WG
William Grant — 1940 US Census Record
Model Tree available1940 United States Federal Census · Los-Angeles-County, California
Our Model Tree links this William Grant across the 1920, 1930 and 1940 US Censuses in Los-Angeles-County, California (XGBoost, ~Confirmed), with identified parents William & Laura — first a head (b.~1908), then head of a 4-person household.
Age 32
b. ~1908
Male
Head
Born: Pennsylvania
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Los-Angeles-County, California |
| Surname | Grant |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 32 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Los Angeles City |
| 1935 Residence (County) | Los Angeles |
| Additional Details | |
| Occupation | Machinist |
| Industry | Air Craft |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1800 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Machinist |
| Township / Ward | Los Angeles City |
| Est. Birth Year | ~1908 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| William Grant | Head | — | 32 | ~1908 |
| William Grant | Son | — | 5 | ~1935 |
| Robert Grant | Son | — | 4 | ~1936 |
| Margarette Grant | Spouse | — | 31 | ~1909 |
Census Appearances
1920
Los Angeles, …
Son, age 11
Los Angeles, California · implied b. ~1909 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Grant |
| Given Name | William Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Pennsylvania |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Los Angeles, …
Son, age 21
Los Angeles, California · implied b. ~1909 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Grant |
| Given Name | William J |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Age at First Marriage | 20 |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Pennsylvania |
| Occupation | Machinist |
| Industry | Oil tools |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Los-Angeles-County, California
Head, age 32
Los-Angeles-County, California · implied b. ~1908 — 4 household members
| Surname | Grant |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 32 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Los Angeles City |
| 1935 Residence (County) | Los Angeles |
| Occupation | Machinist |
| Industry | Air Craft |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1800 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
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 Grant across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father William Grant (~0.92 confidence) and mother Laura Grant (~0.92 confidence) and mother Lucia Grant (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
William Grant
b. ~1886
Source father
● Household
· direct · ~0.92
Mother
Laura Grant
b. ~1893
Source mother
● Household
· direct · ~0.92
Mother
Lucia Grant
b. ~1895
Source mother
● Household
· direct · ~0.92
This person
Anchor record
William Grant
Head · 1940 · age 32 · b. ~1908 · California
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Los-Angeles-County, California
Open full size
1940 US Federal Census — Los-Angeles-County, California
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00383-00383)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Jane E. Conlin | 44 | Head | Teacher | Illinois |
| 42 | Michael Conlin | 75 | Brother | — | Ireland |
| 43 | Sabene Conlin | 73 | Brother | — | England |
| 44 | William H. Phillips | 35 | Head | Blueprinter | New York |
| 45 | Iois E. Phillips | 31 | Wife | Clerical Typist | New York |
| 46 | David A. Phillips | 2 | Son | — | California |
| 47 | Marian Phillips | 0 | Daughter | — | California |
| 48 | Mary Barrie | 43 | Housekeeper | Housekeeper | Scotland |
| 49 | Charles Peters | 42 | Head | Contractor | Illinois |
| 50 | Margaret Peters | 37 | Wife | — | California |
| 51 | Eugene Peters | 15 | Son | — | California |
| 52 | Wayne Peters | 14 | Son | — | California |
| 53 | Margie L. Peters | 2 | Daughter | — | California |
| 54 | Douglas Peters | 7 | Nephew | — | California |
| 55 | Robert W. Tomlinson | 35 | Head | Salesman | Iowa |
| 56 | Helen Tomlinson | 29 | Wife | — | Colorado |
| 57 | Sandra V. Tomlinson | 3 | Daughter | — | California |
| 58 | George Longthorn | 34 | Head | Accountant | Pennsylvania |
| 59 | Eila Longthorn | 38 | Wife | — | Illinois |
| 60 | Extra Line Longthorn | None | — | — | — |
| 61 | Maurice Hauser | 39 | Head | Manager | Iowa |
| 62 | Inez Hauser | 39 | Wife | Clerical Clerk | Texas |
| 63 | Thomas Hauser | 12 | Son | — | California |
| 64 | Frank Mccafferty | 36 | Head | Tool Grinder | New York |
| 65 | Jennie Mccafferty | 34 | Wife | Stenographer | Hungary |
| 66 | Dorothy Mccafferty | 9 | Daughter | — | Oregon |
| 67 | Arthur Chapman | 39 | Head | Salesman | California |
| 68 | Bertha Chapman | 38 | Wife | — | California |
| 69 | Garner Kaepke | 31 | Head | Foreman | Indiana |
| 70 | Pearl Kaepke | 29 | Wife | — | Kansas |
| 71 | Donna Kaepke | 8 | Daughter | — | California |
| 72 | Nancy Kaepke | 3 | Daughter | — | California |
| 73 | William Grant THIS PERSON | 32 | Head | Machinist | Pennsylvania |
| 74 | Margarette Grant | 31 | Wife | — | Ohio |
| 75 | William Grant | 5 | Son | — | California |
| 76 | Robert Grant | 4 | Son | — | California |
| 77 | James F. Gillum | 37 | Head | Projectionist | New Mexico |
| 78 | Blanche Gillum | 32 | Wife | — | Kansas |
| 79 | Gunn Ely F. Gillum | 52 | Uncle | Hotel Clerk | Mississippi |
| 80 | William A. Wann | 54 | Head | Foreman | Scotland |
Pedigree Summary
William
Gen 1 · 3 parents
~0.92
Max depth 4 (1900–1950 window)
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)