DC
Dorothy Cook — 1940 US Census Record
Model Tree available1940 United States Federal Census · Dorchester-County, South Carolina
Our Model Tree links this Dorothy Cook across the 1920, 1930 and 1940 US Censuses in Dorchester-County, South Carolina (XGBoost, ~Confirmed), with identified parents Harry & John — first a daughter (b.~1919), then head of a 13-person household.
Age 21
b. ~1919
Female
Daughter
Born: South Carolina
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Dorchester-County, South Carolina |
| Surname | Cook |
| Given Name | Dorothy |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 21 |
| Marital Status | Single |
| Birthplace | South Carolina |
| 1935 Residence (City) | Collins Township |
| 1935 Residence (County) | Dorchester |
| Additional Details | |
| Occupation | Maid |
| Industry | Private home |
| Class of Worker | OA |
| Hours Worked | 48 |
| Income (1939) | 220 |
| Highest Grade | No 4 |
| 1935 Residence | Same place |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
| Occupation | Maid |
| Township / Ward | Collins Township |
| Est. Birth Year | ~1919 |
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.
13 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Dorothy | Age | Birth yr |
|---|---|---|---|---|
| Benjamin Cook | Son | — | 22 | ~1918 |
| Lottie Cook | Daughter | — | 9 | ~1931 |
| Dorothy Cook | Daughter | — | 21 | ~1919 |
| Peter Cook | Son | — | 11 | ~1929 |
| Alvine Cook | Daughter | — | 23 | ~1917 |
| Robert Cook | Son | — | 18 | ~1922 |
| Harry Cook | Head | — | 58 | ~1882 |
| Josiah Cook | Son | — | 14 | ~1926 |
| Janie Cook | Daughter | — | 19 | ~1921 |
| Harry Cook | Son | — | 24 | ~1916 |
| Catherine Cook | Daughter | — | 17 | ~1923 |
| Beatrice Cook | Daughter | — | 15 | ~1925 |
| Everline Cook | Daughter | — | 13 | ~1927 |
Census Appearances
1920
Dorchester, South …
Daughter, age 2
Dorchester, South Carolina · implied b. ~1918 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cook |
| Given Name | Dorothy |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 2 |
| Marital Status | Single |
| Birthplace | South Carolina |
| Father's Birthplace | South Carolina |
| Mother's Birthplace | South Carolina |
| Can Read | No |
| Can Write | No |
| Speaks English | Yes |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
1930
Dorchester, South …
Daughter, age 11
Dorchester, South Carolina · implied b. ~1919 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cook |
| Given Name | Dorothy |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 11 |
| Marital Status | Single |
| Birthplace | South Carolina |
| Father's Birthplace | South Carolina |
| Mother's Birthplace | South Carolina |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
1940
Dorchester-County, South …
Daughter, age 21
Dorchester-County, South Carolina · implied b. ~1919 — 13 household members
| Surname | Cook |
| Given Name | Dorothy |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 21 |
| Marital Status | Single |
| Birthplace | South Carolina |
| 1935 Residence (City) | Collins Township |
| 1935 Residence (County) | Dorchester |
| Occupation | Maid |
| Industry | Private home |
| Class of Worker | OA |
| Hours Worked | 48 |
| Income (1939) | 220 |
| Highest Grade | No 4 |
| 1935 Residence | Same place |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
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 Dorothy Cook across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Harry Cook (~0.92 confidence) and father John Cook (~0.92 confidence) and mother Ida Cook (~0.92 confidence) and mother Mary Cook (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Harry Cook
b. ~1881
Source father
● Household
· direct · ~0.92
Father
John Cook
b. ~1896
Source father
● Household
· direct · ~0.92
Mother
Ida Cook
b. ~1902
