KS
Katherine Sullivan — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Los-Angeles-County, California
Our Model Tree links this Katherine Sullivan across the 1920, 1930 and 1940 US Censuses in Los-Angeles-County, California (XGBoost, ~Confirmed) — first a spouse (b.~1878), then head of a 3-person household.
Age 62
b. ~1878
Female
Spouse
Born: Ireland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Los-Angeles-County, California |
| Surname | Sullivan |
| Given Name | Katherine |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 62 |
| Marital Status | Married |
| Birthplace | Ireland |
| 1935 Residence (City) | Los Angeles City |
| 1935 Residence (County) | Los Angeles |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
| Township / Ward | Los Angeles City |
| Est. Birth Year | ~1878 |
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 Katherine | Age | Birth yr |
|---|---|---|---|---|
| Katherine Sullivan | Spouse | — | 62 | ~1878 |
| John Sullivan | Son | — | 38 | ~1902 |
| Michael Sullivan | Head | — | 69 | ~1871 |
Census Appearances
1920
Los Angeles, …
Other, age 40
Los Angeles, California · implied b. ~1880 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | Kitty |
| Relationship to Head | Roomer |
| Sex | F |
| Color / Race | White |
| Age | 40 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| Year of Immigration | 1882 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Waitress |
| Industry | Hotel |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1930
Los Angeles, …
Other, age 50
Los Angeles, California · implied b. ~1880
●
Primary link
· ~Confirmed · 1 source
XGBoost
| Surname | Sullivan |
| Given Name | Katherine |
| Relationship to Head | Head-H |
| Sex | F |
| Color / Race | White |
| Age | 50 |
| Marital Status | Single |
| Birthplace | Ireland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1905 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Dressmaker |
| Industry | Factory |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Home Value / Rent | 35.00 |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1940
Los-Angeles-County, California
Spouse, age 62
Los-Angeles-County, California · implied b. ~1878 — 3 household members
| Surname | Sullivan |
| Given Name | Katherine |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 62 |
| Marital Status | Married |
| Birthplace | Ireland |
| 1935 Residence (City) | Los Angeles City |
| 1935 Residence (County) | Los Angeles |
| Class of Worker | 0 |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
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 Katherine Sullivan across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Katherine Sullivan
Spouse · 1940 · age 62 · b. ~1878 · 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-t0627-00393-00123)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Ollie Dircks | 35 | Wife | — | N. Dakota |
| 42 | Helen Dircks | 15 | Daughter | — | California |
| 43 | Rex B. Jr. Goodcell | 31 | Head | Attorney | California |
| 44 | Helen M. Goodcell | 32 | Wife | School Teacher | Texas |
| 45 | Katherine Goodcell | 5 | Daughter | — | California |
| 46 | Lilian Eastwood | 26 | Maid | — | Missouri |
| 47 | Hermann Muller | 60 | Head | Collector | New York |
| 48 | Dorothy Muller | 50 | Wife | Saleslady | New Jersey |
| 49 | John J. Patten | 42 | Head | Waiter | Pennsylvania |
| 50 | Genevieve A. Patten | 38 | Wife | — | New York |
| 51 | Line Error Vacant | None | — | — | — |
| 52 | Ends Here | None | Block | — | — |
| 53 | Robert A. Woods | 33 | Head | Salesman | California |
| 54 | Rae Woods | 32 | Wife | Secretary | California |
| 55 | Robert A. Jr. Woods | 9 | Son | — | California |
| 56 | Lester C. Bunch | 29 | Brother-in-law | Chef | Texas |
| 57 | Dorothy Bunch | 30 | Sister | — | Texas |
| 58 | Michael Sullivan | 69 | Head | — | Ireland |
| 59 | Katherine Sullivan THIS PERSON | 62 | Wife | — | Ireland |
| 60 | John J. Sullivan | 38 | Son | New Worker | California |
| 61 | Jack C. Smith | 55 | Head | Actor | Massachusetts |
| 62 | Ruth Smith | 38 | Wife | Cosmetic Demonstrator | New Hampshire |
| 63 | Edward Brothers | 42 | Head | Painter | Pennsylvania |
| 64 | Vera Brothers | 32 | Wife | Saleslady | Texas |
| 65 | Helen Brothers | 7 | Daughter | — | California |
| 66 | Alice Brothers | 5 | Daughter | — | California |
| 67 | Margaret Brothers | 73 | Mother | — | Maryland |
| 68 | George Walton | 44 | Head | Pest Exterminator | England |
| 69 | Agnes Walton | 46 | Wife | — | Norway |
| 70 | Joseph L. Walton | 15 | Son | Delivery Boy | California |
| 71 | Dana Mae Walton | 11 | Daughter | — | California |
| 72 | Felix Walton | 8 | Daughter | — | California |
| 73 | Ilene Walton | 6 | Daughter | — | California |
| 74 | Clarence Jordan | 46 | Head | Laborer | Kansas |
| 75 | Marie Jordan | 35 | Wife | — | Oklahoma |
| 76 | Doris Lee Jordan | 3 | Son | — | California |
| 77 | Elbert Callister | 38 | Head | Loan Counsel | Utah |
| 78 | Helen Callister | 41 | Wife | — | Utah |
| 79 | Talbot Callister | 18 | Son | — | Utah |
| 80 | Thomas Callister | 17 | Son | — | Utah |
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)