JC
John Conner — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Contra Costa, California
Our Model Tree links this John Conner across the 1930 and 1940 US Censuses in Contra Costa, California (XGBoost, ~Confirmed) — first a son (b.~1919), then head of a 10-person household.
Age 11
b. ~1919
Male
Son
Born: California
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Contra Costa, California |
| Surname | Conner |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | California |
| Mother's Birthplace | California |
| Additional Details | |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Township / Ward | El Cerrito |
| Est. Birth Year | ~1919 |
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 1930 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Frank Conner | Head | — | 51 | ~1879 |
| Frank Conner | Son | — | 10 | ~1920 |
| Mary Conner | Daughter | — | 15 | ~1915 |
| George Conner | Son | — | 6 | ~1924 |
| John Conner | Son | — | 11 | ~1919 |
| Nacio Moraga | Son | — | ~1930 | |
| Carl Conner | Son | — | 23 | ~1907 |
| Alice Conner | Daughter | — | 8 | ~1922 |
| Edna Conner | Spouse | — | 51 | ~1879 |
| Dorothy Conner | Daughter | — | 19 | ~1911 |
Census Appearances
1930
Contra Costa, …
Son, age 11
Contra Costa, California · implied b. ~1919 — 10 household members
| Surname | Conner |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | California |
| Mother's Birthplace | California |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
Son, age 21
Contra-Costa-County, California · implied b. ~1919 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Connors |
| Given Name | John W. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | El Cerrito |
| 1935 Residence (County) | Contra Costa |
| Occupation | Carpenter apprentice |
| Industry | Building |
| Class of Worker | PW |
| Hours Worked | 24 |
| Income (1939) | 1495 |
| Highest Grade | H 1 |
| 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 John Conner across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Conner
Son · 1930 · age 11 · b. ~1919 · California
★ You are viewing this record
Sibling
George Conner
Sibling · 1930 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Conner
Sibling · 1930 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Conner
Sibling · 1930 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Nacio Moraga
Sibling · 1930 · age
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Carl Conner
Sibling · 1930 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Frank Conner
Sibling · 1930 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alice Conner
Sibling · 1930 · age 8
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
1930 US Federal Census — Contra Costa, California
Open full size
1930 US Federal Census — Contra Costa, California
Page Contents
50 people indexed on this census page (ia:1930:californiacensus00reel113:1034)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | — | 47 | — | Salesman | New York |
| 52 | — | 43 | — | None | Canada-Eng |
| 53 | — | 39 | — | Repairer | Finland |
| 54 | — | 32 | — | None | Finland |
| 55 | Lyle L. Lathrop | 24 | Head | Laborer | Michigan |
| 56 | Lyman J. Wilson | 31 | Head | Hatter | Kansas |
| 57 | Edith H. Wilson | 27 | Wife | Proprietor | Missouri |
| 58 | Robert L. Wilson | 5 | Son | None | Kansas |
| 59 | Andrew B. Wilson | 4 | Son | None | Kansas |
| 60 | Bernice B. Wilson | 12 | Daughter | None | California |
| 61 | Bertram F. Charles | 21 | Head | Installer | Iowa |
| 62 | Hallie Charles | 20 | Wife | None | Michigan |
| 63 | Dorothy Hall | 26 | Sister-in-law | Cashier | Michigan |
| 64 | Robert Hall | 4 | Nephew | None | Michigan |
| 65 | Dorothy Hall | 2 | Niece | None | Michigan |
| 66 | — | 21 | Boarder | None | California |
| 67 | Alexander Alurones | 35 | Head | Waiter | Greece |
| 68 | Socrates Rapelie | 44 | Head | Cook | Greece |
| 69 | Norma Rapelie | 31 | Wife | None | California |
| 70 | George Rapelie | 10 | Son | None | California |
| 71 | Augustine Rapelie | 8 | Son | None | California |
| 72 | William T. Eads | 47 | Head | Carpenter | Michigan |
| 73 | Mildred M. Eads | 43 | Wife | None | Iowa |
| 74 | John Arthur | 23 | Step-son | Proprietor | Iowa |
| 75 | Gene M. Moraga | 33 | Head | Salesman | California |
| 76 | Virginia L. Moraga | 25 | Wife | None | Washington |
| 77 | Gene Hope Moraga | 1 | Daughter | None | California |
| 78 | Frank Conner | 51 | Head | Carpenter | United States |
| 79 | Edna Conner | 51 | Wife | None | United States |
| 80 | Carl Conner | 23 | Son | Machine Op. | California |
| 81 | Dorothy Conner | 19 | Daughter | Usherette | California |
| 82 | Mary Conner | 15 | Daughter | None | California |
| 83 | John Conner THIS PERSON | 11 | Son | None | California |
| 84 | Frank Conner | 10 | Son | None | California |
| 85 | Alice Conner | 8 | Daughter | None | California |
| 86 | George Conner | 6 | Son | None | California |
| 87 | Nacio J. Moraga | 0 | Son | None | California |
| 88 | William J. Bales | 48 | Head | Proprietor | Wales |
| 89 | James George | 71 | Boarder | Proprietor | England |
| 90 | James R. Smith | 50 | Head | Janitor | Scotland |
| 91 | Victoria M. Smith | 63 | Wife | None | Germany |
| 92 | Cathline Smith | 21 | Daughter | Stenographer | Australia |
| 93 | Ivor J. Davies | 42 | Son-in-law | Electrician | Georgia |
| 94 | Olga Davies | 32 | Daughter | Stenographer | Scotland |
| 95 | Thomas Davies | 6 | Grandson | None | New York |
| 96 | Margaret Davies | 1 | Granddaughter | None | California |
| 97 | — | None | — | — | — |
| 98 | — | None | — | — | — |
| 99 | — | None | — | — | — |
| 100 | — | None | — | — | — |
Related Census Records
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)