JH
Joseph Hamilton — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Los-Angeles-County, California
Our Model Tree links this Joseph Hamilton across the 1930 and 1940 US Censuses in Los-Angeles-County, California (XGBoost, ~Confirmed) — first a son (b.~1929), then head of a 8-person household.
Age 11
b. ~1929
Male
Son
Born: California
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Los-Angeles-County, California |
| Surname | Hamilton |
| Given Name | Joseph H. Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | Los Angeles City |
| 1935 Residence (County) | LOS ANGELES |
| Additional Details | |
| Highest Grade | S 4 |
| 1935 Residence | Same place |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Township / Ward | Los Angeles City |
| Est. Birth Year | ~1929 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Joseph | Age | Birth yr |
|---|---|---|---|---|
| Josephine Hamilton | Daughter | — | 13 | ~1927 |
| Joseph Hamilton | Head | — | 46 | ~1894 |
| Mary Hamilton | Daughter | — | 15 | ~1925 |
| Rita Hamilton | Daughter | — | 6 | ~1934 |
| Joseph Hamilton | Son | — | 11 | ~1929 |
| Marie Hamilton | Spouse | — | 44 | ~1896 |
| George Hamilton | Son | — | 18 | ~1922 |
| James Sullivan | Other | — | 77 | ~1863 |
Census Appearances
1930
Los Angeles, …
Son, age 1
Los Angeles, California · implied b. ~1929 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hamilton |
| Given Name | Joseph |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Colorado |
| Mother's Birthplace | Illinois |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1940
Los-Angeles-County, California
Son, age 11
Los-Angeles-County, California · implied b. ~1929 — 8 household members
| Surname | Hamilton |
| Given Name | Joseph H. Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | Los Angeles City |
| 1935 Residence (County) | LOS ANGELES |
| Highest Grade | S 4 |
| 1935 Residence | Same place |
| 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 Joseph Hamilton across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Joseph Hamilton
Son · 1940 · age 11 · b. ~1929 · California
★ You are viewing this record
Sibling
Mary Hamilton
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rita Hamilton
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
George Hamilton
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Josephine Hamilton
Sibling · 1940 · age 13
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-t0627-00409-00203)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Dolores Mcdonald | 11 | Daughter | — | California |
| 42 | Raymond Mcdonald | 9 | Son | — | California |
| 43 | Ida M. Mcdonald | 67 | Mother | — | Canada-English |
| 44 | Henry H. Henke | 66 | Head | — | Germany |
| 45 | Ida P. Henke | 59 | Wife | — | Germany |
| 46 | Harry A. Henke | 40 | Head | Display Man | Illinois |
| 47 | Laura J. Henke | 32 | Wife | — | Missouri |
| 48 | Harry W. Henke | 7 | Son | — | California |
| 49 | Earl Tiburance | 32 | Head | Clerk | Oklahoma |
| 50 | Evelyn Tiburance | 21 | Wife | Clerk | Missouri |
| 51 | Clarence Ivers | 45 | Head | Stock Man | Nebraska |
| 52 | Mildreth L. Ivers | 45 | Wife | Bookkeeper | Massachusetts |
| 53 | Frank B. Keys | 67 | Head | — | Indiana |
| 54 | Helen Keys | 67 | Wife | — | Illinois |
| 55 | Raymond Fletcher | 28 | Head | Installer | Idaho |
| 56 | Janet Fletcher | 26 | Wife | — | California |
| 57 | Laura C. Hagstrom | 51 | Head | Repair Clerk | Massachusetts |
| 58 | Norbert W. Depew | 32 | Son | Waiter | California |
| 59 | George C. Marks | 39 | Head | Playground Director | Missouri |
| 60 | Lucile Marks | 39 | Wife | Musician | Nebraska |
| 61 | Zoe D. Fowler | 65 | Mother-in-law | — | Iowa |
| 62 | Joseph H. Hamilton | 46 | Head | Field Credit Collector | Colorado |
| 63 | Marie R. Hamilton | 44 | Wife | — | Illinois |
| 64 | George Hamilton | 18 | Son | Messenger | California |
| 65 | Mary E. Hamilton | 15 | Daughter | — | California |
| 66 | Josephine A. Hamilton | 13 | Daughter | — | California |
| 67 | Joseph H. Jr. Hamilton THIS PERSON | 11 | Son | — | California |
| 68 | Rita M. Hamilton | 6 | Daughter | — | California |
| 69 | James Sullivan | 77 | Father-in-law | — | Eire |
| 70 | Ida Van Brunt | 83 | Head | — | Wisconsin |
| 71 | Calvin C. Goodman | 63 | Head | Salesman | Florida |
| 72 | Anna E. Goodman | 58 | Wife | — | Florida |
| 73 | Flois Goodman | 35 | Daughter | Private Secretary | Florida |
| 74 | Charles Lee | 78 | Head | — | Ohio |
| 75 | Eliza B. Lee | 74 | Wife | — | Ohio |
| 76 | De Witt R. Lee | 43 | Son | Salesman | Washington |
| 77 | Meanna F. O'Brien | 71 | Head | — | Michigan |
| 78 | Genevieve K. O'Brien | 47 | Daughter | Bookkeeper Hand Crafts | Michigan |
| 79 | Blanche M. O'Brien | 37 | Daughter | Teacher | Michigan |
| 80 | Charles C.F. Harper | 40 | Head | Finish Carpenter | California |
Related Census Records
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)