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James Byrne — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Los-Angeles-County, California
Our Model Tree links this James Byrne across the 1920, 1930 and 1940 US Censuses in Los-Angeles-County, California (XGBoost, ~Confirmed) — first a head (b.~1887), then head of a 5-person household.
Age 53
b. ~1887
Male
Head
Born: Kansas
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Los-Angeles-County, California |
| Surname | Byrne |
| Given Name | James Henry |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 53 |
| Marital Status | Married |
| Birthplace | Kansas |
| 1935 Residence (City) | Los Angeles city |
| 1935 Residence (County) | Los Angeles |
| Additional Details | |
| Occupation | Plasterer |
| Industry | Plastering Contractor |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 2000 |
| Highest Grade | No 8 |
| 1935 Residence | Same house |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
| Occupation | Plasterer |
| Township / Ward | Los Angeles City |
| Est. Birth Year | ~1887 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| Dorothy Scott | Daughter | — | 23 | ~1917 |
| Florence Byrne | Spouse | — | 53 | ~1887 |
| Mary Byrne | Daughter | — | 20 | ~1920 |
| Carol Scott | Other | — | 12 | ~1928 |
| James Byrne | Head | — | 53 | ~1887 |
Census Appearances
1920
Los Angeles, …
Head, age 33
Los Angeles, California · implied b. ~1887 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Byrne |
| Given Name | James H |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Kansas |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | Mechanic |
| Industry | Machine Works |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | R |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
1930
Los Angeles, …
Head, age 44
Los Angeles, California · implied b. ~1886 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Byrns |
| Given Name | James H. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Kansas |
| Age at First Marriage | 27 |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Ohio |
| Occupation | Plasterer |
| Industry | Houses |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 10000 |
| Radio Set | R |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
1940
Los-Angeles-County, California
Head, age 53
Los-Angeles-County, California · implied b. ~1887 — 5 household members
| Surname | Byrne |
| Given Name | James Henry |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 53 |
| Marital Status | Married |
| Birthplace | Kansas |
| 1935 Residence (City) | Los Angeles city |
| 1935 Residence (County) | Los Angeles |
| Occupation | Plasterer |
| Industry | Plastering Contractor |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 2000 |
| Highest Grade | No 8 |
| 1935 Residence | Same house |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
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 James Byrne across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
James Byrne
Head · 1940 · age 53 · b. ~1887 · 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
40 people indexed on this census page (nara:1940:m-t0627-00388-00329)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Francis David Baird | 5 | Son | — | Kansas |
| 42 | Andrew G. Semeniuk | 41 | Head | U | Illinois |
| 43 | Katharine Semeniuk | 39 | Wife | — | Iowa |
| 44 | Shirley Jean Semeniuk | 13 | Daughter | — | Michigan |
| 45 | Paul A. Semeniuk | 9 | Son | — | California |
| 46 | Don Lawrence Semeniuk | 5 | Son | — | California |
| 47 | Yvonne Renee Semeniuk | 2 | Daughter | — | California |
| 48 | Beverly Joan Semeniuk | 0 | Daughter | — | California |
| 49 | Andrew A. Horgan | 58 | Head | Christ Science Practitioner | California |
| 50 | May Horgan | 61 | Wife | Christ Science Practitioner | California |
| 51 | James Henry Byrne THIS PERSON | 53 | Head | Plasterer | Kansas |
| 52 | Florence L. Byrne | 53 | Wife | — | Kansas |
| 53 | Mary Alice Byrne | 20 | Daughter | Bindery-Girl | California |
| 54 | Dorothy G. Scott | 23 | Daughter | Waitress | Kansas |
| 55 | Carol June Scott | 12 | Granddaughter | — | California |
| 56 | William C. Meek | 31 | Head | Surveyor | California |
| 57 | Betty B. Meek | 25 | Wife | — | California |
| 58 | William W. Blackburn | 40 | Head | Fireman | Pennsylvania |
| 59 | Mary J. Blackburn | 67 | Mother | — | Eire |
| 60 | George O. Beshears | 62 | Head | Salesman | Iowa |
| 61 | Blanche J. Beshears | 58 | Wife | — | Iowa |
| 62 | Calvin M. Gibbons | 41 | Head | Car-Man Shop-Mechanic | Kansas |
| 63 | Luella S. Gibbons | 39 | Daughter | — | Iowa |
| 64 | Thata C. Campanelli | 26 | Head | Salesman | Rhode Island |
| 65 | Olga M. Campanelli | 26 | Wife | — | Wyoming |
| 66 | Evelyn Frances Campanelli | 4 | Daughter | — | California |
| 67 | Rita Jeane Campanelli | 2 | Daughter | — | California |
| 68 | George L. Barr | 62 | Head | Handy Man | Ohio |
| 69 | J. Inez Barr | 64 | Wife | — | Nebraska |
| 70 | — | None | — | — | — |
| 71 | Charles E. Ross | 55 | Head | Mail Carrier | Kansas |
| 72 | Effie M. Ross | 62 | Wife | — | Ohio |
| 73 | Hazel Williams | 48 | Daughter | Lamp Shade Maker | Nebraska |
| 74 | Rebecca Williams | 19 | Granddaughter | Clerk Typist | California |
| 75 | Roland Williams | 18 | Grandson | — | California |
| 76 | Grey Goff | 62 | Head | Apt. Manager Keeper | Virginia |
| 77 | Myrtle Goff | 58 | Wife | Apt. Owner Manager | Washington |
| 78 | Dora Eugene Thomas | 24 | Lodger | Kitchen Worker | Connecticut |
| 79 | Janet Crain | 55 | Head | Marking Room Laundry | New Jersey |
| 80 | Elizabeth Valentine | 44 | Head | Waitress | New York |
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)