JC
John Conway — 1940 US Census Record
Linked across censuses1940 United States Federal Census · San-Mateo-County, California
Our Model Tree links this John Conway across the 1930 and 1940 US Censuses in San-Mateo-County, California (XGBoost, ~Confirmed) — first a son (b.~1928), then head of a 10-person household.
Age 12
b. ~1928
Male
Son
Born: California
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | San-Mateo-County, California |
| Surname | Conway |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | San Francisco |
| 1935 Residence (County) | San Francisco |
| Additional Details | |
| Highest Grade | H-1 |
| 1935 Residence | California |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Township / Ward | Burlingame City |
| Est. Birth Year | ~1928 |
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 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Mary Conway | Daughter | — | 10 | ~1930 |
| Patricia Conway | Daughter | — | 7 | ~1933 |
| Anne Conway | Daughter | — | 4 | ~1936 |
| Andrew Conway | Head | — | 44 | ~1896 |
| Fanny Thompson | Other | — | 37 | ~1903 |
| Philip Conway | Son | — | 6 | ~1934 |
| Kevin Conway | Son | — | 2 | ~1938 |
| Andrew Conway | Son | — | 9 | ~1931 |
| John Conway | Son | — | 12 | ~1928 |
| Mary Conway | Spouse | — | 39 | ~1901 |
Census Appearances
1930
San Francisco, …
Son, age 1
San Francisco, California · implied b. ~1929 — 12 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Conway |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Utah |
| Mother's Birthplace | Utah |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1940
San-Mateo-County, California
Son, age 12
San-Mateo-County, California · implied b. ~1928 — 10 household members
| Surname | Conway |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | San Francisco |
| 1935 Residence (County) | San Francisco |
| Highest Grade | H-1 |
| 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 John Conway across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Conway
Son · 1940 · age 12 · b. ~1928 · California
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Sibling
Mary Conway
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Andrew Conway
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Patricia Conway
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Kevin Conway
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Philip Conway
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Anne Conway
Sibling · 1940 · age 4
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 — San-Mateo-County, California
Open full size
1940 US Federal Census — San-Mateo-County, California
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-00332-00267)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John Bollini | 28 | Head | Laborer | California |
| 2 | Mary Bollini | 25 | Wife | — | West Virginia |
| 3 | Anne Bollini | 1 | Daughter | — | California |
| 4 | Arthur Remarel | 31 | Head | Salesman | California |
| 5 | Helen Remarel | 32 | Wife | — | Nebraska |
| 6 | Arthur Remarel | 6 | Son | — | Oregon |
| 7 | Julia Remarel | 4 | Daughter | — | Utah |
| 8 | Howell A. Davies | 30 | Head | Chemical Engineer | California |
| 9 | Constance Davies | 24 | Wife | — | Illinois |
| 10 | Carolyn Davies | 2 | Daughter | — | California |
| 11 | Peter J. Knapen | 44 | Head | Mechanic | California |
| 12 | Esther Knapen | 41 | Wife | Stenographer | California |
| 13 | Andrew J. Conway | 44 | Head | Broker | Ireland |
| 14 | Mary Conway | 39 | Wife | — | Ireland |
| 15 | John Conway THIS PERSON | 12 | Son | — | California |
| 16 | Mary Conway | 10 | Daughter | — | California |
| 17 | Andrew Conway | 9 | Son | — | California |
| 18 | Patricia Conway | 7 | Daughter | — | California |
| 19 | Philip Conway | 6 | Son | — | California |
| 20 | Anne Conway | 4 | Daughter | — | California |
| 21 | Kevin Conway | 2 | Son | — | California |
| 22 | Fanny Thompson | 37 | Maid | Maid | California |
| 23 | Bonner Gordon | 48 | Head | Owner | Montana |
| 24 | Martha Gordon | 38 | Wife | — | France |
| 25 | Bonner Gordon | 8 | Son | — | California |
| 26 | Joseph J. Lansner | 44 | Head | Vice President | New Jersey |
| 27 | Florence Lansner | 44 | Wife | — | Illinois |
| 28 | Joseph Lansner | 13 | Son | — | California |
| 29 | Arthur R. Whiffler | 58 | Head | Public Accountant | Michigan |
| 30 | Clara Whiffler | 57 | Wife | — | New Jersey |
| 31 | William Whiffler | 14 | Son | — | California |
| 32 | Anna Hoeppel | 79 | Mother-in-law | — | Germany |
| 33 | Walter Siqueira | 39 | Head | Traffic Officer | California |
| 34 | Mildred Siqueira | 35 | Wife | — | California |
| 35 | Walter Siqueira | 15 | Son | — | California |
| 36 | Walter Schwartz | 40 | Head | Salesman | California |
| 37 | Mildred Schwartz | 36 | Wife | — | California |
| 38 | Dian Schwartz | 6 | Daughter | — | California |
| 39 | Annie Brinton | 68 | Maid | Maid | Canada English |
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)