MJ
Mary Jenkins — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Dorchester-County, South Carolina
Our Model Tree links this Mary Jenkins across the 1930 and 1940 US Censuses in Dorchester-County, South Carolina (XGBoost, ~Confirmed) — first a daughter (b.~1921), then head of a 12-person household.
Age 19
b. ~1921
Female
Daughter
Born: South Carolina
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Dorchester-County, South Carolina |
| Surname | Jenkins |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 19 |
| Marital Status | Single |
| Birthplace | South Carolina |
| 1935 Residence (City) | George Township |
| 1935 Residence (County) | Dorchester |
| Additional Details | |
| Class of Worker | PW |
| Hours Worked | 5 |
| Income (1939) | 0 |
| Highest Grade | No 7 |
| 1935 Residence | Same House |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
| Township / Ward | George Township |
| Est. Birth Year | ~1921 |
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.
12 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Jenkins | Daughter | — | 19 | ~1921 |
| Elise Jenkins | Daughter | — | 7 | ~1933 |
| Etta Jenkins | Daughter | — | 4 | ~1936 |
| Russell Jenkins | Daughter | — | 16 | ~1924 |
| Janis Jenkins | Daughter | — | 17 | ~1923 |
| Albert Jenkins | Head | — | 39 | ~1901 |
| Lawrence Jenkins | Son | — | 11 | ~1929 |
| Pinkney Jenkins | Son | — | 13 | ~1927 |
| Wilbur Jenkins | Son | — | 12 | ~1928 |
| Amos Jenkins | Son | — | 5 | ~1935 |
| Harry Jenkins | Son | — | 10 | ~1930 |
| Maggie Jenkins | Spouse | — | 38 | ~1902 |
Census Appearances
1930
Dorchester, South …
Daughter, age 8
Dorchester, South Carolina · implied b. ~1922 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jenkins |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 8 |
| Marital Status | Single |
| Birthplace | South Carolina |
| Father's Birthplace | South Carolina |
| Mother's Birthplace | South Carolina |
| Can Read/Write | No |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
1940
Dorchester-County, South …
Daughter, age 19
Dorchester-County, South Carolina · implied b. ~1921 — 12 household members
| Surname | Jenkins |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 19 |
| Marital Status | Single |
| Birthplace | South Carolina |
| 1935 Residence (City) | George Township |
| 1935 Residence (County) | Dorchester |
| Class of Worker | PW |
| Hours Worked | 5 |
| Income (1939) | 0 |
| Highest Grade | No 7 |
| 1935 Residence | Same House |
| 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 Mary Jenkins across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Jenkins
Daughter · 1940 · age 19 · b. ~1921 · South Carolina
★ You are viewing this record
Sibling
Amos Jenkins
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Janis Jenkins
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lawrence Jenkins
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Pinkney Jenkins
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Wilbur Jenkins
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Elise Jenkins
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Harry Jenkins
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Russell Jenkins
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Etta Jenkins
Sibling · 1940 · age 4
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-t0627-03805-00423)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Albertha Barnwell | 16 | Daughter | Cook | South Carolina |
| 2 | Vivian Barnwell | 14 | Daughter | — | South Carolina |
| 3 | Levy Jr. Barnwell | 12 | Son | — | South Carolina |
| 4 | Etta Belle Barnwell | 11 | Daughter | — | South Carolina |
| 5 | Alma Barnwell | 8 | Daughter | — | South Carolina |
| 6 | Clyde Barnwell | 6 | Son | — | South Carolina |
| 7 | Lawyer Primus | 54 | Head | Farmer | South Carolina |
| 8 | Annie Primus | 49 | Wife | — | South Carolina |
| 9 | Clifford Primus | 19 | Son | Farm Laborer | South Carolina |
| 10 | Bernice Primus | 10 | Daughter | — | South Carolina |
| 11 | Abraham Lewis | 41 | Lodger | Farm Laborer | South Carolina |
| 12 | William Lewis | 33 | Lodger | Farm Laborer | South Carolina |
| 13 | Christopher Boyd | 50 | Head | Farmer | South Carolina |
| 14 | Martha Boyd | 60 | Wife | — | South Carolina |
| 15 | James Boyd | 24 | Son | Farm Laborer | South Carolina |
| 16 | Christopher Jr. Boyd | 14 | Son | — | South Carolina |
| 17 | John L. Boyd | 11 | Son | — | South Carolina |
| 18 | Matthew Boyd | 9 | Son | — | South Carolina |
| 19 | Maggie Boyd | 8 | Son | — | South Carolina |
| 20 | Martha Boyd | 6 | Daughter | — | South Carolina |
| 21 | Margaret Boyd | 2 | Daughter | — | South Carolina |
| 22 | Ripley Hayes | 48 | Head | Farmer | South Carolina |
| 23 | Junie Hayes | 44 | Wife | — | South Carolina |
| 24 | Pretta Hayes | 18 | Daughter | — | South Carolina |
| 25 | Oscar V. Hayes | 16 | Son | Farm Laborer | South Carolina |
| 26 | Johnnie Hayes | 14 | Son | — | South Carolina |
| 27 | Luder Hayes | 7 | Son | — | South Carolina |
| 28 | Betty Hayes | 4 | Daughter | — | South Carolina |
| 29 | Albert Jenkins | 39 | Head | Farmer | South Carolina |
| 30 | Maggie Jenkins | 38 | Wife | — | South Carolina |
| 31 | Mary Jenkins THIS PERSON | 19 | Daughter | — | South Carolina |
| 32 | Janis Jenkins | 17 | Daughter | — | South Carolina |
| 33 | Russell Jenkins | 16 | Daughter | — | South Carolina |
| 34 | Pinkney Jenkins | 13 | Son | — | South Carolina |
| 35 | Wilbur Jenkins | 12 | Son | — | South Carolina |
| 36 | Lawrence Jenkins | 11 | Son | — | South Carolina |
| 37 | Harry Jenkins | 10 | Son | — | South Carolina |
| 38 | Elise Jenkins | 7 | Daughter | — | South Carolina |
| 39 | Amos Jenkins | 5 | Son | — | South Carolina |
| 40 | Etta Belle Jenkins | 4 | Daughter | — | South Carolina |
Related Census Records
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)