I'm sure you have this information, but this is copied from http://www.enotes.com/topic/Helen_Loraine_Allison
"The bodies of Hudson and George were recovered by the Mackay-Bennett, a ship dispatched to sea after the sinking for the purpose of locating as many of the dead as possible. The bodies of Bess and Loraine were never recovered.
In 1940, in a scenario very similar to Anna Anderson (who claimed to be the Grand Duchess Anastasia Nikolaevna) a woman named Loraine Kramer claimed to be Loraine Allison, having survived when her parents gave her up in the final moments of the sinking to a passenger in a lifeboat. In a bizarre twist, Kramer stated that on the rescue ship Carpathia, she shared a room with none other than Thomas Andrews, the designer of the Titanic who himself had perished in the sinking. She further stated that the director of the White Star Line, J. Bruce Ismay (who was later severely criticized for serious structural problems on the ship as a means of cost efficiency, ordering Captain E.J. Smith to pick up speed in icy waters, and then entering into a lifeboat when so many others died) and the brother of Hudson Allison together with his wife (both of whom stood to gain financially as the caretakers of baby Trevor) persuaded Andrews to go into hiding along with Loraine by offering him periodic bribery payments as a means to buy his silence. The two resided in the American midwest, though why Kramer chose to wait until she was in her early thirties to issue this revelation was unclear. A further cloak of mystery emerged when Kramer did manage to cite a few facts known only to the Allison family and their household, and this was explained by the allegation that some contact had taken place at some time between Kramer and Alice Cleaver. When interviewed, however, Cleaver assured officials that Loraine most certainly did not survive the disaster, though she never denied having engaged in any conversation with Kramer. When asked of the whereabouts of Thomas Andrews, the man who "raised" her following the deaths of her parents, Kramer responded that his own recent death had inspired her to go public with her story.
The events came to a head when the lawyer representing Kramer died in the midst of the proceedings, and when asked about the earth shattering evidence (such as letters from Ismay) that he had been ready to produce, Kramer said that these papers had been lost just recently in a fire. Again, why they were not produced as soon as she went public with her story remains unclear, but this final episode all but sealed her chances of being taken seriously. She reportedly moved to the west coast of the United States, and was never heard from again. To add to the cloak and dagger scenario, Trevor himself had died from ptomaine poisoning in 1929 at the age of eighteen,so when Kramer released her story eleven years later, it was the brother of Hudson Allison and his own family who had reaped the financial benefits of the estate."