MB
Mary Barr — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Los-Angeles-County, California
Our Model Tree links this Mary Barr across the 1920, 1930 and 1940 US Censuses in Los-Angeles-County, California (XGBoost, ~Confirmed) — first a spouse (b.~1888), then head of a 4-person household.
Age 52
b. ~1888
Female
Spouse
Born: Tennessee
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Los-Angeles-County, California |
| Surname | Barr |
| Given Name | Mary B. |
| Relationship to Head | wife |
| Sex | F |
| Color / Race | White |
| Age | 52 |
| Marital Status | Married |
| Birthplace | Tennessee |
| 1935 Residence (City) | Los Angeles City |
| 1935 Residence (County) | Los Angeles |
| Additional Details | |
| Industry | 20 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Tennessee |
| Birth Country | United States |
| Birthplace (normalized) | tennessee |
| Township / Ward | Los Angeles City |
| Est. Birth Year | ~1888 |
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 |
|---|---|---|---|---|
| Dudley Barr | Head | — | 53 | ~1887 |
| Paul Barr | Son | — | 25 | ~1915 |
| Florence Barr | Daughter | — | 14 | ~1926 |
| Mary Barr | Spouse | — | 52 | ~1888 |
Census Appearances
1920
Los Angeles, …
Spouse, age 34
Los Angeles, California · implied b. ~1886 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Barr |
| Given Name | Mary L. |
| Relationship to Head | wife |
| Sex | F |
| Color / Race | White |
| Age | 34 |
| Marital Status | Married |
| Birthplace | Tennessee |
| Father's Birthplace | Tennessee |
| Mother's Birthplace | Tennessee |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Tennessee |
| Birth Country | United States |
| Birthplace (normalized) | tennessee |
1930
Los Angeles, …
Spouse, age 41
Los Angeles, California · implied b. ~1889 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Barr |
| Given Name | Mary E. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 41 |
| Marital Status | Married |
| Birthplace | Tennessee |
| Age at First Marriage | 23 |
| Father's Birthplace | Tennessee |
| Mother's Birthplace | Tennessee |
| Can Read/Write | Yes |
| Birth State | Tennessee |
| Birth Country | United States |
| Birthplace (normalized) | tennessee |
1940
Los-Angeles-County, California
Spouse, age 52
Los-Angeles-County, California · implied b. ~1888 — 4 household members
| Surname | Barr |
| Given Name | Mary B. |
| Relationship to Head | wife |
| Sex | F |
| Color / Race | White |
| Age | 52 |
| Marital Status | Married |
| Birthplace | Tennessee |
| 1935 Residence (City) | Los Angeles City |
| 1935 Residence (County) | Los Angeles |
| Industry | 20 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Tennessee |
| Birth Country | United States |
| Birthplace (normalized) | tennessee |
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 Barr across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Barr
Spouse · 1940 · age 52 · b. ~1888 · California
★ You are viewing this record
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-t0627-00416-00699)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Annie Thadhell | 95 | wife | — | Tennessee |
| 2 | Frank E. R. Moulton | 48 | head | Electrician | California |
| 3 | Cora L. R. Moulton | 49 | wife | — | California |
| 4 | Dudley M. Barr | 53 | head | Art Teacher | Mississippi |
| 5 | Mary B. Barr THIS PERSON | 52 | wife | — | Tennessee |
| 6 | Paul C. Barr | 25 | son | Bookkeeper | Montana |
| 7 | Florence R. Barr | 14 | daughter | — | California |
| 8 | Joseph P. Ruterman | 39 | head | Laborer | Arizona |
| 9 | Marie C. Ruterman | 34 | wife | — | Mexico |
| 10 | Joseph Arthur Ruterman | 5 | son | — | California |
| 11 | Anne Louise Ruterman | 4 | daughter | — | Arizona |
| 12 | Jean Dumes | 29 | head | Presser | Mexico |
| 13 | Julia Dumes | 27 | wife | — | Mexico |
| 14 | Jean Jr. Dumes | 3 | son | — | California |
| 15 | Julia Dumes | 1 | daughter | — | California |
| 16 | Jesse H. Cropper | 29 | head | Waiter | Utah |
| 17 | Helen C. Cropper | 24 | wife | — | Minnesota |
| 18 | Gary Lee Cropper | 3 | son | — | California |
| 19 | Phyllis Jeanne Cropper | 1 | daughter | — | California |
| 20 | David S. Benveniste | 39 | head | Register Clerk | Italy |
| 21 | Gertrude Benveniste | 36 | wife | — | Russia |
| 22 | Josephine A. Benveniste | 10 | daughter | — | California |
| 23 | Mary Rosentweig | 71 | mother-in-law | — | Russia |
| 24 | Collyn M. Smith | 32 | head | Waitress | Minnesota |
| 25 | Gareth Lee Smith | 12 | son | — | Minnesota |
| 26 | Robert Duane Smith | 10 | son | — | Minnesota |
| 27 | Elsie Bentzen | 60 | mother | — | Norway |
| 28 | John J. Herbert | 46 | head | Truck Driver | Texas |
| 29 | William J. Herbert | 18 | son | Delivery Boy | Texas |
| 30 | Jack E. Herbert | 17 | son | Salesman | California |
| 31 | Shirley Herbert | 15 | daughter | — | Texas |
| 32 | Robert D. Herbert | 12 | son | — | Texas |
| 33 | Stanley N. Williams | 37 | head | Trainer | Iowa |
| 34 | Madelyn L. Williams | 31 | wife | — | California |
| 35 | Norman Orlin Williams | 3 | son | — | California |
| 36 | Margaret C. Williams | 66 | mother | — | Iowa |
| 37 | James John Wilson | 35 | head | Salesman | England |
| 38 | Alta B. Wilson | 43 | wife | — | New Mexico |
| 39 | Elaine Ethel Wilson | 12 | daughter | — | California |
| 40 | Baldwin S. Daugherty | 28 | son | Apprentice Electrician | New Mexico |
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)