Hello, and welcome to Afrigeneas.
Genealogy, in and of itself, does not establish blood ties; it helps us discover documented relationships, based on the evidence.
When we cannot find documented evidence, we have to look at other methods of proof.
1. Relationship to the COLES
One way to prove relationships is through DNA testing. Of course, you would need to find someone in the family willing to help. This can only confirm blood relationships (or not), based on the parties involved.
2. Pieces of the Puzzle
You have quite a lot of information on the Coles, but not much on the Pages, specifically Mary PAGE. Who were her parents? Did she marry and have other children? Any living relatives?
A copy of Mary Page's death certificate could have the name of at least one parent - an important key to finding Mary with her family group in census records. First, see if you can confirm the year and place of death and burial. Then, send for a copy of her death record.
Georgia Page was born in May, 1919. She was only found in 1930, living with the Coles. Where was she in 1920? Is it possible that she was (still) living with her mother OR with another relative from birth? Was her name changed?
Why the interest in the PAGE side?
Both the COLES and the PAGES have unique perspectives on your family history. The PAGE's view is yet untold. Did they hear of their sister, niece, aunt, cousin, mother (Mary) and would they be willing to share family stories?
3. The Coles
You already have the history of the Coles.
I've found them in census records from 1930 back to 1880 (non-confirmed). Peyton/Peter Coles was probably born between 1860 and 1870.
4. The Daniel(s)
Elvira's maiden name was Daniel(s). Born about 1856, she was found in census records with her husband from 1900 to 1930, and with her mother, Patience, and siblings in 1880. Patience and Peyton married in Charlotte, VA in 1881¹ .
¹ Virginia Marriages, 1785-1940. Name index to marriage records from the state of Virginia. FamilySearch. FHL microfilm. Family History Library Index and Images.