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Leroy Williams — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Jefferson-County, Missouri
Our Model Tree links this Leroy Williams across the 1930 and 1940 US Censuses in Jefferson-County, Missouri (XGBoost, ~Confirmed) — first a son (b.~1926), then head of a 8-person household.
Age 14
b. ~1926
Male
Son
Born: Missouri
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Jefferson-County, Missouri |
| Surname | Williams |
| Given Name | Leroy Jr |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Missouri |
| 1935 Residence (City) | Herculaneum Town |
| 1935 Residence (County) | Jefferson |
| Additional Details | |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
| Township / Ward | Herculaneum Town |
| Est. Birth Year | ~1926 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Leroy | Age | Birth yr |
|---|---|---|---|---|
| Evard Williams | Son | — | 3 | ~1937 |
| Bernice Williams | Daughter | — | 15 | ~1925 |
| Donald Williams | Son | — | 11 | ~1929 |
| Harold Williams | Son | — | ~1940 | |
| Norma Williams | Daughter | — | 7 | ~1933 |
| Leroy Williams | Head | — | 51 | ~1889 |
| Leroy Williams | Son | — | 14 | ~1926 |
| Claude Williams | Spouse | — | 41 | ~1899 |
Census Appearances
1930
Jefferson, Missouri
Son, age 4
Jefferson, Missouri · implied b. ~1926 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Williams |
| Given Name | LeRoy Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Missouri |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Missouri |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
1940
Jefferson-County, Missouri
Son, age 14
Jefferson-County, Missouri · implied b. ~1926 — 8 household members
| Surname | Williams |
| Given Name | Leroy Jr |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Missouri |
| 1935 Residence (City) | Herculaneum Town |
| 1935 Residence (County) | Jefferson |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
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 Leroy Williams across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Leroy Williams
Son · 1940 · age 14 · b. ~1926 · Missouri
★ You are viewing this record
Sibling
Evard Williams
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Donald Williams
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Norma Williams
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Harold Williams
Sibling · 1940 · age
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Bernice Williams
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 — Jefferson-County, Missouri
Open full size
1940 US Federal Census — Jefferson-County, Missouri
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02119-00336)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Gertrude Leonard | 26 | Wife | — | Missouri |
| 42 | Warren Leonard | 22 | son | Carpenter | Missouri |
| 43 | Henry L. Leonard | 21 | son | Teacher | Missouri |
| 44 | Julia M. Leonard | 18 | daughter | — | Missouri |
| 45 | Ruth M. Leonard | 16 | daughter | — | Missouri |
| 46 | Milton P. Leonard | 79 | father | — | Missouri |
| 47 | Leroy D. Williams | 51 | Head | Smelter Worker | Missouri |
| 48 | Claude Williams | 41 | wife | — | Missouri |
| 49 | Bernice Williams | 15 | daughter | — | Missouri |
| 50 | Leroy Jr Williams THIS PERSON | 14 | son | — | Missouri |
| 51 | Donald Williams | 11 | son | — | Missouri |
| 52 | Norma Williams | 7 | daughter | — | Missouri |
| 53 | Evard Williams | 3 | son | — | Missouri |
| 54 | Harold D. Williams | 0 | son | — | Missouri |
| 55 | Rose Shelley | 55 | Head | — | Missouri |
| 56 | Chester Shelley | 35 | son | Laborer | Missouri |
| 57 | Glenwood Shelley | 28 | son | Furnace Man | Missouri |
| 58 | Woodrow Shelley | 22 | son | Yard Man | Missouri |
| 59 | Margarete Kaenter | 33 | daughter | — | Missouri |
| 60 | Frank Kaenter | 36 | son-in-law | Time Keeper | Missouri |
| 61 | Mary Mackley | 92 | Mother | — | Ohio |
| 62 | Aloys Wagner | 53 | Head | Master Mechanic | Luxemburg |
| 63 | Lottie Wagner | 48 | Wife | — | Missouri |
| 64 | Adalene Wagner | 27 | daughter | — | Missouri |
| 65 | Alberta Wagner | 22 | daughter | Postal Clerk | Missouri |
| 66 | Vincent Wagner | 17 | son | — | Missouri |
| 67 | Victor Wagner | 15 | son | — | Missouri |
| 68 | Laura Scaggs | 51 | Head | — | Missouri |
| 69 | Ruth Scaggs | 18 | daughter | Ironer | Missouri |
| 70 | Howard Scaggs | 15 | son | — | Missouri |
| 71 | George Jr Flieg | 23 | Head | Machinist | Missouri |
| 72 | Esther Flieg | 19 | Wife | — | Missouri |
| 73 | George M. Flieg | 0 | son | — | Missouri |
| 74 | Shirley Bryant | 45 | Head | Scale House Foreman | Missouri |
| 75 | Elda Bryant | 43 | Wife | — | Missouri |
| 76 | Shirley Jr Bryant | 16 | son | — | Missouri |
| 77 | Perry Byington | 60 | Head | Blaster Foreman | Missouri |
| 78 | May Byington | 53 | Wife | — | Missouri |
| 79 | Marie Byington | 13 | daughter | — | Missouri |
| 80 | Clarence Partney | 34 | Head | Furnace Man | Missouri |
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)