CO
Carl Olson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Harlan-County, Nebraska
Our Model Tree links this Carl Olson across the 1920, 1930 and 1940 US Censuses in Harlan-County, Nebraska (XGBoost, ~Confirmed), with identified parents William & Selma — first a head (b.~1904), then head of a 6-person household.
Age 36
b. ~1904
Male
Head
Born: Nebraska
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Harlan-County, Nebraska |
| Surname | Olson |
| Given Name | Carl E. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | Nebraska |
| 1935 Residence (City) | Scandinavia |
| Additional Details | |
| Occupation | 60 |
| Industry | Farmer |
| Class of Worker | Farm |
| Highest Grade | No 8 |
| Birth State | Nebraska |
| Birth Country | United States |
| Birthplace (normalized) | nebraska |
| Occupation | 60 |
| Township / Ward | Scandinavia |
| Est. Birth Year | ~1904 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Carl | Age | Birth yr |
|---|---|---|---|---|
| Kenneth Olson | Son | — | 9 | ~1931 |
| Carl Olson | Head | — | 36 | ~1904 |
| Lois Olson | Daughter | — | 7 | ~1933 |
| Loretta Olson | Daughter | — | 6 | ~1934 |
| Millie Olson | Spouse | — | 30 | ~1910 |
| Lucille Olson | Daughter | — | 3 | ~1937 |
Census Appearances
1920
Harlan, Nebraska
Son, age 18
Harlan, Nebraska · implied b. ~1902 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Olson |
| Given Name | Carl |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Nebraska |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Nebraska |
| Birth Country | United States |
| Birthplace (normalized) | nebraska |
1930
Harlan, Nebraska
Son, age 27
Harlan, Nebraska · implied b. ~1903 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Olson |
| Given Name | Carl |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Nebraska |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Farmer |
| Industry | General Farm |
| Class of Worker | E |
| Can Read/Write | Yes |
| Birth State | Nebraska |
| Birth Country | United States |
| Birthplace (normalized) | nebraska |
1940
Harlan-County, Nebraska
Head, age 36
Harlan-County, Nebraska · implied b. ~1904 — 6 household members
| Surname | Olson |
| Given Name | Carl E. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | Nebraska |
| 1935 Residence (City) | Scandinavia |
| Occupation | 60 |
| Industry | Farmer |
| Class of Worker | Farm |
| Highest Grade | No 8 |
| Birth State | Nebraska |
| Birth Country | United States |
| Birthplace (normalized) | nebraska |
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 Carl Olson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father William Olson (~0.92 confidence) and mother Selma Olson (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
William Olson
b. ~1859
Source father
● Household
· direct · ~0.92
Mother
Selma Olson
b. ~1865
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Carl Olson
Head · 1940 · age 36 · b. ~1904 · Nebraska
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Harlan-County, Nebraska
Open full size
1940 US Federal Census — Harlan-County, Nebraska
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02249-00524)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Verla C. Lush | 15 | Son | 5 | Nebraska |
| 42 | Carl E. Olson THIS PERSON | 36 | Head | 60 | Nebraska |
| 43 | Millie B. Olson | 30 | Wife | — | Nebraska |
| 44 | Kenneth H. Olson | 9 | Son | — | Nebraska |
| 45 | Lois E. Olson | 7 | Daughter | — | Nebraska |
| 46 | Loretta J. Olson | 6 | Daughter | — | Nebraska |
| 47 | Lucille B. Olson | 3 | Daughter | — | Nebraska |
| 48 | Marvin O. Ibsen | 25 | Head | 60 | Nebraska |
| 49 | Louise P. Ibsen | 21 | Wife | Teacher | Nebraska |
| 50 | Isaac H. Olson | 81 | Head | — | Sweden |
| 51 | Selma Olson | 75 | Wife | — | Sweden |
| 52 | Gust E. Johnson | 37 | Head | 60 | Nebraska |
| 53 | Dorothy V. Johnson | 32 | Wife | — | Nebraska |
| 54 | Carl O. Zimmerman | 52 | Head | 60 | Nebraska |
| 55 | Mera K. Zimmerman | 29 | Wife | — | Nebraska |
| 56 | Maxine M. Zimmerman | 7 | Daughter | — | Nebraska |
| 57 | Louis O. Anderson | 56 | Head | 60 | Michigan |
| 58 | Mamie A. Anderson | 50 | Wife | — | Sweden |
| 59 | Lloyd A. Anderson | 23 | Son | 60 | Nebraska |
| 60 | William W. Bryan | 46 | Head | 60 | Illinois |
| 61 | Ruth Bryan | 46 | Wife | — | Nebraska |
| 62 | Ward G. Bryan | 21 | Son | 60 | Nebraska |
| 63 | Clara L. Bryan | 18 | Daughter | 30 | Nebraska |
| 64 | Thelma M. Bryan | 15 | Daughter | — | Nebraska |
| 65 | Wilma R. Bryan | 13 | Daughter | — | Nebraska |
| 66 | Chester C. Bryan | 10 | Son | — | Nebraska |
| 67 | Donna J. Bryan | 2 | Daughter | — | Nebraska |
| 68 | Arthur W. Ashley | 68 | Head | 60 | Iowa |
| 69 | Emma M. Ashley | 63 | Wife | — | Iowa |
| 70 | Lyle A. Ashley | 21 | Son | 60 | Nebraska |
| 71 | Vernon C. Nelson | 23 | Head | 60 | Nebraska |
| 72 | Dorothy J. Nelson | 20 | Wife | — | Nebraska |
| 73 | Johnny Nelson | 2 | Son | — | Nebraska |
| 74 | Albin M. Hollertz | 48 | Head | 60 | Nebraska |
| 75 | Blanche C. Hollertz | 43 | Wife | — | Nebraska |
| 76 | Gloria G. Hollertz | 15 | Daughter | — | Nebraska |
| 77 | Leone V. Hollertz | 12 | Daughter | — | Nebraska |
| 78 | Rose Ann E. Hollertz | 10 | Daughter | — | Nebraska |
| 79 | Lamonte A. Hollertz | 7 | Son | — | Nebraska |
| 80 | Rasmus Johnson | 64 | Head | 60 | Denmark |
Pedigree Summary
Carl
Gen 1 · 2 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)