1850 Census
Ferguson     John            25  Ire.    MI      Mackinac; no twp listed
Fergason     John            23  Cana.   MI      Mackinac; no twp listed
1900 Census
Ferguson        Mathew           34  Male    Cana    MI      Mackinac 2-Wd St Ignace
Ferguson        Wagner           24  Male    Wv      MI      Mackinac Hendricks Twp
Furgerson       Edward           30  Male    Mi      MI      Mackinac Holmes Twp
Ferguson        Fred E           27  Male    Mi      MI      Mackinac Newton Twp
1910 Census
Ferguson        John             29  Male    Mi      MI      Mackinac Brevort Twp
Furgeson        Annie            51  Female  Mi      MI      Mackinac Mackinac Island
1920 Census
Ferguson        Edward           49  Male    Mi      MI      Mackinac Mackinac Island