RA
Robert Alexander — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Los-Angeles-County, California
Our Model Tree links this Robert Alexander across the 1920, 1930 and 1940 US Censuses in Los-Angeles-County, California (XGBoost, ~Confirmed) — first a head (b.~1868), then head of a 3-person household.
Age 72
b. ~1868
Male
Head
Born: Scotland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Los-Angeles-County, California |
| Surname | Alexander |
| Given Name | Robert E. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 72 |
| Marital Status | Married |
| Birthplace | Scotland |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Los Angeles |
| Naturalization Status | Naturalized |
| Additional Details | |
| Highest Grade | No 8 |
| 1935 Residence | California |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
| Township / Ward | Tujunga Los Angeles City |
| Est. Birth Year | ~1868 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Robert Alexander | Head | — | 72 | ~1868 |
| Arthur Vaughan | Son | — | 36 | ~1904 |
| Inez Alexander | Spouse | — | 68 | ~1872 |
Census Appearances
1920
Los Angeles, …
Head, age 56
Los Angeles, California · implied b. ~1864 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Alexander |
| Given Name | Robert |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 56 |
| Marital Status | Married |
| Birthplace | Scotland |
| Year of Immigration | 1883 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Occupation | Meat Cutter |
| Industry | Shop |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Home Owned/Rented | O |
| Home Free/Mortgaged | F |
| Birth Country | Scotland |
| Year of Naturalization | 1898 |
| Birthplace (normalized) | scotland |
1930
Los Angeles, …
Head, age 66
Los Angeles, California · implied b. ~1864 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Alexander |
| Given Name | Robert G |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 66 |
| Marital Status | Married |
| Birthplace | Scotland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1879 |
| Age at First Marriage | 25 |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Occupation | none |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Home Value / Rent | 25 |
| Veteran | No |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
1940
Los-Angeles-County, California
Head, age 72
Los-Angeles-County, California · implied b. ~1868 — 3 household members
| Surname | Alexander |
| Given Name | Robert E. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 72 |
| Marital Status | Married |
| Birthplace | Scotland |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Los Angeles |
| Naturalization Status | Naturalized |
| Highest Grade | No 8 |
| 1935 Residence | California |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
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 Robert Alexander across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Robert Alexander
Head · 1940 · age 72 · b. ~1868 · California
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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
39 people indexed on this census page (nara:1940:m-t0627-00377-00709)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Lillian Nevens | 9 | Daughter | — | California |
| 42 | Grace Nevens | 7 | Daughter | — | California |
| 43 | Robert C. Chadwick | 51 | Head | Carpenter | Minnesota |
| 44 | Viola Chadwick | 46 | Wife | — | Missouri |
| 45 | Robert Chadwick | 18 | Son | — | Arkansas |
| 46 | Quentin Chadwick | 16 | Son | — | California |
| 47 | Marjorie Chadwick | 14 | Daughter | — | California |
| 48 | Gordon Chadwick | 11 | Son | — | California |
| 49 | Newland Chadwick | 9 | Son | — | California |
| 50 | Denner Baugher | 36 | Head | Crane | Illinois |
| 51 | Monte Baugher | 30 | Wife | — | Illinois |
| 52 | Yvonne Baugher | 15 | Daughter | — | Illinois |
| 53 | Peggy Baugher | 10 | Daughter | — | Texas |
| 54 | Herman Lange | 35 | Head | Truck Driver | New Mexico |
| 55 | Herman Jr. Lange | 13 | Son | — | California |
| 56 | Ralph Lange | 13 | Son | — | California |
| 57 | Frances Lange | 9 | Daughter | — | California |
| 58 | Zettie Cory | 28 | Housekeeper | Housekeeper | Colorado |
| 59 | Mona L. Cory | 3 | Daughter | — | California |
| 60 | Anna Leek | 61 | Mother-in-law | Machine Operator | Iowa |
| 61 | Frank L. Hall | 70 | Head | — | Missouri |
| 62 | Irvin J. Snyder | 65 | Head | Operator Pressing | Pennsylvania |
| 63 | Minerva Snyder | 64 | Wife | — | Pennsylvania |
| 64 | Edwin J. Taylor | 42 | Head | — | Illinois |
| 65 | Myrtle Taylor | 38 | Wife | — | California |
| 66 | Donald Taylor | 16 | Son | — | California |
| 67 | William H. Carlson | 48 | Head | Carpenter | Illinois |
| 68 | Rose Carlson | 50 | Wife | — | Illinois |
| 69 | Robert E. Alexander THIS PERSON | 72 | Head | — | Scotland |
| 70 | Inez G. Alexander | 68 | Wife | — | Nebraska |
| 71 | Arthur D. Vaughan | 36 | Son | Electrical Engineer | California |
| 72 | Thallie A. Fitzgerald | 78 | Head | — | Nebraska |
| 73 | John H. Persch | 64 | Head | Postmaster | Missouri |
| 74 | Gold Persch | 59 | Wife | — | Illinois |
| 75 | George Bader | 79 | Head | — | France |
| 76 | Alfred White | 27 | Head | Clerk | Minnesota |
| 77 | Dorothy White | 25 | Wife | — | California |
| 78 | Frederic White | 2 | Son | — | California |
| 79 | William J. Gayle | 40 | Head | Truck Driver | 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)