As was initially speculated, I recall. However I also recall some mention that the contents of the bag did not match the items on Beckwith's claim against WS. Thus entered another theory that the bag was used by a thief who went around looting cabins. That all sounds a bit much to be, but who knows - Titanic's story is full of weird twists.RLB could also stand for First-class passenger Richard L. Beckwith.