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Helen Mitchell — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Helen Mitchell across the 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a daughter (b.~1920), then head of a 9-person household.
Age 20
b. ~1920
Female
Daughter
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Mitchell |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Occupation | File Clerk |
| Industry | Mail Order |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 266 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | File Clerk |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1920 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Helen | Age | Birth yr |
|---|---|---|---|---|
| Mary Mitchell | Spouse | — | 53 | ~1887 |
| Leah Welling | Spouse | — | 32 | ~1908 |
| Helen Mitchell | Daughter | — | 20 | ~1920 |
| Marie Mitchell | Other | — | 25 | ~1915 |
| Amos Mitchell | Son | — | 25 | ~1915 |
| Norman Welling | Head | — | 33 | ~1907 |
| Philis Welling | Daughter | — | 5 | ~1935 |
| Mary Mitchell | Daughter | — | 25 | ~1915 |
| Robert Welling | Son | — | 11 | ~1929 |
Census Appearances
1930
Cook, Illinois
Daughter, age 10
Cook, Illinois · implied b. ~1920 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mitchell |
| Given Name | Helen M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | New York |
| Mother's Birthplace | Illinois |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Daughter, age 20
Cook-County, Illinois · implied b. ~1920 — 9 household members
| Surname | Mitchell |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Occupation | File Clerk |
| Industry | Mail Order |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 266 |
| Highest Grade | Hs 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 Helen Mitchell across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Helen Mitchell
Daughter · 1940 · age 20 · b. ~1920 · Illinois
★ You are viewing this record
Sibling
Robert Welling
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Mitchell
Sibling · 1940 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Philis Welling
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Amos Mitchell
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
39 people indexed on this census page (nara:1940:m-t0627-01000-00883)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Laura V. Olsen | 35 | Daughter | — | Illinois |
| 42 | Harry Blessinger | 45 | Head | Tool Grinder | Wisconsin |
| 43 | Pauline Blessinger | 42 | Wife | — | Illinois |
| 44 | Wilder Blessinger | 22 | Son | Trimmer | Wisconsin |
| 45 | Harry Jr. Blessinger | 21 | Son | Apprentice | Wisconsin |
| 46 | Dorothy Blessinger | 18 | Daughter | New Worker | Wisconsin |
| 47 | John Vindemark | 35 | Head | Baker | Sweden |
| 48 | Ina Vindemark | 29 | Wife | — | Sweden |
| 49 | Anita Vindemark | 3 | Daughter | — | Illinois |
| 50 | Mathias Griffel | 58 | Head | Owner | Austria |
| 51 | Nettie Griffel | 56 | Wife | Owner | Latvia |
| 52 | Arthur Verner | 59 | Head | Shipping Clerk | Illinois |
| 53 | Frank Verner | 24 | Son | Mechanic | Illinois |
| 54 | Lucille Verner | 28 | Daughter in law | — | Illinois |
| 55 | Frank Jr. Verner | 5 | Grandson | — | Illinois |
| 56 | Gerald Verner | 2 | Grandson | — | Illinois |
| 57 | Ruth Hanson | 28 | Roomer | General Office | Illinois |
| 58 | Frank Rostock | 59 | Head | Photo Engraver | Illinois |
| 59 | Helen Rostock | 56 | Wife | — | Illinois |
| 60 | Oliver Rostock | 27 | Son | — | Illinois |
| 61 | Marian Rostock | 22 | Daughter | Clerk | Illinois |
| 62 | Geraldine Rostock | 18 | Daughter | — | Illinois |
| 63 | Antonio Aceto | 41 | Head | Operator | Italy |
| 64 | Angeline Aceto | 40 | Wife | Sewing | Italy |
| 65 | Rose Aceto | 19 | Daughter | Inspector | Italy |
| 66 | Millie Aceto | 19 | Daughter | — | Italy |
| 67 | Caroline Aceto | 9 | Daughter | — | Illinois |
| 68 | James Cunningham | 48 | Head | Polisher & Buffer | Minnesota |
| 69 | Ida Cunningham | 50 | Wife | — | Illinois |
| 70 | Minnie Schroeder | 84 | Mother | — | Germany |
| 71 | Norman Welling | 33 | Head | Salesman | Ohio |
| 72 | Leah Welling | 32 | Wife | — | Ohio |
| 73 | Philis Welling | 5 | Daughter | — | Illinois |
| 74 | Robert Welling | 11 | Son | — | Illinois |
| 75 | Mary Mitchell | 53 | Wife | — | Illinois |
| 76 | Mary Mitchell | 25 | Daughter | New Worker | Illinois |
| 77 | Helen Mitchell THIS PERSON | 20 | Daughter | File Clerk | Illinois |
| 78 | Amos F. Mitchell | 25 | Son | Clerk | Illinois |
| 79 | Marie Mitchell | 25 | Daughter in law | Assembly | Illinois |
Related Census Records
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)