Source mother
● Household
· direct · ~0.92
Mother
Mary Cook
b. ~1884
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Dorothy Cook
Daughter · 1940 · age 21 · b. ~1919 · South Carolina
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Sibling
Robert Cook
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Benjamin Cook
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Beatrice Cook
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alvine Cook
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Everline Cook
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Josiah Cook
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Harry Cook
Sibling · 1940 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Peter Cook
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Catherine Cook
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Janie Cook
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lottie Cook
Sibling · 1940 · age 9
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 — Dorchester-County, South Carolina
Open full size
1940 US Federal Census — Dorchester-County, South Carolina
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03805-00131)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Ethel Kertner | 44 | Head | Farmer | South Carolina |
| 2 | Augustus Kertner | 19 | Son | Farm Hand | South Carolina |
| 3 | Gertrude Kertner | 18 | Daughter | Farm Hand | South Carolina |
| 4 | John Cook | 50 | Head | Farmer | South Carolina |
| 5 | Ida Cook | 45 | Wife | Farm Hand | South Carolina |
| 6 | Harry Cook | 58 | Head | Farmer | South Carolina |
| 7 | Harry Jr Cook | 24 | Son | Mechanic | South Carolina |
| 8 | Alvine Cook | 23 | Daughter | Nurse | South Carolina |
| 9 | Benjamin Cook | 22 | Son | Mechanic | South Carolina |
| 10 | Dorothy Cook THIS PERSON | 21 | Daughter | Maid | South Carolina |
| 11 | Janie Cook | 19 | Daughter | Train Nurse | South Carolina |
| 12 | Robert Cook | 18 | Son | Farm Hand | South Carolina |
| 13 | Catherine Cook | 17 | Daughter | Farm Hand | South Carolina |
| 14 | Beatrice Cook | 15 | Daughter | Farm Hand | South Carolina |
| 15 | Josiah Cook | 14 | Son | Farm Hand | South Carolina |
| 16 | Everline Cook | 13 | Daughter | — | South Carolina |
| 17 | Peter Cook | 11 | Son | — | South Carolina |
| 18 | Lottie Cook | 9 | Daughter | — | South Carolina |
| 19 | Robert Boyles | 44 | Head | Farmer | South Carolina |
| 20 | Mamie Boyles | 36 | Wife | Farm Hand | South Carolina |
| 21 | Jarish Gibbes | 32 | Head | Farmer | South Carolina |
| 22 | Everline Gibbes | 36 | Lodger | Farm Hand | South Carolina |
| 23 | Charlie Lawrence | 57 | Head | Farmer | South Carolina |
| 24 | Phibbie Lawrence | 60 | Wife | Farm Hand | South Carolina |
| 25 | Oliver Middleton | 60 | Head | Farmer | South Carolina |
| 26 | Maggie Middleton | 52 | Wife | Farm Hand | South Carolina |
| 27 | Ezekiel Middleton | 32 | Head | Farmer | South Carolina |
| 28 | Annie Middleton | 28 | Wife | Farm Hand | South Carolina |
| 29 | Geneva Middleton | 9 | Daughter | — | South Carolina |
| 30 | Angelene Middleton | 6 | Daughter | — | South Carolina |
| 31 | Leroy Middleton | 4 | Son | — | South Carolina |
| 32 | Dorathy Middleton | 2 | Daughter | — | South Carolina |
| 33 | Ben Jenkins | 27 | Head | Farmer | South Carolina |
| 34 | Pheobia Jenkins | 23 | Wife | Farm Hand | South Carolina |
| 35 | Jessie Jenkins | 22 | Son | Farm Hand | South Carolina |
| 36 | Benjamin Jenkins | 10 | Son | — | South Carolina |
| 37 | Rebecca Jenkins | 9 | Daughter | — | South Carolina |
| 38 | Isaac Jenkins | 8 | Son | — | South Carolina |
| 39 | Virginia Jenkins | 4 | Daughter | — | South Carolina |
| 40 | Samuel Jenkins | 2 | Son | — | South Carolina |
Related Census Records
Pedigree Summary
Dorothy + 11 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)