Citation Issues

Does anybody out there know how to properly cite sources from Arkivdigital, Riksarkivet, and familysearch when you are looking at digital images of Swedish Church records or at images of military records online?  I cannot find any book or website that explains the proper way to do it.

The book is Trinity Lutheran Church Records, Lancaster, Pennsylvania, vol. 3, 1782-1796, translated and edited by Debra D. Smith and Frederick S. Weiser.  Do I begin with Debra D. Smith and Frederick S. Weiser, translators and editors since there is no author noted?

Typically I would handle citing an Ancestry message much like an email or instant message. However, Ancestry recently made some updates to their messaging system and there is no longer a way to create or view subject lines. I am thinking that in order to cite it correctly I would need to make one up. If that's the case, am I correct in thinking that the subject line should now be placed in brackets?

ie:

How does one cite a newspaper from Findmypast, when the paper itself is the "Jackson's Oxford Journal" but Findmypast uses "Oxford Journal" as their terminology for this publication.

If one references their citation to "Jackson's Oxford Journal" with the usual caveats for newspapers published online by another provider, i.e. (EE 14.22 Newspaper Articles (Online Images) - I am fairly sure that others would not find that newspaper name at the website being cited.

Have attached 2 images for thoughts.

Am interested in others views.

How would one cite a book, that is not really a book, but is the full text of a book - that has been digitised and made available online. I am revisiting and revising some of my earlier citations.

I am referring to content on the British History Online (BHO) website, specifically for: https://www.british-history.ac.uk/vch/oxon/vol17/175-208

They do offer this for citation (Chicago):

Good evening,

I’m a quandary as to how to incorporate new information that I found into existing citations and would appreciate input. This could well be a case of me not seeing the forest for the trees so please bear with me. I apologize for the length of the post!

Danish authorities used to send letters back and forth between them, each authority adding a letter or note to the same piece of paper, and thus creating a record with multiple letters on it. In some ways this kind of correspondence resembles today's group chats at Messenger. The piece of paper is one record, but it has multiple letters/notes on it and three authorities were involved.

Other elements to consider are:

I appreciate that EvidenceExplained (EE) is much more than a bunch of recipe citations, but my question is about the conventions used in its citation style.

I like the way that EE treats online publications on an equal footing with traditional publications; it's much more logical than the Chicago manual of style conventions.

I've been working with Ancestry.com (online) and Family Tree Maker 2019 on my Mac for a number of years, and have been baffled by how to name (that is, identify) and cite my photographs, obituaries, scans, screen captures, as well as online census and newspapers in Ancestry and other online image databases.

I'm working with county-level voter registration records in California, 1866-1872. Before an election, the County Clerk had at least 10 copies of the County's "Great Register" printed. These were distributed to the County's election officials. The early versions of these printed copies were booklets with a title cover without publication information. Later they were submitted as print jobs to local printers, who added their names, publication dates, and places. Sometimes the cover will carry the statement, "Published by Authority."