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Mary Marshall — 1940 US Census Record
Model Tree available1940 United States Federal Census · Los-Angeles-County, California
Our Model Tree links this Mary Marshall across the 1920, 1930 and 1940 US Censuses in Los-Angeles-County, California (XGBoost, ~Confirmed), with identified parents Florence & Roy — first a daughter (b.~1915), then head of a 4-person household.
Age 25
b. ~1915
Female
Daughter
Born: California
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Los-Angeles-County, California |
| Surname | Marshall |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | Glendale City |
| 1935 Residence (County) | Los Angeles |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | No C4 |
| 1935 Residence | Same place |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Township / Ward | Glendale City |
| Est. Birth Year | ~1915 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Marshall | Daughter | — | 25 | ~1915 |
| Florence Marshall | Head | — | 60 | ~1880 |
| Charles Marshall | Other | — | 2 | ~1938 |
| Allan Marshall | Son | — | 26 | ~1914 |
Census Appearances
1920
Los Angeles, …
Daughter, age 5
Los Angeles, California · implied b. ~1915 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Marshall |
| Given Name | Marion |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Missouri |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1930
Los Angeles, …
Daughter, age 15
Los Angeles, California · implied b. ~1915 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Marshall |
| Given Name | Marian |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Iowa |
| Mother's Birthplace | California |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1940
Los-Angeles-County, California
Daughter, age 25
Los-Angeles-County, California · implied b. ~1915 — 4 household members
| Surname | Marshall |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | Glendale City |
| 1935 Residence (County) | Los Angeles |
| Income (1939) | 0 |
| Highest Grade | No C4 |
| 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 Marshall across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Florence Marshall (~0.92 confidence) and father Roy Marshall (~0.92 confidence) and mother Ethel Marshall (~0.92 confidence) and mother Edna Marshall (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Florence Marshall
b. ~1880
Source mother
● Household
· direct · ~0.92
Father
Roy Marshall
b. ~1888
Source father
● Household
· direct · ~0.92
Mother
Ethel Marshall
b. ~1888
Source mother
● Household
· direct · ~0.92
Mother
Edna Marshall
b. ~1888
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Marshall
Daughter · 1940 · age 25 · b. ~1915 · California
★ You are viewing this record
Sibling
Allan Marshall
Sibling · 1940 · age 26
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-t0627-00231-00285)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Grace Smith | 43 | Wife | Book-Keeper | Missouri |
| 42 | Frank Barrett | 68 | Head | — | Kansas |
| 43 | Elsie Barrett | 55 | Wife | — | Germany |
| 44 | John Smith | 51 | Head | Layout Man | Tennessee |
| 45 | Marie Smith | 52 | Wife | — | California |
| 46 | Edwin Smith | 21 | Son | — | California |
| 47 | Bertha Wolkhart | 63 | Head | — | Bohemia |
| 48 | Joseph E. Zaremba | 59 | Head | Owner Director | Poland |
| 49 | Martha Zaremba | 58 | Wife | — | Michigan |
| 50 | Marie Zaremba | 30 | Daughter | Social Service | Michigan |
| 51 | Claire Zaremba | 28 | Daughter | Office Worker | Michigan |
| 52 | Helen Zaremba | 21 | Daughter | — | Michigan |
| 53 | Eva Robinson | 69 | Head | — | Iowa |
| 54 | Georgia Mcadams | 29 | Lodger | Photography | Georgia |
| 55 | Philip Mcadams | 38 | Head | Automobile Mechanic | Georgia |
| 56 | Elva Mcadams | 40 | Wife | Manager | Missouri |
| 57 | Celeste Mcadams | 5 | Daughter | — | California |
| 58 | Florence Marshall | 60 | Head | — | England |
| 59 | Allan Marshall | 26 | Son | — | England |
| 60 | Mary Marshall THIS PERSON | 25 | Daughter | — | California |
| 61 | Charles Marshall | 2 | Grandson | — | California |
| 62 | Donald Formby | 62 | Head | Clerk | England |
| 63 | Hans Schumacher | 29 | Partner | Owner Manager | Germany |
| 64 | Lizzie Bidwell | 70 | Head | — | Missouri |
| 65 | Maude Wine | 60 | Cousin | — | Missouri |
| 66 | Fred Beach | 71 | Head | — | Illinois |
| 67 | Emma Beach | 64 | Wife | — | Missouri |
| 68 | Will Kemp | 56 | Brother in law | Line Man | Missouri |
| 69 | Herbert Garmong | 52 | Head | Broker | Virginia |
| 70 | Bessie Garmong | 51 | Wife | — | Iowa |
| 71 | Doris Garmong | 16 | Daughter | — | California |
| 72 | Harry Ring | 51 | Head | — | Iowa |
| 73 | Vera Ring | 42 | Wife | — | Iowa |
| 74 | William Fryer | 63 | Head | Consulting Engineer | Pennsylvania |
| 75 | Harriet Fryer | 56 | Wife | — | New Jersey |
| 76 | Wallace Fryer | 21 | Son | Assembly Man | Connecticut |
| 77 | Harold Fryer | 17 | Son | — | New Jersey |
| 78 | Minerva Wilfong | 81 | Head | — | Arkansas |
| 79 | Berta Nelson | 62 | Daughter | — | Texas |
| 80 | Vivien Wilfong | 41 | Daughter | Bookkeeper | Texas |
Pedigree Summary
Mary + 1 sibling
Gen 1 · 4 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)