JC
John Connors — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Contra-Costa-County, California
Our Model Tree links this John Connors across the 1930 and 1940 US Censuses in Contra-Costa-County, California (XGBoost, ~Confirmed) — first a son (b.~1919), then head of a 7-person household.
Age 21
b. ~1919
Male
Son
Born: California
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Contra-Costa-County, California |
| 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 |
| Additional Details | |
| 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 |
| Occupation | Carpenter Apprentice |
| 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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Patrick Connors | Son | — | 22 | ~1918 |
| Rita Connors | Daughter | — | 14 | ~1926 |
| Anna Connors | Spouse | — | 61 | ~1879 |
| Frank Connors | Son | — | 17 | ~1923 |
| John Connors | Son | — | 21 | ~1919 |
| Anna Connors | Daughter | — | 23 | ~1917 |
| Frank Connors | Head | — | 66 | ~1874 |
Census Appearances
Son, age 11
Contra Costa, California · implied b. ~1919 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| 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 |
1940
Contra-Costa-County, California
Son, age 21
Contra-Costa-County, California · implied b. ~1919 — 7 household members
| 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 Connors across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Connors
Son · 1940 · age 21 · b. ~1919 · California
★ You are viewing this record
Sibling
Patrick Connors
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rita Connors
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Anna Connors
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Frank Connors
Sibling · 1940 · age 17
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 — Contra-Costa-County, California
Open full size
1940 US Federal Census — Contra-Costa-County, California
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00196-00372)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Mary Beta | 15 | Niece | — | California |
| 42 | John B. Jr. Taglieri | 57 | Head | Own Business | Italy |
| 43 | Victoria L. Taglieri | 43 | Wife | — | Italy |
| 44 | Alfonso Morchesi | 22 | Step-son | — | California |
| 45 | Alexandria Morchesi | 20 | Step-daughter | — | California |
| 46 | Victor F. Belfils | 25 | Head | Fireman | California |
| 47 | Edward G. Moberg | 66 | Head | U.S. P.O. Mess. | Minnesota |
| 48 | Agnes T. Moberg | 62 | Wife | — | Minnesota |
| 49 | Virginia N. Moberg | 19 | Daughter | — | Minnesota |
| 50 | Blake W. Woolery | 33 | Head | Truck Driver | North Dakota |
| 51 | Agnes Woolery | 31 | Wife | — | Kansas |
| 52 | Ernest H. Merlin | 53 | Head | Branch Assistant | Massachusetts |
| 53 | Isabella H. Merlin | 47 | Wife | — | Illinois |
| 54 | James E. Merlin | 22 | Son | Waiter & Busboy | Michigan |
| 55 | Ivan E. Merlin | 20 | Son | Warehouseman Helper | Washington |
| 56 | Isabelle C. Merlin | 14 | Daughter | — | Washington |
| 57 | Anastas H. Kapelis | 54 | Head | Job Foreman | Greece |
| 58 | Norma H. Kapelis | 43 | Wife | — | California |
| 59 | Norma H. Kapelis | 20 | Daughter | New Worker | California |
| 60 | Ernest H. Kapelis | 18 | Son | — | California |
| 61 | Harold H. Ritchey | 36 | Head | Carpenter | Washington |
| 62 | Naomi Ritchey | 28 | Wife | — | California |
| 63 | Tony Valenzia | 31 | Head | Gardener | California |
| 64 | Grace E. Valenzia | 23 | Wife | Packer | California |
| 65 | Frank Connors | 66 | Head | — | California |
| 66 | Anna B. Connors | 61 | Wife | — | California |
| 67 | Anna May Connors | 23 | Daughter | General Clerk | California |
| 68 | Patrick J. Connors | 22 | Son | Carpenter Apprentice | California |
| 69 | John W. Connors THIS PERSON | 21 | Son | Carpenter Apprentice | California |
| 70 | Frank G. Connors | 17 | Son | New Worker | California |
| 71 | Rita J. Connors | 14 | Daughter | — | California |
| 72 | Harold J. Davis | 48 | Head | Steelworker | California |
| 73 | Idalene Davis | 47 | Wife | — | California |
| 74 | Eugene Davis | 12 | Son | New Worker | California |
| 75 | June May Davis | 10 | Daughter | — | California |
| 76 | Royal Davis | 9 | Son | — | California |
| 77 | Frankie Davis | 2 | Son | — | California |
| 78 | William J. Porter | 58 | Head | Photographer | Wales |
| 79 | Ellen Porter | 48 | Wife | — | Utah |
| 80 | Alfred B. Folsom | 78 | Head | — | Illinois |
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)