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William Henderson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Mahoning-County, Ohio
Our Model Tree links this William Henderson across the 1930 and 1940 US Censuses in Mahoning-County, Ohio (XGBoost, ~Confirmed) — first a son (b.~1924), then head of a 11-person household.
Age 16
b. ~1924
Male
Son
Born: Ohio
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Mahoning-County, Ohio |
| Surname | Henderson |
| Given Name | William Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Youngstown |
| 1935 Residence (County) | Mahoning |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | No 5 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Township / Ward | Youngstown |
| Est. Birth Year | ~1924 |
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 William | Age | Birth yr |
|---|---|---|---|---|
| Ethel Henderson | Daughter | — | 17 | ~1923 |
| Margie Henderson | Daughter | — | 10 | ~1930 |
| Mildred Henderson | Daughter | — | 8 | ~1932 |
| Helen Henderson | Daughter | — | 12 | ~1928 |
| Florence Henderson | Daughter | — | 4 | ~1936 |
| Louise Henderson | Daughter | — | 19 | ~1921 |
| Ruth Henderson | Daughter | — | 15 | ~1925 |
| William Henderson | Head | — | 39 | ~1901 |
| William Henderson | Son | — | 16 | ~1924 |
| Paul Henderson | Son | — | 1 | ~1939 |
| Mamie Henderson | Spouse | — | 37 | ~1903 |
Census Appearances
1930
Mahoning, Ohio
Son, age 5
Mahoning, Ohio · implied b. ~1925 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Henderson |
| Given Name | William Jr |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Georgia |
| Mother's Birthplace | Georgia |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Mahoning-County, Ohio
Son, age 16
Mahoning-County, Ohio · implied b. ~1924 — 11 household members
| Surname | Henderson |
| Given Name | William Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Youngstown |
| 1935 Residence (County) | Mahoning |
| Income (1939) | 0 |
| Highest Grade | No 5 |
| 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 William Henderson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
William Henderson
Son · 1940 · age 16 · b. ~1924 · Ohio
★ You are viewing this record
Sibling
Louise Henderson
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Helen Henderson
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ethel Henderson
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Florence Henderson
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Paul Henderson
Sibling · 1940 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margie Henderson
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ruth Henderson
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mildred Henderson
Sibling · 1940 · age 8
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 — Mahoning-County, Ohio
Open full size
1940 US Federal Census — Mahoning-County, Ohio
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03268-00204)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Josephine Kitchen | 39 | Head | — | Missouri |
| 2 | Roy Kitchen | 41 | Lodger | Laborer | Tennessee |
| 3 | Julia Smith | 73 | Wife | Housekeeper | Alabama |
| 4 | William Grear | 57 | Head | Laborer | North Carolina |
| 5 | James Briggs | 24 | Head | Laborer | Alabama |
| 6 | Margaret Briggs | 27 | Wife | — | Alabama |
| 7 | Willie M. Briggs | 10 | Daughter | — | Alabama |
| 8 | Daisy Briggs | 9 | Daughter | — | Ohio |
| 9 | Florence Briggs | 7 | Daughter | — | Ohio |
| 10 | Henry Briggs | 6 | Son | — | Ohio |
| 11 | Lucille Briggs | 2 | Daughter | — | Ohio |
| 12 | Robert Briggs | 0 | Son | — | Ohio |
| 13 | Henry Gordon | 45 | Head | Laborer | Kansas |
| 14 | Lela Gordon | 43 | Wife | — | Georgia |
| 15 | Charles Jr. Ison | 47 | Head | Labour | Alabama |
| 16 | Lora Ison | 45 | Wife | — | Georgia |
| 17 | Stanley Bradly | 25 | Head | Laborer | New York |
| 18 | Dolly Bradly | 22 | Wife | — | Alabama |
| 19 | Florence Bradly | 2 | Daughter | — | Ohio |
| 20 | Emerson M. Cornwell | 45 | Head | Manager | Mississippi |
| 21 | Maud E. Cornwell | 40 | Wife | — | Illinois |
| 22 | Mitholymph Cornwell | 6 | Daughter | — | Ohio |
| 23 | William Henderson | 39 | Head | Janitor | Georgia |
| 24 | Mamie Henderson | 37 | Wife | — | Georgia |
| 25 | Louise Henderson | 19 | Daughter | — | Ohio |
| 26 | Ethel Henderson | 17 | Daughter | — | Ohio |
| 27 | William Jr. Henderson THIS PERSON | 16 | Son | — | Ohio |
| 28 | Ruth Henderson | 15 | Daughter | — | Ohio |
| 29 | Helen Henderson | 12 | Daughter | — | Ohio |
| 30 | Margie Henderson | 10 | Daughter | — | Ohio |
| 31 | Mildred Henderson | 8 | Daughter | — | Ohio |
| 32 | Florence Henderson | 4 | Daughter | — | Ohio |
| 33 | Paul Henderson | 1 | Son | — | Ohio |
| 34 | Virginia Willis | 49 | Head | — | Oklahoma |
| 35 | Edward Wright | 40 | Lodger | Laborer | North Carolina |
| 36 | Charles Cooper | 26 | Lodger | Laborer | Alabama |
| 37 | Gethsemanie Evans | 49 | Head | Laborer | Georgia |
| 38 | Maud E. Evans | 39 | Wife | — | Georgia |
| 39 | Wilma Evans | 16 | Daughter | — | Georgia |
| 40 | Beulah Evans | 15 | Daughter | — | 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)