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Mary Farmer — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Mary Farmer across the 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a daughter (b.~1933), then head of a 10-person household.
Age 7
b. ~1933
Female
Daughter
Born: ILLINOIS
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | FARMER |
| Given Name | MARY KATE |
| Relationship to Head | DAUGHTER |
| Sex | F |
| Color / Race | Black |
| Age | 7 |
| Marital Status | Single |
| Birthplace | ILLINOIS |
| 1935 Residence (City) | CHICAGO CITY |
| 1935 Residence (County) | COOK |
| Additional Details | |
| Highest Grade | No 1 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1933 |
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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Louise Farmer | Daughter | — | 4 | ~1936 |
| Augusta Farmer | Daughter | — | 16 | ~1924 |
| Mary Farmer | Daughter | — | 7 | ~1933 |
| Edward Farmer | Son | — | 12 | ~1928 |
| Lloyd Farmer | Son | — | 9 | ~1931 |
| Neveamay Farmer | Daughter | — | 14 | ~1926 |
| Oneva Farmer | Daughter | — | 14 | ~1926 |
| Louise Farmer | Spouse | — | 38 | ~1902 |
| William Jackson | Other | — | 54 | ~1886 |
| Chaney Farmer | Head | — | 47 | ~1893 |
Census Appearances
1930
Cook, Illinois
Daughter, age 1
Cook, Illinois · implied b. ~1929 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Farmer |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Arkansas |
| Mother's Birthplace | Arkansas |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Daughter, age 7
Cook-County, Illinois · implied b. ~1933 — 10 household members
| Surname | FARMER |
| Given Name | MARY KATE |
| Relationship to Head | DAUGHTER |
| Sex | F |
| Color / Race | Black |
| Age | 7 |
| Marital Status | Single |
| Birthplace | ILLINOIS |
| 1935 Residence (City) | CHICAGO CITY |
| 1935 Residence (County) | COOK |
| Highest Grade | No 1 |
| 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 Farmer across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Farmer
Daughter · 1940 · age 7 · b. ~1933 · Illinois
★ You are viewing this record
Sibling
Louise Farmer
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Neveamay Farmer
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lloyd Farmer
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edward Farmer
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Augusta Farmer
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Oneva Farmer
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-t0627-00962-00116)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Charles Dorf | 44 | HEAD | Printer | RUSSIA |
| 2 | Sophie Dorf | 54 | WIFE | — | RUSSIA |
| 3 | Manuel Cano | 45 | HEAD | Iron Pourer | MEXICO |
| 4 | Jennie Cano | 42 | WIFE | — | MEXICO |
| 5 | Gloria Cano | 17 | DAUGHTER | — | MEXICO |
| 6 | Henry Cano | 15 | SON | — | ILLINOIS |
| 7 | Lupe Cano | 12 | DAUGHTER | — | ILLINOIS |
| 8 | Angeline Cano | 11 | DAUGHTER | — | ILLINOIS |
| 9 | Joseph Cano | 10 | SON | — | ILLINOIS |
| 10 | Liberato Cano | 8 | SON | — | ILLINOIS |
| 11 | Conception Cano | 6 | SON | — | ILLINOIS |
| 12 | Mary Cano | 5 | DAUGHTER | — | ILLINOIS |
| 13 | Dolores Cano | 2 | DAUGHTER | — | ILLINOIS |
| 14 | Harry Roth | 57 | HEAD | Proprietor | ROUMANIA |
| 15 | Jennie Roth | 53 | WIFE | — | AUSTRIA |
| 16 | Alex Roth | 26 | SON | Suit Presser | ILLINOIS |
| 17 | Gustave Roth | 19 | SON | New Worker | ILLINOIS |
| 18 | Tom Fiemont | 42 | HEAD | Laborer | ITALY |
| 19 | Jennie Fiemont | 27 | WIFE | — | ITALY |
| 20 | Mary Fiemont | 8 | DAUGHTER | — | ILLINOIS |
| 21 | Nick Ciaglia | 5 | STEP SON | — | ILLINOIS |
| 22 | Lucille Ciaglia | 3 | STEP DAUGHTER | — | ILLINOIS |
| 23 | Rose Ciaglia | 2 | STEP DAUGHTER | — | ILLINOIS |
| 24 | Samuel Orlando | 43 | HEAD | Proprietor | ILLINOIS |
| 25 | Anna Orlando | 37 | WIFE | — | ILLINOIS |
| 26 | Samuel Jr Orlando | 13 | SON | — | ILLINOIS |
| 27 | Frank Orlando | 11 | SON | — | ILLINOIS |
| 28 | Marlene Orlando | 9 | DAUGHTER | — | ILLINOIS |
| 29 | James Orlando | 6 | SON | — | ILLINOIS |
| 30 | John Orlando | 0 | SON | — | ILLINOIS |
| 31 | Chaney Farmer | 47 | HEAD | Proprietor | TENNESSEE |
| 32 | Louise Farmer | 38 | WIFE | — | ILLINOIS |
| 33 | Augusta Farmer | 16 | DAUGHTER | — | ILLINOIS |
| 34 | Oneva Farmer | 14 | DAUGHTER | — | ILLINOIS |
| 35 | Neveamay Farmer | 14 | DAUGHTER | — | ILLINOIS |
| 36 | Edward Farmer | 12 | SON | — | ILLINOIS |
| 37 | Lloyd Farmer | 9 | SON | — | ILLINOIS |
| 38 | Mary Kate Farmer THIS PERSON | 7 | DAUGHTER | — | ILLINOIS |
| 39 | Louise Farmer | 4 | DAUGHTER | — | ILLINOIS |
| 40 | William Jackson | 54 | LODGER | Proprietor | TENNESSEE |
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)