1 July 1956
stated · probable · preferred
Why
Not overwriting the existing certain 1956-02-17 catalogue claim; recording this as a competing, better-evidenced date for adjudication.
Reasoning
The existing certain claim (1956-02-17, a Friday, this corpus's usual evening-lecture night) is contradicted by the lecture's own repeated internal dateline and by its 'this morning's subject' framing, which matches a Sunday service - 1 July 1956 was a Sunday, 17 February 1956 was not. The lecture's own processing pass already downgraded the catalogue claim to doubtful for this reason; taking the better-supported, non-preferred date rather than the catalogue value at face value.