Hi Andrew,
Today is one of those Titanic days.....I have access to my files so I can try to answer questions if possible.
Well, there were many survivors who stayed in touch with one another and met on a regular basis. Margaret Devaney O'Neill knew a number of fellow survivors in New Jersey and they would often visit each other over many decades.
From memory, Canadian survivors Madeleine Mellinger Mann and her mother, Elizabeth, attended a survivor reunion dinner in Toronto with stewardess Emma Bliss and chef John Collins in 1939 I believe.
There were many survivor reunions on the sets of the 1953 movie TITANIC and the 1958 film A NIGHT TO REMEMBER. Bill MacQuitty remembered that so many surviving crew members contacted the producers during the production of ANTR that they couldn't keep track of them all. In fact, when the film was shown in Southampton, about two dozen survivors attended and only one of them was female and a passenger - Edith Brown Haisman.
Can you imagine how many tales were shared by surviving Titanic crewmen in the pubs of Southampton and Portsmouth over the course of time? I would have loved to be a fly on the wall during some of those discussions. They probably met casually, without arrangement, and on a fairly regular basis.
I'll try to remember some other functions where survivors gathered separately from Titanic society conventions.
Best,
Mike