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Mary Whitney — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Mary Whitney across the 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a spouse (b.~1889), then head of a 6-person household.
Age 51
b. ~1889
Female
Spouse
Born: Illinois
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Whitney |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Pell Lake |
| 1935 Residence (County) | Walworth |
| Additional Details | |
| Highest Grade | 8 |
| 1935 Residence | Wisconsin |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1889 |
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 |
|---|---|---|---|---|
| David Whitney | Son | — | 7 | ~1933 |
| Mary Whitney | Spouse | — | 51 | ~1889 |
| Marie Whitney | Daughter | — | 22 | ~1918 |
| Delores Whitney | Daughter | — | 10 | ~1930 |
| James Whitney | Son | — | 20 | ~1920 |
| Max Whitney | Head | — | 52 | ~1888 |
Census Appearances
1930
Cook, Illinois
Other, age 40
Cook, Illinois · implied b. ~1890 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Whitney |
| Given Name | May E. |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Illinois |
| Age at First Marriage | 20 |
| Father's Birthplace | England |
| Mother's Birthplace | Illinois |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Spouse, age 51
Cook-County, Illinois · implied b. ~1889 — 6 household members
| Surname | Whitney |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Pell Lake |
| 1935 Residence (County) | Walworth |
| Highest Grade | 8 |
| 1935 Residence | Wisconsin |
| 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 Whitney across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Whitney
Spouse · 1940 · age 51 · b. ~1889 · 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-t0627-00984-00566)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Richard Whitney | 4 | Son | — | Illinois |
| 2 | Mary Ann Whitney | 2 | Daughter | — | Illinois |
| 3 | Max Whitney | 52 | Head | Painter | Nebraska |
| 4 | Mary Whitney THIS PERSON | 51 | Wife | — | Illinois |
| 5 | Marie Whitney | 22 | Daughter | Sales Girl | Illinois |
| 6 | James Whitney | 20 | Son | Apprentice | Nebraska |
| 7 | Delores Whitney | 10 | Daughter | — | Illinois |
| 8 | David Whitney | 7 | Son | — | Wisconsin |
| 9 | Michael Mcgowan | 54 | Head | Wood Pattern | Scotland |
| 10 | Bridget Mcgowan | 48 | Wife | — | Irish Free State |
| 11 | Mary Mcgowan | 17 | Daughter | — | Illinois |
| 12 | Michael Mcgowan | 15 | Son | — | Illinois |
| 13 | Anastasia Mcgowan | 11 | Daughter | — | Illinois |
| 14 | Anna Lucanasky | 67 | Head | — | Austria |
| 15 | Carl Kovagovich | 40 | Son | Punch Press | Austria |
| 16 | Bernard Jachim | 30 | Head | Manager | Illinois |
| 17 | Josephine Jachim | 29 | Wife | — | Illinois |
| 18 | Bernard Jachim | 4 | Son | — | Illinois |
| 19 | Mary Ann Jachim | 2 | Daughter | — | Illinois |
| 20 | Elizabeth Busko | 50 | Head | — | Czechoslovakia |
| 21 | Julius Busko | 25 | Son | Drill Press | Czechoslovakia |
| 22 | Ann Busko | 23 | Daughter | Sewing Machine | Czechoslovakia |
| 23 | Bertha Mach | 73 | Head | — | Germany |
| 24 | Albert Mach | 45 | Son | Auto Mechanic | Illinois |
| 25 | Clara Mach | 37 | Daughter | — | Illinois |
| 26 | Muriel Mach | 16 | Daughter | Hostess | Illinois |
| 27 | Gloria Mach | 13 | Granddaughter | — | Illinois |
| 28 | Johanna Olsen | 85 | Head | — | Denmark |
| 29 | Dagmar Olsen | 50 | Daughter | Stenographer | Illinois |
| 30 | Agnes Olsen | 47 | Daughter | Broker | Illinois |
| 31 | Clarence Olsen | 39 | Son | Clerk | Illinois |
| 32 | Elsie Holm | 77 | Head | — | Denmark |
| 33 | Holger Jensen | 53 | Son-in-law | Assembler | Denmark |
| 34 | Minnie Jensen | 50 | Daughter | — | Illinois |
| 35 | Carl Formento | 27 | Head | Dispatcher | Illinois |
| 36 | Margaret Formento | 24 | Wife | — | Illinois |
| 37 | Michael Formento | 5 | Son | — | Illinois |
| 38 | Carl Formento | 4 | Son | — | Illinois |
| 39 | Martin Formento | 0 | Son | — | Illinois |
| 40 | Vito Panarello | 49 | Head | Electrician | Italy |
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)