JC
James Cowan — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Mccormick-County, South Carolina
Our Model Tree links this James Cowan across the 1930 and 1940 US Censuses in Mccormick-County, South Carolina (XGBoost, ~Confirmed) — first a son (b.~1916), then head of a 12-person household.
Age 24
b. ~1916
Male
Son
Born: South Carolina
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Mccormick-County, South Carolina |
| Surname | Cowan |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 24 |
| Marital Status | Married |
| Birthplace | South Carolina |
| 1935 Residence (City) | Bordeaux |
| 1935 Residence (County) | McCormick |
| Additional Details | |
| Occupation | Laborer |
| Industry | W.P.A Project |
| Class of Worker | GW |
| Hours Worked | 12 |
| Income (1939) | 0 |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
| Occupation | Laborer |
| Township / Ward | Bordeaux |
| Est. Birth Year | ~1916 |
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.
12 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| Marcett Brown | Daughter | — | 22 | ~1918 |
| Claude Cowan | Son | — | 15 | ~1925 |
| James Cowan | Son | — | 24 | ~1916 |
| Lorenzo Brown | Other | — | 3 | ~1937 |
| Carl Cowan | Son | — | 15 | ~1925 |
| Herbert Brown | Other | — | 26 | ~1914 |
| Lela Cowan | Spouse | — | 48 | ~1892 |
| Bonnie Brown | Daughter | — | 1 | ~1939 |
| Jim Cowan | Head | — | 67 | ~1873 |
| Elvie Cowan | Other | — | 23 | ~1917 |
| Charles Cowan | Other | — | 2 | ~1938 |
| Robert Cowan | Other | — | ~1940 |
Census Appearances
1930
Mccormick, South …
Son, age 17
Mccormick, South Carolina · implied b. ~1913 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cowan |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 17 |
| Marital Status | Single |
| Birthplace | South Carolina |
| Father's Birthplace | South Carolina |
| Mother's Birthplace | South Carolina |
| Occupation | Laborer |
| Industry | On farm |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
1940
Mccormick-County, South …
Son, age 24
Mccormick-County, South Carolina · implied b. ~1916 — 12 household members
| Surname | Cowan |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 24 |
| Marital Status | Married |
| Birthplace | South Carolina |
| 1935 Residence (City) | Bordeaux |
| 1935 Residence (County) | McCormick |
| Occupation | Laborer |
| Industry | W.P.A Project |
| Class of Worker | GW |
| Hours Worked | 12 |
| Income (1939) | 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 James Cowan across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
James Cowan
Son · 1940 · age 24 · b. ~1916 · South Carolina
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Sibling
Bonnie Brown
Sibling · 1940 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Claude Cowan
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Marcett Brown
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Carl Cowan
Sibling · 1940 · age 15
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 — Mccormick-County, South Carolina
Open full size
1940 US Federal Census — Mccormick-County, South Carolina
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03824-00082)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Lee Harvey | 18 | Head | Laborer | South Carolina |
| 42 | Mattie Harvey | 43 | Mother | — | South Carolina |
| 43 | Estelle Harvey | 12 | Granddaughter | — | South Carolina |
| 44 | Curry Jr. Harvey | 10 | Grandson | — | South Carolina |
| 45 | Andie Willis | 37 | Head | Laborer | South Carolina |
| 46 | Louise Willis | 35 | Wife | — | South Carolina |
| 47 | William Willis | 14 | Son | — | South Carolina |
| 48 | Earnest Willis | 12 | Son | — | South Carolina |
| 49 | Bettie Jean Willis | 8 | Daughter | — | South Carolina |
| 50 | Bonnie Weeks | 62 | Head | Farmer | South Carolina |
| 51 | Mamie Mae Weeks | 37 | Wife | — | South Carolina |
| 52 | Annie Mae Weeks | 4 | Daughter | — | South Carolina |
| 53 | Bobby Lee Weeks | 3 | Son | — | South Carolina |
| 54 | Jim Cowan | 67 | Head | Farmer | South Carolina |
| 55 | Lela Cowan | 48 | Wife | — | South Carolina |
| 56 | Carl Cowan | 15 | Son | Laborer | South Carolina |
| 57 | Claude Cowan | 15 | Son | — | South Carolina |
| 58 | James Cowan THIS PERSON | 24 | Son | Laborer | South Carolina |
| 59 | Elvie Cowan | 23 | Daughter-in-law | — | South Carolina |
| 60 | Charles Leslie Cowan | 2 | Grandson | — | South Carolina |
| 61 | Robert Garrett Cowan | 0 | Grandson | — | South Carolina |
| 62 | Herbert Brown | 26 | Son-in-law | Laborer | South Carolina |
| 63 | Marcett Brown | 22 | Daughter | — | South Carolina |
| 64 | Lorenzo Brown | 3 | Grandson | — | South Carolina |
| 65 | Bonnie Brown | 1 | Daughter | — | South Carolina |
| 66 | Carl Willis | 41 | Head | Tenant | South Carolina |
| 67 | Alma Willis | 42 | Wife | — | South Carolina |
| 68 | Harold Carl Willis | 25 | Son | Laborer | South Carolina |
| 69 | Helen Willis | 17 | Daughter-in-law | — | South Carolina |
| 70 | Dennis Willis | 14 | Son | — | South Carolina |
| 71 | Paul Willis | 22 | Head | Laborer | South Carolina |
| 72 | Helen Willis | 22 | Wife | — | South Carolina |
| 73 | Patricia Ann Willis | 0 | Daughter | — | South Carolina |
| 74 | Will Curran | 39 | Head | Tenant | South Carolina |
| 75 | Lois Curran | 33 | Wife | — | South Carolina |
| 76 | Mary Curran | 16 | Daughter | — | South Carolina |
| 77 | Doris Curran | 14 | Daughter | — | South Carolina |
| 78 | J. Willie Curran | 11 | Son | — | South Carolina |
| 79 | James Thomas Curran | 8 | Son | — | South Carolina |
| 80 | Rufus Curran | 6 | 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)