Neville becomes acquainted with Mary the bookseller
Date (happened)
between 1920 and 1929
unresolved
between 1920 and 1929
estimated · probable
Reasoning
Neville says the long acquaintance 'goes back into the 20s.' The natural decade-level reading is 1920-1929, with no finer date stated.
Told / reported
23 September 1966
estimated
Reasoning
Neville recounts the acquaintance in node 1803, whose 9/23/66 opening dateline cleanly establishes the lecture date.