Record Usage and Interpretation

Dear EE:

I can't find my great grandfather, Davey Stirman Smith, in the 1940 census. I thought his WWII Draft Registration Card could help me find him, but I'm left with more questions than answers. Why are there so many different locations on his draft card:

I am struggling with identifying the original source for Pennsylvania land warrant loose papers that are available on FamilySearch, microfilmed in Harrisburg, PA, in 1975. https://www.familysearch.org/search/catalog/99197

Dear EE,

I have quite a number of inherited family certificates including the attached marriage certificate of my grandparents. I would love some feedback on my attempt below. 

Source List Entry

Grant Family Papers. Privately held by Renee Michelle McLean, New South Wales, Australia.

First Reference Note

I've come across an amendment situation that I've never seen before in the Canadian Census records and I'm not quite sure how to treat it.

The page image shows an enumeration district of 1, but the page is stamped to indicate the enumeration district was 45. The initial page of the book has an image-time-note showing the subdistrict (not the enumeration district) was 45 and it has been catalogued by the Library and Archives Canada as subdistrict 45. If one uses what is on the image, one cannot locate the record.

Dear Collective Wisdom: I was researching a probate record from 1870 in Harrison County, Texas and came across the following description of a horse in the inventory: "Davy Crockett horse." It was valued at $25. A quick perusal of the internet gave me only toy horse figurines and other Davy Crockett ephemera. Has anyone here come across this description? Or, does anyone know of a good reference for horses or know of a horse scholar? Thank you in advance for any assistance!

Dear editor;

Dear Editor;

Dear Editor;

Pages pp. 105–114 of Evidence Explained, 3rd. ed. revised, hold QuickCheck Sheets for Private Holdings. Various components are placed first in the Source List Entries. Is the style of Source List Entry, on a given sheet, the recommended one or are they more for illustration of the different possibilities? For one's own archives, could one always use a Collection-first format, so that it is always clear to the reader that the material resides in the stated person archives/files?