- [Dictionary of Canadian Biography](http://www.biographi.ca/en/bio/johnston_john_6E.html)
- [The Canadian Encyclopedia](https://www.thecanadianencyclopedia.ca/en/article/john-johnston)
- [Ontario Heritage Trust](https://www.heritagetrust.on.ca/en/directory-of-heritage-properties/johnston,-john,-site)
- [Wikipedia](https://en.wikipedia.org/wiki/John_Johnston_(Upper_Canada))
Books
- *The Life of John Johnston* by William Kirby (1892)
- *John Johnston and the Six Nations* by James Taylor (1928)
- *John Johnston and the Mississaga Mission* by Donald A. Smith (1966)
- *John Johnston: Mohawk Aristocrat* by Douglas Leighton (1984)
Articles
- "John Johnston: A Forgotten Father of Confederation" by Donald B. Smith (1967)
- "The Life and Times of John Johnston" by William L. Stone (1889)
- "John Johnston and the Indian Department" by William N. Fenton (1951)
- "The Honourable John Johnston: A Mohawk Chief in Upper Canada" by Alan H. Gordon (1978)