Michigan Historical Commission & Dunbar, W. F. (1967). Michigan historical markers ([Rev. ed.].). Michigan Historical Commission.
Lua i Stíl Chicago (17ú heag.)Michigan Historical Commission agus Willis Frederick Dunbar. Michigan Historical Markers. [Rev. ed.]. Lansing: Michigan Historical Commission, 1967.
Lua MLA (8ú heag.)Michigan Historical Commission agus Willis Frederick Dunbar. Michigan Historical Markers. [Rev. ed.]. Michigan Historical Commission, 1967.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.