JM
James Mckenna — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Los-Angeles-County, California
Our Model Tree links this James Mckenna across the 1930 and 1940 US Censuses in Los-Angeles-County, California (XGBoost, ~Confirmed) — first a head (b.~1889), then head of a 10-person household.
Age 51
b. ~1889
Male
Head
Born: Colorado
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Los-Angeles-County, California |
| Surname | McKenna |
| Given Name | James G. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | Colorado |
| 1935 Residence (City) | Los Angeles |
| 1935 Residence (County) | Los Angeles |
| Additional Details | |
| Occupation | Install-helper |
| Industry | Gas-city |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 336 |
| Highest Grade | No 4 |
| 1935 Residence | Same place |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
| Occupation | Install-Helper |
| Township / Ward | Los Angeles |
| Est. Birth Year | ~1889 |
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 James | Age | Birth yr |
|---|---|---|---|---|
| James Mckenna | Son | — | 21 | ~1919 |
| Dale Mckenna | Son | — | 1 | ~1939 |
| James Mckenna | Head | — | 51 | ~1889 |
| Edna Mckenna | Daughter | — | 12 | ~1928 |
| Bertha Mckenna | Spouse | — | 41 | ~1899 |
| William Mckenna | Son | — | 17 | ~1923 |
| Dorthy Mckenna | Daughter | — | 5 | ~1935 |
| David Mckenna | Other | — | 3 | ~1937 |
| Margaret Mckenna | Daughter | — | 19 | ~1921 |
| Carolyn Mckenna | Daughter | — | 14 | ~1926 |
Census Appearances
1930
Los Angeles, …
Head, age 41
Los Angeles, California · implied b. ~1889 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McKenna |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 41 |
| Marital Status | Married |
| Birthplace | Colorado |
| Age at First Marriage | 29 |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Wales |
| Occupation | Shipping Clerk |
| Industry | Pipe Organ Fact |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 3000 |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
1940
Los-Angeles-County, California
Head, age 51
Los-Angeles-County, California · implied b. ~1889 — 10 household members
| Surname | McKenna |
| Given Name | James G. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | Colorado |
| 1935 Residence (City) | Los Angeles |
| 1935 Residence (County) | Los Angeles |
| Occupation | Install-helper |
| Industry | Gas-city |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 336 |
| Highest Grade | No 4 |
| 1935 Residence | Same place |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
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 Mckenna across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
James Mckenna
Head · 1940 · age 51 · b. ~1889 · 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-t0627-00375-00328)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Maurine D. Mahan | 21 | Wife | Saleswoman | Texas |
| 2 | Elwood P. Brown | 26 | Head | Ser. Station Att. | Washington |
| 3 | Lillian R. Brown | 24 | Wife | — | California |
| 4 | Louis R. Rahn | 39 | Head | Install Meter | Nebraska |
| 5 | Helen R. Rahn | 34 | Wife | — | Nebraska |
| 6 | Shirley J. Rahn | 15 | Daughter | — | Nebraska |
| 7 | John F. Burke | 57 | Head | Painter | Nebraska |
| 8 | Bertha A. Burke | 50 | Wife | — | Iowa |
| 9 | Theodore G. Strehlow | 52 | Head | Salesman | Minnesota |
| 10 | Elizabeth Strehlow | 47 | Wife | Saleswoman | Minnesota |
| 11 | James G. Mckenna THIS PERSON | 51 | Head | Install-Helper | Colorado |
| 12 | Bertha M. Mckenna | 41 | Wife | — | Pennsylvania |
| 13 | James J. Mckenna | 21 | Son | Auto Mech | Pennsylvania |
| 14 | Margaret R. Mckenna | 19 | Daughter | — | California |
| 15 | William C. Mckenna | 17 | Son | Salesman | California |
| 16 | Carolyn P. Mckenna | 14 | Daughter | — | California |
| 17 | Edna L. Mckenna | 12 | Daughter | — | California |
| 18 | Dorthy P. Mckenna | 5 | Daughter | — | California |
| 19 | David E. Mckenna | 3 | Daughter|Son | — | California |
| 20 | Dale L. Mckenna | 1 | Son | — | California |
| 21 | Edward H. Payne | 30 | Head | Clerk-Order | Wyoming |
| 22 | Harrieth Payne | 25 | Wife | Bookkeeper | North Dakota |
| 23 | Matilda Pirkl | 64 | Head | — | Minnesota |
| 24 | Donald J. Pirkl | 23 | Son | Mail Carrier | Minnesota |
| 25 | James F. Sanders | 43 | Head | Auto-Mech | Arkansas |
| 26 | Eva A. Sanders | 42 | Wife | Cook | Arkansas |
| 27 | Mary J. Sanders | 16 | Daughter | — | Arkansas |
| 28 | John J. Gandy | 41 | Head | Power Shovel | Arkansas |
| 29 | Hazel H. Gandy | 33 | Wife | Typist | Arkansas |
| 30 | W. J. Sanders | 80 | Father-in-law | — | Illinois |
| 31 | Jack W. J. Sanders | 28 | Brother-in-law | Salesman | Arkansas |
| 32 | Ruby M. Sanders | 30 | Sister-in-law | — | Arkansas |
| 33 | Antaky Constantine | 47 | Head | Salesman | Syria |
| 34 | Victoria Constantine | 36 | Wife | — | New York |
| 35 | Donald Constantine | 13 | Son | — | Connecticut |
| 36 | Joan Grace Constantine | 6 | Daughter | — | New York |
| 37 | Luther C. Gullickson | 40 | Head | Oiler | South Dakota |
| 38 | Hazel L. Gullickson | 30 | Wife | Saleswoman | South Dakota |
| 39 | Walter P. Camron | 30 | Head | Welder | Oklahoma |
| 40 | Marie R. Camron | 33 | Wife | — | Oklahoma |
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)