Neville recalls a stay of four or five months in Barbados with his wife and young daughter, roughly 15 to 20 years before this telling. There he met a British Army major (Major Morrison), stationed in Trinidad, who was enthused by Neville's ideas about the Law of God and introduced them to a retired chemistry professor -- an avowed agnostic/atheist who insisted everything in his life had to be proven.
Date (happened)
between 1951 and 1956
unresolved
between 1951 and 1956
estimated · possible · preferred
Reasoning
Neville gives a spoken range, 'about 15 or 20 years ago', reckoned from the certain 1971-04-09 delivery date: 1971 minus 20 to 1971 minus 15 gives 1951-1956. Keeping this as a between range rather than picking a single year, since he himself gave two figures.
Told / reported
9 April 1971
conclusion
Why
dc1-agreement-20261004, pm-actor-551 (PM 8702)
Reasoning
1 claim, no conflict: 1971-04-09 (node:1962).
9 April 1971
estimated
Why
Both delivery claims agree (1971-04-09, certain); no tiebreak needed.
Reasoning
This life event is witnessed by passage 550184 in nid 1962. The lecture's two delivery claims agree exactly at certain confidence -- a legacy catalog claim and an independent chrome-byline claim corroborate each other with no conflict to resolve -- so the told date inherits certain.