This photo, again from the 1928-1929 album of WR Fell, shows five of the crew of HM Submarine L3 relaxing at Repulse Bay. Unfortunately only four are named. I've found a Sub Lt Thyne on HMS Titania's sick list in 1921. Lt Lloyd is commemorated on p. 3 of the journal Light Airs where at Chefoo “It is understood that the local police requested to be informed whenever Lt. Lloyd went ashore.” Perhaps he is here recovering from a night out. Phillips is mentioned in Light Airs as Dr Phillips.