Post 105 on this thread - I've just found this post and am flattered that you find my schoolboy photo of D1971 at Hawick so interesting. It was taken in the second half of August 1966 when I was 14 and visiting my fathers relatives who lived in Waverley Terrace in Hawick. We always enjoyed staying with them as it commanded excellent views of the line south of Hawick Station.
To the best of my knowledge, there was no activity at 64G which had been closed a few months previously. I do, however, vividly remember the (by then) rare appearance of a couple of steam hauled trains. One northbound freight was headed by 44911 which stopped for water at Hawick. The other was 70013 southbound to Carlisle which didn't stop at Hawick.
ATB