HC
Henry Clark — 1940 US Census Record
Model Tree available1940 United States Federal Census · Charleston-County, South Carolina
Our Model Tree links this Henry Clark across the 1920, 1930 and 1940 US Censuses in Charleston-County, South Carolina (XGBoost, ~Confirmed), with identified parents Mary & John — first a head (b.~1912), then head of a 4-person household.
Age 28
b. ~1912
Male
Head
Born: South Carolina
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Charleston-County, South Carolina |
| Surname | Clark |
| Given Name | Henry |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | Black |
| Age | 28 |
| Marital Status | Married |
| Birthplace | South Carolina |
| 1935 Residence (City) | Charleston City |
| 1935 Residence (County) | Charleston |
| Additional Details | |
| Occupation | Bricklayer |
| Industry | Building Contractor |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 306 |
| Highest Grade | Hs 5 |
| 1935 Residence | Same place |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
| Occupation | Bricklayer |
| Township / Ward | Charleston City |
| Est. Birth Year | ~1912 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Henry | Age | Birth yr |
|---|---|---|---|---|
| Ursula Clark | Daughter | — | 3 | ~1937 |
| Henry Clark | Head | — | 28 | ~1912 |
| Henry Clark | Son | — | 1 | ~1939 |
| Florie Clark | Spouse | — | 23 | ~1917 |
Census Appearances
1920
Charleston, South …
Other, age 2
Charleston, South Carolina · implied b. ~1918 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Henry |
| Sex | M |
| Color / Race | Black |
| Age | 2 |
| 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 |
1930
Charleston, South …
Son, age 13
Charleston, South Carolina · implied b. ~1917 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Henry |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 13 |
| Marital Status | Single |
| Birthplace | South Carolina |
| Father's Birthplace | South Carolina |
| Mother's Birthplace | South Carolina |
| Can Read/Write | Yes |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
1940
Charleston-County, South …
Head, age 28
Charleston-County, South Carolina · implied b. ~1912 — 4 household members
| Surname | Clark |
| Given Name | Henry |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | Black |
| Age | 28 |
| Marital Status | Married |
| Birthplace | South Carolina |
| 1935 Residence (City) | Charleston City |
| 1935 Residence (County) | Charleston |
| Occupation | Bricklayer |
| Industry | Building Contractor |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 306 |
| Highest Grade | Hs 5 |
| 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 Henry Clark across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Mary Clark (~0.83 confidence) and father John Clark (~0.92 confidence). The pedigree spans 2 generations with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.88
Mother
Mary Clark
b. ~1872
Source father>mother
● Household
· direct · ~0.83
Father
John Clark
b. ~1888
Source father
● Household
· direct · ~0.92
This person
Anchor record
Henry Clark
Head · 1940 · age 28 · b. ~1912 · South Carolina
★ 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 — Charleston-County, South Carolina
Open full size
1940 US Federal Census — Charleston-County, South Carolina
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03794-00181)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Julia Hayward | 34 | Head | Laborer | South Carolina |
| 42 | Annie Hayward | 29 | Wife | — | South Carolina |
| 43 | Marie Hayward | 5 | Daughter | — | South Carolina |
| 44 | John Hayward | 2 | Son | — | South Carolina |
| 45 | Paul Coleman | 40 | Head | Laborer | South Carolina |
| 46 | Margaret Coleman | 38 | Wife | — | South Carolina |
| 47 | Juanita Coleman | 8 | Daughter | — | South Carolina |
| 48 | Mary Coleman | 4 | Daughter | — | South Carolina |
| 49 | Annie Coleman | 2 | Daughter | — | South Carolina |
| 50 | Moody Simmons | 24 | Head | Delivery Boy | South Carolina |
| 51 | Annie Simmons | 20 | Wife | — | South Carolina |
| 52 | Frank Simmons | 1 | Son | — | South Carolina |
| 53 | Richard Walker | 39 | Head | Laborer | South Carolina |
| 54 | Helen Walker | 36 | Wife | — | South Carolina |
| 55 | Viola Walker | 5 | Daughter | — | South Carolina |
| 56 | William Walker | 4 | Son | — | South Carolina |
| 57 | Carrie Walker | 2 | Daughter | — | South Carolina |
| 58 | Dorothy Walker | 1 | Daughter | — | South Carolina |
| 59 | Nickolas Michael | 37 | Head | Laborer | South Carolina |
| 60 | Nancy Michael | 33 | Wife | — | South Carolina |
| 61 | Henrietta Michael | 7 | Daughter | — | South Carolina |
| 62 | Josephine Michael | 4 | Daughter | — | South Carolina |
| 63 | Julius Michael | 1 | Son | — | South Carolina |
| 64 | Richard Glover | 34 | Head | Bricklayer | South Carolina |
| 65 | Julia Glover | 24 | Wife | Bricklayer | South Carolina |
| 66 | Evelyn Glover | 8 | Daughter | — | South Carolina |
| 67 | John Glover | 5 | Son | — | South Carolina |
| 68 | Isaac Glover | 3 | Son | — | South Carolina |
| 69 | Isaac Graham | 32 | Head | Carpenter | South Carolina |
| 70 | Viola Graham | 30 | Wife | — | South Carolina |
| 71 | Annie Graham | 6 | Daughter | — | South Carolina |
| 72 | Charles Graham | 3 | Son | — | South Carolina |
| 73 | Henry Clark THIS PERSON | 28 | Head | Bricklayer | South Carolina |
| 74 | Florie Clark | 23 | Wife | — | South Carolina |
| 75 | Ursula Clark | 3 | Daughter | — | South Carolina |
| 76 | Henry Clark | 1 | Son | — | South Carolina |
| 77 | Thomas Washington | 25 | Head | Truck Driver | South Carolina |
| 78 | Mary Washington | 24 | Wife | — | South Carolina |
| 79 | John Washington | 2 | Son | — | South Carolina |
| 80 | Edward Washington | 0 | Son | — | South Carolina |
Pedigree Summary
Henry
Gen 1 · 1 parents
~0.92
Gen 2 · 1 grandparents
~0.83
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)