In addition to 33021.
20057 (D8057 delivered in May 1961 to Sheffield Darnall, withdrawn 1994) has had a nomadic retirement, where I have previously seen it at Long Marston and Butterley, and it was at Barrow Hill as well. The engine is currently removed for overhaul and repair, in the adjacent shed, but it it appears that this will be a challenging restoration.
Former Eastleigh allocated 33102. I recall this working with the "Swedish Scrubber" at Salisbury in the early 1990s, for which it was dedicated locomotive, with smoke emerging from the bogies / underframe which did not look encouraging. I don't recall a train consist like that once seen at Grateley. Withdrawn 6th November 1992, and now preserved at the Churnet Valley Railway for 25 years. When seen it was poorly, but was revived by the middle of the day.
6 Roger H Bennett is a Yorkshire Engine 'Janus' (works no. 2748 of 1959), which arrived at the Churnet Valley in 2008.
D3800 (BR Derby, December 1959) is the former 08633. Latterly it was shunter at Axiom Rail in Stoke. The vacuum brake has been reinstated in preservation.