RC
Robert Cook — 1940 US Census Record
Model Tree available1940 United States Federal Census · Dallas-County, Texas
Our Model Tree links this Robert Cook across the 1920, 1930 and 1940 US Censuses in Dallas-County, Texas (XGBoost, ~Confirmed), with identified parents David & Harry — first a head (b.~1916), then head of a 5-person household.
Age 24
b. ~1916
Male
Head
Born: Texas
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Dallas-County, Texas |
| Surname | Cook |
| Given Name | Robert Lee |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Married |
| Birthplace | Texas |
| 1935 Residence (City) | Dallas City |
| 1935 Residence (County) | Dallas |
| Additional Details | |
| Occupation | Land Scaper |
| Industry | Building Contractor |
| Class of Worker | PW |
| Hours Worked | 54 |
| Income (1939) | 600 |
| Highest Grade | No 6 |
| 1935 Residence | Same Place |
| Birth State | Texas |
| Birth Country | United States |
| Birthplace (normalized) | texas |
| Occupation | Land Scaper |
| Township / Ward | Dallas City |
| Est. Birth Year | ~1916 |
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 Robert | Age | Birth yr |
|---|---|---|---|---|
| Mary Cook | Daughter | — | 4 | ~1936 |
| Unice Cook | Daughter | — | 1 | ~1939 |
| Robert Cook | Head | — | 24 | ~1916 |
| Robert Cook | Son | — | 2 | ~1938 |
| Mary Cook | Spouse | — | 25 | ~1915 |
Census Appearances
1920
Dallas, Texas
Son, age 4
Dallas, Texas · implied b. ~1916 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cook |
| Given Name | Robert C L |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Texas |
| Father's Birthplace | Texas |
| Mother's Birthplace | Texas |
| Birth State | Texas |
| Birth Country | United States |
| Birthplace (normalized) | texas |
1930
Dallas, Texas
Son, age 14
Dallas, Texas · implied b. ~1916 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cook |
| Given Name | Robert S |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Texas |
| Father's Birthplace | Texas |
| Mother's Birthplace | Texas |
| Can Read/Write | Yes |
| Birth State | Texas |
| Birth Country | United States |
| Birthplace (normalized) | texas |
1940
Dallas-County, Texas
Head, age 24
Dallas-County, Texas · implied b. ~1916 — 5 household members
| Surname | Cook |
| Given Name | Robert Lee |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Married |
| Birthplace | Texas |
| 1935 Residence (City) | Dallas City |
| 1935 Residence (County) | Dallas |
| Occupation | Land Scaper |
| Industry | Building Contractor |
| Class of Worker | PW |
| Hours Worked | 54 |
| Income (1939) | 600 |
| Highest Grade | No 6 |
| 1935 Residence | Same Place |
| Birth State | Texas |
| Birth Country | United States |
| Birthplace (normalized) | texas |
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 Robert Cook across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father David Cook (~0.92 confidence) and father Harry Cook (~0.92 confidence) and mother Ida Cook (~0.92 confidence) and mother Ada Cook (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
David Cook
b. ~1884
Source father
● Household
· direct · ~0.92
Father
Harry Cook
b. ~1884
Source father
● Household
· direct · ~0.92
Mother
Ida Cook
b. ~1886
Source mother
● Household
· direct · ~0.92
Mother
Ada Cook
b. ~1888
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Cook
Head · 1940 · age 24 · b. ~1916 · Texas
★ 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 — Dallas-County, Texas
Open full size
1940 US Federal Census — Dallas-County, Texas
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-04179-00851)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Daughter Durstine | None | F | 0 | — |
| 42 | James Cecil Ray | 48 | Head | Check Clerk | Texas |
| 43 | Pearl Ray | 48 | Wife | — | Texas |
| 44 | Sarah Virginia Ray | 20 | Daughter | — | Texas |
| 45 | Cecil Ray Jr. Ray | 15 | Son | — | Texas |
| 46 | Emma Lumpkin | 79 | Mother | — | Texas |
| 47 | E. C. Ratcliff | 46 | Head | Salesman | Texas |
| 48 | Imogene Ratcliff | 45 | Wife | Sales Lady | Texas |
| 49 | Charles M. Ratcliff | 24 | Son | — | Texas |
| 50 | Mary Harvey | 35 | Maid | — | Texas |
| 51 | Sarah Brown | 45 | Maid | Maid | Tennessee |
| 52 | James E. Collins | 21 | Head | Salesman | Texas |
| 53 | Margaret W. Collins | 20 | Wife | Stenographer | Texas |
| 54 | J. W. Simmons | 26 | Lodger | Investigator | Texas |
| 55 | R. J. Griffith | 56 | Head | Adjuster | Texas |
| 56 | Laura Belle Griffith | 50 | Wife | — | Texas |
| 57 | Frances Ann Griffith | 19 | Daughter | — | Texas |
| 58 | Roberta Jane Griffith | 12 | Daughter | — | Texas |
| 59 | Dorothy Faxon | 33 | Lodger | Secretary | Texas |
| 60 | Samuel E. Nixon | 47 | Head | Salesman | Texas |
| 61 | Joe Alice Nixon | 46 | Wife | — | Texas |
| 62 | Virginia E. Nixon | 16 | Daughter | — | Texas |
| 64 | George H. Mckelvey | 61 | Head | Salesman | Iowa |
| 65 | Ada M. Mckelvey | 59 | Wife | — | Texas |
| 66 | Gertrude Mckelvey | 33 | Daughter | Book Keeper | Texas |
| 67 | Adell Mulkey | 35 | Daughter | Secretary | Texas |
| 68 | William Mulkey | 16 | Grand Son | — | Texas |
| 69 | George A. Mulkey | 13 | Grand Son | — | Texas |
| 70 | A. E. Laing | 27 | Head | Book Binder | Texas |
| 71 | Georgia Laing | 22 | Wife | — | Texas |
| 72 | Carl S. Nash | 21 | Head | Salesman | Texas |
| 73 | Devon Nash | 25 | Wife | — | Texas |
| 74 | Marion Nash | 4 | Daughter | — | Texas |
| 75 | Robert Lee Cook THIS PERSON | 24 | Head | Land Scaper | Texas |
| 76 | Mary Katherine Cook | 25 | Wife | — | Texas |
| 77 | Mary Katherine Cook | 4 | Daughter | — | Texas |
| 78 | Robert Lee Jr. Cook | 2 | Son | — | Texas |
| 79 | Unice Lee Cook | 1 | Daughter | — | Texas |
| 80 | Frank Cook | 66 | Head | Nursery Workman | Texas |
Pedigree Summary
Robert
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)