JM
John Mack — 1940 US Census Record
Model Tree available1940 United States Federal Census · Orangeburg-County, South Carolina
Our Model Tree links this John Mack across the 1920, 1930 and 1940 US Censuses in Orangeburg-County, South Carolina (XGBoost, ~Confirmed), with identified parents John — first a head (b.~1914), then head of a 3-person household.
Age 26
b. ~1914
Male
Head
Born: South Carolina
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Orangeburg-County, South Carolina |
| Surname | Mack |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | Black |
| Age | 26 |
| Marital Status | Married |
| Birthplace | South Carolina |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Orangeburg |
| Additional Details | |
| Occupation | Laborer |
| Industry | Farm |
| Class of Worker | PW |
| Hours Worked | 60 |
| Income (1939) | 285 |
| Highest Grade | No 1 |
| 1935 Residence | South Carolina |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
| Occupation | Laborer |
| Township / Ward | Branchville Town |
| Est. Birth Year | ~1914 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Thelma Mack | Spouse | — | 24 | ~1916 |
| John Mack | Head | — | 26 | ~1914 |
| Vera Mack | Daughter | — | 1 | ~1939 |
Census Appearances
1920
Orangeburg, South …
Other, age 7
Orangeburg, South Carolina · implied b. ~1913 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mack |
| Given Name | John |
| Relationship to Head | Nephew |
| Sex | M |
| Color / Race | Black |
| Age | 7 |
| 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
Orangeburg, South …
Son, age 18
Orangeburg, South Carolina · implied b. ~1912 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mack |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 18 |
| Marital Status | Single |
| Birthplace | South Carolina |
| Father's Birthplace | South Carolina |
| Mother's Birthplace | South Carolina |
| Occupation | Laborer |
| Industry | Farm |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
1940
Orangeburg-County, South …
Head, age 26
Orangeburg-County, South Carolina · implied b. ~1914 — 3 household members
| Surname | Mack |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | Black |
| Age | 26 |
| Marital Status | Married |
| Birthplace | South Carolina |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Orangeburg |
| Occupation | Laborer |
| Industry | Farm |
| Class of Worker | PW |
| Hours Worked | 60 |
| Income (1939) | 285 |
| Highest Grade | No 1 |
| 1935 Residence | South Carolina |
| 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 John Mack across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Mack (~0.92 confidence). The pedigree spans 1 generation with 1 identified ancestor.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Mack
b. ~1887
Source father
● Household
· direct · ~0.92
This person
Anchor record
John Mack
Head · 1940 · age 26 · b. ~1914 · 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 — Orangeburg-County, South Carolina
Open full size
1940 US Federal Census — Orangeburg-County, South Carolina
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03829-00078)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Inez Reid | 14 | daughter | Laborer | South Carolina |
| 2 | John Henry Reid | 12 | son | — | South Carolina |
| 3 | Ethel Reid | 10 | daughter | — | South Carolina |
| 4 | Appie Fair | 46 | Head | Laborer | South Carolina |
| 5 | Ida Fair | 39 | wife | Laborer | South Carolina |
| 6 | Alberta Williams | 21 | step-daughter | Cook | South Carolina |
| 7 | Generia Kelly | 43 | Head | — | South Carolina |
| 8 | James Kelly | 17 | son | New Worker | South Carolina |
| 9 | Charlotte Kelly | 9 | daughter | — | South Carolina |
| 10 | Pernell Kelly | 7 | daughter | — | South Carolina |
| 11 | Ann Kelly | 5 | daughter | — | South Carolina |
| 12 | End Of Cassie Street Begins Stapleton St. | None | — | — | — |
| 13 | Emma Jennings | 33 | Head | Laborer | South Carolina |
| 14 | Rearlen Bradwell | 13 | daughter | — | South Carolina |
| 15 | Evelyn Jennings | 9 | daughter | — | South Carolina |
| 16 | Jessie Mae Jennings | 5 | daughter | — | South Carolina |
| 17 | Thomas Jennings | 4 | son | — | South Carolina |
| 18 | William Simmons | 2 | son | — | South Carolina |
| 19 | Idella Stokes | 30 | Head | Laborer | South Carolina |
| 20 | Junius Stokes | 11 | son | — | South Carolina |
| 21 | Roscoe Stokes | 10 | son | — | South Carolina |
| 22 | Minnie Lee Bradley | 12 | daughter | — | South Carolina |
| 23 | Alma Jameson | 38 | Head | — | South Carolina |
| 24 | Vernell Jameson | 12 | daughter | — | South Carolina |
| 25 | Rachel Gordon | 37 | Head | Cook | South Carolina |
| 26 | Beatrice Gordon | 15 | daughter | — | South Carolina |
| 27 | Monticella Gordon | 5 | grand-daughter | — | South Carolina |
| 28 | Viola Anderson | 40 | Head | Cook | South Carolina |
| 29 | Irene Anderson | 18 | daughter | Cook | South Carolina |
| 30 | Philip Anderson | 11 | son | — | South Carolina |
| 31 | John Mack THIS PERSON | 26 | Head | Laborer | South Carolina |
| 32 | Thelma Mack | 24 | wife | — | South Carolina |
| 33 | Vera Mack | 1 | daughter | — | South Carolina |
| 34 | Alec Wolfe | 30 | Head | Laborer | South Carolina |
| 35 | Daisy Wolfe | 27 | wife | Cook | South Carolina |
| 36 | Alec Jr. Wolfe | 9 | son | — | South Carolina |
| 37 | William Furgeson | 23 | Head | — | South Carolina |
| 38 | Mary Jane Furgeson | 59 | wife | — | South Carolina |
| 39 | Hershun Gordon | 39 | Head | Laborer | South Carolina |
| 40 | Bertha Gordon | 30 | wife | Cook | South Carolina |
Pedigree Summary
John
Gen 1 · 1 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)