An uncomplete list:
http://www.warcovers.dk/greenland/crash_list.htm
These crashes are in Greenland, not around it
The book "Ocean bridge: the history of R.A.F. Ferry Command" covers the losses of RAF aircraft crossing the Atlantic with 45 Group.
If you're interested in US losses, you can find some of the missing US aircraft by using
http://www.aviationarchaeology.com/src/dbMACR.htm and typing FrG (ie Ferry Group) in the Group. It will list 82 MACR all over the world, but a good part are about the trans-Atlantic roads (both northen and southern).
You can find some more losses in the accident lists in the same website:
http://www.aviationarchaeology.com/src/dbaf.htm, here you can type the country code (ATL for Atlantic Ocean, GRN for Greenland, ICE for Iceland and so on).