Lester, once again, I do research on Titanic since 1998 and I've heard so many stories and so many myths! I made some short useless short stories about Titanic and I passed my days in web pages, searching information as accurate as I could. However, I was seven or eight years old at that time and I believed in everything I read about Titanic, not concerning accurance of it.
I used to thought it was just an obsession for a short time but quickly it became a "Titanic illness"! I didn't note down the sites I found because I thought I wouldn't need them in the future and I'm very regretful about that. But, just to clarify your mind, I've a personal opinion about that: I read that the second class passengers boarded boat 4 at 1.30 but it would be ridiculous, in that case the first class wealthy families would get on at once; although, this passengers could be on the Boat Deck, but someone of the crew would alert them immediately.
I'm not inventating, I just write things I've heard and I forget to inform you. I do apologize if my doubtful resources disappoint you, but I'm doing an effort to put the adresses of Titanic's sites on ET not to forget it later.
Best regards and great summer, João