There's some great stuff here about the train movements out of and in to Marylebone. Many thanks and keep 'em coming!
Firstly Dave H and Martin's comments. I suspect that it's possibly a newspaper train but it's late in the day for one running in to Marylebone, and if the train is going North overnight it has the brake van on the wrong end. What about an up parcels train? And despite your thoughts about the Manchester newspaper train it's still the wrong way round! However, (flash of inspiration) it would have come up to Marylebone (let's not get in to that one) from Manchester brake an on the rear, so to go back to Manchester would have needed the whole train turning. At this distance in time I can't remember whether there was a triangle at Neasden, but if there was.... Roger - thanks for your additional bit of info about the newspaper train. And I suspect, Dave, it would have gone via Aylesbury, but then again.....
Then Yorkie Dave. That's really food and drink stuff. My comment about the short train was based on many hours in my late childhood watching trains at Northwick Park and I never remember a train either too or from Aylesbury of only a couple of coaches. That doesn't mean there were none, of course, so your surmise might be right. Stuff certainly gets a bit complicated when you factor in the routes available to ex-Marylebone trains at Neasden. In the times I remember, when Met line trains were still going through to Aylesbury, they'd leave Baker Street behind an electric loco non-stop to Harrow (on the Hill). Although I travelled on them quite a few times I can't remember the stopping pattern after Harrow, but once at Rickmansworth for the engine change they were (generally) "all stations" to Aylesbury. I think it's a fundamental question as to why the BR services needed to be at all intensive when there was a regular Met service. (Incidentally, although the motive power from Rickmansworth was usually Fairburn 2-6-4 tanks after the L1s had gone it was not unknown for one of the Met steamers to be pressed in to service, or even on at least one occasion, a Jubilee).
Mick D. Thanks for reducing the potential list of A3s to, erm, one!
Tony. Again I don't remember a shuttle to any of the Harrow stations but it's entirely possible there was one. If it went to South Harrow I'd not have seen it at Northwick Park but South Harrow seems a rather odd destination and I only ever remember seeing LT stock there. I guess push-pull could have worked but I don't remember any run round facilities at South Harrow. I guess we have to say that Yorkie Dave probably has the answer and it may not have been Harrow at all. I think you need to locate that book right now, Tony!
Finally, at least for now, Dave H, the manipulation of facts to suit the required result was not unique. Look at the S & D and the Settle & Carlisle to name but two. Make it three with the GCR.
King 6003 King George IV on the up Red Dragon at Old Oak Common on 1st August 1961. This loco had been on Old Oak Common's allocation since at least 1947 and was withdrawn in August 1962 being scrapped at Swindon Works in September. (BR Database).
43XX 2-6-0 6385 on a down parcels train at Old Oak on 1st August 1961. It had been a Reading engine since November 1959. It went in to store in August 1963 and then to Didcot in November before withdrawal almost immediately at the end of the same month. (SLS). It was scrapped at Kings, Norwich, in June 1964.
Schools Class 30925 Cheltenham on an up train from Lymington Pier at Wimbledon on 29th July 1961. It was allocated to Stewarts Lane in February 1961 and Basingstoke in August the same year. SLS) Thereafter it all gets a bit woolly but there's agreement that withdrawal was in December 1962 and Rail UK says that was from Basingstoke. The history of the loco in preservation is well recorded elsewhere.
Standard 5 73085 Melisande on an up express at Wimbledon on 29th July 1961. It was allocated to Nine Elms and had been since June 1959. It went to Feltham in October 1965 and Easteigh a month later, then Nine Elms again in June 1966 where it was withdrawn at the end of Southern steam in July 1967. It was scrapped at Cashmore's, Newport, in April 1968.
Brian