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Mary Hagan — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Los-Angeles-County, California
Our Model Tree links this Mary Hagan across the 1930 and 1940 US Censuses in Los-Angeles-County, California (XGBoost, ~Confirmed) — first a daughter (b.~1924), then head of a 6-person household.
Age 16
b. ~1924
Female
Daughter
Born: California
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Los-Angeles-County, California |
| Surname | Hagan |
| Given Name | Mary J. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | Rosemead |
| 1935 Residence (County) | Los Angeles |
| Additional Details | |
| Occupation | Filing |
| Industry | N.Y.A. School |
| Class of Worker | GW |
| Hours Worked | 6 |
| Income (1939) | 91 |
| Highest Grade | H-2 |
| 1935 Residence | California |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Occupation | Filing |
| Township / Ward | El Monte Township |
| Est. Birth Year | ~1924 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Gerald Hagan | Son | — | 18 | ~1922 |
| Mary Hagan | Daughter | — | 16 | ~1924 |
| Donald Hagan | Son | — | 14 | ~1926 |
| Luther Hagan | Head | — | 45 | ~1895 |
| Richard Hagan | Son | — | 7 | ~1933 |
| Mildred Hagan | Spouse | — | 43 | ~1897 |
Census Appearances
1930
Los Angeles, …
Daughter, age 6
Los Angeles, California · implied b. ~1924 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hoggan |
| Given Name | Mary J |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Utah |
| Mother's Birthplace | Idaho |
| Occupation | none |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1940
Los-Angeles-County, California
Daughter, age 16
Los-Angeles-County, California · implied b. ~1924 — 6 household members
| Surname | Hagan |
| Given Name | Mary J. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | Rosemead |
| 1935 Residence (County) | Los Angeles |
| Occupation | Filing |
| Industry | N.Y.A. School |
| Class of Worker | GW |
| Hours Worked | 6 |
| Income (1939) | 91 |
| Highest Grade | H-2 |
| 1935 Residence | California |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
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 Hagan across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Hagan
Daughter · 1940 · age 16 · b. ~1924 · California
★ You are viewing this record
Sibling
Gerald Hagan
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Donald Hagan
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Richard Hagan
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
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-t0627-00228-00566)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Wesley H. Catalano | 9 | Son | — | California |
| 42 | Emil J. Romero | 55 | Head | Tailor | Mexico |
| 43 | Eva Romero | 53 | Wife | Tailoress | Minnesota |
| 44 | Emil J. Jr. Romero | 17 | Son | — | California |
| 45 | Luther W. Hagan | 45 | Head | Carpenter | Illinois |
| 46 | Mildred O. Hagan | 43 | Wife | — | Pennsylvania |
| 47 | Gerald L. Hagan | 18 | Son | — | Montana |
| 48 | Mary J. Hagan THIS PERSON | 16 | Daughter | Filing | California |
| 49 | Donald J. Hagan | 14 | Son | — | California |
| 50 | Richard A. Hagan | 7 | Son | — | California |
| 51 | Charlotte Morrison | 49 | Head | Kitchen Helper | Illinois |
| 52 | James Morrison | 18 | Son | — | California |
| 53 | Donna Morrison | 14 | Daughter | — | California |
| 54 | Skillman Asher | 48 | Head | Receiving Clerk | Kentucky |
| 55 | Nellie Mae Asher | 51 | Wife | — | Iowa |
| 56 | Russell M. Griffith | 45 | Head | Route Driver | Ohio |
| 57 | Edna Griffith | 42 | Wife | — | Texas |
| 58 | Alice F. M. Griffith | 8 | Daughter | — | California |
| 59 | Russell M. Jr. Griffith | 7 | Son | — | California |
| 60 | George R. Markham | 46 | Head | Shipping Clerk | Missouri |
| 61 | Irene S. Markham | 43 | Wife | — | Illinois |
| 62 | Robert L. Markham | 23 | Son | Driver | California |
| 63 | George R. Jr. Markham | 20 | Son | Butcher | California |
| 64 | William C. Markham | 12 | Son | — | California |
| 65 | Thelma B. Holloway | 34 | Head | Beauty Operator | Utah |
| 66 | Carrie Brindle | 26 | Partner | Counter Girl | Colorado |
| 67 | Hugh M. Dunbar | 43 | Head | Rabbit Breeder | Utah |
| 68 | Fay M. Dunbar | 34 | Wife | Clerk | Kansas |
| 69 | Sallie Copeland | 53 | Mother-in-law | — | Kansas |
| 70 | George C. Belman | 47 | Head | Outside Foreman | Canada-English |
| 71 | Evelyn C. Belman | 49 | Wife | — | Missouri |
| 72 | Jack Belman | 21 | Son | Truck Driver | Montana |
| 73 | Jesse D. Robinson | 31 | Head | Mechanic | Illinois |
| 74 | Mary L. Robinson | 26 | Wife | — | Arkansas |
| 75 | Carol D. Robinson | 7 | Son | — | California |
| 76 | Charlie D. Kanagee | 48 | Head | Manager | Greece |
| 77 | Lillian P. Kanagee | 43 | Wife | Waitress | Illinois |
| 78 | Thelma Lee | 23 | Niece | Waitress | Kentucky |
| 79 | Rose Mallory | 64 | Mother-in-law | — | Kentucky |
| 80 | Fred S. Jones | 32 | Head | Driver | California |
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)