MC
Margaret Conway — 1940 US Census Record
Model Tree available1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Margaret Conway across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed), with identified parents Robert & William — first a daughter (b.~1919), then head of a 5-person household.
Age 21
b. ~1919
Female
Daughter
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Conway |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Occupation | Calculator |
| Industry | Research Lab |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1400 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Calculator |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1919 |
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 Margaret | Age | Birth yr |
|---|---|---|---|---|
| Patricia Conway | Daughter | — | 17 | ~1923 |
| Annette Conway | Daughter | — | 9 | ~1931 |
| Margaret Conway | Daughter | — | 21 | ~1919 |
| Hazel Conway | Spouse | — | 43 | ~1897 |
| Robert Conway | Head | — | 46 | ~1894 |
Census Appearances
1920
Cook, Illinois
Daughter, age 1
Cook, Illinois · implied b. ~1919 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Conway |
| Given Name | Margaret J |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | none |
| 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 | Conway |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| 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 21
Cook-County, Illinois · implied b. ~1919 — 5 household members
| Surname | Conway |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Occupation | Calculator |
| Industry | Research Lab |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1400 |
| 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 Margaret Conway across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Robert Conway (~0.92 confidence) and father William Conway (~0.92 confidence) and mother Hazel Conway (~0.92 confidence) and mother Margaret Conway (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Robert Conway
b. ~1894
Source father
● Household
· direct · ~0.92
Father
William Conway
b. ~1886
Source father
● Household
· direct · ~0.92
Mother
Hazel Conway
b. ~1897
Source mother
● Household
· direct · ~0.92
Mother
Margaret Conway
b. ~1889
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Margaret Conway
Daughter · 1940 · age 21 · b. ~1919 · Illinois
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Sibling
Annette Conway
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Patricia Conway
Sibling · 1940 · age 17
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-t0627-00999-00332)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Harry Messner | 49 | Head | Carpenter | Illinois |
| 42 | Carrie Messner | 48 | Wife | Saleslady | Illinois |
| 43 | James Messner | 60 | Brother | Carpenter | Illinois |
| 44 | Josephine Fazio | 58 | Head | — | Italy |
| 45 | Marion Fazio | 33 | Son | Proprietor | Illinois |
| 46 | Carl Fazio | 27 | Son | Mech. Eng. | Illinois |
| 47 | May Fazio | 40 | Daughter | Stenographer | Illinois |
| 48 | James Fazio | 19 | Grandson | Typist | Illinois |
| 49 | James Moore | 60 | Head | — | Iowa |
| 50 | Lena Moore | 55 | Wife | — | Iowa |
| 51 | Charles Weener | 65 | Roomer | Dentist | Illinois |
| 52 | Alladin Valentine | 30 | Roomer | Foreman | Italy |
| 53 | Edward Barthel | 35 | Head | Merchant Tailor | Illinois |
| 54 | Mary A. Barthel | 39 | Wife | — | Hungary |
| 55 | Virginia Barthel | 18 | Daughter | — | Illinois |
| 56 | Marjorie Barthel | 17 | Daughter | — | Illinois |
| 57 | Harry Johnson | 40 | Head | — | Illinois |
| 58 | Isabel Johnson | 39 | Wife | — | Illinois |
| 59 | Donald Johnson | 17 | Son | — | Illinois |
| 60 | Marilyn Johnson | 15 | Daughter | — | Illinois |
| 61 | Robert Conway | 46 | Head | Foreman | Illinois |
| 62 | Hazel Conway | 43 | Wife | — | Illinois |
| 63 | Margaret Conway THIS PERSON | 21 | Daughter | Calculator | Illinois |
| 64 | Patricia Conway | 17 | Daughter | Clerical | Illinois |
| 65 | Annette Conway | 9 | Daughter | — | Illinois |
| 66 | Emil Dawn | 54 | Head | — | Sweden |
| 67 | John Dawn | 23 | Son | Clerk | Illinois |
| 68 | Herbert Dawn | 18 | Son | Polisher | Illinois |
| 69 | Oscar Borglind | 59 | Head | Handi-Man | Sweden |
| 70 | Clara Borglind | 57 | Wife | — | Sweden |
| 71 | Clara Borglind | 30 | Daughter | Biller | Illinois |
| 72 | Stanley Tolf | 46 | Head | Book-Keeper | Illinois |
| 73 | Jessie Tolf | 45 | Wife | — | Illinois |
| 74 | Lucille Tolf | 30 | Daughter | Book-Keeper | Illinois |
| 75 | Stanley Tolf | 16 | Son | — | Illinois |
| 76 | Michael Haschak | 35 | Head | Crane Operator | Pennsylvania |
| 77 | Bessie Haschak | 36 | Wife | Assembler | Germany |
| 78 | William Haschak | 16 | Son | — | Illinois |
| 79 | Bessie Haschak | 9 | Daughter | — | Illinois |
| 80 | Louis Winkless | 57 | Head | Baker | Germany |
Pedigree Summary
Margaret + 2 siblings
Gen 1 · 4 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)