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Betty Martin — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Los-Angeles-County, California
Our Model Tree links this Betty Martin across the 1930 and 1940 US Censuses in Los-Angeles-County, California (XGBoost, ~Confirmed) — first a daughter (b.~1922), then head of a 10-person household.
Age 18
b. ~1922
Female
Daughter
Born: Nebraska
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Los-Angeles-County, California |
| Surname | Martin |
| Given Name | Betty Lou |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Nebraska |
| 1935 Residence (City) | Los Angeles City |
| 1935 Residence (County) | Los Angeles |
| Additional Details | |
| Occupation | saleslady |
| Industry | R. Dept store |
| Class of Worker | PW |
| Hours Worked | 8 |
| Income (1939) | 48 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Nebraska |
| Birth Country | United States |
| Birthplace (normalized) | nebraska |
| Occupation | Saleslady |
| Township / Ward | Los Angeles City |
| Est. Birth Year | ~1922 |
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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Betty | Age | Birth yr |
|---|---|---|---|---|
| Charles Allen | Other | — | 30 | ~1910 |
| John Martin | Son | — | 20 | ~1920 |
| Timothy Martin | Son | — | 8 | ~1932 |
| Patsy Martin | Daughter | — | 14 | ~1926 |
| Billy Martin | Daughter | — | 12 | ~1928 |
| Charles Allen | Other | — | 5 | ~1935 |
| Oliver Martin | Head | — | 46 | ~1894 |
| Dixie Allen | Daughter | — | 26 | ~1914 |
| Betty Martin | Daughter | — | 18 | ~1922 |
| Elizabeth Martin | Spouse | — | 45 | ~1895 |
Census Appearances
1930
Los Angeles, …
Daughter, age 8
Los Angeles, California · implied b. ~1922 — 13 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Betty Lou |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | Nebraska |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Occupation | none |
| Birth State | Nebraska |
| Birth Country | United States |
| Birthplace (normalized) | nebraska |
1940
Los-Angeles-County, California
Daughter, age 18
Los-Angeles-County, California · implied b. ~1922 — 10 household members
| Surname | Martin |
| Given Name | Betty Lou |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Nebraska |
| 1935 Residence (City) | Los Angeles City |
| 1935 Residence (County) | Los Angeles |
| Occupation | saleslady |
| Industry | R. Dept store |
| Class of Worker | PW |
| Hours Worked | 8 |
| Income (1939) | 48 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Nebraska |
| Birth Country | United States |
| Birthplace (normalized) | nebraska |
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 Betty Martin across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Betty Martin
Daughter · 1940 · age 18 · b. ~1922 · California
★ You are viewing this record
Sibling
Patsy Martin
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Martin
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dixie Allen
Sibling · 1940 · age 26
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Timothy Martin
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Billy Martin
Sibling · 1940 · age 12
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-t0627-00426-00528)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Homer, D Ashmire | 32 | Head | Manager | Kansas |
| 2 | O. Faye Ashmire | 28 | Wife | — | Missouri |
| 3 | Patsy, A Ashmire | 2 | Daughter | — | California |
| 4 | Robert, S. Jones | 34 | Head | Linotype Operator | North Wales |
| 5 | Mary, V. Jones | 22 | Wife | — | Ohio |
| 6 | Robert, S. 2Nd Jones | 1 | Son | — | California |
| 7 | Timothy, E. Jones | 0 | Son | — | California |
| 8 | Stephen, M. Kester | 58 | Head | Secretary | Missouri |
| 9 | Margaret, E. Kester | 56 | Wife | Manager | Kansas |
| 10 | Lester, E. Kester | 20 | Son | Office Boy | California |
| 11 | Joan, V. Fulbright | 9 | Lodger | — | California |
| 12 | Charles, E. Post | 35 | Head | Salesman | Illinois |
| 13 | Frances, L. Post | 34 | Wife | — | Indiana |
| 14 | Charles, E. Jr. Post | 13 | Son | — | California |
| 15 | Gloria, R. Post | 11 | Daughter | — | California |
| 16 | Joan, F. Post | 8 | Daughter | — | California |
| 17 | Charles, C. Goldman | 51 | Head | Manager | Russia |
| 18 | Regina Goldman | 39 | Wife | — | Austria |
| 19 | Robert, F. Goldman | 19 | Son | Messenger Boy | New Jersey |
| 20 | Rita, Joyce Goldman | 15 | Daughter | — | New Jersey |
| 21 | George, H. Pausch | 75 | Head | Manager | Penn. |
| 22 | Della, E. Pausch | 72 | Wife | — | Eire |
| 23 | Dora Baldwin | 52 | Head | Mangle Operator | California |
| 24 | Frank, E. Fiskas | 31 | Nephew | Violin Teacher | California |
| 25 | Oliver, F. Martin | 46 | Head | Painter | Iowa |
| 26 | Elizabeth, H. Martin | 45 | Wife | — | Iowa |
| 27 | John, P. Martin | 20 | Son | Painter | Nebraska |
| 28 | Betty Lou Martin THIS PERSON | 18 | Daughter | Saleslady | Nebraska |
| 29 | Patsy Joan Martin | 14 | Daughter | — | California |
| 30 | Billy Joe Martin | 12 | Daughter | — | California |
| 31 | Timothy, K. Martin | 8 | Son | — | California |
| 32 | Charles, M. Allen | 30 | Son in law | Painter | Penn. |
| 33 | Dixie, M. Allen | 26 | Daughter | — | Nebraska |
| 34 | Charles, M. Jr. Allen | 5 | Grandson | — | California |
| 35 | Herbert, H. Lagergren | 40 | Head | Count. Issue Clerk | Massachusetts |
| 36 | Ruth Lagergren | 24 | Wife | — | Iowa |
| 37 | Charles, E. Dawson | 67 | Head | Day Watchman | Illinois |
| 38 | Leola, B. Dawson | 68 | Wife | — | Kentucky |
| 39 | William, W. Wolf | 39 | Head | Truck Driver | Nebraska |
| 40 | Violet, A. Wolf | 37 | Wife | — | 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)