Hi Seaplanes
Not sure if you have Marinens Flygevåpen 1912-1944 by Hafsten/Arheim (one of the most detailed books I ever come across!!)
On page 157 they say that the crew of the F.50 evacuated to Finland was crewed by, besides Dahl as you say, also Ltn Knut Skavhaugen.
This book is so full of details, that it actually can be difficult to see the trees because of the forest, but both Dahl and Skavhaugen were pilots.
Skavhaugen would later loose his life in Mosquito HR141 25.3.1945 with 333 Sq, so close of making it to the end....
All the Best
Stig