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Mary Murray — 1940 US Census Record
Model Tree available1940 United States Federal Census · Los-Angeles-County, California
Our Model Tree links this Mary Murray across the 1920, 1930 and 1940 US Censuses in Los-Angeles-County, California (XGBoost, ~Confirmed), with identified parents Arthur & George — first a daughter (b.~1917), then head of a 3-person household.
Age 23
b. ~1917
Female
Daughter
Born: California
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Los-Angeles-County, California |
| Surname | Murray |
| Given Name | Mary E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | Long Beach City |
| Additional Details | |
| Occupation | Automobile Dealer |
| Industry | PW |
| Class of Worker | 2106 |
| Highest Grade | C 4 |
| 1935 Residence | 45 |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Occupation | Automobile Dealer |
| Township / Ward | Long Beach City |
| Est. Birth Year | ~1917 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Murray | Daughter | — | 23 | ~1917 |
| George Murray | Head | — | 55 | ~1885 |
| Mallory Murray | Spouse | — | 51 | ~1889 |
Census Appearances
1920
Los Angeles, …
Daughter, age 3
Los Angeles, California · implied b. ~1917 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Murray |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | California |
| Mother's Birthplace | California |
| Occupation | none |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1930
Los Angeles, …
Daughter, age 13
Los Angeles, California · implied b. ~1917 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Murray |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | California |
| Mother's Birthplace | California |
| Can Read/Write | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1940
Los-Angeles-County, California
Daughter, age 23
Los-Angeles-County, California · implied b. ~1917 — 3 household members
| Surname | Murray |
| Given Name | Mary E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | Long Beach City |
| Occupation | Automobile Dealer |
| Industry | PW |
| Class of Worker | 2106 |
| Highest Grade | C 4 |
| 1935 Residence | 45 |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
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 Mary Murray across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Arthur Murray (~0.92 confidence) and father George Murray (~0.92 confidence) and father Arthur Murray (~0.92 confidence) and mother Mallory Murray (~0.92 confidence) and mother Edna Murray (~0.92 confidence) and mother Dora Murray (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Arthur Murray
b. ~1896
Source father
● Household
· direct · ~0.92
Father
George Murray
b. ~1885
Source father
● Household
· direct · ~0.92
Father
Arthur Murray
b. ~1892
Source father
● Household
· direct · ~0.92
Mother
Mallory Murray
b. ~1889
Source mother
● Household
· direct · ~0.92
Mother
Edna Murray
b. ~1897
Source mother
● Household
· direct · ~0.92
Mother
Dora Murray
b. ~1898
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Murray
Daughter · 1940 · age 23 · b. ~1917 · 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-t0627-00369-00682)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Nora E. Speck | 75 | Mother | — | Canada English |
| 2 | Margaret Mckinney | 69 | Head | — | New York |
| 3 | Susan Alexander | 65 | Head | — | Iowa |
| 4 | Charles W. Frank | 54 | Head | — | Kansas |
| 5 | Gertrude N. Frank | 62 | Wife | — | Wisconsin |
| 6 | George M. Murray | 55 | Head | Oil Well Supplies | Scotland |
| 7 | Mallory Murray | 51 | Wife | — | Scotland |
| 8 | Mary E. Murray THIS PERSON | 23 | Daughter | Automobile Dealer | California |
| 9 | George Carlson | 55 | Head | — | Illinois |
| 10 | Leona Carlson | 52 | Wife | Private Family | Nebraska |
| 11 | Ealene Carlson | 26 | Daughter | — | Nebraska |
| 12 | Max M. Carlson | 18 | Son | — | Colorado |
| 13 | Edith Steffan | 21 | Daughter | — | Colorado |
| 14 | Anderson Dickey | 5 | Grandson | — | California |
| 15 | John Wain | 34 | Lodger | Railroad | Kentucky |
| 16 | William S. Heslin | 61 | Head | Electric Co | Kentucky |
| 17 | Leila Heslin | 57 | Wife | — | Wisconsin |
| 18 | Frances G. Heslin | 27 | Daughter | Seaside Hosp | Washington |
| 19 | John E. Montgomery | 30 | Head | Truck Driver | Oklahoma |
| 20 | Nona Montgomery | 27 | Wife | — | Oklahoma |
| 21 | Maleith Montgomery | 7 | Daughter | — | Oklahoma |
| 22 | Patty Jean Montgomery | 4 | Daughter | — | Oklahoma |
| 23 | Mary L. Montgomery | 1 | Daughter | — | Oklahoma |
| 24 | William R. Simpkins | 66 | Head | — | Iowa |
| 25 | William D. Park | 41 | Head | U.S. Navy | Iowa |
| 26 | Isabell Park | 50 | Wife | — | Scotland |
| 27 | Florence Biglow | 29 | Stepdaughter | — | Florida |
| 28 | Raymond Biglow | 17 | Grandson | — | Florida |
| 29 | Etta L. Fiffo | 75 | Head | — | Minnesota |
| 30 | Helen M. Fiffo | 46 | Niece | — | Ohio |
| 31 | William H. Fiffo | 17 | Nephew | — | Ohio |
| 32 | Lucy J. Fiffo | 15 | Great Niece | — | Ohio |
| 33 | John H. Helston | 51 | Head | Newspaper | North Carolina |
| 34 | Martha G. Helston | 53 | Wife | — | Georgia |
| 35 | Ferrell E. Helston | 22 | Daughter | Cashier | Alabama |
| 36 | James W. Helston | 24 | Son | Photographer | Alabama |
| 37 | Melba Helston | 20 | Daughter in law | — | Georgia |
| 38 | George Buchanan | 53 | Head | Rough Carpenter | Ohio |
| 39 | Minnie Buchanan | 47 | Wife | — | Kansas |
| 40 | Nancy Capper | 71 | Mother in law | — | Iowa |
Pedigree Summary
Mary
Gen 1 · 6 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)