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Nels Anderson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Chickasaw-County, Iowa
Our Model Tree links this Nels Anderson across the 1920, 1930 and 1940 US Censuses in Chickasaw-County, Iowa (XGBoost, ~Confirmed), with identified parents Ole & Ole — first a son (b.~1918), then head of a 8-person household.
Age 22
b. ~1918
Male
Son
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Chickasaw-County, Iowa |
| Surname | Anderson |
| Given Name | Nels J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Jackson Township |
| 1935 Residence (County) | Chickasaw |
| Additional Details | |
| Occupation | Farming |
| Industry | Laborer |
| Class of Worker | PW |
| Hours Worked | 60 |
| Income (1939) | 144 |
| Highest Grade | C 2 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Farming |
| Township / Ward | Jackson Township |
| Est. Birth Year | ~1918 |
Household Members
Census records only state relationship to the household head.
Pairwise kinship is derived (~90–95% accurate), not recorded.
Step/blended families and boarders can break it.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Nels | Age | Birth yr |
|---|---|---|---|---|
| John Anderson | Son | — | 18 | ~1922 |
| John Leifson | Other | — | 85 | ~1855 |
| June Anderson | Daughter | — | 4 | ~1936 |
| Ole Anderson | Head | — | 61 | ~1879 |
| Ruth Anderson | Daughter | — | 11 | ~1929 |
| Rachael Anderson | Spouse | — | 57 | ~1883 |
| Nels Anderson | Son | — | 22 | ~1918 |
| Arvin Anderson | Son | — | 12 | ~1928 |
Census Appearances
1920
Chickasaw, Iowa
Son, age 1
Chickasaw, Iowa · implied b. ~1919 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Anderson |
| Given Name | Nils |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Chickasaw, Iowa
Son, age 11
Chickasaw, Iowa · implied b. ~1919 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Anderson |
| Given Name | Nels G. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Chickasaw-County, Iowa
Son, age 22
Chickasaw-County, Iowa · implied b. ~1918 — 8 household members
| Surname | Anderson |
| Given Name | Nels J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Jackson Township |
| 1935 Residence (County) | Chickasaw |
| Occupation | Farming |
| Industry | Laborer |
| Class of Worker | PW |
| Hours Worked | 60 |
| Income (1939) | 144 |
| Highest Grade | C 2 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
Model Tree
An inferred pedigree reconstructed from census links — up to 4 generations within the 1900–1950 window. Closer generations are built from household co-residence; deeper ones are bridged by following a relative to their own childhood census. Confidence compounds and weakens with each generation.
Our Model Tree links Nels Anderson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Ole Anderson (~0.92 confidence) and father Ole Anderson (~0.92 confidence) and mother Rachael Anderson (~0.92 confidence) and mother Rachel Anderson (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Ole Anderson
b. ~1879
Source father
● Household
· direct · ~0.92
Father
Ole Anderson
b. ~1880
Source father
● Household
· direct · ~0.92
Mother
Rachael Anderson
b. ~1883
Source mother
● Household
· direct · ~0.92
Mother
Rachel Anderson
b. ~1889
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Nels Anderson
Son · 1940 · age 22 · b. ~1918 · Iowa
★ You are viewing this record
Sibling
June Anderson
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Anderson
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Arvin Anderson
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ruth Anderson
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Chickasaw-County, Iowa
Open full size
1940 US Federal Census — Chickasaw-County, Iowa
Page Contents
38 people indexed on this census page (nara:1940:m-t0627-01147-00887)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Albert J. Knudson | 75 | Head | Farming | Iowa |
| 42 | Henry H. Knudson | 36 | Son | Farming | Iowa |
| 43 | Stella M. Knudson | 30 | Wife | — | Iowa |
| 44 | Paula H. Knudson | 5 | Daughter | — | Iowa |
| 45 | Lucella M. Knudson | 0 | Daughter | — | Iowa |
| 46 | Clarence M. Maritt | 39 | Head | Farming | Iowa |
| 47 | Josephine C. Maritt | 27 | Wife | — | Iowa |
| 48 | Mary Ann Maritt | 0 | Daughter | — | Iowa |
| 49 | Albert H. Anderson | 50 | Laborer | Farming | Iowa |
| 50 | Lena Robinson | 29 | Boarder | — | Iowa |
| 51 | John J. Marick | 44 | Head | Farming | Iowa |
| 52 | John W. Ralph | 80 | Head | Farming | Wisconsin |
| 53 | John E. Ralph | 41 | Son | Farming | Iowa |
| 54 | Annie L. Ralph | 34 | Daughter | — | Iowa |
| 55 | Joseph H. Ralph | 32 | Son | Farming | Iowa |
| 56 | Mike Kearney | 75 | Head | Farming | Iowa |
| 57 | Edwin F. Underwood | 24 | Hired hand | Farming | Wisconsin |
| 58 | Lula E. Underwood | 39 | Housekeeper | — | Iowa |
| 59 | Merland J. Underwood | 6 | Son | — | Iowa |
| 60 | Eugene P. Underwood | 1 | Son | — | Iowa |
| 61 | Ole N. Anderson | 61 | Head | Farming | Iowa |
| 62 | Rachael L. Anderson | 57 | Wife | — | Iowa |
| 63 | Nels J. Anderson THIS PERSON | 22 | Son | Farming | Iowa |
| 64 | John P. Anderson | 18 | Son | Farming | Iowa |
| 65 | Arvin R. Anderson | 12 | Son | — | Iowa |
| 66 | Ruth D. Anderson | 11 | Daughter | — | Iowa |
| 67 | June H. Anderson | 4 | Daughter | — | Iowa |
| 68 | John Leifson | 85 | Father-in-law | Farming | Iowa |
| 69 | Oscar C. Nystel | 40 | Head | Farming | Iowa |
| 70 | Ida Nystel | 35 | Wife | — | Iowa |
| 71 | Eva M. Nystel | 14 | Daughter | — | Iowa |
| 72 | Lowell N. Nystel | 11 | Son | — | Iowa |
| 73 | Mae Frazer | 50 | Sister-in-law | Housework | Iowa |
| 74 | Joseph Vaala | 24 | Head | Farming | Iowa |
| 75 | Alma Vaala | 56 | Mother | — | Iowa |
| 76 | Leona Vaala | 18 | Sister | — | Iowa |
| 77 | Herman Hager | 34 | Head | Farming | Iowa |
| 78 | Esther M. Hager | 26 | Wife | — | Iowa |
Pedigree Summary
Nels + 4 siblings
Gen 1 · 4 parents
~0.92
Max depth 4 (1900–1950 window)
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1940 United States Federal Census (NARA). Our Model Tree links this person across census decades using XGBoost-based record linkage, with per-link confidence scores. Household corroboration strengthens the signal when co-residents appear on the same census pages in multiple years.
Source: National Archives and Records Administration (NARA)