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Mary Marshall — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Mary Marshall across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a spouse (b.~1878), then head of a 4-person household.
Age 62
b. ~1878
Female
Spouse
Born: Poland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Marshall |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 62 |
| Marital Status | Married |
| Birthplace | Poland |
| 1935 Residence (City) | CHICAGO CITY |
| 1935 Residence (County) | COOK |
| Naturalization Status | First papers filed |
| Additional Details | |
| Highest Grade | No 8 |
| 1935 Residence | Same House |
| Birth Country | Poland |
| Birthplace (normalized) | poland |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1878 |
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 Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Marshall | Daughter | — | 25 | ~1915 |
| Joseph Marshall | Head | — | 59 | ~1881 |
| Joseph Marshall | Son | — | 32 | ~1908 |
| Mary Marshall | Spouse | — | 62 | ~1878 |
Census Appearances
1920
Cook, Illinois
Spouse, age 42
Cook, Illinois · implied b. ~1878 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Marshal |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 42 |
| Marital Status | Married |
| Birthplace | Poland |
| Year of Immigration | 1898 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Poland |
| Mother's Birthplace | Poland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Polish |
| Birth Country | Poland |
| Birthplace (normalized) | poland |
1930
Cook, Illinois
Spouse, age 51
Cook, Illinois · implied b. ~1879 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Marshall |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | Poland |
| Naturalization Status | First papers filed |
| Year of Immigration | 1903 |
| Age at First Marriage | 22 |
| Father's Birthplace | Poland |
| Mother's Birthplace | Poland |
| Occupation | Dipper |
| Industry | Candy Co. |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | Polish |
| Veteran | No |
| Birth Country | Poland |
| Birthplace (normalized) | poland |
1940
Cook-County, Illinois
Spouse, age 62
Cook-County, Illinois · implied b. ~1878 — 4 household members
| Surname | Marshall |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 62 |
| Marital Status | Married |
| Birthplace | Poland |
| 1935 Residence (City) | CHICAGO CITY |
| 1935 Residence (County) | COOK |
| Naturalization Status | First papers filed |
| Highest Grade | No 8 |
| 1935 Residence | Same House |
| Birth Country | Poland |
| Birthplace (normalized) | poland |
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 Marshall across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Marshall
Spouse · 1940 · age 62 · b. ~1878 · Illinois
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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-t0627-00983-00358)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Edward Helmer | 0 | Grandson | — | Illinois |
| 42 | Joseph Baerson | 49 | Head | Laborer | Poland |
| 43 | Harriet Baerson | 41 | Wife | — | Illinois |
| 44 | Albert Baerson | 19 | Son | New Worker | Illinois |
| 45 | Bradley Baerson | 10 | Son | — | Illinois |
| 46 | Regina Twersky | 66 | Mother-in-law | — | Germany |
| 47 | Sophie Twersky | 27 | Sister-in-law | Audit Clerk | Illinois |
| 48 | A. Fred Twersky | 25 | Brother-in-law | — | Illinois |
| 49 | Elmer Twersky | 23 | Brother-in-law | Stock Room Clerk | Illinois |
| 50 | Frank Richman | 65 | Head | Deputy Clerk | Russia |
| 51 | Fannie Richman | 55 | Wife | — | Russia |
| 52 | Gertrude Richman | 14 | Daughter | — | Illinois |
| 53 | Harold Levy | 28 | Son-in-law | Relish Packer & Salesman | Illinois |
| 54 | Clara Levy | 26 | Daughter | Retail Candy Clerk | Russia |
| 55 | Joseph Marshall | 59 | Head | Janitor | Poland |
| 56 | Mary Marshall THIS PERSON | 62 | Wife | — | Poland |
| 57 | Joseph Marshall | 32 | Son | Leather Finisher | Illinois |
| 58 | Mary Marshall | 25 | Daughter | Stenographer | Illinois |
| 59 | George Alonas | 74 | Head | — | Lithuania |
| 60 | Mary Alonas | 63 | Wife | — | Lithuania |
| 61 | Lucille Alonas | 35 | Daughter | Bookkeeper | Illinois |
| 62 | Kay Alonas | 28 | Daughter | Draftsman | Illinois |
| 63 | Victor Alonas | 25 | Son | Torchman | Illinois |
| 64 | Ruth Alonas | 23 | Daughter | General Office | Illinois |
| 65 | Patricia Bowe | 32 | Daughter | Stenographer | Illinois |
| 66 | Barbara Bowe | 8 | Daughter | — | Illinois |
| 67 | Jacob Tobola | 46 | Head | Laborer | Poland |
| 68 | Victoria Tobola | 43 | Wife | Charwoman | Poland |
| 69 | Mary Tobola | 20 | Daughter | Coat Cleaner | Illinois |
| 70 | Walter Tobola | 18 | Son | Package Deliverer | Illinois |
| 71 | Anton Mikulin | 44 | Head | Hammersmith | Lithuania |
| 72 | Mary Mikulin | 42 | Wife | — | Poland |
| 73 | Lillian Mikulin | 22 | Daughter | Second Chef | Indiana |
| 74 | Leonard Mikulin | 20 | Son | Porter | Indiana |
| 75 | Albert Mikulin | 18 | Son | — | Indiana |
| 76 | Walter Mikulin | 12 | Son | — | Indiana |
| 77 | Anthony Mikulin | 10 | Son | — | Indiana |
| 78 | Mary J. Mikulin | 8 | Daughter | — | Illinois |
| 79 | Joseph Pocic | 46 | Head | Assembler | Poland |
| 80 | Kathryn Pocic | 45 | Wife | — | Poland |
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)