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John Arthur — 1940 US Census Record
Model Tree available1940 United States Federal Census · Darlington-County, South Carolina
Our Model Tree links this John Arthur across the 1920, 1930 and 1940 US Censuses in Darlington-County, South Carolina (XGBoost, ~Confirmed), with identified parents Duncan & Duncan — first a head (b.~1917), then head of a 5-person household.
Age 23
b. ~1917
Male
Head
Born: South Carolina
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Darlington-County, South Carolina |
| Surname | Arthur |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | Black |
| Age | 23 |
| Marital Status | Married |
| Birthplace | South Carolina |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Darlington |
| Additional Details | |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 48 |
| Income (1939) | 110 |
| Highest Grade | H 1 |
| 1935 Residence | South Carolina |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
| Occupation | Farmer |
| Township / Ward | Lydia |
| Est. Birth Year | ~1917 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Johnnie Arthur | Daughter | — | 3 | ~1937 |
| Gary Arthur | Son | — | 1 | ~1939 |
| Dewey Byrd | Other | — | 38 | ~1902 |
| Lillie Arthur | Spouse | — | 26 | ~1914 |
| John Arthur | Head | — | 23 | ~1917 |
Census Appearances
1920
Darlington, South …
Son, age 3
Darlington, South Carolina · implied b. ~1917 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Arthur |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 3 |
| 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
Darlington, South …
Son, age 13
Darlington, South Carolina · implied b. ~1917 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Arthur |
| Given Name | John |
| 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
Darlington-County, South …
Head, age 23
Darlington-County, South Carolina · implied b. ~1917 — 5 household members
| Surname | Arthur |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | Black |
| Age | 23 |
| Marital Status | Married |
| Birthplace | South Carolina |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Darlington |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 48 |
| Income (1939) | 110 |
| Highest Grade | H 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 Arthur across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Duncan Arthur (~0.92 confidence) and father Duncan Arthur (~0.92 confidence) and mother Elmira Arthur (~0.92 confidence) and mother Elmira Arthur (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Duncan Arthur
b. ~1898
Source father
● Household
· direct · ~0.92
Father
Duncan Arthur
b. ~1878
Source father
● Household
· direct · ~0.92
Mother
Elmira Arthur
b. ~1880
Source mother
● Household
· direct · ~0.92
Mother
Elmira Arthur
b. ~1903
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Arthur
Head · 1940 · age 23 · b. ~1917 · 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 — Darlington-County, South Carolina
Open full size
1940 US Federal Census — Darlington-County, South Carolina
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03803-00051)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Joseph Jr. Mccaskill | 11 | Son | — | South Carolina |
| 2 | Bettie Mccaskill | 9 | Daughter | — | South Carolina |
| 3 | Harold Mccaskill | 7 | Son | — | South Carolina |
| 4 | Julius Ross | 30 | Head | Laborer | South Carolina |
| 5 | Queen E. Ross | 23 | Wife | — | South Carolina |
| 6 | Rosa M. Ross | 9 | Daughter | — | South Carolina |
| 7 | Francis Ross | 7 | Daughter | — | South Carolina |
| 8 | Girline Ross | 6 | Daughter | — | South Carolina |
| 9 | Kathaline Ross | 2 | Daughter | — | South Carolina |
| 10 | John Arthur THIS PERSON | 23 | Head | Farmer | South Carolina |
| 11 | Lillie M. Arthur | 26 | Wife | — | South Carolina |
| 12 | Johnnie M. Arthur | 3 | Daughter | — | South Carolina |
| 13 | Gary Arthur | 1 | Son | — | South Carolina |
| 14 | Dewey Byrd | 38 | Lodger | Farmer | South Carolina |
| 15 | Van (X) Byrd | 34 | Head | Farmer | South Carolina |
| 16 | Charlotte Byrd | 25 | Wife | — | South Carolina |
| 17 | Ranem A. Byrd | 3 | Son | — | South Carolina |
| 18 | Moses Harrison | 47 | Head | Farmer | South Carolina |
| 19 | Gladys Harrison | 44 | Wife | — | South Carolina |
| 20 | Asa Fry | 48 | Head | Farmer | South Carolina |
| 21 | Meta Fry | 41 | Wife | — | South Carolina |
| 22 | Mattie Baker | 15 | Niece | Laborer | South Carolina |
| 23 | Emma Baker | 6 | Niece | — | South Carolina |
| 24 | Grady (X) Pope | 26 | Head | Farmer | South Carolina |
| 25 | Jessie M. Pope | 23 | Wife | — | South Carolina |
| 26 | Blanche Bradshaw | 15 | Cousin | — | South Carolina |
| 27 | Howard Leader | 32 | Head | Farmer | South Carolina |
| 28 | Maggie Leader | 29 | Wife | — | South Carolina |
| 29 | William Leader | 5 | Son | — | South Carolina |
| 30 | Bettie J. Leader | 1 | Daughter | — | South Carolina |
| 31 | Hale Dudley | 34 | Head | Farmer | South Carolina |
| 32 | Gladys Dudley | 25 | Wife | — | South Carolina |
| 33 | Geraldine Dudley | 8 | Daughter | — | South Carolina |
| 34 | Joan Dudley | 6 | Daughter | — | South Carolina |
| 35 | William R. Dudley | 3 | Son | — | South Carolina |
| 36 | Sister Christine | None | F | Farm | — |
| 37 | Thomas Jones | 67 | Head | — | South Carolina |
| 38 | Janie Jones | 65 | Wife | — | South Carolina |
| 39 | William Leader | 44 | Head | Farmer | South Carolina |
| 40 | Oneta Leader | 42 | Wife | — | South Carolina |
Pedigree Summary
John
Gen 1 · 4 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)