According to the 427 SQUADRON WARTIME LOG - JANUARY 1944 website
W/O2 G. Toal flew on 21 Jan 44 from Leeming to Magdeburg
(See map diagram for 21 Jan 44)Text extract:21/1/44
"Twelve aircraft were detailed for an operation against Magdsnburg, which turned out to be one of the most unfortunate efforts of the Lions in quite some time. Of the twelve aircraft which became air- borne, aircraft "G" piloted by F/S King, returned early because flexible tube to Navigators oxygen mask was missing and could not be found in the aircraft, thereby not permitting him to draw the necessary oxygen. Aircraft "Y" piloted by P/0 T.W. Cooper returned early after the starboard inner engine became unserviceable due to a technical fail- ure. Four aircraft failed to return from the operation including "D" piloted by the "A" Flight Commander, S/L Don H. Amot, DFC, who had only a few days previous been awarded his gong. Flying as second pilot with S/L Arnot was the new Officer Commanding of No 424 Squadron, W/C Martin who had recently returned to England after very intensive and meritorious service in the Middle East. The remaining three crews which failed to return were captained by inexperienced pilots whose operational records range from 2 to 5 trips; they were as follows: F/S R.N. Wier, Sgt G.J.C. Toal, and F/0 J.E. Dickinson. "
(Note the discrepancy in Rank and initials for the name)http://www.427squadron.com/history/wartime_logs/jan_1944.html
