Citation Issues

I'm looking at the examples of US pension records examples from EE4 12.35 (which is the same as EE3 11.40). The first layer relates to the record in question, which I understand. The second layer in the first three examples is "Case Files of Approved Pension Applications..., 1861-1934", which is the series. My confusion comes with the third layer - "Civil War and Later Pension Files". The fourth later is fine, "Record Group 15: Records of the Department of Veterans Affairs" which is the Record Group and its description, and the final layer is the repository.

I am working through U.S. agricultural schedules available on Ancestry. I am using Ancestry Library Edition, though, so my links will reflect that.

I have a database: “U.S., Selected Federal Census Non-Population Schedules, 1850-1880," but I'm not sure whether I really need to use it in my citation, and if so, how? Lead with the database?

I think the subject is explanation enough.  But I do have more specific questions.  

I'm going to venture a guess that including the post office is optional.  But, if it is included (such as in the rare case where more than one post office might be within a particular district or township), should it be: 

Post Office: Lynnville Station, or

Lynnville Station Post Office, or

Lynnville Station post office. You get the idea.

On page 305 (section 6.51) of Evidence Explained, 3rd. edition revised, the First reference example for a Welsh census from FindMyPast is: 

First Reference Note  

1. 1901 census of Wales, Monmouthshire, Bedwelty, p. 5 (stamped),  Moses Frame; image, “Census, Land & Substitutes,” DC Thompson,  Findmypast (http://www.findmypast.com: accessed 1 April 2015);  citing [The National Archives] “Series RG13, piece 4943, folio 5, p. 1.”

I have a couple of questions regarding gravestone images and memorial pages.

I’m curious why we’re now citing cemetery information in a separate layer. Previously, it followed the date in the first layer. Since Find A Grave doesn’t specify the source of its information, I’m unclear on why we would use the word “citing.”

I have been looking at EE4 12.28 and Template 5, and I'm not sure if I'm including too much (e.g., serial number and thereafter) or not enough. Also, would I need to include the date of registration?

I used template 10 from EE 4th ed, but I'm wanting to make certain this citation is correct. Admittedly, I used FamilySearch's catalog title (Card index to delayed births, 1869-1972), so I'm wanting to know whether I need to adjust that part of the citation.

I'll begin by saying I might be obsessing unnecessarily with this, but I would like to include both database and image information in one citation for many of my source citations that are found in "database with images" records at both Ancestry and FamilySearch.  I understand that I could just cite one or the other, but it's just my personal preference, if it can be done in an acceptable form that would allow others to find both records.

Hello, I am not sure how to cite the new LAC site for the 1931 census, eg

https://recherche-collection-search.bac-lac.gc.ca/eng/Home/Record?app=census&IdNumber=81310547&ecopy=e011672090

My attempt using 7.47:

I'm working with membership records from The Church of Jesus Christ of Latter-day Saints. The records can be accessed digitally through the Church History Catalog found on the Church of Jesus Christ website. The records can also be accessed onsite at the Church History Library in Salt Lake City.

Landing page for the Church History Catalog: https://catalog.churchofjesuschrist.org/?lang=eng 

I'm struggling with the middle layer of the citation.

Layer one: