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Donald Martin — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Los-Angeles-County, California
Our Model Tree links this Donald Martin across the 1930 and 1940 US Censuses in Los-Angeles-County, California (XGBoost, ~Confirmed) — first a son (b.~1929), then head of a 9-person household.
Age 11
b. ~1929
Male
Son
Born: California
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Los-Angeles-County, California |
| Surname | Martin |
| Given Name | Donald |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | Altadena |
| 1935 Residence (County) | Los Angeles |
| Additional Details | |
| Highest Grade | No 5 |
| 1935 Residence | Same house |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Township / Ward | Altadena |
| Est. Birth Year | ~1929 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Donald | Age | Birth yr |
|---|---|---|---|---|
| Bernadene Martin | Daughter | — | 23 | ~1917 |
| Marjory Martin | Daughter | — | 20 | ~1920 |
| Cora Martin | Spouse | — | 49 | ~1891 |
| Merle Martin | Son | — | 21 | ~1919 |
| James Martin | Head | — | 52 | ~1888 |
| Robert Martin | Son | — | 14 | ~1926 |
| Albert Martin | Son | — | 16 | ~1924 |
| Dorothy Martin | Daughter | — | 11 | ~1929 |
| Donald Martin | Son | — | 11 | ~1929 |
Census Appearances
1930
Los Angeles, …
Son, age
Los Angeles, California · implied b. ~1930 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Donald L. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Kansas |
| Mother's Birthplace | Kansas |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1940
Los-Angeles-County, California
Son, age 11
Los-Angeles-County, California · implied b. ~1929 — 9 household members
| Surname | Martin |
| Given Name | Donald |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | Altadena |
| 1935 Residence (County) | Los Angeles |
| Highest Grade | No 5 |
| 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 Donald Martin across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Donald Martin
Son · 1940 · age 11 · b. ~1929 · California
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Sibling
Dorothy Martin
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Marjory Martin
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Merle Martin
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Bernadene Martin
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Martin
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Albert Martin
Sibling · 1940 · age 16
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-t0627-00244-00195)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Verle | 41 | Wife | Physician | Michigan |
| 42 | Joseph Matson | 63 | Head | — | Iowa |
| 43 | Kathleen Matson | 62 | Wife | — | Iowa |
| 44 | Maude Cutter | 70 | Head | — | New Jersey |
| 45 | Harold Weinmann | 43 | Head | Deputy County Clerk | Pennsylvania |
| 46 | Helen Weinmann | 40 | Wife | — | Connecticut |
| 47 | Shirley Weinmann | 19 | Daughter | — | California |
| 48 | Valerie Weinmann | 7 | Daughter | — | California |
| 49 | S. Oscar Bennett | 48 | Head | Builder | Illinois |
| 50 | Clara Louise Bennett | 52 | Wife | — | Illinois |
| 51 | Jean Louise Bennett | 12 | Daughter | — | California |
| 52 | Robert Woods | 38 | Head | Geo-Physicist | Iowa |
| 53 | Lola B. Woods | 38 | Wife | — | California |
| 54 | Marjorie Jean Woods | 14 | Daughter | — | California |
| 55 | Robert Woods | 5 | Son | — | California |
| 56 | Hettie Sholly | 66 | Head | — | Ohio |
| 57 | James Willis | 56 | Head | Salesman | England |
| 58 | Blanche Willis | 52 | Wife | — | Utah |
| 59 | Ralph Winchester | 52 | Head | Vice Principal | Massachusetts |
| 60 | Alice Winchester | 48 | Wife | — | Illinois |
| 61 | Thomas Winchester | 18 | Son | — | California |
| 62 | James Martin | 52 | Head | Dentist | Kansas |
| 63 | Cora M. Martin | 49 | Wife | — | Kansas |
| 64 | Bernadene Martin | 23 | Daughter | Nurse R.N. | California |
| 65 | Merle Martin | 21 | Son | Welder'S Helper | California |
| 66 | Marjory Martin | 20 | Daughter | — | California |
| 67 | Albert Martin | 16 | Son | — | California |
| 68 | Robert Martin | 14 | Son | — | California |
| 69 | Donald Martin THIS PERSON | 11 | Son | — | California |
| 70 | Dorothy Mae Martin | 11 | Daughter | — | California |
| 71 | A. J. Hay | 42 | Head | Banker | Kansas |
| 72 | Greata Hay | 41 | Wife | — | Kansas |
| 73 | Lolita Hay | 16 | Daughter | — | California |
| 74 | Charlene Hay | 13 | Daughter | — | California |
| 75 | A. J. Jr. Hay | 7 | Son | — | California |
| 76 | Gertrude Briesach | 20 | Maid | House Maid | Pennsylvania |
| 77 | Althea Catlin | 50 | Head | Saleswoman | New York |
| 78 | B. Westley Catlin | 22 | Daughter | Laboratory Assistant | New York |
| 79 | Bessie Mansfield | 64 | Head | — | Michigan |
| 80 | Lola Schefield | 41 | Maid | House Maid | Connecticut |
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)