Citation Issues

I am using the following digitized book from Google Books.

I have two questions:

1) Do I need to cite Google Books' source, in this case the Harvard College Library, Charles Elliott Perkins Memorial Collection? I suspect not. But Google Books does specify the date of digitization.

I need to cite a death certificate found in the new Ancestry.com database for Indiana death certificates. Of course, Ancestry's source information isn't super helpful, but from what is in its source area for the database and my own analysis of the record and images themselves, I have determined the following:

I have an 1860 census page with two penned numbers.  One is written on a line on the left hand side after the words Page No.

Page No. ________

The other is on the right hand side.

Is the one on the left the enumerator's number and the one on the right the Census Bureau's number?

I can't attach the image because it is larger than 1 MB.  Maybe this link will work.

https://familysearch.org/ark:/61903/3:1:33SQ-GBSD-9FGX?i=42&wc=QZ2C-Y5V%3A1589429312%2C1589424992%2C1589423918%3Fcc%3D1473181&cc=1473181

I am trying to determine how to cite correspondence that I received from a person through 23andMe's private messaging system. The messages also come to my email address, and since our initial messages, I know the person's private email and name, but the two emails I will be citing were from when we were still writing through 23andMe.

I had such a nice message all written up a few days ago, but it was one that got lost in the server failure (I'm sure that was much more frustrating to you than to me - and I wondered why I was getting no answer).

A recent hardware failure at the Cloud provider for this website (Amazon) wiped out the site's content and its backup. From a secondary backup made elsewhere in mid-July we have been able to rebuild the site. For those of you who contributed valuable questions and commentaries between 15 July and 5 August, we apologize for the loss of the content.

Your editor, citation geek, and relentless advocate for careful evidence analysis.

How would I cite a Red Book article from the edition published by Ancestry online? Here is a link to the Red Book online page:

https://www.ancestry.com/wiki/index.php?title=Red_Book:_American_State,_County,_and_Town_Sources#Red_Book_Online

I have a citation for an image from Ancestry taken from a series of books.  Here's my attempt at a citation:

“Connecticut Town Birth Records, pre-1870 (Barbour Collection),” database and images, Ancestry (http://www.ancestry.com : viewed 11 July 2016); imaging Lorraine Cook White, editor, The Barbour Collection of Connecticut Town Vital Records, 55 vols. (Baltimore: Genealogical Publishing Co., 1994-2002), [volume not given] : 216, entry for Celia Hills [Hill], b. 25 January 1816, Burlington.

I've been working on a citation to a certified photocopy of a delayed birth certificate which I hold in my files.  Using the QuickCheck Model on EE page 430 and multiple examples of layered citations I came up with the following:

Alabama, State Board of Health, Delayed Certificate of Birth (CERT. DATE), ID OF PERSON, Bureau of Vital Statistics,  Montgomery; certified copy, Alabama State Registrar of Vital Statistics; privately held by MY NAME [address for private use] CITY, Alabama, 2016

Dear EE,

My question(s) are really not new. However, I need some clarification, for myself. I am on the final (hopefully) edit of a descedancy lineage. Sigh! I began from the beginning this morning and lo and behold I am sooo confused, again, about citations with layers, especially digital images within databases at Ancestry and source of source issues. I wrote these citations months ago. Now I am second guessing what I have done.

So just a quick question about the QuickCheck on page 661.   The source list entry uses the new format of "Image copy" and the first full ref note uses the new format "digital images", but all of the other information is the same.

Why would you cite them as different formats? Or was that more just saying that you could use either?