As time has not allowed a thorough study of the documents I've received
(think I posted that somewhere in Germania that I had received some interesting copies on the Finn Saga....)

Ther 3 works are:
"Kenning Finn en it Fedrach fan Finnsboarch"
By J. Richard & J. North (1952)

An article from Hans Kuhn in Studia Frisica (1969)

andFinnsburgh, a Critical approach,
By N.R. Aarhammer (1984)

Reading them will take time, since 1 is in English, 1 in German and 1 in Frisian....

As to Thiu's remark...

Just for arguments sake I posed that perhaps the Frisians played an important role in the development of the Beowulf story....

There's more to say, but my time for today's run out again...

but I'll be back..