DC
David Cook — 1940 US Census Record
Model Tree available1940 United States Federal Census · Williamson-County, Tennessee
Our Model Tree links this David Cook across the 1920, 1930 and 1940 US Censuses in Williamson-County, Tennessee (XGBoost, ~Confirmed), with identified parents Clarence & Ada — first a son (b.~1917), then head of a 5-person household.
Age 23
b. ~1917
Male
Son
Born: Tennessee
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Williamson-County, Tennessee |
| Surname | Cook |
| Given Name | David |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Tennessee |
| 1935 Residence (City) | Franklin Town |
| 1935 Residence (County) | Williamson |
| Additional Details | |
| Occupation | Salesman |
| Industry | Retail Drug Store |
| Class of Worker | PW |
| Hours Worked | 60 |
| Income (1939) | 720 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Tennessee |
| Birth Country | United States |
| Birthplace (normalized) | tennessee |
| Occupation | Salesman |
| Township / Ward | Franklin Town |
| Est. Birth Year | ~1917 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to David | Age | Birth yr |
|---|---|---|---|---|
| David Cook | Son | — | 23 | ~1917 |
| Rosalie Hay | Daughter | — | 31 | ~1909 |
| Mary Cook | Daughter | — | 33 | ~1907 |
| Ada Cook | Head | — | 59 | ~1881 |
| Catherine Cook | Daughter | — | 19 | ~1921 |
Census Appearances
1920
Williamson, Tennessee
Son, age 3
Williamson, Tennessee · implied b. ~1917 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cook |
| Given Name | David |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Tennessee |
| Father's Birthplace | Tennessee |
| Mother's Birthplace | Tennessee |
| Birth State | Tennessee |
| Birth Country | United States |
| Birthplace (normalized) | tennessee |
1930
Williamson, Tennessee
Son, age 14
Williamson, Tennessee · implied b. ~1916 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cook |
| Given Name | David J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Tennessee |
| Father's Birthplace | Tennessee |
| Mother's Birthplace | Tennessee |
| Can Read/Write | Yes |
| Birth State | Tennessee |
| Birth Country | United States |
| Birthplace (normalized) | tennessee |
1940
Williamson-County, Tennessee
Son, age 23
Williamson-County, Tennessee · implied b. ~1917 — 5 household members
| Surname | Cook |
| Given Name | David |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Tennessee |
| 1935 Residence (City) | Franklin Town |
| 1935 Residence (County) | Williamson |
| Occupation | Salesman |
| Industry | Retail Drug Store |
| Class of Worker | PW |
| Hours Worked | 60 |
| Income (1939) | 720 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Tennessee |
| Birth Country | United States |
| Birthplace (normalized) | tennessee |
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 David Cook across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Clarence Cook (~0.92 confidence) and mother Ada Cook (~0.92 confidence) and mother Ida Cook (~0.92 confidence) and mother Ida Cook (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Clarence Cook
b. ~1875
Source father
● Household
· direct · ~0.92
Mother
Ada Cook
b. ~1881
Source mother
● Household
· direct · ~0.92
Mother
Ida Cook
b. ~1883
Source mother
● Household
· direct · ~0.92
Mother
Ida Cook
b. ~1882
Source mother
● Household
· direct · ~0.92
This person
Anchor record
David Cook
Son · 1940 · age 23 · b. ~1917 · Tennessee
★ You are viewing this record
Sibling
Catherine Cook
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Cook
Sibling · 1940 · age 33
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rosalie Hay
Sibling · 1940 · age 31
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 — Williamson-County, Tennessee
Open full size
1940 US Federal Census — Williamson-County, Tennessee
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03949-00307)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Sarah John Mcgarock | 52 | Head | Traveling Salesman | Tennessee |
| 2 | Mary Mcgarock | 50 | Wife | — | Tennessee |
| 3 | Martha Mcgarock | 23 | Daughter | Secretary | Tennessee |
| 4 | Winder Mcgarock | 43 | Brother | Proprietor | Tennessee |
| 5 | Elmer C. Byars | 46 | Head | Sr. Vice President | Tennessee |
| 6 | Lillian Byars | 44 | Wife | — | Tennessee |
| 7 | Albert J. Mccannon | 58 | Head | Clergyman | Tennessee |
| 8 | Geneva Mccannon | 53 | Wife | — | Tennessee |
| 9 | Alec Irvin | 63 | Head | President | Tennessee |
| 10 | Gertrude Irvin | 64 | Wife | — | Tennessee |
| 11 | Alice Irvin | 27 | Daughter | Lawyer | Tennessee |
| 12 | Catherine Irvin | 23 | Daughter | Secretary | Tennessee |
| 13 | John M. Green | 43 | Head | Proprietor | Tennessee |
| 14 | Elving R. Green | 42 | Wife | — | Tennessee |
| 15 | Walter R. Green | 18 | Son | — | Tennessee |
| 16 | John M. Jr. Green | 13 | Son | — | Tennessee |
| 17 | James A. Henderson | 59 | Head | Proprietor | Tennessee |
| 18 | Addie Henderson | 42 | Wife | — | Tennessee |
| 19 | Mildred Henderson | 35 | Daughter | — | Tennessee |
| 20 | Robert C. Capass | 47 | Head | Manager | Kentucky |
| 21 | Marie Capass | 38 | Wife | — | Kentucky |
| 22 | Mary Capass | 11 | Daughter | — | Kentucky |
| 23 | James Hatcher | 46 | Head | Moulder | Tennessee |
| 24 | Annie Hatcher | 48 | Wife | Teacher | Tennessee |
| 25 | Eleanor Hatcher | 24 | Daughter | Saleslady | Tennessee |
| 26 | Mary F. Hatcher | 19 | Daughter | — | Tennessee |
| 27 | Maynard Criswell | 58 | Head | — | Tennessee |
| 28 | Martha Criswell | 55 | Wife | — | Tennessee |
| 29 | Dorothy Criswell | 14 | Daughter | — | Tennessee |
| 30 | Fulton Lillie | 58 | Head | Fireman | Tennessee |
| 31 | Julia Lillie | 45 | Wife | — | Tennessee |
| 32 | James H. Lillie | 12 | Son | — | Tennessee |
| 33 | Ada Cook | 59 | Head | — | Tennessee |
| 34 | Mary L. Cook | 33 | Daughter | Bookkeeper | Tennessee |
| 35 | Rosalie Hay | 31 | Daughter | — | Tennessee |
| 36 | David Cook THIS PERSON | 23 | Son | Salesman | Tennessee |
| 37 | Catherine Cook | 19 | Daughter | Saleslady | Tennessee |
| 38 | James M. Coleman | 52 | Head | Master Mechanic | Tennessee |
| 39 | Myrtle Coleman | 46 | Wife | — | Tennessee |
| 40 | Mary Coleman | 13 | Daughter | — | Tennessee |
Related Census Records
Pedigree Summary
David + 3 siblings
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)