I thought that War Below Zero, co-written by Colonel Bernt Balchen, Major Corey Ford and Major Oliver La Forge, might have some mention of early landings on the Ice Cap. I’ve just found and checked my copy but it only describes the wartime incidents covered in Wieeso’s interesting link.

Max Conrad, the remarkable solo long range pilot, crash landed an American-registered Picchio on the Ice Cap in the 1960s and was fortunately rescued. I remember listening to him on VHF flying the Amber One Airway over northern England en route to Prestwick or Iceland.