In Imperial Russia, the state and the state church kept two kinds of records particularly important for genealogists: revision lists (revizkie skazki) for tax assessments, and metrical books (metricheskie knigi) of Orthodox ceremonies. Such records are generally held in regional archives. Where are the XVIII and XIX century records from Kamchatka held today?
After reading around ArcheoBiblioBase, I have written a couple of Kamchatka archives directly without yet getting a response (Russian archives often respond very slowly). Joseph Everett, author of a scholarly article on the revision lists, did not know where the Far Eastern lists might be kept. I earlier commissioned a search in Russia that determined that "the church registers for such early time were not preserved in the [Petropavlovsk-Kamchatsky] Archive," but I am not clear whether this means they were lost, or are simply in another archive. I hope that perhaps someone in this community with better Russian language skills than I have will be able to help to resolve this question.