1880 US Federal Census:
Name: Maggie Ackerman
Age: 24
Birth Date: Abt 1856
Birthplace: Iowa
Home in 1880: Keokuk, Lee, Iowa
Street: Concert Street
House Number: 914
Dwelling Number: 103
Race: White
Gender: Female
Relation to Head of House: Wife
Marital Status: Married
Spouse's Name: George Ackerman
Father's Birthplace: Germany
Mother's Birthplace: Germany
Occupation: Keeping House
Household Members:
George Ackerman 27
Maggie Ackerman 24
George L. Ackerman 2
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1900 US Federal Census:
Name: Margratha Ackerman
Age: 43
Birth Date: Sep 1856
Birthplace: Iowa
Home in 1900: Jackson, Lee, Iowa
Ward of City: 3rd
Street: High Street
House Number: 1004
Sheet Number: 9
Institution: 0407
Number of Dwelling in Order of Visitation: 187
Family Number: 214
Race: White
Gender: Female
Relation to Head of House: Head
Marital Status: Widowed
Father's Birthplace: Germany
Mother's Birthplace: Germany
Mother: Number of Living Children: 1
Mother: How Many Children: 1
Can Read: Yes
Can Write: Yes
Can Speak English: Yes
House Owned or Rented: O
Home Free or Mortgaged: F
Farm or House: H
Household Members:
Margratha Ackerman 43
George P Ackerman 32
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1910 US Federal Census:
Name: Margaret G Ackerman
[Margaret G Ockerman]
Age in 1910: 53
Birth Year: abt 1857
Birthplace: Iowa
Home in 1910: Ophir, Butte, California
Street: Veatch Street
Race: White
Gender: Female
Relation to Head of House: Mother
Marital Status: Widowed
Father's Birthplace: Germany
Mother's Birthplace: Germany
Native Tongue: English
Able to Read: Yes
Able to Write: Yes
Number of Children Born: 1
Number of Children Living: 1
Neighbors: View others on page
Household Members:
George L Ackerman 32
Margaret G Ackerman 53
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1920 US Federal Census:
Name: Margaret Ackerman
Age: 63
Birth Year: abt 1857
Birthplace: Iowa
Home in 1920: Oroville, Butte, California
Street: Veach St
House Number: 717
Residence Date: 1920
Race: White
Gender: Female
Relation to Head of House: Head
Marital Status: Widowed
Father's Birthplace: Germany
Mother's Birthplace: Germany
Able to Speak English: Yes
Occupation: None
Home Owned or Rented: Own
Home Free or Mortgaged: Free
Able to Read: Yes
Able to Write: Yes
Neighbors: View others on page
Household Members:
Margaret Ackerman 63
George Ackerman 42
====================
Information on her husband, ACKERMAN, GEORGE, dealer in groceries, wood and produce, corner of Tenth and Concert streets; was born in Fort Madison. Married Miss Margaret Gable, of Franklin, this county, in 1875; have one child- George Lawrence. Mr. A. engaged in his present business in 1871. Himself and wife are members of the Lutheran Church. (Ref: 1879 Lee County History, Biographical Sketches, Keokuk, City)

Ackerman, George L. Ackerman, cooper, residence 1004 High, Also residing here was Margaret Ackerman (widow of George).
(Ref: 1901-2 Keokuk City Directory)