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Mary Muller — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Los Angeles, California
Our Model Tree links this Mary Muller across the 1930 and 1940 US Censuses in Los Angeles, California (XGBoost, ~Confirmed) — first a daughter (b.~1920), then head of a 5-person household.
Age 10
b. ~1920
Female
Daughter
Born: California
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Los Angeles, California |
| Surname | Muller |
| Given Name | Mary J. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | California |
| Mother's Birthplace | Kentucky |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Township / Ward | Los Angeles City |
| Est. Birth Year | ~1920 |
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 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Harvey Muller | Head | — | 30 | ~1900 |
| Willard Muller | Son | — | 11 | ~1919 |
| Margaret Muller | Spouse | — | 35 | ~1895 |
| Mary Muller | Daughter | — | 10 | ~1920 |
| Lucille Muller | Daughter | — | 8 | ~1922 |
Census Appearances
1930
Los Angeles, …
Daughter, age 10
Los Angeles, California · implied b. ~1920 — 5 household members
| Surname | Muller |
| Given Name | Mary J. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | California |
| Mother's Birthplace | Kentucky |
| Can Read/Write | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1940
Los-Angeles-County, California
Daughter, age 21
Los-Angeles-County, California · implied b. ~1919 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Miller |
| Given Name | Mary J. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | Los Angeles City |
| 1935 Residence (County) | Los Angeles |
| Occupation | Sales Lady |
| Industry | Department Store |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 468 |
| Highest Grade | C 2 |
| 1935 Residence | Same Place |
| 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 Muller across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Muller
Daughter · 1930 · age 10 · b. ~1920 · California
★ You are viewing this record
Sibling
Willard Muller
Sibling · 1930 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lucille Muller
Sibling · 1930 · age 8
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
1930 US Federal Census — Los Angeles, California
Open full size
1930 US Federal Census — Los Angeles, California
Page Contents
43 people indexed on this census page (ia:1930:californiacensus00reel139:0358)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Harvey A. Muller | 30 | Head | Laborer | California |
| 2 | Margaret V. Muller | 35 | Wife | — | Kentucky |
| 3 | Willard L. Muller | 11 | Son | — | California |
| 4 | Mary J. Muller THIS PERSON | 10 | Daughter | — | California |
| 5 | Lucille L. Muller | 8 | Daughter | — | California |
| 6 | Fred Smith | 49 | Head | Barber | Nebraska |
| 7 | Carrie L. Smith | 33 | Wife | — | California |
| 8 | Mildred M. Smith | 6 | Daughter | — | California |
| 9 | Shirley M. Smith | 2 | Daughter | — | California |
| 10 | Alfred B. Bauer | 42 | Head | Printer | Germany |
| 11 | Elene M. Bauer | 41 | Wife | Tailoress | France |
| 12 | Dunn Lyle J. Bauer | 25 | Son | Actor | Illinois |
| 13 | Walter G. Johnson | 37 | Head | Salesman | Massachusetts |
| 14 | Maggie M. Johnson | 48 | Wife | — | Iowa |
| 15 | Lou E. Helmick | 61 | Head | Maid | Ohio |
| 16 | Lulu V. Frazier | 66 | Head | — | Illinois |
| 17 | George F. Walker | 64 | Head | Carpenter | Canada-English |
| 18 | Theodosia P. Walker | 50 | Wife | — | Canada-English |
| 19 | Bryon Letha B. Walker | 34 | Daughter | Asst. Librarian | Maine |
| 20 | Roy H. Belfort | 28 | Head | Salesman | California |
| 21 | Vernita M. Belfort | 20 | Wife | — | Maine |
| 22 | Georgiana La Marche | 48 | Head | — | Canada-English |
| 23 | Kenneth L. Campbell | 29 | Head | Salesman | Ohio |
| 24 | Beatrice V. Campbell | 22 | Wife | — | Washington |
| 25 | Herman G. Lockman | 36 | Head | Printer | Texas |
| 26 | Dayrona E. Lecomte | 23 | R | Concessionaire | California |
| 27 | Alice J. Lecomte | 24 | Wife | — | Ohio |
| 28 | Louis A. Larsen | 63 | R | Ropemaker | Norway |
| 29 | Myrtle E. Larsen | 60 | Wife | — | Kansas |
| 30 | Alice M. Carl | 24 | Step-daughter | — | Washington |
| 31 | Herman A. Stakmore | 53 | Head | — | Wisconsin |
| 32 | Charles G. Tracey | 49 | Head | Artist | Ohio |
| 33 | James H. Long | 39 | Lodger | Helper | Idaho |
| 34 | James Dalton | 43 | Lodger | Laborer | New York |
| 35 | Willburn H. Jones | 38 | Head | Merchant | Nebraska |
| 36 | Louise A. Jones | 34 | Wife | — | Colorado |
| 37 | Willburn H. Jr. Jones | 13 | Son | — | Colorado |
| 38 | Harrison V. Jones | 7 | Son | — | Colorado |
| 40 | William T. Nolan | 59 | Head | Director | Ireland F.S. |
| 41 | Nora Nolan | 55 | Wife | — | New York |
| 42 | Rawland L. Miller | 22 | Lodger | Sound Engineer | California |
| 43 | Otis J. Carter | 48 | Lodger | Police Officer | Oklahoma |
| 45 | William J. Lowe | None | Head | — | U.S. |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)