John Smith's pic is of the spent nuclear flask working, Sellafield - Crewe, headed by four locomotives, 'glinting' in the low sunshine. They are 66411 Eddie the Engine, 66414 James the Engine, 37682 and 37601. The pic is dated 22nd June 2010 and was taken at Winwick.
Alan Rigby's shot was also taken at Winwick but much earlier - 12th May 2006. In November 2004 FirstGBRf acquired two class 87 locomotives (ex Virgin Trains) for use as standby locomotives to rescue failed Royal Mail class 325 emus run by FirstGBRf. Two more were brought in later but only two were retained. No 87022 Cock O' The North was one of them. In Alan's pic the loco is doing exactly as described. She was withdrawn at the end of 2007 and eventually sold to Bulgarian Railways as 87022-0 (see the post for 26th May for details of the Bulgarian class 87s).
Jeff Nicholl's pic is another of 'Standard' class 8 'Pacific' 71000, Duke of Gloucester, but differs from the others recently used on the blog in that it shows the locomotive in close up. The railtour was 'The Dalesman' and it ran on 3rd September 2005. Jeff photographed the train at Bank Quay Station.