.
Next to try in 1919 was Raynham and Morgan but they wiped the u/c off on takeoff in Newfoundland.
Then came Alcock and Brown.
Last aircraft in June 1919 was HP Atlantic with a crew of four piloted by Brackley.
After that was the airship R-34.