MN
Mildred Nelson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Mildred Nelson across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed), with identified parents Remena & Fred — first a daughter (b.~1915), then head of a 4-person household.
Age 25
b. ~1915
Female
Daughter
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Nelson |
| Given Name | Mildred |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Occupation | Telephone Operator |
| Industry | Telephone |
| Class of Worker | PW |
| Hours Worked | 32 |
| Income (1939) | 1170 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Telephone Operator |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1915 |
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 Mildred | Age | Birth yr |
|---|---|---|---|---|
| Bernice Nelson | Daughter | — | 25 | ~1915 |
| Mildred Nelson | Daughter | — | 25 | ~1915 |
| Remena Nelson | Head | — | 65 | ~1875 |
| Gunwald Nelson | Son | — | 30 | ~1910 |
Census Appearances
1920
Cook, Illinois
Daughter, age 3
Cook, Illinois · implied b. ~1917 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nelson |
| Given Name | Mildred T. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Can Read | No |
| Can Write | No |
| Speaks English | No |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Cook, Illinois
Daughter, age 14
Cook, Illinois · implied b. ~1916 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nelson |
| Given Name | Mildred |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Daughter, age 25
Cook-County, Illinois · implied b. ~1915 — 4 household members
| Surname | Nelson |
| Given Name | Mildred |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Occupation | Telephone Operator |
| Industry | Telephone |
| Class of Worker | PW |
| Hours Worked | 32 |
| Income (1939) | 1170 |
| 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 Mildred Nelson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Remena Nelson (~0.92 confidence) and father Fred Nelson (~0.92 confidence) and father Harry Nelson (~0.92 confidence) and mother Rosa Nelson (~0.92 confidence) and mother Vera Nelson (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Remena Nelson
b. ~1875
Source mother
● Household
· direct · ~0.92
Father
Fred Nelson
b. ~1888
Source father
● Household
· direct · ~0.92
Father
Harry Nelson
b. ~1892
Source father
● Household
· direct · ~0.92
Mother
Rosa Nelson
b. ~1894
Source mother
● Household
· direct · ~0.92
Mother
Vera Nelson
b. ~1894
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mildred Nelson
Daughter · 1940 · age 25 · b. ~1915 · Illinois
★ You are viewing this record
Sibling
Gunwald Nelson
Sibling · 1940 · age 30
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Bernice Nelson
Sibling · 1940 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
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-t0627-00990-00325)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Helen Kachinovas | 4 | Daughter | — | Illinois |
| 42 | Fred Beckett | 34 | Son | Press Operator | Illinois |
| 43 | William Milano | 52 | Head | Printer | Illinois |
| 44 | Stella Milano | 47 | Wife | Candy Dipper | Italy |
| 45 | Rocco Milano | 25 | Son | Sprayer | Illinois |
| 46 | Rose Milano | 20 | Daughter | — | Illinois |
| 47 | Fred Rasmussen | 66 | Head | Electrician | Denmark |
| 48 | Remena Nelson | 65 | Head | — | Norway |
| 49 | Bernice Nelson | 25 | Daughter | Wrapper | Illinois |
| 50 | Gunwald Nelson | 30 | Son | Asst Superintendent | Illinois |
| 51 | Mildred Nelson THIS PERSON | 25 | Daughter | Telephone Operator | Illinois |
| 52 | Tom Larsen | 63 | Head | Chauffeur | Norway |
| 53 | Dora Larsen | 58 | Wife | — | Norway |
| 54 | Chas Larsen | 17 | Son | — | Illinois |
| 55 | Hans Hansen | 24 | Nephew | Laborer | Norway |
| 56 | Lawrence Reed | 41 | Head | Organist | Pennsylvania |
| 57 | Dorothy Reed | 35 | Wife | — | Illinois |
| 58 | Lawrence Reed | 17 | Son | New Worker | Arkansas |
| 59 | Dorothy Reed | 16 | Daughter | — | Illinois |
| 60 | Shirley Reed | 12 | Daughter | — | Pennsylvania |
| 61 | Rosemary Reed | 10 | Daughter | — | Pennsylvania |
| 62 | Marilyn Reed | 3 | Daughter | — | Illinois |
| 63 | Stella Pappinski | 58 | Head | — | Poland |
| 64 | Martha Pappinski | 24 | Daughter | Supervisor | Illinois |
| 65 | Frank Pappinski | 22 | Son | Teaching | Illinois |
| 66 | Edward Pappinski | 19 | Son | Bakers Helper | Illinois |
| 67 | Charles Nielson | 46 | Head | Chauffeur | Illinois |
| 68 | Esther Nielson | 45 | Wife | — | Norway |
| 69 | Charles Nielson | 24 | Son | Watchman | Illinois |
| 70 | June Nielson | 17 | Daughter | — | Illinois |
| 71 | Audrey Nielson | 15 | Daughter | — | Illinois |
| 72 | Carl Nielson | 11 | Son | — | Illinois |
| 73 | Norman Nielson | 9 | Son | — | Illinois |
| 74 | Marilyn Nielson | 7 | Daughter | — | Illinois |
| 75 | Marlene Nielson | 7 | Daughter | — | Illinois |
| 76 | Charles Krischke | 45 | Head | Maintenance Man | Illinois |
| 77 | Josephine Krischke | 36 | Wife | Assembler | Illinois |
| 78 | Esther Krischke | 12 | Son | — | Illinois |
| 79 | Virginia Krischke | 9 | Daughter | — | Illinois |
| 80 | Ingeborg Jensen | 76 | Head | — | Norway |
Pedigree Summary
Mildred + 2 siblings
Gen 1 · 5 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)