MC
Margaret Conway — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Margaret Conway across the 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a daughter (b.~1921), then head of a 9-person household.
Age 19
b. ~1921
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 | 19 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Occupation | messenger |
| Industry | Dept Store |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 220 |
| Highest Grade | H 3 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Messenger |
| Township / Ward | Chicago |
| Est. Birth Year | ~1921 |
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 Margaret | Age | Birth yr |
|---|---|---|---|---|
| Clarence Conway | Head | — | 45 | ~1895 |
| Daisy Conway | Spouse | — | 46 | ~1894 |
| Clarence Conway | Son | — | 24 | ~1916 |
| Dorothy Conway | Daughter | — | 6 | ~1934 |
| Ethel Conway | Daughter | — | 21 | ~1919 |
| Margaret Conway | Daughter | — | 19 | ~1921 |
| Patrick Conway | Son | — | 22 | ~1918 |
| Henrietta Conway | Daughter | — | 16 | ~1924 |
| Eileen Conway | Daughter | — | 14 | ~1926 |
Census Appearances
1930
Cook, Illinois
Daughter, age 9
Cook, Illinois · implied b. ~1921 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Conway |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Illinois |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Daughter, age 19
Cook-County, Illinois · implied b. ~1921 — 9 household members
| Surname | Conway |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Occupation | messenger |
| Industry | Dept Store |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 220 |
| Highest Grade | H 3 |
| 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 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Margaret Conway
Daughter · 1940 · age 19 · b. ~1921 · Illinois
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Sibling
Clarence Conway
Sibling · 1940 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Henrietta Conway
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Patrick Conway
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Conway
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ethel Conway
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Eileen Conway
Sibling · 1940 · age 14
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-t0627-00981-00384)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Elizabeth Wojciechowski | 23 | Daughter | Clerk | Illinois |
| 42 | Raymond Wojciechowski | 13 | Son | — | Illinois |
| 43 | Bernice Wojciechowski | 10 | Daughter | — | Illinois |
| 44 | Theodore Wojciechowski | 8 | Son | — | Illinois |
| 45 | Elaine Wojciechowski | 6 | Daughter | — | Illinois |
| 46 | Victoria Wojciechowski | 82 | mother | — | Poland |
| 47 | John Mery | 59 | Head | Clerk | Pennsylvania |
| 48 | Christine Mery | 51 | Wife | — | Illinois |
| 49 | Bernice Mery | 23 | Daughter | Clerk | Illinois |
| 50 | Clarence Conway | 45 | Head | Switchman | Pennsylvania |
| 51 | Daisy Conway | 46 | Wife | — | Illinois |
| 52 | Clarence Jr. Conway | 24 | Son | Clerk | Illinois |
| 53 | Patrick Conway | 22 | Son | Factory Worker | Illinois |
| 54 | Ethel Conway | 21 | Daughter | Laborer | Illinois |
| 55 | Margaret Conway THIS PERSON | 19 | Daughter | Messenger | Illinois |
| 56 | Henrietta Conway | 16 | Daughter | — | Illinois |
| 57 | Eileen Conway | 14 | Daughter | — | Illinois |
| 58 | Dorothy Jane Conway | 6 | Daughter | — | Illinois |
| 59 | John Kovacic | 59 | Head | Helper | Slovakia |
| 60 | Mary Kovacic | 57 | Wife | — | Slovakia |
| 61 | Stephen Kovacic | 33 | Son | Pattern Maker Apprentice | Slovakia |
| 62 | Frank Kovacic | 19 | Son | Clerk | Illinois |
| 63 | Mildred Kovacic | 15 | Daughter | New Worker | Illinois |
| 64 | Edward Kovacic | 13 | Son | — | Illinois |
| 65 | John Belka | 47 | Head | Repairman | Slovakia |
| 66 | Mary Belka | 38 | Wife | — | Slovakia |
| 67 | Helen Belka | 18 | Daughter | Stenographer | Illinois |
| 68 | Albert Belka | 14 | Son | — | Illinois |
| 69 | Raymond Belka | 12 | Son | — | Illinois |
| 70 | Joseph Kutlak | 57 | Head | Blacksmith | Slovakia |
| 71 | Anna Kutlak | 50 | Wife | — | Slovakia |
| 72 | Paul Benceres | 52 | Head | Blacksmith | Hungary |
| 73 | Katherine Benceres | 44 | Wife | — | Hungary |
| 74 | Edward Rozan | 47 | Head | Motorman | Illinois |
| 75 | Lillian Rozan | 44 | Wife | — | Illinois |
| 76 | Frank Cwiklinski | 50 | Head | Conductor | Illinois |
| 77 | Claire Cwiklinski | 49 | Wife | — | Illinois |
| 78 | Bernice Cwiklinski | 18 | Daughter | Laborer | Illinois |
| 79 | Dorothy Cwiklinski | 15 | Daughter | — | Illinois |
| 80 | James Cwiklinski | 12 | Son | — | Illinois |
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)