JB
James Black — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Champaign-County, Ohio
Our Model Tree links this James Black across the 1930 and 1940 US Censuses in Champaign-County, Ohio (XGBoost, ~Confirmed) — first a son (b.~1925), then head of a 11-person household.
Age 15
b. ~1925
Male
Son
Born: Ohio
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Champaign-County, Ohio |
| Surname | Black |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Wayne Twp. |
| 1935 Residence (County) | Champaign |
| Additional Details | |
| Highest Grade | 7 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Township / Ward | Wayne Twp |
| Est. Birth Year | ~1925 |
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.
11 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| Ellen Black | Daughter | — | 18 | ~1922 |
| Betty Black | Daughter | — | 18 | ~1922 |
| Eva Black | Daughter | — | 13 | ~1927 |
| Jean Black | Daughter | — | 17 | ~1923 |
| Guy Black | Head | — | 58 | ~1882 |
| Terrence Black | Other | — | 3 | ~1937 |
| Richard Black | Son | — | 20 | ~1920 |
| Curtis Black | Son | — | 23 | ~1917 |
| James Black | Son | — | 15 | ~1925 |
| Billy Black | Son | — | 9 | ~1931 |
| Alba Black | Spouse | — | 44 | ~1896 |
Census Appearances
1930
Champaign, Ohio
Son, age 5
Champaign, Ohio · implied b. ~1925 — 11 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Black |
| Given Name | James H. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | West Virginia |
| Can Read/Write | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Champaign-County, Ohio
Son, age 15
Champaign-County, Ohio · implied b. ~1925 — 11 household members
| Surname | Black |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Wayne Twp. |
| 1935 Residence (County) | Champaign |
| Highest Grade | 7 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
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 Black across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
James Black
Son · 1940 · age 15 · b. ~1925 · Ohio
★ You are viewing this record
Sibling
Billy Black
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Betty Black
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Richard Black
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jean Black
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ellen Black
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Eva Black
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Curtis Black
Sibling · 1940 · age 23
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 — Champaign-County, Ohio
Open full size
1940 US Federal Census — Champaign-County, Ohio
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03037-00712)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | James Hadsell | 11 | Son | — | Ohio |
| 42 | Mary Ann Hadsell | 5 | Daughter | — | Ohio |
| 43 | Steve Brandyberry | 37 | Head | Laborer | Indiana |
| 44 | Evelyn Brandyberry | 33 | Wife | — | Ohio |
| 45 | Juanita Brandyberry | 12 | Daughter | — | Ohio |
| 46 | Marcella Brandyberry | 8 | Daughter | — | Ohio |
| 47 | Chandler Moody | 71 | Head | Farm Operator | Ohio |
| 48 | Elsie D. Moody | 54 | Wife | — | Ohio |
| 49 | Edgar Craig | 25 | Head | Farm Laborer | Ohio |
| 50 | Marie Craig | 23 | Wife | — | Ohio |
| 51 | Evelyn Craig | 4 | Daughter | — | Ohio |
| 52 | Darrel Craig | 1 | Son | — | Ohio |
| 53 | Guy Black | 58 | Head | Farm Operator | Ohio |
| 54 | Alba A. Black | 44 | Wife | — | West Virginia |
| 55 | Curtis Black | 23 | Son | Farm Laborer | Ohio |
| 56 | Richard Black | 20 | Son | Farm Laborer | Ohio |
| 57 | Betty Black | 18 | Daughter | — | Ohio |
| 58 | Terrence Black | 3 | Grandson | — | Ohio |
| 59 | Ellen Black | 18 | Daughter | — | Ohio |
| 60 | Jean Black | 17 | Daughter | — | Ohio |
| 61 | James Black THIS PERSON | 15 | Son | — | Ohio |
| 62 | Eva Black | 13 | Daughter | — | Ohio |
| 63 | Billy Black | 9 | Son | — | Ohio |
| 64 | Andy Parue | 52 | Head | Farm Operator | Ohio |
| 65 | Emma D. Parue | 49 | Wife | — | Ohio |
| 66 | William Mettler | 23 | Son-in-law | Factory Worker | Ohio |
| 67 | Naomi Mettler | 23 | Daughter | — | Ohio |
| 68 | John Hazelton | 81 | Head | — | Ohio |
| 69 | Margaret Hazelton | 82 | Sister | — | Ohio |
| 70 | Harold Bear | 37 | Head | Farm Operator | Ohio |
| 71 | Iona Bear | 28 | Wife | — | Ohio |
| 72 | Barbara Bear | 3 | Daughter | — | Ohio |
| 73 | Darlene Bear | 1 | Daughter | — | Ohio |
| 74 | Hazel Bear | 36 | Sister | — | Ohio |
| 75 | William Baker | 40 | Head | Farm Laborer | Ohio |
| 76 | Isabel A. Baker | 34 | Wife | — | Ohio |
| 77 | Harold Lee Baker | 11 | Son | — | Ohio |
| 78 | Earl Edwards | 56 | Head | Farm Operator | Ohio |
| 79 | Lehman Brandyberry | 69 | Head | Farm Laborer | Ohio |
| 80 | Harriet Brandyberry | 61 | Wife | — | Ohio |
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)