JF
John Frey — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Sonoma-County, California
Our Model Tree links this John Frey across the 1930 and 1940 US Censuses in Sonoma-County, California (XGBoost, ~Confirmed) — first a head (b.~1888), then head of a 10-person household.
Age 52
b. ~1888
Male
Head
Born: Kansas
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Sonoma-County, California |
| Surname | Frey |
| Given Name | John G |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 52 |
| Marital Status | Married |
| Birthplace | Kansas |
| 1935 Residence (City) | Santa Rosa Twp. |
| 1935 Residence (County) | Sonoma |
| Additional Details | |
| Occupation | Rancher |
| Industry | Fruit Ranch |
| Class of Worker | OA |
| Hours Worked | 60 |
| Income (1939) | 0 |
| Highest Grade | No 5 |
| 1935 Residence | Same place |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
| Occupation | Rancher |
| Township / Ward | Santa Rosa Twp |
| Est. Birth Year | ~1888 |
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 |
|---|---|---|---|---|
| Albert Frey | Son | — | 19 | ~1921 |
| Arthur Frey | Son | — | 12 | ~1928 |
| Doris Frey | Daughter | — | 2 | ~1938 |
| Dorothy Frey | Daughter | — | 7 | ~1933 |
| Emma Frey | Spouse | — | 42 | ~1898 |
| Freda Frey | Daughter | — | 17 | ~1923 |
| John Frey | Son | — | 2 | ~1938 |
| Walter Frey | Son | — | 15 | ~1925 |
| Evelyn Frey | Daughter | — | 9 | ~1931 |
| John Frey | Head | — | 52 | ~1888 |
Census Appearances
1930
Sonoma, California
Head, age 42
Sonoma, California · implied b. ~1888 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Frey |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 42 |
| Marital Status | Married |
| Birthplace | Kansas |
| Age at First Marriage | 32 |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Occupation | Farm Laborer |
| Industry | Farm |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | $10 |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
1940
Sonoma-County, California
Head, age 52
Sonoma-County, California · implied b. ~1888 — 10 household members
| Surname | Frey |
| Given Name | John G |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 52 |
| Marital Status | Married |
| Birthplace | Kansas |
| 1935 Residence (City) | Santa Rosa Twp. |
| 1935 Residence (County) | Sonoma |
| Occupation | Rancher |
| Industry | Fruit Ranch |
| Class of Worker | OA |
| Hours Worked | 60 |
| Income (1939) | 0 |
| Highest Grade | No 5 |
| 1935 Residence | Same place |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
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 Frey across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Frey
Head · 1940 · age 52 · b. ~1888 · 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 — Sonoma-County, California
Open full size
1940 US Federal Census — Sonoma-County, California
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00350-00735)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John G Frey THIS PERSON | 52 | Head | Rancher | Kansas |
| 2 | Emma H Frey | 42 | Wife | — | California |
| 3 | Albert R Frey | 19 | Son | Laborer | California |
| 4 | Freda A Frey | 17 | Daughter | — | California |
| 5 | Walter J Frey | 15 | Son | — | California |
| 6 | Arthur C Frey | 12 | Son | — | California |
| 7 | Evelyn E Frey | 9 | Daughter | — | California |
| 8 | Dorothy M Frey | 7 | Daughter | — | California |
| 9 | Doris Frey | 2 | Daughter | — | California |
| 10 | John G Frey | 2 | Son | — | California |
| 11 | Bertha A Hoff | 62 | Head | — | Russia |
| 12 | Elliott P Rich | 59 | Head | Rancher | California |
| 13 | Clifford C Rich | 28 | Son | Laborer | California |
| 14 | Adeline B Rich | 31 | Daughter-in-law | — | California |
| 15 | William S Cunningham | 79 | Head | — | California |
| 16 | Hannah Cunningham | 77 | Wife | — | England |
| 17 | Walter C Cox | 62 | Head | Rancher | Minnesota |
| 18 | Eria S Cox | 65 | Wife | — | Minnesota |
| 19 | Leland Adler | 3 | Nephew | — | California |
| 20 | Francis V Whipple | 35 | Head | Rancher | Minnesota |
| 21 | Florence M Whipple | 34 | Wife | Laborer | N. Dakota |
| 22 | Lucille Whipple | 15 | Daughter | — | Montana |
| 23 | Richard Whipple | 5 | Son | — | California |
| 24 | Joseph E Rose | 52 | Head | Rancher | Azores Island |
| 25 | Mary Rose | 48 | Wife | Laborer | Azores Island |
| 26 | Rolfe Pattibone | 40 | Head | Supervisor | California |
| 27 | Serupronia E Pattibone | 35 | Wife | Laborer | California |
| 28 | James Pattibone | 12 | Son | — | California |
| 29 | Janis Pattibone | 9 | Daughter | — | California |
| 30 | Neal Pattibone | 6 | Son | — | California |
| 31 | Fountney Carter | 56 | Head | Carpenter | Virginia |
| 32 | Annie Carter | 54 | Wife | — | Pennsylvania |
| 33 | Helen Carter | 29 | Daughter | Teacher | Virginia |
| 34 | Winifred Carter | 26 | Daughter | Secretary | California |
| 35 | Grace Carter | 21 | Daughter | — | California |
| 36 | Ross Carter | 18 | Son | — | Virginia |
| 37 | Hope Carter | 16 | Daughter | — | California |
| 38 | Virginia Carter | 15 | Daughter | — | California |
| 39 | George Carter | 12 | Son | — | California |
| 40 | Winifred C Stoecke | 6 | Grand daughter | — | California |
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)