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Mary Mayer — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Los-Angeles-County, California
Our Model Tree links this Mary Mayer across the 1930 and 1940 US Censuses in Los-Angeles-County, California (XGBoost, ~Confirmed) — first a spouse (b.~1905), then head of a 6-person household.
Age 35
b. ~1905
Female
Spouse
Born: Austria
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Los-Angeles-County, California |
| Surname | Mayer |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Austria |
| 1935 Residence (City) | East Los Angeles |
| 1935 Residence (County) | Los Angeles |
| Naturalization Status | First papers filed |
| Additional Details | |
| Highest Grade | 6 |
| 1935 Residence | Same place |
| Birth Country | Austria |
| Birthplace (normalized) | austria |
| Township / Ward | East Los Angeles |
| Est. Birth Year | ~1905 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Della Mayer | Daughter | — | 12 | ~1928 |
| Francis Mayer | Daughter | — | 13 | ~1927 |
| Frank Mayer | Head | — | 42 | ~1898 |
| Howard Mayer | Son | — | 6 | ~1934 |
| John Mayer | Son | — | 8 | ~1932 |
| Mary Mayer | Spouse | — | 35 | ~1905 |
Census Appearances
1930
Los Angeles, …
Other, age 25
Los Angeles, California · implied b. ~1905 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mayer |
| Given Name | Mary |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 25 |
| Marital Status | Married |
| Birthplace | Austria |
| Naturalization Status | Naturalized |
| Year of Immigration | 1924 |
| Age at First Marriage | 22 |
| Father's Birthplace | Austria |
| Mother's Birthplace | Austria |
| Occupation | Mangler |
| Industry | Laundry |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | German |
| Birth Country | Austria |
| Birthplace (normalized) | austria |
1940
Los-Angeles-County, California
Spouse, age 35
Los-Angeles-County, California · implied b. ~1905 — 6 household members
| Surname | Mayer |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Austria |
| 1935 Residence (City) | East Los Angeles |
| 1935 Residence (County) | Los Angeles |
| Naturalization Status | First papers filed |
| Highest Grade | 6 |
| 1935 Residence | Same place |
| Birth Country | Austria |
| Birthplace (normalized) | austria |
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 Mayer across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Mayer
Spouse · 1940 · age 35 · b. ~1905 · California
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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-t0627-00239-00353)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Edith Hughes | 46 | Wife | — | California |
| 42 | Cleopatra Clark | 21 | Step daughter | Messenger | California |
| 43 | Winnifred Clark | 20 | Step daughter | Weaver | California |
| 44 | Sylvester Fred | 11 | Grand son | — | California |
| 45 | Charles Browning | 46 | Head | Outside Salesman | Iowa |
| 46 | Clara Browning | 41 | Wife | — | California |
| 47 | Charles Browning | 19 | Son | Pressman | California |
| 48 | Joseph Wolfe | 46 | Head | Boiler Maker | Nebraska |
| 49 | Lois Wolfe | 44 | Wife | — | Missouri |
| 50 | Richard Wolfe | 23 | Son | Rubber Worker | Nebraska |
| 51 | Duane Wolfe | 17 | Son | Apprentice Machinist | Wyoming |
| 52 | James Wolfe | 5 | Son | — | California |
| 53 | John Brady | 25 | Head | Machinist | California |
| 54 | Marjorie Brady | 22 | Wife | — | California |
| 55 | Shyrrel Brady | 5 | Daughter | — | California |
| 56 | David Brady | 2 | Son | — | California |
| 57 | Gregory Brady | 0 | Son | — | California |
| 58 | Joseph C. Chambers | 33 | Head | Pitman | West Virginia |
| 59 | Virginia Chambers | 28 | Wife | — | Ohio |
| 60 | Barbara Chambers | 8 | Daughter | — | West Virginia |
| 61 | Joseph Chambers | 7 | Son | — | Ohio |
| 62 | Terry Chambers | 0 | Son | — | California |
| 63 | Sam Nader | 63 | Head | Pipe Fitter | Syria |
| 64 | Sara Nader | 57 | Wife | — | Syria |
| 65 | Virginia Nader | 22 | Daughter | — | California |
| 66 | Joan Nader | 19 | Daughter | Waitress | Massachusetts |
| 67 | Judy Nader | 17 | Daughter | New Worker | California |
| 68 | Mary Nersesian | 31 | Head | — | Armenia |
| 69 | Nick Nersesian | 50 | Husband | Truck Driver | Armenia |
| 70 | Eva Nersesian | 16 | Daughter | — | California |
| 71 | Evelyn Nersesian | 14 | Daughter | — | California |
| 72 | Helen Nersesian | 13 | Daughter | — | California |
| 73 | Louise Nersesian | 9 | Daughter | — | California |
| 74 | Frank Mayer | 42 | Head | Band Saw Operator | Austria |
| 75 | Mary Mayer THIS PERSON | 35 | Wife | — | Austria |
| 76 | Francis Mayer | 13 | Daughter | — | California |
| 77 | Della Mayer | 12 | Daughter | — | California |
| 78 | John Mayer | 8 | Son | — | California |
| 79 | Howard Mayer | 6 | Son | — | California |
| 80 | George Blake | 58 | Head | Accountant | Ohio |
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)