MS
Mary Sawyer — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Mary Sawyer across the 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a spouse (b.~1883), then head of a 6-person household.
Age 57
b. ~1883
Female
Spouse
Born: England
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Sawyer |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 57 |
| Marital Status | Married |
| Birthplace | England |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Naturalization Status | Naturalized |
| Additional Details | |
| Highest Grade | No 8 |
| 1935 Residence | Same House |
| Birth Country | England |
| Birthplace (normalized) | england |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1883 |
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 |
|---|---|---|---|---|
| Ralph Sawyer | Son | — | 21 | ~1919 |
| Norman Sawyer | Son | — | 24 | ~1916 |
| Harold Sawyer | Son | — | 14 | ~1926 |
| Mary Sawyer | Spouse | — | 57 | ~1883 |
| William Sawyer | Head | — | 61 | ~1879 |
| Henry Sawyer | Son | — | 27 | ~1913 |
Census Appearances
1930
Cook, Illinois
Spouse, age 46
Cook, Illinois · implied b. ~1884 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sawyer |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | England |
| Naturalization Status | Naturalized |
| Year of Immigration | 1910 |
| Age at First Marriage | 18 |
| Father's Birthplace | England |
| Mother's Birthplace | England |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Birth Country | England |
| Birthplace (normalized) | england |
1940
Cook-County, Illinois
Spouse, age 57
Cook-County, Illinois · implied b. ~1883 — 6 household members
| Surname | Sawyer |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 57 |
| Marital Status | Married |
| Birthplace | England |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Naturalization Status | Naturalized |
| Highest Grade | No 8 |
| 1935 Residence | Same House |
| Birth Country | England |
| Birthplace (normalized) | england |
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 Sawyer across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Sawyer
Spouse · 1940 · age 57 · b. ~1883 · 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-t0627-00947-00861)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | David C. Levine | 27 | Son | Writer | Illinois |
| 2 | Helen E. Levine | 22 | Daughter | Teacher | Illinois |
| 3 | Joseph Zitomillar | 57 | Head | Repairer | Italy |
| 4 | Sarah Zitomillar | 55 | Wife | — | France |
| 5 | Virginia Zitomillar | 29 | Daughter | — | Illinois |
| 6 | Antoinette Zitomillar | 27 | Daughter | Asst Cashier | Illinois |
| 7 | Lucille Zitomillar | 23 | Daughter | — | Illinois |
| 8 | Edgar J. Osborne | 54 | Head | Switchman | Pennsylvania |
| 9 | Lillian M. Osborne | 52 | Wife | Comptometer | Wisconsin |
| 10 | Florence Menzel | 60 | Lodger | Housework | Illinois |
| 11 | Lillian Owens | 83 | Mother-in-law | — | Wisconsin |
| 12 | Leon Boisvert | 57 | Head | Draftsman | Illinois |
| 13 | Eva Boisvert | 50 | Wife | — | Illinois |
| 14 | Clarence Swartz | 52 | Head | Mail Dispatcher | Illinois |
| 15 | Jannie Swartz | 48 | Wife | Editor | Illinois |
| 16 | Raymond Swartz | 20 | Son | Office Boy | Illinois |
| 17 | Leila Swartz | 16 | Daughter | — | Illinois |
| 18 | Carol Swartz | 10 | Daughter | — | Illinois |
| 19 | William Sawyer | 61 | Head | Blacksmith | England |
| 20 | Mary Sawyer THIS PERSON | 57 | Wife | — | England |
| 21 | Henry Sawyer | 27 | Son | Motorman | Illinois |
| 22 | Norman Sawyer | 24 | Son | Laborer | Illinois |
| 23 | Ralph Sawyer | 21 | Son | Apprentice | Illinois |
| 24 | Harold Sawyer | 14 | Son | — | Illinois |
| 25 | William F. Smith | 65 | Head | Clerk | Illinois |
| 26 | Esther Smith | 64 | Wife | — | Sweden |
| 27 | John Zajicek | 11 | Grandson | — | Illinois |
| 28 | Phil A. Kostocka | 59 | Head | Draftsman | Iowa |
| 29 | Anna L. Kostocka | 53 | Wife | — | Iowa |
| 30 | Mary Jane Kostocka | 23 | Daughter | Stenographer | Illinois |
| 31 | Margaret Kostocka | 18 | Daughter | Clerical | Illinois |
| 32 | Florian Skore | 28 | Son-in-law | Contractor | Indiana |
| 33 | Loretta Skore | 22 | Daughter | Stenographer | Illinois |
| 34 | George H. Edwards | 55 | Head | Sales Milk | Canada-Eng |
| 35 | Caroline Edwards | 44 | Wife | Dictaphone Opr | Illinois |
| 36 | John Reehler | 77 | Father-in-law | — | Scotland |
| 37 | Rushie Massing | 58 | Head | — | Tennessee |
| 38 | Louis Massing | 40 | Son | Clerical | Tennessee |
| 39 | Neva Carter | 25 | Lodger | Machine Operator | Iowa |
| 40 | Paul Kalmanek | 56 | Head | Machinist | Hungary |
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)