JG
John Gill — 1940 US Census Record
Linked across censuses1940 United States Federal Census · San-Francisco-County, California
Our Model Tree links this John Gill across the 1930 and 1940 US Censuses in San-Francisco-County, California (XGBoost, ~Confirmed) — first a head (b.~1891), then head of a 12-person household.
Age 49
b. ~1891
Male
Head
Born: New Mexico
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | San-Francisco-County, California |
| Surname | Gill |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| Birthplace | New Mexico |
| 1935 Residence (City) | San Francisco |
| 1935 Residence (County) | San Francisco |
| Additional Details | |
| Occupation | 78 |
| Industry | Steam Fitter |
| Class of Worker | Building Project |
| Hours Worked | 2 |
| Highest Grade | H 2 |
| 1935 Residence | Same place |
| Birth State | New Mexico |
| Birth Country | United States |
| Birthplace (normalized) | new mexico |
| Occupation | 78 |
| Township / Ward | San Francisco |
| Est. Birth Year | ~1891 |
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.
12 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Raymond Gill | Son | — | 13 | ~1927 |
| Alma Gill | Daughter | — | 9 | ~1931 |
| Robert Gill | Son | — | 6 | ~1934 |
| Eileen Gill | Daughter | — | 15 | ~1925 |
| Annetta Gill | Daughter | — | 1 | ~1939 |
| Ernest Gill | Son | — | 3 | ~1937 |
| Lorraine Gill | Daughter | — | 11 | ~1929 |
| Charles Gill | Son | — | 4 | ~1936 |
| John Gill | Head | — | 49 | ~1891 |
| Milton Gill | Son | — | 8 | ~1932 |
| Angie Gill | Spouse | — | 38 | ~1902 |
| Priscilla Gill | Daughter | — | 17 | ~1923 |
Census Appearances
1930
San Francisco, …
Head, age 35
San Francisco, California · implied b. ~1895 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Gill |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | New Mexico |
| Age at First Marriage | 27 |
| Father's Birthplace | England |
| Mother's Birthplace | England |
| Occupation | Machinist |
| Industry | Machine Shop |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 30.00 |
| Radio Set | R |
| Birth State | New Mexico |
| Birth Country | United States |
| Birthplace (normalized) | new mexico |
1940
San-Francisco-County, California
Head, age 49
San-Francisco-County, California · implied b. ~1891 — 12 household members
| Surname | Gill |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| Birthplace | New Mexico |
| 1935 Residence (City) | San Francisco |
| 1935 Residence (County) | San Francisco |
| Occupation | 78 |
| Industry | Steam Fitter |
| Class of Worker | Building Project |
| Hours Worked | 2 |
| Highest Grade | H 2 |
| 1935 Residence | Same place |
| Birth State | New Mexico |
| Birth Country | United States |
| Birthplace (normalized) | new mexico |
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 Gill across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Gill
Head · 1940 · age 49 · b. ~1891 · California
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — San-Francisco-County, California
Open full size
1940 US Federal Census — San-Francisco-County, California
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00310-00266)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Sophie English | 16 | Daughter | Machinist Helper | California |
| 42 | Clarence English | 38 | Head | Machinist Helper | California |
| 43 | Alice English | 38 | Wife | — | California |
| 44 | Clarence English | 12 | Son | — | California |
| 45 | Genevieve English | 8 | Daughter | — | California |
| 46 | Mary Tyson | 75 | Head | — | England |
| 47 | John Tyson | 36 | Son | Bartender | California |
| 48 | Thomas Cook | 49 | Head | Sweeper | California |
| 49 | Pearl Cook | 52 | Wife | — | California |
| 50 | Marlin Smith | 27 | Head | Bookkeeper | Missouri |
| 51 | Lucille Smith | 28 | Wife | — | Nebraska |
| 52 | Louis Leccia | 40 | Head | Sales Clerk | Italy |
| 53 | Minnie Leccia | 41 | Wife | Sales Clerk | California |
| 54 | Jasper Schiele | 61 | Head | General Clerk | Illinois |
| 55 | Margaret Schiele | 61 | Wife | — | California |
| 56 | Theresa Schiele | 8 | Daughter | — | California |
| 57 | Frances Hansen | 5 | Roomer | — | California |
| 58 | John Gill THIS PERSON | 49 | Head | 78 | New Mexico |
| 59 | Angie Gill | 38 | Wife | — | Honolulu |
| 60 | Priscilla Gill | 17 | Daughter | — | Honolulu |
| 61 | Eileen Gill | 15 | Daughter | — | Honolulu |
| 62 | Raymond Gill | 13 | Son | — | California |
| 63 | Lorraine Gill | 11 | Daughter | — | California |
| 64 | Alma Gill | 9 | Daughter | — | California |
| 65 | Milton Gill | 8 | Son | — | California |
| 66 | Robert Gill | 6 | Son | — | California |
| 67 | Charles Gill | 4 | Son | — | California |
| 68 | Ernest Gill | 3 | Son | — | California |
| 69 | Annetta Gill | 1 | Daughter | — | California |
| 70 | Salvatore Pittsey | 54 | Head | Seaman | New York |
| 71 | Ralph Milligan | 49 | Head | Driver | Florida |
| 72 | Isabelle Milligan | 40 | Wife | — | California |
| 73 | Geraldine Milligan | 18 | Daughter | — | California |
| 74 | Warren Milligan | 17 | Son | — | California |
| 75 | Ralph Milligan | 11 | Son | — | California |
| 76 | Peter Wilde | 53 | Head | Packer | California |
| 77 | Mary Wilde | 50 | Wife | — | California |
| 78 | Cancelled | None | — | — | — |
| 79 | Lee Taylor | 36 | Head | Driver | Georgia |
| 80 | Martha Taylor | 39 | Wife | — | Minnesota |
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)