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Mary Merrill — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Los-Angeles-County, California
Our Model Tree links this Mary Merrill across the 1930 and 1940 US Censuses in Los-Angeles-County, California (XGBoost, ~Confirmed) — first a daughter (b.~1926), then head of a 7-person household.
Age 14
b. ~1926
Female
Daughter
Born: California
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Los-Angeles-County, California |
| Surname | Merrill |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | Redondo Beach City |
| 1935 Residence (County) | Los Angeles |
| Additional Details | |
| Industry | 0 |
| Highest Grade | Hs 1 |
| 1935 Residence | Same House |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Township / Ward | Redondo Beach City |
| Est. Birth Year | ~1926 |
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 |
|---|---|---|---|---|
| Claire Merrill | Head | — | 47 | ~1893 |
| Marjory Merrill | Daughter | — | 8 | ~1932 |
| Dorothy Merrill | Daughter | — | 12 | ~1928 |
| Egbert Merrill | Son | — | 26 | ~1914 |
| Mary Merrill | Daughter | — | 14 | ~1926 |
| Arthur Merrill | Son | — | 20 | ~1920 |
| John Merrill | Son | — | 15 | ~1925 |
Census Appearances
1930
Los Angeles, …
Daughter, age 4
Los Angeles, California · implied b. ~1926 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Merrill |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Colorado |
| Occupation | none |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1940
Los-Angeles-County, California
Daughter, age 14
Los-Angeles-County, California · implied b. ~1926 — 7 household members
| Surname | Merrill |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | Redondo Beach City |
| 1935 Residence (County) | Los Angeles |
| Industry | 0 |
| Highest Grade | Hs 1 |
| 1935 Residence | Same House |
| 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 Merrill across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Merrill
Daughter · 1940 · age 14 · b. ~1926 · California
★ You are viewing this record
Sibling
Arthur Merrill
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Merrill
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Egbert Merrill
Sibling · 1940 · age 26
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Merrill
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Marjory Merrill
Sibling · 1940 · 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
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-t0627-00235-00305)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Ophelia Brunter | 73 | Wife | — | Illinois |
| 42 | Mary Buxton | 70 | Head | — | Minnesota |
| 43 | Ruth Buxton | 49 | Daughter | — | Colorado |
| 44 | Alice Newbanks | 45 | Head | Secretary | Washington |
| 45 | Herbert Newbanks | 18 | Son | Clerk | Washington |
| 46 | Mary Newbanks | 17 | Daughter | — | Oregon |
| 47 | Ruth Newbanks | 14 | Daughter | — | Washington |
| 48 | Paul Rust | 35 | Head | Plasterer | North Dakota |
| 49 | Irene Rust | 29 | Wife | — | California |
| 50 | Maxine Rust | 9 | Daughter | — | California |
| 51 | Leon Rust | 3 | Son | — | California |
| 52 | Claire Merrill | 47 | Head | — | Colorado |
| 53 | Egbert Merrill | 26 | Son | School Teacher | California |
| 54 | Arthur Merrill | 20 | Son | Salesman | California |
| 55 | John Merrill | 15 | Son | — | California |
| 56 | Mary Merrill THIS PERSON | 14 | Daughter | — | California |
| 57 | Dorothy Merrill | 12 | Daughter | — | California |
| 58 | Marjory Merrill | 8 | Daughter | — | California |
| 59 | Clarence Boyd | 71 | Head | — | Illinois |
| 60 | Jessie Boyd | 59 | Wife | — | Illinois |
| 61 | Lillian Boyd | 30 | Daughter | Stenographer | Washington |
| 62 | James Crawford | 28 | Head | Supervisor | Oklahoma |
| 63 | Florence Crawford | 26 | Wife | — | California |
| 64 | Jo-Ann Crawford | 5 | Daughter | — | California |
| 65 | Sandy Crawford | 4 | Son | — | California |
| 66 | Frances Geary | 68 | Head | — | Missouri |
| 67 | Annie Geary | 62 | Wife | — | Missouri |
| 68 | Opal Pearson | 40 | Daughter | — | Missouri |
| 69 | Dale Pearson | 12 | Grandson | — | California |
| 70 | Ivan Mcelroy | 22 | Son-in-law | Plumber | Idaho |
| 71 | Eva June Mcelroy | 21 | Daughter | Beauty Operator | California |
| 72 | Ray Mcelroy | 4 | Grandson | — | California |
| 73 | Charles Smith | 54 | Head | Laboratory Work | Massachusetts |
| 74 | Mattie Smith | 56 | Wife | — | Maine |
| 75 | Annie Ambach | 85 | Mother-in-law | — | Maine |
| 76 | Joseph Eisenbrands | 63 | Head | Manager | Kansas |
| 77 | Maud Eisenbrands | 61 | Wife | — | Texas |
| 78 | Lloyd Rinehart | 15 | Nephew | — | California |
| 79 | Ezra Irby | 30 | Head | Steel Moulder | Missouri |
| 80 | Mary Irby | 33 | Wife | — | Idaho |
Related Census Records
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)