A place page gathers what is already published about one district, each line quoted from the register named above its section, and each line linking to the full record. It is rebuilt as the registers change, so it is not a snapshot with a date on it.
What is not on this page
A record with no postcode cannot appear on a place page, because there is nothing to place it by. That is a real gap and it is not hidden: the register holds no postcode for every charity record, and the food and care feeds each leave some out. The record still exists and is still searchable by name; it simply has no district.
And an empty section above means nothing is held there, not that nothing exists there.