MR
Mary Read — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Mary Read across the 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a daughter (b.~1930), then head of a 6-person household.
Age 10
b. ~1930
Female
Daughter
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Read |
| Given Name | Mary Beth |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Industry | 0 |
| Highest Grade | 4 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Chicago |
| Est. Birth Year | ~1930 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| James Read | Son | — | 11 | ~1929 |
| Gladys Read | Spouse | — | 32 | ~1908 |
| Denise Read | Daughter | — | 2 | ~1938 |
| John Read | Head | — | 35 | ~1905 |
| John Read | Son | — | 4 | ~1936 |
| Mary Read | Daughter | — | 10 | ~1930 |
Census Appearances
1930
Cook, Illinois
Daughter, age
Cook, Illinois · implied b. ~1930 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Read |
| Given Name | Mary Beth |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Daughter, age 10
Cook-County, Illinois · implied b. ~1930 — 6 household members
| Surname | Read |
| Given Name | Mary Beth |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Industry | 0 |
| Highest Grade | 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 Mary Read across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Read
Daughter · 1940 · age 10 · b. ~1930 · Illinois
★ You are viewing this record
Sibling
Denise Read
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Read
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Read
Sibling · 1940 · age 11
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-t0627-01023-00203)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Bertrand Hauswirth | 27 | Son | Clerk | Illinois |
| 42 | Virginia Hauswirth | 22 | Daughter | Typist | Illinois |
| 43 | Geraldyne Hauswirth | 17 | Daughter | — | Illinois |
| 44 | Gerald Hauswirth | 17 | Son | — | Illinois |
| 45 | Robert Hauswirth | 14 | Son | — | Illinois |
| 46 | Betty Hauswirth | 12 | Son | — | Illinois |
| 47 | Truman Lowry | 59 | Head | Book Keeper | Illinois |
| 48 | Sybel Lowry | 62 | Sister | — | Illinois |
| 49 | Jacqueline Lowry | 20 | Daughter | Typist | Illinois |
| 50 | Cordelia Lowry | 22 | Daughter | — | Illinois |
| 51 | John H. Stacker | 39 | Head | Salesman | Germany |
| 52 | Martha Stacker | 40 | Wife | — | Illinois |
| 53 | Joan Stacker | 12 | Daughter | — | Illinois |
| 54 | Christian Reinhard | 61 | Head | — | Illinois |
| 55 | Elizabeth Reinhard | 90 | Mother | — | Germany |
| 56 | Edward Rutt | 37 | Head | Painter | Illinois |
| 57 | Catherine Rutt | 36 | Wife | — | Illinois |
| 58 | Donald Rutt | 10 | Son | — | Illinois |
| 59 | Edward Rutt | 8 | Son | — | Illinois |
| 60 | Robert Rutt | 3 | Son | — | Illinois |
| 61 | Raymond Jarkins | 10 | Lodger | — | Illinois |
| 62 | Martin Leeson | 10 | Lodger | — | Illinois |
| 63 | Ben Arvidson | 39 | Head | Carpenter | Sweden |
| 64 | Laurine Arvidson | 34 | Wife | — | Illinois |
| 65 | Donald Arvidson | 12 | Son | — | Illinois |
| 66 | Marlene Arvidson | 3 | Daughter | — | Illinois |
| 67 | Carol Arvidson | 3 | Son | — | Illinois |
| 68 | Arthur Haas | 34 | Head | Mechanic | Illinois |
| 69 | Alma Haas | 33 | Wife | — | Illinois |
| 70 | Christian Haas | 65 | Head | — | Germany |
| 71 | Emma Haas | 58 | Wife | — | Germany |
| 72 | Joseph M. Collorsky | 62 | Head | Salesman | Illinois |
| 73 | Mary B. Collorsky | 57 | Wife | — | Illinois |
| 74 | Joseph J. Collorsky | 24 | Son | Salesman | Illinois |
| 75 | John Read | 35 | Head | Editor | Illinois |
| 76 | Gladys G. Read | 32 | Wife | — | Illinois |
| 77 | James Read | 11 | Son | — | Illinois |
| 78 | Mary Beth Read THIS PERSON | 10 | Daughter | — | Illinois |
| 79 | John Read | 4 | Son | — | Illinois |
| 80 | Denise Read | 2 | Daughter | — | 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)