MF
Mary Frey — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Los-Angeles-County, California
Our Model Tree links this Mary Frey across the 1930 and 1940 US Censuses in Los-Angeles-County, California (XGBoost, ~Confirmed) — first a spouse (b.~1907), then head of a 7-person household.
Age 33
b. ~1907
Female
Spouse
Born: Wyoming
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Los-Angeles-County, California |
| Surname | Frey |
| Given Name | Mary L. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Wyoming |
| 1935 Residence (City) | Antelope Township |
| 1935 Residence (County) | Los Angeles |
| Additional Details | |
| Industry | 0 |
| Highest Grade | H 1 |
| 1935 Residence | Same place |
| Birth State | Wyoming |
| Birth Country | United States |
| Birthplace (normalized) | wyoming |
| Township / Ward | Antelope Township |
| Est. Birth Year | ~1907 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Frey | Spouse | — | 33 | ~1907 |
| James Frey | Son | — | 1 | ~1939 |
| Fred Frey | Son | — | 5 | ~1935 |
| Hattie Frey | Daughter | — | 11 | ~1929 |
| Herman Frey | Head | — | 61 | ~1879 |
| Norma Frey | Daughter | — | 14 | ~1926 |
| Herman Frey | Son | — | 9 | ~1931 |
Census Appearances
1930
Los Angeles, …
Spouse, age 24
Los Angeles, California · implied b. ~1906 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Frey |
| Given Name | Mary L. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 24 |
| Marital Status | Married |
| Birthplace | Wyoming |
| Age at First Marriage | 20 |
| Father's Birthplace | Sweden |
| Mother's Birthplace | England |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Wyoming |
| Birth Country | United States |
| Birthplace (normalized) | wyoming |
1940
Los-Angeles-County, California
Spouse, age 33
Los-Angeles-County, California · implied b. ~1907 — 7 household members
| Surname | Frey |
| Given Name | Mary L. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Wyoming |
| 1935 Residence (City) | Antelope Township |
| 1935 Residence (County) | Los Angeles |
| Industry | 0 |
| Highest Grade | H 1 |
| 1935 Residence | Same place |
| Birth State | Wyoming |
| Birth Country | United States |
| Birthplace (normalized) | wyoming |
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 Frey across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Frey
Spouse · 1940 · age 33 · b. ~1907 · 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-t0627-00219-00060)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Violet Polphill | 15 | Daughter | — | California |
| 42 | Barbara Polphill | 14 | Daughter | — | California |
| 43 | Marjorie Polphill | 13 | Daughter | — | California |
| 44 | Dorothy Polphill | 11 | Daughter | — | California |
| 45 | James L. Chambers | 73 | Head | Farmer | Missouri |
| 46 | Bertha A. Chambers | 61 | Wife | — | Missouri |
| 47 | Orin Johnson | 30 | Head | Laborer | Washington |
| 48 | Eva M. Johnson | 27 | Wife | — | Missouri |
| 49 | Alden J. Johnson | 8 | Son | — | California |
| 50 | Dorothy Johnson | 2 | Daughter | — | California |
| 51 | James Shear | 36 | Head | Clerk | Wisconsin |
| 52 | Mildred Shear | 35 | Wife | — | Illinois |
| 53 | Peter A. Steck | 31 | Head | Farmer | Oregon |
| 54 | Laura A. Steck | 28 | Wife | — | California |
| 55 | Frank Steck | 9 | Son | — | California |
| 56 | Jerry Steck | 4 | Son | — | California |
| 57 | Anton Stark | 57 | Head | Farmer | Holland |
| 58 | Jennetje Stark | 56 | Wife | — | Holland |
| 59 | Frank Stark | 30 | Son | Farmer | Oregon |
| 60 | Paul De Way | 29 | Head | Bookkeeper | New York |
| 61 | Loretta De Way | 25 | Wife | — | Texas |
| 62 | Michael F. De Way | 2 | Son | — | California |
| 63 | Milton Cheney | 53 | Head | Farmer | Iowa |
| 64 | Emil Johnson | 62 | Head | — | Sweden |
| 65 | Oscar Johnson | 33 | Son | Janitor | Illinois |
| 66 | Herman F. Frey | 61 | Head | Farmer | Kansas |
| 67 | Mary L. Frey THIS PERSON | 33 | Wife | — | Wyoming |
| 68 | Norma L. Frey | 14 | Daughter | — | Nevada |
| 69 | Hattie M. Frey | 11 | Daughter | — | California |
| 70 | Herman E. Frey | 9 | Son | — | California |
| 71 | Fred C. Frey | 5 | Son | — | California |
| 72 | James R. Frey | 1 | Son | — | California |
| 73 | Georgina A. Beaman | 56 | Head | — | Sweden |
| 74 | Dorothy A. Beaman | 14 | Daughter | — | California |
| 75 | John L. Beaman | 12 | Son | — | California |
| 76 | John A. Wren | 54 | Head | Teacher | California |
| 77 | Florence R. Wren | 50 | Wife | — | Mass |
| 78 | Herman Fox | 27 | Head | Laborer | Oklahoma |
| 79 | Pauline E. Fox | 27 | Wife | — | Arkansas |
| 80 | Herman W. Fox | 4 | Son | — | California |
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)