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David Nelson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this David Nelson across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a head (b.~1891), then head of a 5-person household.
Age 49
b. ~1891
Male
Head
Born: Sweden
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Nelson |
| Given Name | David |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| Birthplace | Sweden |
| 1935 Residence (City) | Berwyn City |
| 1935 Residence (County) | Cook |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | proprietor |
| Industry | painting & decorating |
| Class of Worker | OA |
| Hours Worked | 30 |
| Income (1939) | 0 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth Country | Sweden |
| Birthplace (normalized) | sweden |
| Occupation | Proprietor |
| Township / Ward | Berwyn City |
| Est. Birth Year | ~1891 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to David | Age | Birth yr |
|---|---|---|---|---|
| David Nelson | Head | — | 49 | ~1891 |
| Robert Nelson | Son | — | 13 | ~1927 |
| Barbara Nelson | Daughter | — | 5 | ~1935 |
| David Nelson | Son | — | 15 | ~1925 |
| Bertha Nelson | Spouse | — | 42 | ~1898 |
Census Appearances
1920
Cook, Illinois
Head, age 28
Cook, Illinois · implied b. ~1892 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nelson |
| Given Name | David |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Married |
| Birthplace | Sweden |
| Year of Immigration | 1909 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Foreman |
| Industry | Private Home |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Swedish |
| Home Owned/Rented | R |
| Birth Country | Sweden |
| Year of Naturalization | 1917 |
| Birthplace (normalized) | sweden |
1930
Cook, Illinois
Head, age 39
Cook, Illinois · implied b. ~1891 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nelson |
| Given Name | David V. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | Sweden |
| Naturalization Status | Naturalized |
| Year of Immigration | 1908 |
| Age at First Marriage | 22 |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Superintendent |
| Industry | Building |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | Swedish |
| Home Owned/Rented | R |
| Home Value / Rent | 80 |
| Radio Set | R |
| Birth Country | Sweden |
| Birthplace (normalized) | sweden |
1940
Cook-County, Illinois
Head, age 49
Cook-County, Illinois · implied b. ~1891 — 5 household members
| Surname | Nelson |
| Given Name | David |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| Birthplace | Sweden |
| 1935 Residence (City) | Berwyn City |
| 1935 Residence (County) | Cook |
| Naturalization Status | Naturalized |
| Occupation | proprietor |
| Industry | painting & decorating |
| Class of Worker | OA |
| Hours Worked | 30 |
| Income (1939) | 0 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth Country | Sweden |
| Birthplace (normalized) | sweden |
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 David Nelson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
David Nelson
Head · 1940 · age 49 · b. ~1891 · Illinois
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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-t0627-00772-00389)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Cathleen Courtle | 30 | Wife | 0 | Illinois |
| 42 | Walter Hurdle | 35 | Head | Service Man | Pennsylvania |
| 43 | Irene Hurdle | 35 | Wife | 0 | Washington |
| 44 | Betty J. Hurdle | 13 | Daughter | 0 | Alabama |
| 45 | Billie May Hurdle | 13 | Daughter | 0 | Alabama |
| 46 | Thomas D. Gallagher | 37 | Head | Clerk | England |
| 47 | Grace Gallagher | 36 | Wife | 0 | Illinois |
| 48 | Johanna Gallagher | 3 | Daughter | 0 | Illinois |
| 49 | Thomas Gallagher | 3 | Son | 0 | Illinois |
| 50 | David Nelson THIS PERSON | 49 | Head | Proprietor | Sweden |
| 51 | Bertha Nelson | 42 | Wife | 0 | Iowa |
| 52 | David Jr. Nelson | 15 | Son | 0 | Illinois |
| 53 | Robert Nelson | 13 | Son | 0 | Illinois |
| 54 | Barbara Nelson | 5 | Daughter | 0 | Illinois |
| 55 | Ida Dandanell | 54 | Head | 0 | Illinois |
| 56 | Walter Dandanell | 49 | Brother | Hospital Attendant | Illinois |
| 57 | Arthur Wagg | 39 | Head | Inspector | Illinois |
| 58 | Julia Wagg | 40 | Wife | 0 | Illinois |
| 59 | Dorothy Wagg | 18 | Daughter | Clerk | Illinois |
| 60 | Arthur Jr. Wagg | 12 | Son | 0 | Illinois |
| 61 | William D. Hart | 29 | Head | Draftsman | Illinois |
| 62 | Florenz Hart | 26 | Wife | 0 | Illinois |
| 63 | Leroy F. Bittelhauf | 50 | Head | Clerical Office | Illinois |
| 64 | Alma R. Bittelhauf | 49 | Wife | 0 | Illinois |
| 65 | Edwin C. Bittelhauf | 23 | Son | Gasoline Station Attendant | Illinois |
| 66 | Louis Iners | 53 | Head | 0 | Illinois |
| 67 | Bessie Iners | 41 | Wife | 0 | Illinois |
| 68 | Louis Prucha | 44 | Head | Stock Keeper | Czechoslovakia |
| 69 | Josephine Prucha | 43 | Wife | 0 | Illinois |
| 70 | Joseph Saur | 70 | Father-in-law | 0 | Czechoslovakia |
| 71 | Frank Henkel | 42 | Head | Proprietor | Illinois |
| 72 | Mary Henkel | 52 | Wife | 0 | Hungary |
| 73 | Frank Jr. Henkel | 19 | Son | Painter & Decorator | Illinois |
| 74 | Lillian Henkel | 19 | Daughter-in-law | 0 | Illinois |
| 75 | Barbara Henkel | 10 | Daughter | 0 | Illinois |
| 76 | James Zapirasky | 39 | Head | Superintendent | Illinois |
| 77 | Mildred Zapirasky | 35 | Wife | 0 | Illinois |
| 78 | James Jr. Zapirasky | 15 | Son | 0 | Illinois |
| 79 | James Westal | 36 | Brother-in-law | Fireman | Illinois |
| 80 | Edmund Preibie | 50 | Head | Inspector | Illinois |
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)