MD
Mary Dickson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Clarendon-County, South Carolina
Our Model Tree links this Mary Dickson across the 1930 and 1940 US Censuses in Clarendon-County, South Carolina (XGBoost, ~Confirmed) — first a daughter (b.~1927), then head of a 7-person household.
Age 13
b. ~1927
Female
Daughter
Born: South Carolina
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Clarendon-County, South Carolina |
| Surname | Dickson |
| Given Name | Mary Lee |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 13 |
| Marital Status | Single |
| Birthplace | South Carolina |
| 1935 Residence (City) | St. Marks Township |
| 1935 Residence (County) | Clarendon |
| Additional Details | |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
| Township / Ward | St Marks Township |
| Est. Birth Year | ~1927 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Dickson | Daughter | — | 13 | ~1927 |
| Elizabeth Dickson | Spouse | — | 56 | ~1884 |
| Susie Dickson | Daughter | — | 11 | ~1929 |
| Samuel Dickson | Son | — | 5 | ~1935 |
| Gleason Dickson | Son | — | 21 | ~1919 |
| Alberta Dickson | Daughter | — | 17 | ~1923 |
| Luke Dickson | Head | — | 56 | ~1884 |
Census Appearances
1930
Calhoun, South …
Daughter, age 2
Calhoun, South Carolina · implied b. ~1928 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Duckson |
| Given Name | Mary |
| 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 |
| Occupation | none |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
1940
Clarendon-County, South …
Daughter, age 13
Clarendon-County, South Carolina · implied b. ~1927 — 7 household members
| Surname | Dickson |
| Given Name | Mary Lee |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 13 |
| Marital Status | Single |
| Birthplace | South Carolina |
| 1935 Residence (City) | St. Marks Township |
| 1935 Residence (County) | Clarendon |
| Highest Grade | No 8 |
| 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 Mary Dickson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Dickson
Daughter · 1940 · age 13 · b. ~1927 · South Carolina
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Sibling
Alberta Dickson
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Samuel Dickson
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Gleason Dickson
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Susie Dickson
Sibling · 1940 · age 11
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 — Clarendon-County, South Carolina
Open full size
1940 US Federal Census — Clarendon-County, South Carolina
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03800-00659)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | James Jr. Dickson | 59 | Head | Farmer | South Carolina |
| 2 | Mary Dickson | 54 | Wife | — | South Carolina |
| 3 | James Dickson | 22 | Son | Laborer | South Carolina |
| 4 | Clarence Dickson | 18 | Son | Laborer | South Carolina |
| 5 | Thomas Canal | 57 | Head | Operator | South Carolina |
| 6 | Beatrice Canal | 23 | Wife | — | South Carolina |
| 7 | Thomas E. Canal | 5 | Son | — | South Carolina |
| 8 | Beatrice Canal | 3 | Daughter | — | South Carolina |
| 9 | Hiram Cutter | 24 | Lodger | Fisherman | South Carolina |
| 10 | Charles Cutter | 15 | Lodger | — | South Carolina |
| 11 | Charlie Dickson | 27 | Head | Laborer | South Carolina |
| 12 | Mary Dickson | 27 | Wife | — | South Carolina |
| 13 | Harold Dickson | 4 | Son | — | South Carolina |
| 14 | Ervin Dickson | 1 | Son | — | South Carolina |
| 15 | Luke Dickson | 56 | Head | Farmer | South Carolina |
| 16 | Elizabeth Dickson | 56 | Wife | — | South Carolina |
| 17 | Gleason Dickson | 21 | Son | Laborer | South Carolina |
| 18 | Alberta Dickson | 17 | Daughter | Seamstress | South Carolina |
| 19 | Mary Lee Dickson THIS PERSON | 13 | Daughter | — | South Carolina |
| 20 | Susie May Dickson | 11 | Daughter | — | South Carolina |
| 21 | Samuel Ethan Dickson | 5 | Son | — | South Carolina |
| 22 | Dennie Simon | 24 | Head | Farmer | South Carolina |
| 23 | Annie Simon | 23 | Wife | — | South Carolina |
| 24 | Annie May Simon | 3 | Daughter | — | South Carolina |
| 25 | John Wesley Simon | 1 | Son | — | South Carolina |
| 26 | Willie Simon | 70 | Father | — | South Carolina |
| 27 | Mary Simon | 69 | Mother | — | South Carolina |
| 28 | Lula Simon | 18 | Sister | — | South Carolina |
| 29 | Ansel Dickson | 38 | Head | Farmer | South Carolina |
| 30 | Hattie Dickson | 25 | Wife | — | South Carolina |
| 31 | Ernest Dickson | 15 | Son | — | South Carolina |
| 32 | Charles Dickson | 13 | Son | — | South Carolina |
| 33 | James Dickson | 12 | Son | — | South Carolina |
| 34 | Robert Dickson | 9 | Son | — | South Carolina |
| 35 | Ernestine Dickson | 7 | Daughter | — | South Carolina |
| 36 | Lula Dickson | 5 | Daughter | — | South Carolina |
| 37 | Ansel Jr. Dickson | 3 | Son | — | South Carolina |
| 38 | Charlie Regan | 34 | Head | Farmer | South Carolina |
| 39 | Clara Regan | 30 | Wife | — | South Carolina |
| 40 | James P. Regan | 9 | Son | — | South Carolina |
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)