Name	Lifeboat from Titanic	Lifeboat to Carpathia	Confidence Level
Abrahamsson, Mr Abraham August Johannes	15?	15?	2.00

Claes-Goran Wetterholm, in his book Letters from the Titanic says "Abrahamsson climbed down the rope (?) into boat No. 15. In the same boat was John Sundmann."  However, there is not back up doumentation.

A 1970 letter from Eino Lindqvist says Abrahamsson "leaped out for the ropes of a lowered lifeboat and was later rescued" 

We have not yet found a period source for this information, and the specific reference to boat #15 seems to be an assumption instead of something Abrahamsson himself mentioned in an interview.