MF
Mary Ford — 1940 US Census Record
Model Tree available1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Mary Ford across the 1910, 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed), with identified parents Timothy & Frank — first a spouse (b.~1903), then head of a 4-person household.
Age 37
b. ~1903
Female
Spouse
Born: Illinois
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Ford |
| Given Name | Mary A. |
| Relationship to Head | wife |
| Sex | F |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Class of Worker | 0 |
| Hours Worked | 0 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1903 |
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 |
|---|---|---|---|---|
| Geraldine Ford | Daughter | — | 8 | ~1932 |
| Frank Ford | Head | — | 44 | ~1896 |
| James Ford | Son | — | 14 | ~1926 |
| Mary Ford | Spouse | — | 37 | ~1903 |
Census Appearances
1910
Cook, Illinois
Daughter, age 4
Cook, Illinois · implied b. ~1906 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Ford |
| Given Name | Marguerite |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1920
Cook, Illinois
Daughter, age 15
Cook, Illinois · implied b. ~1905 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Ford |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Illinois |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Cook, Illinois
Daughter, age 26
Cook, Illinois · implied b. ~1904 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Ford |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Illinois |
| Occupation | Typist |
| Industry | Railroad |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Spouse, age 37
Cook-County, Illinois · implied b. ~1903 — 4 household members
| Surname | Ford |
| Given Name | Mary A. |
| Relationship to Head | wife |
| Sex | F |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Class of Worker | 0 |
| Hours Worked | 0 |
| Highest Grade | H 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 Ford across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Timothy Ford (~0.92 confidence) and father Frank Ford (~0.92 confidence) and mother Margaret Ford (~0.92 confidence) and mother Bell Ford (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Timothy Ford
b. ~1865
Source father
● Household
· direct · ~0.92
Father
Frank Ford
b. ~1870
Source father
● Household
· direct · ~0.92
Mother
Margaret Ford
b. ~1873
Source mother
● Household
· direct · ~0.92
Mother
Bell Ford
b. ~1881
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Ford
Spouse · 1940 · age 37 · b. ~1903 · Illinois
★ You are viewing this record
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
37 people indexed on this census page (nara:1940:m-t0627-00959-00007)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Donald Considine | 15 | son | — | Illinois |
| 2 | Robert Considine | 12 | son | — | Illinois |
| 3 | Aileen Considine | 10 | daughter | — | Illinois |
| 4 | Margaret Considine | 8 | daughter | — | Illinois |
| 5 | Richard Considine | 5 | son | — | Illinois |
| 6 | Frank Ford | 44 | head | Owner Of Laundry | Illinois |
| 7 | Mary A. Ford THIS PERSON | 37 | wife | — | Illinois |
| 8 | James Ford | 14 | son | — | Illinois |
| 9 | Geraldine Ford | 8 | daughter | — | Illinois |
| 10 | Lawrence Swanson | 36 | head | Operator | Illinois |
| 11 | Elizabeth Swanson | 33 | wife | — | Illinois |
| 12 | Betty Ann Swanson | 3 | daughter | — | Illinois |
| 13 | Edward Hawlihan | 37 | head | Sales Manager | Illinois |
| 14 | Lucille Hawlihan | 35 | wife | — | Illinois |
| 15 | Patricia Hawlihan | 11 | daughter | — | Illinois |
| 19 | Charles Trout | 36 | head | Foreman | Illinois |
| 20 | Eva Trout | 32 | wife | — | Illinois |
| 21 | John D. Vanderan | 53 | head | Managing Salesman | New York |
| 22 | Mary C. Vanderan | 41 | wife | — | New York |
| 23 | John B. Vanderan | 13 | son | — | New York |
| 24 | Gerard B. Vanderan | 7 | son | — | Illinois |
| 25 | Daniel Vanderan | 3 | son | — | Illinois |
| 26 | Edward Boylan | 20 | nephew | Office Boy | New York |
| 27 | Cecile Shelfman | 34 | head | — | Illinois |
| 28 | David Shelfman | 10 | son | — | Illinois |
| 29 | Edward Langan | 52 | head | Cook | Illinois |
| 30 | Gertrude Langan | 51 | wife | — | Illinois |
| 31 | William Langan | 20 | son | Stock Boy | Illinois |
| 32 | Eugene Langan | 17 | son | Gas Attendant | Illinois |
| 33 | Robert Langan | 15 | son | — | Illinois |
| 34 | Irene Langan | 14 | daughter | — | Illinois |
| 35 | Justine Langan | 12 | daughter | — | Illinois |
| 36 | Edward Panger | 66 | head | Motorman | Illinois |
| 37 | Edna Lewis | 36 | daughter | — | Illinois |
| 38 | Louise Lewis | 16 | grandchild | — | Illinois |
| 39 | Ted Lewis | 12 | grandchild | — | Illinois |
| 40 | Son Walter | None | M | Rail Car Shop | — |
Pedigree Summary
Mary
Gen 1 · 4 parents
~0.92
Max depth 4 (1900–1950 window)
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)