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Clarence Anderson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Harrison-County, Iowa
Our Model Tree links this Clarence Anderson across the 1920, 1930 and 1940 US Censuses in Harrison-County, Iowa (XGBoost, ~Confirmed), with identified parents Eva & Carl — first a son (b.~1918), then head of a 11-person household.
Age 22
b. ~1918
Male
Son
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Harrison-County, Iowa |
| Surname | Anderson |
| Given Name | Clarence |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | St Johns Township |
| 1935 Residence (County) | Harrison |
| Additional Details | |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 48 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Farmer |
| Township / Ward | St Johns 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.
11 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Clarence | Age | Birth yr |
|---|---|---|---|---|
| Irene Anderson | Daughter | — | 24 | ~1916 |
| Grace Anderson | Daughter | — | 14 | ~1926 |
| Helen Anderson | Daughter | — | 8 | ~1932 |
| Carl Anderson | Head | — | 42 | ~1898 |
| Nora Larsen | Other | — | 77 | ~1863 |
| Walter Anderson | Other | — | 52 | ~1888 |
| John Anderson | Other | — | 90 | ~1850 |
| Warren Anderson | Son | — | 19 | ~1921 |
| Clarence Anderson | Son | — | 22 | ~1918 |
| Melvin Anderson | Son | — | 17 | ~1923 |
| Ellen Anderson | Spouse | — | 48 | ~1892 |
Census Appearances
1920
Harrison, Iowa
Son, age 2
Harrison, Iowa · implied b. ~1918 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Anderson |
| Given Name | Clarence R |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Can Read | No |
| Can Write | No |
| Speaks English | No |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Harrison, Iowa
Son, age 13
Harrison, Iowa · implied b. ~1917 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Anderson |
| Given Name | Clarence L |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| 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
Harrison-County, Iowa
Son, age 22
Harrison-County, Iowa · implied b. ~1918 — 11 household members
| Surname | Anderson |
| Given Name | Clarence |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | St Johns Township |
| 1935 Residence (County) | Harrison |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 48 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 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 Clarence Anderson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Eva Anderson (~0.92 confidence) and father Carl Anderson (~0.92 confidence) and father Carl Anderson (~0.92 confidence) and mother Ella Anderson (~0.92 confidence) and mother Ellen Anderson (~0.92 confidence) and mother Ellen Anderson (~0.92 confidence) and father Carl Anderson (~0.92 confidence). The pedigree spans 1 generation with 7 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Eva Anderson
b. ~1855
Source mother
● Household
· direct · ~0.92
Father
Carl Anderson
b. ~1886
Source father
● Household
· direct · ~0.92
Father
Carl Anderson
b. ~1888
Source father
● Household
· direct · ~0.92
Mother
Ella Anderson
b. ~1892
Source mother
● Household
· direct · ~0.92
Mother
Ellen Anderson
b. ~1892
Source mother
● Household
· direct · ~0.92
Mother
Ellen Anderson
b. ~1892
Source mother
● Household
· direct · ~0.92
Father
Carl Anderson
b. ~1898
Source father
● Household
· direct · ~0.92
This person
Anchor record
Clarence Anderson
Son · 1940 · age 22 · b. ~1918 · Iowa
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Sibling
Helen Anderson
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Melvin Anderson
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Grace Anderson
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Warren Anderson
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Irene Anderson
Sibling · 1940 · age 24
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 — Harrison-County, Iowa
Open full size
1940 US Federal Census — Harrison-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01166-00620)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Mary Elaine Bond | 20 | Daughter | — | Iowa |
| 2 | Paul Batos | 48 | Head | Farmer | Hungary |
| 3 | Rosalee Batos | 51 | Wife | — | Hungary |
| 4 | Charles Batos | 23 | Son | Farmer | Iowa |
| 5 | William S. Batos | 21 | Son | Farm Hand | Iowa |
| 6 | Steve Batos | 19 | Son | Farm Hand | Iowa |
| 7 | Catherine Batos | 17 | Daughter | — | Iowa |
| 8 | Agnes Batos | 14 | Daughter | — | Iowa |
| 9 | Gerald Deal | 27 | Son in Law | Salesman | Iowa |
| 10 | Rosalee Deal | 25 | Daughter | — | Illinois |
| 11 | Russell P. Deal | 0 | Grandson | — | Iowa |
| 12 | Glenn Lammert | 24 | Head | Farmer | Missouri |
| 13 | Avis Lammert | 20 | Wife | — | Iowa |
| 14 | Chester Lammert | 5 | Son | — | Iowa |
| 15 | Marilyn Lammert | 3 | Daughter | — | Iowa |
| 16 | Edward Lammert | 67 | Head | Farmer | Missouri |
| 17 | Floneth Lammert | 77 | Wife | — | Missouri |
| 18 | Carl Anderson | 42 | Head | Farmer | Iowa |
| 19 | Ellen Anderson | 48 | Wife | — | Iowa |
| 20 | Walter Anderson | 52 | Brother | Farmer | Iowa |
| 21 | Irene Anderson | 24 | Daughter | — | Iowa |
| 22 | Clarence Anderson THIS PERSON | 22 | Son | Farmer | Iowa |
| 23 | Warren Anderson | 19 | Son | Farm Hand | Iowa |
| 24 | Melvin Anderson | 17 | Son | Farm Hand | Iowa |
| 25 | Grace Anderson | 14 | Daughter | — | Iowa |
| 26 | Helen Anderson | 8 | Daughter | — | Iowa |
| 27 | John A. Anderson | 90 | Father | — | Sweden |
| 28 | Nora Larsen | 77 | Sister | — | Sweden |
| 29 | C. E. O'Rourke | 49 | Head | Farmer | Iowa |
| 30 | Mary O'Rourke | 44 | Wife | — | Iowa |
| 31 | Donald F. O'Rourke | 13 | Son | — | Iowa |
| 32 | Charles J. O'Rourke | 9 | Son | — | Iowa |
| 33 | Patricia D. O'Rourke | 18 | Daughter | — | Iowa |
| 34 | Irene E. O'Rourke | 17 | Daughter | — | Iowa |
| 35 | Rita Marie O'Rourke | 7 | Daughter | — | Iowa |
| 36 | Joan Ann O'Rourke | 4 | Daughter | — | Iowa |
| 37 | John H. Van Cleave | 33 | Head | Farmer | Iowa |
| 38 | Lillie Van Cleave | 34 | Wife | — | Nebraska |
| 39 | Kenneth A. Van Cleave | 7 | Son | — | Iowa |
| 40 | Shirley Van Cleave | 4 | Daughter | — | Iowa |
Pedigree Summary
Clarence + 5 siblings
Gen 1 · 7 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)