CJ
Catherine Johnson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Clarendon-County, South Carolina
Our Model Tree links this Catherine Johnson across the 1930 and 1940 US Censuses in Clarendon-County, South Carolina (XGBoost, ~Confirmed) — first a daughter (b.~1924), then head of a 10-person household.
Age 16
b. ~1924
Female
Daughter
Born: South Carolina
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Clarendon-County, South Carolina |
| Surname | Johnson |
| Given Name | Catherine |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 16 |
| Marital Status | Single |
| Birthplace | South Carolina |
| 1935 Residence (City) | St. Marks Township |
| 1935 Residence (County) | Clarendon |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
| Township / Ward | St Marks Township |
| Est. Birth Year | ~1924 |
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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Catherine | Age | Birth yr |
|---|---|---|---|---|
| Catherine Johnson | Daughter | — | 16 | ~1924 |
| Annie Johnson | Daughter | — | 18 | ~1922 |
| Mandine Johnson | Daughter | — | 7 | ~1933 |
| Mary Johnson | Daughter | — | 20 | ~1920 |
| Harvey Johnson | Head | — | 50 | ~1890 |
| Albert Johnson | Son | — | 5 | ~1935 |
| Purdue Johnson | Son | — | 13 | ~1927 |
| General Johnson | Son | — | 12 | ~1928 |
| Edmon Johnson | Son | — | 2 | ~1938 |
| Viola Johnson | Spouse | — | 41 | ~1899 |
Census Appearances
1930
Clarendon, South …
Daughter, age 6
Clarendon, South Carolina · implied b. ~1924 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Catherine |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 6 |
| Marital Status | Single |
| Birthplace | South Carolina |
| Father's Birthplace | South Carolina |
| Mother's Birthplace | South Carolina |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
1940
Clarendon-County, South …
Daughter, age 16
Clarendon-County, South Carolina · implied b. ~1924 — 10 household members
| Surname | Johnson |
| Given Name | Catherine |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 16 |
| Marital Status | Single |
| Birthplace | South Carolina |
| 1935 Residence (City) | St. Marks Township |
| 1935 Residence (County) | Clarendon |
| Class of Worker | 0 |
| Highest Grade | No 6 |
| 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 Catherine Johnson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Catherine Johnson
Daughter · 1940 · age 16 · b. ~1924 · South Carolina
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Sibling
Mandine Johnson
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Purdue Johnson
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edmon Johnson
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
General Johnson
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Albert Johnson
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Annie Johnson
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Johnson
Sibling · 1940 · age 20
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-t0627-03800-00653)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Isaac Mack | 70 | Head | — | South Carolina |
| 2 | Rosa Mack | 48 | Wife | — | South Carolina |
| 3 | John Mack | 19 | Son | Laborer | South Carolina |
| 4 | John Mack | 13 | Son | — | South Carolina |
| 5 | Binnie Mack | 12 | Daughter | — | South Carolina |
| 6 | Melvin Mack | 5 | Son | — | South Carolina |
| 7 | Mary Mack | 39 | Head | — | South Carolina |
| 8 | Benny Mack | 23 | Son | Laborer | South Carolina |
| 9 | Samuel Mack | 18 | Son | Laborer | South Carolina |
| 10 | Jannie Mack | 16 | Daughter | — | South Carolina |
| 11 | Eddie Mack | 14 | Son | — | South Carolina |
| 12 | Calvin Mack | 9 | Son | — | South Carolina |
| 13 | Peter Mack | 49 | Head | Farmer | South Carolina |
| 14 | Ester Mack | 38 | Wife | — | South Carolina |
| 15 | Beatrice Davis | 53 | Head | Farmer | South Carolina |
| 16 | Essie Davis | 20 | Daughter | — | South Carolina |
| 17 | Lottie Davis | 19 | Daughter | — | South Carolina |
| 18 | Ruby Lee Davis | 15 | Daughter | — | South Carolina |
| 19 | Harvey Mckinney | 11 | Ad. Son | — | South Carolina |
| 20 | Harvey Johnson | 50 | Head | Farmer | South Carolina |
| 21 | Viola Johnson | 41 | Wife | — | South Carolina |
| 22 | Mary Johnson | 20 | Daughter | — | South Carolina |
| 23 | Annie May Johnson | 18 | Daughter | — | South Carolina |
| 24 | Catherine Johnson THIS PERSON | 16 | Daughter | — | South Carolina |
| 25 | Purdue Johnson | 13 | Son | — | South Carolina |
| 26 | General Lee Johnson | 12 | Son | — | South Carolina |
| 27 | Mandine Johnson | 7 | Daughter | — | South Carolina |
| 28 | Albert Johnson | 5 | Son | — | South Carolina |
| 29 | Edmon Johnson | 2 | Son | — | South Carolina |
| 30 | Willie Johnson | 21 | Head | Laborer | South Carolina |
| 31 | Velma Johnson | 18 | Wife | — | South Carolina |
| 32 | Willie Johnson | 1 | Son | — | South Carolina |
| 33 | Arthur Mack | 60 | Head | Farmer | South Carolina |
| 34 | Janie Mack | 48 | Wife | — | South Carolina |
| 35 | Eugene Mack | 18 | Son | Laborer | South Carolina |
| 36 | Angeline Mack | 4 | Daughter | — | South Carolina |
| 37 | Sheridan Mack | 1 | Daughter | — | South Carolina |
| 38 | Fred White | 41 | Head | Farmer | South Carolina |
| 39 | Edna White | 21 | Daughter | — | South Carolina |
| 40 | Enis White | 15 | Daughter | — | 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)