I found F/O R. M. Tegerdine’s name in Walter Neil Dove’s logbook.
Click on the image below.
I also found this on the Internet.
On the 3rd F/O R. M. Tegerdine of the Wolf Squadron caused some excitement when his engine cut over Brussels and he landed on the roof of an apartment house. The aircraft broke in two but Tegerdine escaped with cuts and bruises. The same pilot had to bale out over enemy territory on the 22nd. He was seen to get down safely and roll up his parachute.
F/Lt G. Tegerdine (right) standing in front of his Halifax “Enemy Exterminator”
with his brother, F/O R. Tegerdine of 403 Squadron RCAF.
These brothers hailed from Oakland California.
Photo courtesy of Canadian Forces Photo Unit PL-42162