EN
Earl Nelson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Cass-County, North Dakota
Our Model Tree links this Earl Nelson across the 1920, 1930 and 1940 US Censuses in Cass-County, North Dakota (XGBoost, ~Confirmed), with identified parents O & Otto — first a son (b.~1914), then head of a 3-person household.
Age 26
b. ~1914
Male
Son
Born: North Dakota
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cass-County, North Dakota |
| Surname | Nelson |
| Given Name | Earl |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | North Dakota |
| 1935 Residence (City) | Fargo City |
| 1935 Residence (County) | Cass |
| Additional Details | |
| Occupation | Electrician |
| Industry | Electric Shop |
| Class of Worker | PW |
| Hours Worked | 30 |
| Income (1939) | 31 |
| Highest Grade | C 3 |
| 1935 Residence | Same place |
| Birth State | North Dakota |
| Birth Country | United States |
| Birthplace (normalized) | north dakota |
| Occupation | Electrician |
| Township / Ward | Fargo City |
| Est. Birth Year | ~1914 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Earl | Age | Birth yr |
|---|---|---|---|---|
| Laura Nelson | Spouse | — | 42 | ~1898 |
| Earl Nelson | Son | — | 26 | ~1914 |
| O Nelson | Head | — | 50 | ~1890 |
Census Appearances
1920
Cass, North …
Son, age 5
Cass, North Dakota · implied b. ~1915 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nelson |
| Given Name | Earl R |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | North Dakota |
| Father's Birthplace | Norway |
| Mother's Birthplace | Minnesota |
| Occupation | none |
| Can Read | No |
| Can Write | No |
| Speaks English | Yes |
| Mother Tongue | Norwegian |
| Birth State | North Dakota |
| Birth Country | United States |
| Birthplace (normalized) | north dakota |
1930
Cass, North …
Son, age 16
Cass, North Dakota · implied b. ~1914 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nelson |
| Given Name | Earl L. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | North Dakota |
| Father's Birthplace | Norway |
| Mother's Birthplace | Minnesota |
| Can Read/Write | Yes |
| Birth State | North Dakota |
| Birth Country | United States |
| Birthplace (normalized) | north dakota |
1940
Cass-County, North …
Son, age 26
Cass-County, North Dakota · implied b. ~1914 — 3 household members
| Surname | Nelson |
| Given Name | Earl |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | North Dakota |
| 1935 Residence (City) | Fargo City |
| 1935 Residence (County) | Cass |
| Occupation | Electrician |
| Industry | Electric Shop |
| Class of Worker | PW |
| Hours Worked | 30 |
| Income (1939) | 31 |
| Highest Grade | C 3 |
| 1935 Residence | Same place |
| Birth State | North Dakota |
| Birth Country | United States |
| Birthplace (normalized) | north dakota |
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 Earl Nelson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father O Nelson (~0.92 confidence) and father Otto Nelson (~0.92 confidence) and mother Laura Nelson (~0.92 confidence) and mother Laura Nelson (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
O Nelson
b. ~1890
Source father
● Household
· direct · ~0.92
Father
Otto Nelson
b. ~1884
Source father
● Household
· direct · ~0.92
Mother
Laura Nelson
b. ~1898
Source mother
● Household
· direct · ~0.92
Mother
Laura Nelson
b. ~1891
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Earl Nelson
Son · 1940 · age 26 · b. ~1914 · North Dakota
★ 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 — Cass-County, North Dakota
Open full size
1940 US Federal Census — Cass-County, North Dakota
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02997-00079)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Allen Gregory | 58 | Head | Owner | Canada |
| 2 | Fannie Gregory | 52 | Wife | Book-Keeper | North Dakota |
| 3 | Laurence Gregory | 21 | Son | Salesman | North Dakota |
| 4 | Anita Rust | 33 | Daughter | — | North Dakota |
| 5 | Gregory Gregory | 11 | Grandson | — | North Dakota |
| 6 | Harry A. Weaver | 44 | Head | Lawyer | Wisconsin |
| 7 | Edna Weaver | 48 | Wife | — | South Dakota |
| 8 | Patricia Ann Weaver | 11 | Daughter | — | North Dakota |
| 9 | Neil Hansen | 55 | Head | Tailor | Denmark |
| 10 | Thelma E. Hansen | 55 | Wife | — | Wisconsin |
| 11 | Regina Jarvis | 69 | Head | — | Canada |
| 12 | Richard Jarvis | 33 | Son | Partner | Minnesota |
| 13 | Walter Jarvis | 27 | Son | Partner | Minnesota |
| 14 | Lyllah Schriver | 18 | Housekeeper | Housekeeper | North Dakota |
| 15 | Clara Mrs. Curson | 70 | Head | — | Iowa |
| 16 | Evelyn Curson | 30 | Daughter | — | North Dakota |
| 17 | Robert A. Blomquist | 37 | Head | Mechanic | North Dakota |
| 18 | Ellstene Blomquist | 33 | Wife | — | North Dakota |
| 19 | Maurice Blomquist | 10 | Son | — | North Dakota |
| 20 | John Boulcott | 30 | Head | Distributor | Illinois |
| 21 | Dorothy Boulcott | 28 | Wife | — | Kansas |
| 22 | Barbara Boulcott | 7 | Daughter | — | Nebraska |
| 23 | Penelope Boulcott | 3 | Daughter | — | North Dakota |
| 24 | James R. Dice | 54 | Head | College Prof. | Pennsylvania |
| 25 | Marion Dice | 48 | Wife | Extension Specialist | Nebraska |
| 26 | Harry Graves | 37 | Lodger | College Prof. | North Dakota |
| 27 | Harry Rush | 55 | Head | College Prof. | Iowa |
| 28 | Edna Rush | 55 | Wife | — | Nebraska |
| 29 | Clayton Rush | 17 | Son | — | North Dakota |
| 30 | John H. Potter | 64 | Head | Deputy Sheriff | Wisconsin |
| 31 | Jessie A. Potter | 59 | Wife | — | Minnesota |
| 32 | Lorene Potter | 21 | Daughter | — | North Dakota |
| 33 | Marie M. Brunelle | 46 | Head | Clerical Work | Minnesota |
| 34 | August Brunelle | 74 | Father | — | Canada |
| 35 | O. C. Nelson | 50 | Head | Painter | Norway |
| 36 | Laura Nelson | 42 | Wife | — | Minnesota |
| 37 | Earl Nelson THIS PERSON | 26 | Son | Electrician | North Dakota |
| 38 | George A. White | 54 | Head | Salesman | Iowa |
| 39 | Aletha White | 50 | Wife | — | Iowa |
| 40 | Carl A. White | 22 | Son | — | Minnesota |
Pedigree Summary
Earl
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)