WM
William Mooney — 1940 US Census Record
Model Tree available1940 United States Federal Census · Los-Angeles-County, California
Our Model Tree links this William Mooney across the 1920, 1930 and 1940 US Censuses in Los-Angeles-County, California (XGBoost, ~Confirmed), with identified parents J & Sarah — first a head (b.~1891), then head of a 5-person household.
Age 49
b. ~1891
Male
Head
Born: Washington
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Los-Angeles-County, California |
| Surname | Mooney |
| Given Name | William A |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| Birthplace | Washington |
| 1935 Residence (City) | Los Angeles City |
| 1935 Residence (County) | Los Angeles |
| Additional Details | |
| Occupation | Asst. Attorney Comptroller |
| Industry | City |
| Class of Worker | GW |
| Hours Worked | 44 |
| Income (1939) | 1980 |
| Highest Grade | C 4 |
| 1935 Residence | Same house |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
| Occupation | Asst. Attorney Comptroller |
| Township / Ward | Los Angeles City |
| Est. Birth Year | ~1891 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Mary Mooney | Spouse | — | 49 | ~1891 |
| Jack Mooney | Son | — | 17 | ~1923 |
| William Mooney | Son | — | 9 | ~1931 |
| William Mooney | Head | — | 49 | ~1891 |
| Marilyn Mooney | Daughter | — | 12 | ~1928 |
Census Appearances
1920
Los Angeles, …
Son, age 29
Los Angeles, California · implied b. ~1891 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mooney |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Single |
| Birthplace | Washington |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Pennsylvania |
| Occupation | Laborer |
| Industry | County |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
1930
Los Angeles, …
Head, age 39
Los Angeles, California · implied b. ~1891 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mooney |
| Given Name | William A |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | Washington |
| Age at First Marriage | 31 |
| Father's Birthplace | Wash Free State |
| Mother's Birthplace | Pennsylvania |
| Occupation | Stationary Engineer |
| Industry | County |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 50 |
| Radio Set | R |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
1940
Los-Angeles-County, California
Head, age 49
Los-Angeles-County, California · implied b. ~1891 — 5 household members
| Surname | Mooney |
| Given Name | William A |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| Birthplace | Washington |
| 1935 Residence (City) | Los Angeles City |
| 1935 Residence (County) | Los Angeles |
| Occupation | Asst. Attorney Comptroller |
| Industry | City |
| Class of Worker | GW |
| Hours Worked | 44 |
| Income (1939) | 1980 |
| Highest Grade | C 4 |
| 1935 Residence | Same house |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
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 Mooney across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father J Mooney (~0.92 confidence) and mother Sarah Mooney (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
J Mooney
b. ~1852
Source father
● Household
· direct · ~0.92
Mother
Sarah Mooney
b. ~1859
Source mother
● Household
· direct · ~0.92
This person
Anchor record
William Mooney
Head · 1940 · age 49 · b. ~1891 · 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-t0627-00408-00045)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Jess B Stuart | 63 | Head | Salesman | Missouri |
| 2 | Bertha G Stuart | 57 | Wife | — | Missouri |
| 3 | Harry F Dietrich | 32 | Head | Doctor | Arizona |
| 4 | Eleanor Dietrich | 26 | Wife | — | Maine |
| 5 | Karen Dietrich | 3 | Daughter | — | — |
| 6 | Parker W Oliver | 31 | Head | Film Technician | New York |
| 7 | Valerie B Oliver | 27 | Wife | — | Massachusetts |
| 8 | Robert B Oliver | 4 | Son | — | — |
| 9 | Lawrence Tindall | 49 | Head | Salesman | Kansas |
| 10 | Laurencia Tindall | 48 | Wife | — | Missouri |
| 11 | Robenson A Reid | 39 | Head | Manager | Canada |
| 12 | Mallie E Reid | 36 | Wife | — | Colorado |
| 13 | Eugene S Inge | 57 | Head | Salesman | Texas |
| 14 | Audrey P Inge | 37 | Wife | — | Illinois |
| 15 | William E Inge | 15 | Son | — | California |
| 16 | M. Allen Deane | 60 | Head | Salesman | Canada |
| 17 | Mabel F Deane | 60 | Wife | — | Canada |
| 18 | Mary Stout | 79 | Lodger | — | Pennsylvania |
| 19 | Wallace A Glasscock | 36 | Head | Salesman | California |
| 20 | Florence G Glasscock | 38 | Wife | — | Ohio |
| 21 | Barbara M Glasscock | 10 | Daughter | — | California |
| 22 | William A Glasscock | 9 | Son | — | California |
| 23 | Frances C Flick | 48 | Sister | Bookkeeper | Ohio |
| 24 | Harry E Hint | 46 | Head | — | Illinois |
| 25 | Rosa A Hint | 50 | Wife | — | Illinois |
| 26 | Isabelle Weber | 75 | Mother in law | — | Illinois |
| 27 | Marjorie A Weber | 18 | Niece | — | Illinois |
| 28 | Jana R Weber | 3 | Niece | — | — |
| 29 | Theresa Helander | 66 | Mother | — | Illinois |
| 30 | Donald Stevenson | 27 | Head | Lineman | California |
| 31 | Joyce Stevenson | 23 | Wife | — | Illinois |
| 32 | Ralph H Townsend | 48 | Head | Acoustical Engineer | Utah |
| 33 | Anna P Townsend | 49 | Wife | — | Wyoming |
| 34 | Ralph H Townsend | 19 | Son | Skate Guard | Illinois |
| 35 | Betty A Townsend | 12 | Daughter | — | New York |
| 36 | William A Mooney THIS PERSON | 49 | Head | Asst. Attorney Comptroller | Washington |
| 37 | Mary J Mooney | 49 | Wife | — | Colorado |
| 38 | Jack E Mooney | 17 | Son | — | California |
| 39 | Marilyn H Mooney | 12 | Daughter | — | California |
| 40 | William A Jr Mooney | 9 | Son | — | California |
Pedigree Summary
William
Gen 1 · 2 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)