I learned the most by reading the genre and seeing which publishers like which type of citation. I'm still not sure if there is a difference between historical narrative and creative nonfiction.
The authors I would look at are: David McCullough, David Cecelski, Adam Goodheart. The "blind notation" above looks like APA (psychology) format.
As I stated in an earlier post, the National Endowment of the Humanities requires authors in this genre to follow David McCullough's style. They do not like anything to interrupt the flow of the narrative. Essentially what is done is that there are end notes, as Lynn wrote above, separated by chapter guides in the header and page guides in the footer. Then, the first part of the note is the first phrase of the sentence written in italics, followed by the note.
What I do not like about many books today using this style is that they lack a bibliography, and the full biblio info of the document is abbreviated. I do believe it is important for a genealogist or an historian to present their work in a manner which allows others to replicate their research for verification.