First, I would start by cleaning up the long profile of David Morris. If the works (the book) was published, you should only reference the book and show relevant excerpts, not the entire contents (which would get into copyright infringement).
If the works (book) is a personal collection item that was not officially published and is maintained by family members, then you should create a free-space page for the data, then link to it as needed.
Next, as far as referencing the works, it will depend on the content itself. It is quite long, but I noticed that most of the content appears to be personal recollections, which means the information is a personal knowledge source that can help "put flesh on the bones" of plain profiles by adding interesting content, such as descriptions of property, people, events, etc.; but cannot be considered a primary source that "proves" anything - it just gives you something to go on for further research.
So to cite something of that nature, you would basically need to list it as such, (e.g. Personal Recollections of David Morris. Book Name (or Written Transcript); life story, including family, residence, education, and work life experiences.. Date (if known). Owned (or maintained by) PersonName.)
Sourcing information can be hard for many people, but I like to go by the following guidelines (with examples):
- Primary Sources are any document, artifact, recording, or other information that is created at the time of the event in question (e.g. Birth, Marriage or Death records),
- Secondary sources are any document, artifact, etc. that builds upon or discussed information that was originally presented elsewhere (e.g. a book written on a subject using primary sources as the basis for the information).
- Personal Knowledge is any document, artifact, etc. that is created based on what a person was told or what they remember (e.g. a transcript by a person at the age of 90 who is recounting his years as a youth and what he was told about other family.)