Father: Nels Anderson b. 30 Mar 1823 in Horgeneiet, Gran, Hadeland, Norway d. 21 Jan 1906 in Hancock County, Iowa
Mother: Bertha Olsdatter b. 20 Feb 1824 in Hvalebyeiet, Gran, Hadeland, Norway d. 23 Apr 1905 in Kanawha, Hancock, Iowa.

Extract from the 1880 Census:
Name: Bertha Anderson
Age: 12
Estimated birth year: 1868
Birthplace: Norway
Race: white
Sex: female
Relationship to head-of-household: daughter
Parents: Nels and Bertha Anderson. ages 58 and 58
Home in 1880: Amsterdam, Hancock, Iowa
Marital status: single
Father's birthplace: Norway
Mother's birthplace: Norway
Father's occupation: farmer
Occupation: attending school
Siblings living at home: Ole (age 23), Christian (15), and Olena (7)
Census place: Amsterdam, Hancock, Iowa; Roll: 342; Page: 312A; Enumeration District: 112
Date: 3 Jun 1880

Extract from the 1900 Census:
Name: Bertha Bailey
Age at last birthday: 32
Date of birth: Mar 1868
Birthplace: Norway
Race: white
Sex: female
Relationship to head-of-house: wife
Home in 1900: Britt, Hancock, Iowa
Marital status: married
Number of years of marriage: 10
Number of children: 4
Number of children living: 4
Able to read, write and speak English: yes
Father's birthplace: Norway
Mother's birthplace: Norway
Year of immigration: 1873
Number of years in the United States: 27
Naturalization: not listed
Occupation: none
Census place: Britt, Hancock, Iowa; Roll: T623 434; Page: 8A; Enumeration District: 119
Date: 7 Jun 1900

Extract from the 1920 Census:
Name: Bertha M Bailey
Age: 51
Estimated birth year: 1869
Birthplace: Norway
Race: white
Sex: female
Relationship to head of house: head
Home in 1920: Britt, Hancock, Iowa
Address: Locust Street
Marital status: divorced
Able to speak English: yes
Able to read and write: yes
Father's birthplace: Norway
Father's native tongue: Norwegian
Mother's birthplace: Norway
Mother's native tongue: Norwegian
Year of immigration: 1872
Naturalized or alien: naturalized
Home owned or rented: owned; no mortgage
Occupation: laundress
Type of industry: own house
Salary or wage worker: wages
Census place: Britt, Hancock, Iowa; Roll: T625_492; Page: 8A; Enumeration District: 143; Image: 103
Date: 8 Jan 1920

Children:
(1) John Anderson Bailey
(2) Edwin Nelson Bailey
(3) Llewellyn N Bailey
(4) Gladys Beatrice Bailey
(5) Leo Forest Bailey.