EN
Elmer Nelson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Elmer Nelson across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed), with identified parents Charles — first a head (b.~1890), then head of a 4-person household.
Age 50
b. ~1890
Male
Head
Born: Illinois
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Nelson |
| Given Name | Elmer |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Occupation | Baker |
| Industry | Retail Bakery |
| Class of Worker | OA |
| Hours Worked | 80 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Baker |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1890 |
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 Elmer | Age | Birth yr |
|---|---|---|---|---|
| Bruce Nelson | Son | — | 7 | ~1933 |
| Elmer Nelson | Head | — | 50 | ~1890 |
| Jane Nelson | Daughter | — | 18 | ~1922 |
| Coki Nelson | Spouse | — | 45 | ~1895 |
Census Appearances
1920
Cook, Illinois
Son, age 30
Cook, Illinois · implied b. ~1890 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nelson |
| Given Name | Elmer |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Laborer |
| Industry | At Home |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Swedish |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Cook, Illinois
Head, age 39
Cook, Illinois · implied b. ~1891 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nelson |
| Given Name | Elmer A. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | Illinois |
| Age at First Marriage | 30 |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Proprietor |
| Industry | Bakery |
| Class of Worker | E |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 50,000 |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Head, age 50
Cook-County, Illinois · implied b. ~1890 — 4 household members
| Surname | Nelson |
| Given Name | Elmer |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Occupation | Baker |
| Industry | Retail Bakery |
| Class of Worker | OA |
| Hours Worked | 80 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
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 Elmer Nelson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Charles Nelson (~0.92 confidence). The pedigree spans 1 generation with 1 identified ancestor.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Charles Nelson
b. ~1861
Source father
● Household
· direct · ~0.92
This person
Anchor record
Elmer Nelson
Head · 1940 · age 50 · b. ~1890 · Illinois
★ 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 — Cook-County, Illinois
Open full size
1940 US Federal Census — Cook-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01022-00837)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | August P Evert | 42 | Head | Truck Driver | Illinois |
| 2 | Gladys Evert | 37 | Wife | — | Illinois |
| 3 | Gloria Evert | 15 | Daughter | — | Illinois |
| 4 | August F Evert | 12 | Son | — | Illinois |
| 5 | Catherine Evert | 9 | Daughter | — | Illinois |
| 6 | John Liden | 34 | Head | Painter | Sweden |
| 7 | Helen Liden | 33 | Wife | — | Sweden |
| 8 | John Jr Liden | 11 | Son | — | Illinois |
| 9 | Harold Liden | 1 | Son | 0 | Illinois |
| 10 | Frank R Winkle | 58 | Head | Clothing Salesman | Sweden |
| 11 | Emma C Winkle | 58 | Wife | — | Russia |
| 12 | Frank Jr Winkle | 27 | Son | Furrier Apprentice | Illinois |
| 13 | Harold Winkle | 24 | Son | Musician | Illinois |
| 14 | Max Schuemann | 45 | Head | Proprietor | Illinois |
| 15 | Walter Schuemann | 42 | Brother | Partner | Illinois |
| 16 | Lilly Schuemann | 47 | Sister | Saleswoman | Illinois |
| 17 | Johanna Schuemann | 81 | Mother | — | Germany |
| 18 | Joseph A Carlson | 58 | Head | Salesman | Sweden |
| 19 | Annie Carlson | 55 | Wife | Baker | Sweden |
| 20 | Davida Werner | 82 | Mother-in-law | Machinist | Sweden |
| 21 | Carl Werner | 39 | Brother-in-law | — | Sweden |
| 22 | Elmer Nelson THIS PERSON | 50 | Head | Baker | Illinois |
| 23 | Coki Nelson | 45 | Wife | — | Sweden |
| 24 | Jane Nelson | 18 | Daughter | — | Illinois |
| 25 | Bruce Nelson | 7 | Son | — | Illinois |
| 26 | Charles Troxmaier | 60 | Head | Bricklayer | Austria |
| 27 | Helen Troxmaier | 52 | Wife | — | Austria |
| 28 | Helen Troxmaier | 24 | Daughter | Stenographer | Illinois |
| 29 | Fred Troxmaier | 22 | Son | Recording Clerk | Illinois |
| 30 | Lewis H Margolis | 39 | Head | President Salesman | Lithuania |
| 31 | Beatrice A Margolis | 31 | Wife | — | Illinois |
| 32 | Morton E Margolis | 10 | Son | — | Illinois |
| 33 | Sue Ellen Margolis | 2 | Daughter | 0 | Illinois |
| 34 | Ellen Ostrand | 35 | Housekeeper | Private Nurse | Illinois |
| 35 | Edward K Dennis | 40 | Head | Traveling Salesman | Indiana |
| 36 | Ruth Dennis | 41 | Wife | — | Illinois |
| 37 | Jean Dennis | 19 | Daughter | — | Illinois |
| 38 | Kenneth Dennis | 16 | Son | — | Illinois |
| 39 | Marilyn Dennis | 15 | Daughter | — | Illinois |
| 40 | Sophia Sylvester | 78 | Head | — | Illinois |
Pedigree Summary
Elmer
Gen 1 · 1 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)