1870 Census for Blankenbeker family.

1880 Census for Blankenbeker family.

1900 Census for Blankenbeker family.

1910 Census for Blankenbeker family.

1920 Census for Blankenbeker family.

1930 Census for Blankenbeker family.

Marriage Certificate for Benjamin Blankenbeker and Amanda Roberts. Issued by Sangamon County, IL.

Will.