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Florence Cook — 1940 US Census Record
Model Tree available1940 United States Federal Census · Lee-County, Illinois
Our Model Tree links this Florence Cook across the 1920, 1930 and 1940 US Censuses in Lee-County, Illinois (XGBoost, ~Confirmed), with identified parents Morris & Morris — first a daughter (b.~1909), then head of a 3-person household.
Age 31
b. ~1909
Female
Daughter
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Lee-County, Illinois |
| Surname | Cook |
| Given Name | Florence |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 31 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | STEWARD |
| 1935 Residence (County) | LEE |
| Additional Details | |
| Occupation | Teacher |
| Industry | High-School |
| Class of Worker | GW |
| Hours Worked | 40 |
| Income (1939) | 1800 |
| Highest Grade | C-4 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Teacher |
| Township / Ward | Steward |
| Est. Birth Year | ~1909 |
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 Florence | Age | Birth yr |
|---|---|---|---|---|
| Florence Cook | Daughter | — | 31 | ~1909 |
| Morris Cook | Head | — | 75 | ~1865 |
| Gertrude Cook | Spouse | — | 70 | ~1870 |
Census Appearances
1920
Lee, Illinois
Daughter, age 11
Lee, Illinois · implied b. ~1909 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cook |
| Given Name | Florence |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Lee, Illinois
Daughter, age 21
Lee, Illinois · implied b. ~1909 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cook |
| Given Name | Florence A. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| 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
Lee-County, Illinois
Daughter, age 31
Lee-County, Illinois · implied b. ~1909 — 3 household members
| Surname | Cook |
| Given Name | Florence |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 31 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | STEWARD |
| 1935 Residence (County) | LEE |
| Occupation | Teacher |
| Industry | High-School |
| Class of Worker | GW |
| Hours Worked | 40 |
| Income (1939) | 1800 |
| Highest Grade | C-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 Florence Cook across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Morris Cook (~0.92 confidence) and father Morris Cook (~0.92 confidence) and father Morris Cook (~0.92 confidence) and mother Gertrude Cook (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Morris Cook
b. ~1865
Source father
● Household
· direct · ~0.92
Father
Morris Cook
b. ~1866
Source father
● Household
· direct · ~0.92
Father
Morris Cook
b. ~1865
Source father
● Household
· direct · ~0.92
Mother
Gertrude Cook
b. ~1870
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Florence Cook
Daughter · 1940 · age 31 · b. ~1909 · 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 — Lee-County, Illinois
Open full size
1940 US Federal Census — Lee-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00836-00006)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Hattie E Hall | 62 | Head | — | Norway |
| 42 | Elida Hall | 27 | Daughter | Teacher | Illinois |
| 43 | William M Olson | 38 | Head | Laborer | Illinois |
| 44 | Stella H Olson | 37 | Wife | — | Illinois |
| 45 | Ramona E Olson | 6 | Daughter | — | Illinois |
| 46 | William E Reppine | 33 | Brother-in-law | Truck Driver | Illinois |
| 47 | Ruth R Reppine | 31 | Sister-in-law | — | Illinois |
| 48 | Albert E Reppine | 5 | Brother-in-law | Laborer | Illinois |
| 49 | Emma A Foster | 59 | Head | — | Illinois |
| 50 | Adolph G Gunderson | 49 | Head | Section Foreman | Wisconsin |
| 51 | Carrie M Gunderson | 47 | Wife | — | Indiana |
| 52 | Howard D Gunderson | 11 | Son | — | Illinois |
| 53 | Dorthy M Stunkel | 21 | Daughter | — | Illinois |
| 54 | Donna M Stunkel | 5 | Grand Daughter | — | Illinois |
| 55 | Daniel M Jordan | 79 | Head | Minister | Iowa |
| 56 | Irene J Jordan | 31 | Wife | — | Iowa |
| 57 | Raymond D Jordan | 2 | Son | — | Iowa |
| 58 | Charles Stein | 68 | Head | Dealer | Illinois |
| 59 | Floyd L Stein | 37 | Son | Truck Driver | Illinois |
| 60 | Elizabeth M Stein | 41 | Daughter | — | Illinois |
| 61 | Frank W Hewitt | 45 | Head | Painter | Illinois |
| 62 | Bess M Hewitt | 43 | Wife | — | Illinois |
| 63 | Margaret J Hewitt | 17 | Daughter | — | Illinois |
| 64 | Oliver R Halsne | 67 | Head | — | Illinois |
| 65 | Hanna Halsne | 64 | Wife | — | Illinois |
| 66 | Elmer L Halsne | 24 | Son | Truck Driver | Illinois |
| 67 | John P Wetter | 50 | Head | Salesman | Illinois |
| 68 | Alice M Wetter | 40 | Wife | Teacher | Indiana |
| 69 | Edward M Lemon | 76 | Lodger | Teacher | Illinois |
| 70 | Hildegarde Frydl | 22 | Lodger | Teacher | Yugoslavia |
| 71 | Jean M Thompson | 43 | Head | Teacher Principal | Illinois |
| 72 | Marjorie C Thompson | 41 | Wife | — | Illinois |
| 73 | Wendell J Thompson | 9 | Son | — | Illinois |
| 74 | Florence C Thompson | 3 | Daughter | — | Illinois |
| 75 | Inez Roede | 45 | Housekeeper | Housekeeper | Illinois |
| 76 | Morris Cook | 75 | Head | — | Illinois |
| 77 | Gertrude C Cook | 70 | Wife | — | Illinois |
| 78 | Florence Cook THIS PERSON | 31 | Daughter | Teacher | Illinois |
| 79 | Joseph E Wihm | 46 | Head | Foreman | Illinois |
| 80 | Rachel C Wihm | 44 | Wife | — | Illinois |
Pedigree Summary
Florence
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)