MS
Michael Sullivan — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Los-Angeles-County, California
Our Model Tree links this Michael Sullivan across the 1920, 1930 and 1940 US Censuses in Los-Angeles-County, California (XGBoost, ~Confirmed) — first a head (b.~1889), then head of a 3-person household.
Age 51
b. ~1889
Male
Head
Born: New Hampshire
Divorced
1940 Census Record Details
| Census Year | 1940 |
| Location | Los-Angeles-County, California |
| Surname | Sullivan |
| Given Name | Michael J Jr |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 51 |
| Marital Status | Divorced |
| Birthplace | New Hampshire |
| 1935 Residence (City) | Los Angeles City |
| 1935 Residence (County) | Los Angeles |
| Additional Details | |
| Occupation | Electrician |
| Industry | Moving Picture Studio |
| Class of Worker | PW |
| Hours Worked | 36 |
| Income (1939) | 214 |
| Highest Grade | 8 |
| 1935 Residence | Same House |
| Birth State | New Hampshire |
| Birth Country | United States |
| Birthplace (normalized) | new hampshire |
| Occupation | Electrician |
| Township / Ward | Los Angeles City |
| 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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Michael | Age | Birth yr |
|---|---|---|---|---|
| Nella Sullivan | Daughter | — | 13 | ~1927 |
| Michael Sullivan | Head | — | 51 | ~1889 |
| William Sullivan | Son | — | 11 | ~1929 |
Census Appearances
1920
Los Angeles, …
Other, age 31
Los Angeles, California · implied b. ~1889 — 44 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | Michael J |
| Relationship to Head | Roomer |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Single |
| Birthplace | New Hampshire |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Lineman |
| Industry | Electrical |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | New Hampshire |
| Birth Country | United States |
| Birthplace (normalized) | new hampshire |
1930
Los Angeles, …
Head, age 41
Los Angeles, California · implied b. ~1889 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | Michael A |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 41 |
| Marital Status | Married |
| Birthplace | New Hampshire |
| Age at First Marriage | 36 |
| Father's Birthplace | Irish Free State |
| Mother's Birthplace | Irish Free State |
| Occupation | Electrician |
| Industry | Oil Company |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 4000 |
| Radio Set | R |
| Birth State | New Hampshire |
| Birth Country | United States |
| Birthplace (normalized) | new hampshire |
1940
Los-Angeles-County, California
Head, age 51
Los-Angeles-County, California · implied b. ~1889 — 3 household members
| Surname | Sullivan |
| Given Name | Michael J Jr |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 51 |
| Marital Status | Divorced |
| Birthplace | New Hampshire |
| 1935 Residence (City) | Los Angeles City |
| 1935 Residence (County) | Los Angeles |
| Occupation | Electrician |
| Industry | Moving Picture Studio |
| Class of Worker | PW |
| Hours Worked | 36 |
| Income (1939) | 214 |
| Highest Grade | 8 |
| 1935 Residence | Same House |
| Birth State | New Hampshire |
| Birth Country | United States |
| Birthplace (normalized) | new hampshire |
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 Michael Sullivan across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Michael Sullivan
Head · 1940 · age 51 · b. ~1889 · 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
33 people indexed on this census page (nara:1940:m-t0627-00388-00638)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Dorothy Ella Stewart | 16 | Daughter | — | California |
| 2 | St. Madge Stewart | 80 | Mother | — | New York |
| 3 | Alfred Radjeski | 28 | Head | Shade Maker | New York |
| 4 | Edith Hazel Radjeski | 23 | Wife | — | New York |
| 5 | John Albert Radjeski | 4 | Son | — | New York |
| 6 | Mildred Munden | 34 | Head | Department Head | Iowa |
| 7 | Mary W Munden | 80 | Mother | — | Scotland |
| 12 | Emma Camp | 59 | Head | — | Wisconsin |
| 13 | Niven G Irving Camp | 36 | Son | Stock Clerk | Wisconsin |
| 14 | Grace Hall | 29 | Daughter | Stencil Mounter | California |
| 15 | Bessie E Brown | 71 | Head | — | Scotland |
| 16 | Wilmer S Thomas | 56 | Head | Plasterer | Colorado |
| 17 | Jean Thomas | 50 | Wife | Waitress | Kansas |
| 18 | Emma Everett | 74 | Mother-in-law | — | Iowa |
| 19 | Artie Schrayer | 53 | Sister-in-law | — | Missouri |
| 23 | Glen T Kiefaber | 38 | Head | Master Baker | Iowa |
| 24 | Elmer Lee Ringard | 26 | Head | Aircraft Inspector | Washington |
| 25 | Lillian Mae Ringard | 30 | Wife | — | Washington |
| 26 | Michael J Jr Sullivan THIS PERSON | 51 | Head | Electrician | New Hampshire |
| 27 | Nella Nell Sullivan | 13 | Daughter | — | California |
| 28 | William James Sullivan | 11 | Son | — | California |
| 29 | John Benn | 30 | Head | Truck Driver | New York |
| 30 | Florence Benn | 27 | Wife | — | Utah |
| 31 | Louis Ydeen | 66 | Head | Factory Supt | Denmark |
| 32 | Rosamond Ydeen | 64 | Wife | — | Kentucky |
| 33 | Dora Winkigler | 69 | Head | — | Ohio |
| 34 | Bernice Murnan | 48 | Daughter | — | Ohio |
| 35 | Jack Overlade | 24 | Head | Truck Driver | Utah |
| 36 | Evelyne Overlade | 22 | Wife | — | Massachusetts |
| 37 | Arlene Lois Overlade | 3 | Daughter | — | California |
| 38 | Carol Jean Overlade | 1 | Daughter | — | California |
| 39 | Adam Fawcett | 55 | Head | Real Estate | New York |
| 40 | Lula Fawcett | 55 | Wife | — | Indiana |
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)