Canadian aircraft accidents

[Seaplanes]

I am lookinf for further information of the following Norwegian pilots killed in accidents in Canada:
Three pilots serving With No. 3 Advanced Flying School, Gimli:
Thor Richard Drechsler killed March 29, 1955 about 80 km north-west of old Gimli RCAF Station.
Harald Odd Steen Mathisen killed Aperil 12, 1955 about 19 km north-west of
old Ginli RCAF Station.
Tore Haukeland killed March 2, 1959 at Gimli RCAF Station.

One pilot in civil service: Oscar Albert Lütken killed September 2, 1941 at
London, Ontario. His aircraft was hit by another plane landing in the dark.

I am looking for further details and information about the Aircraft involved.