MC
Mabel Cook — 1940 US Census Record
Model Tree available1940 United States Federal Census · Whiteside-County, Illinois
Our Model Tree links this Mabel Cook across the 1920, 1930 and 1940 US Censuses in Whiteside-County, Illinois (XGBoost, ~Confirmed), with identified parents Fred & L — first a daughter (b.~1915), then head of a 3-person household.
Age 25
b. ~1915
Female
Daughter
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Whiteside-County, Illinois |
| Surname | Cook |
| Given Name | Mabel |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Sterling City |
| 1935 Residence (County) | Whiteside |
| Additional Details | |
| Occupation | Saleswoman |
| Industry | Grocery |
| Class of Worker | NP |
| Hours Worked | 40 |
| Income (1939) | 298 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same House |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Saleswoman |
| Township / Ward | Sterling City |
| Est. Birth Year | ~1915 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mabel | Age | Birth yr |
|---|---|---|---|---|
| Maud Cook | Spouse | — | 59 | ~1881 |
| Mabel Cook | Daughter | — | 25 | ~1915 |
| Lee Cook | Head | — | 59 | ~1881 |
Census Appearances
1920
Whiteside, Illinois
Daughter, age 4
Whiteside, Illinois · implied b. ~1916 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cook |
| Given Name | Mabel |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | none |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Whiteside, Illinois
Daughter, age 14
Whiteside, Illinois · implied b. ~1916 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cook |
| Given Name | Mabel S |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Whiteside-County, Illinois
Daughter, age 25
Whiteside-County, Illinois · implied b. ~1915 — 3 household members
| Surname | Cook |
| Given Name | Mabel |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Sterling City |
| 1935 Residence (County) | Whiteside |
| Occupation | Saleswoman |
| Industry | Grocery |
| Class of Worker | NP |
| Hours Worked | 40 |
| Income (1939) | 298 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same House |
| 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 Mabel Cook across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Fred Cook (~0.92 confidence) and father L Cook (~0.92 confidence) and father Lee Cook (~0.92 confidence) and mother Maud Cook (~0.92 confidence) and mother Maude Cook (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Fred Cook
b. ~1881
Source father
● Household
· direct · ~0.92
Father
L Cook
b. ~1883
Source father
● Household
· direct · ~0.92
Father
Lee Cook
b. ~1881
Source father
● Household
· direct · ~0.92
Mother
Maud Cook
b. ~1882
Source mother
● Household
· direct · ~0.92
Mother
Maude Cook
b. ~1883
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mabel Cook
Daughter · 1940 · age 25 · b. ~1915 · 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 — Whiteside-County, Illinois
Open full size
1940 US Federal Census — Whiteside-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00906-00368)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | George M. Lefevre | 67 | Head | Assembler | Pennsylvania |
| 2 | Barbara Lefevre | 63 | Wife | — | Illinois |
| 3 | George W. Lefevre | 31 | Son | Waiter | Illinois |
| 4 | Herman King | 24 | Head | Laborer | Missouri |
| 5 | Edna King | 26 | Wife | — | Illinois |
| 6 | Wesley King | 1 | Son | — | Illinois |
| 7 | Mary Mctara | 54 | Head | — | New York |
| 8 | Helen Mctara | 29 | Daughter | Stenographer | Wisconsin |
| 9 | Agnes Mctara | 25 | Daughter | Telegraph Operator | Illinois |
| 10 | Mary Mctara | 18 | Daughter | — | Illinois |
| 11 | O. A. Shearburn | 33 | Head | Roll Turner | Illinois |
| 12 | Ruth Shearburn | 34 | Wife | — | Illinois |
| 13 | Gloria Jean Shearburn | 10 | Daughter | — | Illinois |
| 14 | Lillie Warfield | 65 | Head | — | Illinois |
| 15 | Ray Robison | 27 | Son-in-law | Laborer | Illinois |
| 16 | Marian Robison | 26 | Daughter | — | Illinois |
| 17 | Ray Robison | 7 | Grandson | — | Illinois |
| 18 | Floyd Fleener | 22 | Head | Interior Decorator | Illinois |
| 19 | Laverne Fleener | 19 | Wife | — | Illinois |
| 20 | Chas. A. Bryan | 66 | Head | — | Illinois |
| 21 | Alice W. Bryan | 65 | Wife | — | Illinois |
| 22 | Lee Cook | 59 | Head | Grocer Prop. | Illinois |
| 23 | Maud Cook | 59 | Wife | Saleswoman | Illinois |
| 24 | Mabel Cook THIS PERSON | 25 | Daughter | Saleswoman | Illinois |
| 25 | Mary A. Harris | 60 | Head | — | Illinois |
| 26 | Earl K. Harris | 33 | Son | Pressman | Illinois |
| 27 | Donald F. Harris | 30 | Son | Electrician | Illinois |
| 28 | Chester Farnham | 26 | Head | Laborer | Illinois |
| 29 | Flora Farnham | 29 | Wife | — | Illinois |
| 30 | Chas. E. Bennett | 76 | Head | — | Illinois |
| 31 | Elma F. Bennett | 74 | Wife | — | Iowa |
| 32 | Frank Graham | 65 | Head | Painter | Illinois |
| 33 | Lydia Graham | 62 | Wife | — | Illinois |
| 34 | Freemont R. Drynan | 64 | Head | Press Operator | Illinois |
| 35 | Elsa A. Drynan | 61 | Wife | Laundry Work | Illinois |
| 36 | William Keebler | 49 | Head | Carpenter | Illinois |
| 37 | Grace Keebler | 50 | Wife | — | Illinois |
| 38 | Chas. Schick | 25 | Head | Truck Driver | Illinois |
| 39 | Elizabeth Schick | 24 | Wife | — | Illinois |
| 40 | Theodore R. Schick | 5 | Son | — | Illinois |
Pedigree Summary
Mabel
Gen 1 · 5 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)