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Agnes Nelson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Agnes Nelson across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a spouse (b.~1901), then head of a 3-person household.
Age 39
b. ~1901
Female
Spouse
Born: Wisconsin
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Nelson |
| Given Name | Agnes |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | Wisconsin |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Highest Grade | H 7 |
| 1935 Residence | Same Place |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1901 |
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 Agnes | Age | Birth yr |
|---|---|---|---|---|
| Lorraine Nelson | Daughter | — | 12 | ~1928 |
| Agnes Nelson | Spouse | — | 39 | ~1901 |
| Otto Nelson | Head | — | 45 | ~1895 |
Census Appearances
1920
Cook, Illinois
Other, age 17
Cook, Illinois · implied b. ~1903 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nelson |
| Given Name | Agnes |
| Relationship to Head | Maid |
| Sex | F |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| Father's Birthplace | Wisconsin |
| Mother's Birthplace | Norway |
| Occupation | Maid |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Norwegian |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
1930
Cook, Illinois
Other, age 28
Cook, Illinois · implied b. ~1902 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nelson |
| Given Name | Agnes |
| Relationship to Head | Boarder |
| Sex | F |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| Father's Birthplace | Wisconsin |
| Mother's Birthplace | Wisconsin |
| Occupation | Timekeeper |
| Industry | Wholesale House |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
1940
Cook-County, Illinois
Spouse, age 39
Cook-County, Illinois · implied b. ~1901 — 3 household members
| Surname | Nelson |
| Given Name | Agnes |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | Wisconsin |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Highest Grade | H 7 |
| 1935 Residence | Same Place |
| 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 Agnes 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
Agnes Nelson
Spouse · 1940 · age 39 · b. ~1901 · 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-t0627-00983-00288)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Pauline Horvath | 55 | Wife | — | Austria |
| 42 | Benjamin Thulmann | 52 | Head | Peddler | Russia |
| 43 | Sarah M. Thulmann | 52 | Wife | — | Austria |
| 44 | Lee Gelder | 61 | Head | Desk | Illinois |
| 45 | Harry Peterson | 55 | Head | Housekeeper | Illinois |
| 46 | Harry Peterson | 24 | Son | Oil Peddler | Illinois |
| 47 | Raymond Fleischer | 27 | Head | Punch Press | Illinois |
| 48 | Daisy Fleischer | 26 | Wife | — | Illinois |
| 49 | Barbara Fleischer | 8 | Daughter | — | Illinois |
| 50 | Gladys Fleischer | 5 | Daughter | — | Illinois |
| 51 | Arlene Fleischer | 2 | Daughter | — | Illinois |
| 52 | Edna Alleen | 46 | Head | — | Illinois |
| 53 | Rosella Anderson | 25 | Daughter | Labeler | Illinois |
| 54 | Dorothy Meredith | 24 | Daughter | Die Cutter | Illinois |
| 55 | Sondra Baccene | 24 | Head | Custodian | Wisconsin |
| 56 | Eleanor Lane | 44 | Head | — | Illinois |
| 57 | Ralph Lane | 23 | Son | Chauffeur | Illinois |
| 58 | Mildred Lane | 18 | Son | New Worker | Illinois |
| 59 | Delbert Lane | 16 | Son | — | Illinois |
| 60 | Esther Lane | 14 | Daughter | — | Illinois |
| 61 | Leona Lane | 10 | Daughter | — | Illinois |
| 62 | Otto Metzger | 61 | Head | Shoeler | Germany |
| 63 | Fred Schmude | 53 | Head | Roll Maker | Illinois |
| 64 | Olaf Mathisen | 57 | Head | Bed Laster | Norway |
| 65 | Alfred Atteron | 43 | Head | Machinist | Norway |
| 66 | Amelia Atteron | 35 | Wife | — | Illinois |
| 67 | Dorothy Atteron | 8 | Daughter | — | Illinois |
| 68 | Joan Atteron | 1 | Daughter | — | Illinois |
| 69 | Joseph Pfeiffer | 42 | Head | Bartender | Austria |
| 70 | Otto H. Nelson | 45 | Head | Carpenter | Wisconsin |
| 71 | Agnes Nelson THIS PERSON | 39 | Wife | — | Wisconsin |
| 72 | Lorraine Nelson | 12 | Daughter | — | Illinois |
| 73 | Robert Miller | 50 | Head | Millwright | Michigan |
| 74 | Sarah Schatz | 45 | Head | Seamstress | Virginia |
| 75 | Myron Zembulski | 23 | Head | Decorator | Illinois |
| 76 | John Petrov | 29 | Head | Sheet Metal | Germany |
| 77 | Gerald Kozemchak | 32 | Head | Cashier | Illinois |
| 78 | Sidney Kozemchak | 3 | Son | — | Illinois |
| 79 | Frank Hardwicke | 53 | Head | Attendant | Missouri |
| 80 | Charles Clark | 64 | Head | — | Sweden |
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)