Caption reads “The original 15 airship pilots and USN enlisted men at Royal Airship Station, Cranwell, England, winter or 1917-18”. Two of those pilots, R. Keily, and C.D. Anderson (2nd row, 4th & 5th from the left) wear Royal Flying Corps pilot wings.
This photo’s caption states that this “British Patrol Dirigible”, the R-31 was flown by Lt. (j.g.) Eugene Wolfe and other American pilots.
Another airship flown by USN naval aviators in WW1 was the French Chalais-Meudon T-2.
Home base for the USN airship pilots in France was Naval Air Station Paimbœuf.