MS
Marian Smith — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Los-Angeles-County, California
Our Model Tree links this Marian Smith across the 1930 and 1940 US Censuses in Los-Angeles-County, California (XGBoost, ~Confirmed) — first a daughter (b.~1925), then head of a 7-person household.
Age 15
b. ~1925
Female
Daughter
Born: California
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Los-Angeles-County, California |
| Surname | Smith |
| Given Name | Marian A. |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | Los Angeles San Pedro |
| 1935 Residence (County) | Los Angeles |
| Additional Details | |
| Class of Worker | 0 |
| Hours Worked | 0 |
| Highest Grade | H-2 |
| 1935 Residence | Same place |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Township / Ward | Los Angeles San Pedro |
| Est. Birth Year | ~1925 |
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 Marian | Age | Birth yr |
|---|---|---|---|---|
| Alzada Smith | Other | — | 30 | ~1910 |
| Charles Smith | Son | — | 14 | ~1926 |
| Marian Smith | Spouse | — | 40 | ~1900 |
| Charles Smith | Head | — | 42 | ~1898 |
| Marian Smith | Daughter | — | 15 | ~1925 |
| Ralph Smith | Son | — | 12 | ~1928 |
| Cassie Smith | Daughter | — | 18 | ~1922 |
Census Appearances
1930
Los Angeles, …
Daughter, age 5
Los Angeles, California · implied b. ~1925 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Marian L |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Pennsylvania |
| Occupation | none |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1940
Los-Angeles-County, California
Daughter, age 15
Los-Angeles-County, California · implied b. ~1925 — 7 household members
| Surname | Smith |
| Given Name | Marian A. |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | Los Angeles San Pedro |
| 1935 Residence (County) | Los Angeles |
| Class of Worker | 0 |
| Hours Worked | 0 |
| Highest Grade | H-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 Marian Smith across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Marian Smith
Daughter · 1940 · age 15 · b. ~1925 · California
★ You are viewing this record
Sibling
Cassie Smith
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ralph Smith
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charles Smith
Sibling · 1940 · age 14
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-t0627-00432-00566)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Joan C. Shaw | 2 | daughter | — | California |
| 2 | Frank Powers | 75 | head | — | Missouri |
| 3 | Hattie Powers | 64 | wife | — | Colorado |
| 4 | Francis Powers | 28 | son | Bender | California |
| 5 | George Carter | 43 | head | Pipe Fitter | California |
| 6 | Caroline Carter | 43 | wife | — | Massachusetts |
| 7 | Gustave Carter | 17 | son | — | California |
| 8 | Pete Morra | 45 | head | Laborer | Italy |
| 9 | Harry W. Webb | 27 | Head | Longshoreman | Minnesota |
| 10 | Lorraine Webb | 22 | wife | — | Massachusetts |
| 11 | Joyce Lorraine Webb | 2 | daughter | — | California |
| 12 | Harry Walter Jr. Webb | 0 | son | — | California |
| 13 | Sarah Steffensen | 54 | head | House Work | Scotland |
| 14 | Milton Young | 30 | lodger | Electrician | Maine |
| 15 | Violet M. Young | 30 | lodger | — | Washington |
| 16 | Charles L. Smith | 42 | head | Fire Man | Missouri |
| 17 | Marian Smith | 40 | wife | — | Pennsylvania |
| 18 | Cassie Marie Smith | 18 | daughter | — | Idaho |
| 19 | Marian A. Smith THIS PERSON | 15 | daughter | — | California |
| 20 | Charles A. Smith | 14 | son | — | California |
| 21 | Ralph Smith | 12 | son | — | California |
| 22 | Alzada Smith | 30 | sister | Bookkeeper | Missouri |
| 23 | Joseph P. Greenwood | 74 | head | — | Pennsylvania |
| 24 | Sara A. Greenwood | 67 | wife | — | Pennsylvania |
| 25 | Leo R. Gustafson | 39 | head | Longshoreman | Massachusetts |
| 26 | Signe Gustafson | 35 | wife | — | Sweden |
| 27 | Pete Simeoni | 45 | head | Painter | Italy |
| 28 | Mary Simeoni | 35 | wife | — | New York |
| 29 | Eugene Simeoni | 14 | son | — | California |
| 30 | Sammy Simeoni | 12 | son | — | California |
| 31 | Minnie Barrango | 70 | in-law | — | Italy |
| 32 | — | None | block | — | — |
| 33 | James G. Orr | 68 | head | — | Ireland |
| 34 | Margaret Orr | 66 | wife | — | Ireland |
| 35 | Jano Christensen | 57 | head | Carpenter | Denmark |
| 36 | Lily Christensen | 54 | wife | — | Sweden |
| 37 | Lillian Christensen | 15 | daughter | — | New York |
| 38 | Margaret Crane | 36 | head | — | Michigan |
| 39 | Nancy Crane | 13 | daughter | — | Michigan |
| 40 | Mary Alice Crane | 11 | daughter | — | Michigan |
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)