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Lawrence Williams — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Plaquemines-County, Louisiana
Our Model Tree links this Lawrence Williams across the 1930 and 1940 US Censuses in Plaquemines-County, Louisiana (XGBoost, ~Confirmed) — first a son (b.~1930), then head of a 13-person household.
Age 10
b. ~1930
Male
Son
Born: Louisiana
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Plaquemines-County, Louisiana |
| Surname | Williams |
| Given Name | Lawrence |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Louisiana |
| 1935 Residence (City) | Burwood |
| 1935 Residence (County) | Plaquemines |
| Additional Details | |
| Highest Grade | No 3 |
| 1935 Residence | Same house |
| Birth State | Louisiana |
| Birth Country | United States |
| Birthplace (normalized) | louisiana |
| Township / Ward | Burwood |
| Est. Birth Year | ~1930 |
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.
13 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Lawrence | Age | Birth yr |
|---|---|---|---|---|
| Herbert Williams | Son | — | 16 | ~1924 |
| Josephine Williams | Spouse | — | 38 | ~1902 |
| Melvin Williams | Son | — | 4 | ~1936 |
| Nora Mayar | Daughter | — | 18 | ~1922 |
| Vivian Williams | Daughter | — | 5 | ~1935 |
| Nola Williams | Daughter | — | 1 | ~1939 |
| Adolph Mayar | Other | — | 34 | ~1906 |
| Leon Williams | Son | — | 14 | ~1926 |
| Lawrence Williams | Son | — | 10 | ~1930 |
| Dalton Williams | Son | — | 19 | ~1921 |
| Harry Williams | Son | — | 7 | ~1933 |
| Walter Williams | Head | — | 46 | ~1894 |
| Shirley Williams | Daughter | — | 2 | ~1938 |
Census Appearances
1930
Plaquemines, Louisiana
Son, age 1
Plaquemines, Louisiana · implied b. ~1929 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Williams |
| Given Name | Lawrence |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Louisiana |
| Father's Birthplace | Louisiana |
| Mother's Birthplace | Louisiana |
| Occupation | none |
| Birth State | Louisiana |
| Birth Country | United States |
| Birthplace (normalized) | louisiana |
1940
Plaquemines-County, Louisiana
Son, age 10
Plaquemines-County, Louisiana · implied b. ~1930 — 13 household members
| Surname | Williams |
| Given Name | Lawrence |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Louisiana |
| 1935 Residence (City) | Burwood |
| 1935 Residence (County) | Plaquemines |
| Highest Grade | No 3 |
| 1935 Residence | Same house |
| Birth State | Louisiana |
| Birth Country | United States |
| Birthplace (normalized) | louisiana |
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 Lawrence Williams across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Lawrence Williams
Son · 1940 · age 10 · b. ~1930 · Louisiana
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Sibling
Melvin Williams
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dalton Williams
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Nola Williams
Sibling · 1940 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Shirley Williams
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Herbert Williams
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Leon Williams
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Harry Williams
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Nora Mayar
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Vivian Williams
Sibling · 1940 · age 5
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 — Plaquemines-County, Louisiana
Open full size
1940 US Federal Census — Plaquemines-County, Louisiana
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01439-00143)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Eva Chartier | 16 | daughter | — | Louisiana |
| 2 | Adam Chartier | 13 | son | — | Louisiana |
| 3 | Jerry Chartier | 9 | son | — | Louisiana |
| 4 | Joseph Chartier | 7 | son | — | Louisiana |
| 5 | Allan Chartier | 3 | son | — | Louisiana |
| 6 | Carl Chartier | 2 | son | — | Louisiana |
| 7 | Walter Williams | 46 | Head | Trapper | Louisiana |
| 8 | Josephine Williams | 38 | Wife | — | Louisiana |
| 9 | Dalton Williams | 19 | son | Mess Boy | Louisiana |
| 10 | Herbert Williams | 16 | son | Trapper | Louisiana |
| 11 | Leon Williams | 14 | son | — | Louisiana |
| 12 | Lawrence Williams THIS PERSON | 10 | son | — | Louisiana |
| 13 | Harry Williams | 7 | son | — | Louisiana |
| 14 | Vivian Williams | 5 | daughter | — | Louisiana |
| 15 | Melvin Williams | 4 | son | — | Louisiana |
| 16 | Shirley Williams | 2 | daughter | — | Louisiana |
| 17 | Nola Williams | 1 | daughter | — | Louisiana |
| 18 | Adolph Mayar | 34 | son-in-law | Laborer | Louisiana |
| 19 | Nora Mayar | 18 | daughter | — | Louisiana |
| 20 | Martin Hingle | 39 | Head | Trapper | Louisiana |
| 21 | Irene O. Hingle | 20 | Wife | — | Louisiana |
| 22 | Martin Hingle | 6 | son | — | Louisiana |
| 23 | Roland Hingle | 2 | son | — | Louisiana |
| 24 | Jeremie Hingle | 1 | daughter | — | Louisiana |
| 25 | John H. Adams | 44 | Lodger | Laborer | Alabama |
| 26 | Robert Beck | 33 | Lodger | Laborer | Pennsylvania |
| 27 | Jack Brody | 28 | Lodger | Laborer | Tennessee |
| 28 | William Burnett | 23 | Lodger | Laborer | Louisiana |
| 29 | Irvin Cohen | 25 | Lodger | Medical Doctor | Louisiana |
| 30 | Darlow Gilliam | 42 | Lodger | Surveyman | Louisiana |
| 31 | Paul Dubois | 30 | Lodger | Laborer | Louisiana |
| 32 | Ira Elliott | 31 | Lodger | Surveyman | Louisiana |
| 33 | John Enna | 25 | Lodger | Laborer | Louisiana |
| 34 | Thomas Barr | 23 | Lodger | Housing Engineer | Mississippi |
| 35 | Pete Bernardo | 26 | Lodger | Laborer | Louisiana |
| 36 | Jenkins Edward | 50 | Lodger | Laborer | Indiana |
| 37 | James Gisnes | 25 | Lodger | Motor Boat Operator | Louisiana |
| 38 | Louis Guidry | 25 | Lodger | Laborer | Louisiana |
| 39 | Adair Harvey | 25 | Lodger | Laborer | Louisiana |
| 40 | Otis Haynes | 21 | Lodger | Under Clerk | Louisiana |
Related Census Records
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)