MN
Margaret Nelson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Margaret Nelson across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed), with identified parents Frank & John — first a daughter (b.~1918), then head of a 3-person household.
Age 22
b. ~1918
Female
Daughter
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Nelson |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Hazelcrest |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Occupation | Stenographer |
| Industry | Lawyer |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 750 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Stenographer |
| Township / Ward | Hazelcrest |
| Est. Birth Year | ~1918 |
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 Margaret | Age | Birth yr |
|---|---|---|---|---|
| Margaret Nelson | Daughter | — | 22 | ~1918 |
| John Nelson | Head | — | 54 | ~1886 |
| Julia Nelson | Spouse | — | 55 | ~1885 |
Census Appearances
1920
Cook, Illinois
Daughter, age
Cook, Illinois · implied b. ~1920 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nelson |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Cook, Illinois
Daughter, age 11
Cook, Illinois · implied b. ~1919 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nelson |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Denmark |
| Occupation | Stenographer |
| Industry | Heating Implements |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Daughter, age 22
Cook-County, Illinois · implied b. ~1918 — 3 household members
| Surname | Nelson |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Hazelcrest |
| 1935 Residence (County) | Cook |
| Occupation | Stenographer |
| Industry | Lawyer |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 750 |
| Highest Grade | H-4 |
| 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 Margaret Nelson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Frank Nelson (~0.92 confidence) and father John Nelson (~0.92 confidence) and mother Julia Nelson (~0.92 confidence) and father John Nelson (~0.92 confidence) and mother Petra Nelson (~0.92 confidence) and mother Julia Nelson (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Frank Nelson
b. ~1879
Source father
● Household
· direct · ~0.92
Father
John Nelson
b. ~1880
Source father
● Household
· direct · ~0.92
Mother
Julia Nelson
b. ~1885
Source mother
● Household
· direct · ~0.92
Father
John Nelson
b. ~1886
Source father
● Household
· direct · ~0.92
Mother
Petra Nelson
b. ~1886
Source mother
● Household
· direct · ~0.92
Mother
Julia Nelson
b. ~1892
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Margaret Nelson
Daughter · 1940 · age 22 · b. ~1918 · 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-t0627-00775-00370)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Clyde Willow | 41 | Head | Plant Engineer | Missouri |
| 2 | Lamae Willow | 42 | Wife | — | Illinois |
| 3 | Barbara Willow | 12 | Daughter | — | Illinois |
| 4 | Clyde Willow | 8 | Son | — | Illinois |
| 5 | John Young | 50 | Head | Accountant | Iowa |
| 6 | Shirley Young | 42 | Wife | — | Iowa |
| 7 | Helen Young | 14 | Daughter | — | Iowa |
| 8 | William Young | 8 | Son | — | Illinois |
| 9 | Walter Christensen | 46 | Head | Boatwright | Illinois |
| 10 | Rose Christensen | 39 | Wife | — | Wisconsin |
| 11 | Elizabeth Christensen | 20 | Daughter | Stenographer | Illinois |
| 12 | George Christensen | 19 | Son | — | Illinois |
| 13 | Edward Budka | 23 | Nephew | Repairing Tires | Wisconsin |
| 14 | Joseph Denorke | 34 | Head | Fireman | Austria |
| 15 | Hattie Denorke | 33 | Wife | — | Illinois |
| 16 | Nona Belle Denorke | 9 | Daughter | — | Illinois |
| 17 | Albert Carlson | 55 | Head | Tool Maker | Massachusetts |
| 18 | Maude Carlson | 49 | Wife | — | Illinois |
| 19 | Warren Carlson | 18 | Son | Printer | Illinois |
| 20 | Leroy Carlson | 17 | Son | — | Illinois |
| 21 | Anna Hanrahan | 58 | Head | Practical Nurse | Illinois |
| 22 | Mary Dickerson | 73 | Sister | — | New York |
| 23 | Carmelia Sulla | 72 | Head | — | Italy |
| 24 | Angie Sulla | 45 | Daughter | — | Illinois |
| 25 | Harry Cooper | 26 | Head | Tank Washer | Illinois |
| 26 | Cecile Cooper | 23 | Wife | — | Illinois |
| 27 | John Nelson | 54 | Head | Trimmer | Sweden |
| 28 | Julia Nelson | 55 | Wife | — | Sweden |
| 29 | Margaret Nelson THIS PERSON | 22 | Daughter | Stenographer | Illinois |
| 30 | Alfred Keiken | 30 | Head | Car Builder | Illinois |
| 31 | Frances Keiken | 26 | Wife | Archery Co | Illinois |
| 32 | Everidge Conant | 55 | Head | Salesman | Nebraska |
| 33 | Anna Conant | 54 | Wife | Teaching | Illinois |
| 34 | Van Conant | 23 | Son | Engineer | Texas |
| 35 | Rodger Conant | 21 | Son | Gas Attendant | Texas |
| 36 | Sally Conant | 17 | Daughter | — | Ohio |
| 37 | Jason Kramer | 50 | Head | Chief Clerk | Ohio |
| 38 | Estella Kramer | 48 | Wife | — | Kentucky |
| 39 | Paul Kramer | 26 | Son | Clerk | Kentucky |
| 40 | Raymond White | 38 | Head | Mechanic | Illinois |
Pedigree Summary
Margaret
Gen 1 · 6 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)