[David_Hayward (RIP)]

Yes, the snow-blower must be a FWDHAR-01 with the Climax R6 engine powering the Bros rotary plough. Thanks for that one!

The tippers are I suggest are L4688588 to L4688612 Mack "Lorry 10 ton 4 x 2 Tipping" to S/M 2813...but which model Mack?

There is also a GMC 6 x 4 FC truck in the background...I wondered whether this was a rebuild to flat-bed on the obsolete AFWX-354 searchlight chassis abd then demobbed in 1944? The GMC tractors are 1940 units but I have no thoughts about them other than they must be lhd civilian, NC.