Bank Holiday August 1990 - Marley Hill loop in use

From a YouTube video of Marley Hill on 27 August 1990:

Cochrane (with its original boiler) running on the loop between
Tommy's 2nd shop & MH station.   Who are the guard & fireman?

MH loop was in use while we ran between Marley Hill station & Sunniside - before we rebuilt Gibraltar Bridge, erected AH station & relaid the line to Causey & the south.    We intend to keep the loop available on the alignment of the P&JR alongside the proposed new stock storage shed, & tidy the area alongside the front of MH (1854) shed.

Irwell's 10" power on MH curve, heading for Sunniside