CN
Carl Nelson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Eau-Claire-County, Wisconsin
Our Model Tree links this Carl Nelson across the 1910, 1920, 1930 and 1940 US Censuses in Eau-Claire-County, Wisconsin (XGBoost, ~Confirmed), with identified parents Gilbert & Juna — first a head (b.~1888), then head of a 4-person household.
Age 52
b. ~1888
Male
Head
Born: Wisconsin
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Eau-Claire-County, Wisconsin |
| Surname | Nelson |
| Given Name | Carl |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 52 |
| Marital Status | Married |
| Birthplace | Wisconsin |
| 1935 Residence (City) | Eau Claire |
| 1935 Residence (County) | Eau Claire |
| Additional Details | |
| Occupation | Operator |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 100 |
| Income (1939) | 0 |
| Highest Grade | G-4 |
| 1935 Residence | Wisconsin |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
| Occupation | Operator |
| Township / Ward | Union Town |
| Est. Birth Year | ~1888 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Carl | Age | Birth yr |
|---|---|---|---|---|
| Carl Nelson | Head | — | 52 | ~1888 |
| Ralph Nelson | Son | — | 26 | ~1914 |
| Walter Nelson | Son | — | 7 | ~1933 |
| Mary Nelson | Spouse | — | 56 | ~1884 |
Census Appearances
1910
Eau Claire, …
Son, age 21
Eau Claire, Wisconsin · implied b. ~1889 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nelson |
| Given Name | Carl |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| Father's Birthplace | Norway |
| Mother's Birthplace | Norway |
| Occupation | Machinist |
| Industry | Railroad Shop |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
1920
Eau Claire, …
Head, age 31
Eau Claire, Wisconsin · implied b. ~1889 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nelson |
| Given Name | Carl |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Wisconsin |
| Father's Birthplace | Norway |
| Mother's Birthplace | Norway |
| Occupation | Foreman |
| Industry | Machine Shop |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Norwegian |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
1930
Eau Claire, …
Head, age 41
Eau Claire, Wisconsin · implied b. ~1889 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nelson |
| Given Name | Carl |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 41 |
| Marital Status | Widowed |
| Birthplace | Wisconsin |
| Age at First Marriage | 21 |
| Father's Birthplace | Norway |
| Mother's Birthplace | Norway |
| Occupation | Superintendent |
| Industry | Steel & Iron |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 7000 |
| Radio Set | R |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
1940
Eau-Claire-County, Wisconsin
Head, age 52
Eau-Claire-County, Wisconsin · implied b. ~1888 — 4 household members
| Surname | Nelson |
| Given Name | Carl |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 52 |
| Marital Status | Married |
| Birthplace | Wisconsin |
| 1935 Residence (City) | Eau Claire |
| 1935 Residence (County) | Eau Claire |
| Occupation | Operator |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 100 |
| Income (1939) | 0 |
| Highest Grade | G-4 |
| 1935 Residence | Wisconsin |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
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 Nelson across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Gilbert Nelson (~0.92 confidence) and mother Juna Nelson (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Gilbert Nelson
b. ~1859
Source father
● Household
· direct · ~0.92
Mother
Juna Nelson
b. ~1862
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Carl Nelson
Head · 1940 · age 52 · b. ~1888 · Wisconsin
★ 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 — Eau-Claire-County, Wisconsin
Open full size
1940 US Federal Census — Eau-Claire-County, Wisconsin
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-04478-00209)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Lucy E. Greene | 42 | Wife | Operator | Wisconsin |
| 2 | Donald A. Greene | 18 | Son | — | Wisconsin |
| 3 | Xenith Greene | 15 | Son | — | Wisconsin |
| 4 | George Christopher | 31 | Head | Operator | Wisconsin |
| 5 | Marie Christopher | 32 | Wife | — | Tennessee |
| 6 | Lois Christopher | 5 | Daughter | — | Wisconsin |
| 7 | Jerome Christopher | 2 | Son | — | Wisconsin |
| 8 | Donald Christopher | 0 | Son | — | Wisconsin |
| 9 | Tilda Peterson | 64 | Head | — | Sweden |
| 10 | Gertrude Peterson | 20 | Daughter | Clerk | Wisconsin |
| 11 | Julius Gofland | 55 | Head | — | Iowa |
| 12 | Flora Gofland | 51 | Wife | — | No. Dakota |
| 13 | Florence Gofland | 20 | Daughter | Clerk | Wisconsin |
| 14 | Pearl Gofland | 17 | Daughter | — | Wisconsin |
| 15 | Clarence Brill | 44 | Head | Agent | Wisconsin |
| 16 | Louisa Brill | 46 | Wife | — | Wisconsin |
| 17 | Willard Brill | 12 | Son | — | Wisconsin |
| 18 | Willard Enge | 42 | Head | Teacher | Wisconsin |
| 19 | Mildred Enge | 43 | Wife | — | Wisconsin |
| 20 | Maxine Enge | 19 | Daughter | — | Montana |
| 21 | Earl Enge | 12 | Son | — | Wisconsin |
| 22 | Peter E. Anderson | 59 | Head | Operator | Wisconsin |
| 23 | Dorothy Anderson | 43 | Wife | — | Wisconsin |
| 24 | Doris Anderson | 5 | Daughter | — | Wisconsin |
| 25 | Peter Tiller | 41 | Head | Braker | Wisconsin |
| 26 | Ellen Tiller | 39 | Wife | — | Wisconsin |
| 27 | Peter J. Tiller | 15 | Son | — | Washington |
| 28 | Leo B. Tiller | 12 | Son | — | Wisconsin |
| 29 | Ray Tiller | 38 | Head | Operator | Iowa |
| 30 | Nellie Tiller | 44 | Sister | Teacher | Iowa |
| 31 | Mary Tiller | 71 | Mother | — | Iowa |
| 32 | Emil Freyer | 44 | Head | Clerical | Wisconsin |
| 33 | Alice Freyer | 42 | Wife | — | Wisconsin |
| 34 | Robert Freyer | 18 | Son | — | Wisconsin |
| 35 | Milo J. Hanson | 62 | Head | Operator | Wisconsin |
| 36 | Carl Nelson THIS PERSON | 52 | Head | Operator | Wisconsin |
| 37 | Mary Nelson | 56 | Wife | — | Wisconsin |
| 38 | Ralph Nelson | 26 | Son | Manager | Wisconsin |
| 39 | Walter Nelson | 7 | Son | — | Wisconsin |
| 40 | Sverre Fossel | 25 | Head | Labor | Illinois |
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)