WG
William Gross — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Los-Angeles-County, California
Our Model Tree links this William Gross across the 1930 and 1940 US Censuses in Los-Angeles-County, California (XGBoost, ~Confirmed) — first a son (b.~1922), then head of a 10-person household.
Age 18
b. ~1922
Male
Son
Born: Wisconsin
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Los-Angeles-County, California |
| Surname | Gross |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| 1935 Residence (City) | Los Angeles City |
| 1935 Residence (County) | Los Angeles |
| Additional Details | |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
| Township / Ward | Los Angeles City |
| Est. Birth Year | ~1922 |
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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| George Gross | Son | — | 23 | ~1917 |
| Robert Gross | Son | — | 22 | ~1918 |
| Olive Gross | Spouse | — | 46 | ~1894 |
| Vincent Gross | Son | — | 14 | ~1926 |
| Donald Gross | Son | — | 16 | ~1924 |
| Alfred Gross | Head | — | 55 | ~1885 |
| William Gross | Son | — | 18 | ~1922 |
| David Gross | Son | — | 8 | ~1932 |
| Oliver Gross | Son | — | 20 | ~1920 |
| Maryjane Gross | Daughter | — | 10 | ~1930 |
Census Appearances
1930
Los Angeles, …
Son, age 8
Los Angeles, California · implied b. ~1922 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Gross |
| Given Name | William J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| Father's Birthplace | Wisconsin |
| Mother's Birthplace | Wisconsin |
| Can Read/Write | Yes |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
1940
Los-Angeles-County, California
Son, age 18
Los-Angeles-County, California · implied b. ~1922 — 10 household members
| Surname | Gross |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| 1935 Residence (City) | Los Angeles City |
| 1935 Residence (County) | Los Angeles |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
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 Gross across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
William Gross
Son · 1940 · age 18 · b. ~1922 · California
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Sibling
Vincent Gross
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
David Gross
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Oliver Gross
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Gross
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
George Gross
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Maryjane Gross
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Donald Gross
Sibling · 1940 · age 16
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 — 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-t0627-00407-00476)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Lora D. Friesel | 48 | Head | Ma | Pennsylvania |
| 2 | Ruth Friesel | 20 | Daughter | Ma | Pennsylvania |
| 3 | George Friesel | 20 | Son | Ma | Pennsylvania |
| 4 | Robert B. Wright | 46 | Head | Scenic Artist | California |
| 5 | Margaret M. Wright | 44 | Wife | — | Illinois |
| 6 | Robert S. Wright | 21 | Son | — | California |
| 7 | Ted Duncan | 37 | Head | Arranger | California |
| 8 | Golda Duncan | 30 | Wife | Ma | Oregon |
| 9 | Roger Duncan | 5 | Son | — | California |
| 10 | Alfred H. Gross | 55 | Head | Designer | Wisconsin |
| 11 | Olive M. Gross | 46 | Wife | — | Wisconsin |
| 12 | George Gross | 23 | Son | Blueprint Operator | Wisconsin |
| 13 | Robert Gross | 22 | Son | — | Wisconsin |
| 14 | Oliver Gross | 20 | Son | — | Wisconsin |
| 15 | William Gross THIS PERSON | 18 | Son | — | Wisconsin |
| 16 | Donald Gross | 16 | Son | — | California |
| 17 | Vincent Gross | 14 | Son | — | California |
| 18 | Maryjane Gross | 10 | Daughter | — | California |
| 19 | David Gross | 8 | Son | — | California |
| 20 | Ernest O. Mcpherson | 42 | Head | Corporation Treasurer | Minnesota |
| 21 | Irene M. Mcpherson | 30 | Wife | — | Missouri |
| 22 | Clive P. Thurtle | 51 | Head | Sales Department | Michigan |
| 23 | Gladys Thurtle | 48 | Wife | — | Utah |
| 24 | Harriet Thurtle | 15 | Daughter | — | California |
| 25 | Preston Thurtle | 12 | Son | — | California |
| 26 | Joseph G. O'Brien | 51 | Head | Porter | Canada English |
| 27 | Mary O'Brien | 49 | Wife | — | Canada English |
| 28 | Harry Lindell | 51 | Head | Rancher | Utah |
| 29 | Catherine Lindell | 51 | Wife | — | Utah |
| 30 | Drew D. Lindell | 28 | Son | Rancher Worker | Utah |
| 31 | Jack Lindell | 24 | Son | Sales Clerk | Utah |
| 32 | Janet Lindell | 21 | Daughter | Sales Clerk | Utah |
| 33 | Matthew Regan | 45 | Head | Accountant | Minnesota |
| 34 | Winifred Regan | 41 | Wife | — | S. Dakota |
| 35 | Donlee Regan | 5 | Son | — | California |
| 36 | Janet Regan | 1 | Daughter | — | California |
| 37 | Dorothy Hodgkinson | 20 | Housekeeper | Housekeeper | England |
| 38 | P. Weston Hammond | 38 | Head | Digital Designer | New York |
| 39 | Evelyn M. Hammond | 38 | Wife | — | New York |
| 40 | Robert Hammond | 13 | Son | — | New York |
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)