JF
John Frazier — 1930 US Census Record
Linked across censuses1930 United States Federal Census · San Luis Obispo, California
Our Model Tree links this John Frazier across the 1920 and 1930 US Censuses in San Luis Obispo, California (XGBoost, ~Confirmed) — first a head (b.~1888), then head of a 9-person household.
Age 42
b. ~1888
Male
Head
Born: California
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | San Luis Obispo, California |
| Surname | Frazier |
| Given Name | John T. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 42 |
| Marital Status | Married |
| Birthplace | California |
| Age at First Marriage | 26 |
| Father's Birthplace | California |
| Mother's Birthplace | California |
| Additional Details | |
| Occupation | Farmer |
| Industry | Dairy farm |
| Class of Worker | VVVV |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Veteran | No |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Occupation | Farmer |
| Township / Ward | Santa Margarita Township |
| 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.
9 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Leona Frazier | Spouse | — | 34 | ~1896 |
| John Frazier | Head | — | 42 | ~1888 |
| Doris Frazier | Daughter | — | 13 | ~1917 |
| Florence Frazier | Daughter | — | 9 | ~1921 |
| Marjorie Frazier | Daughter | — | 7 | ~1923 |
| Richard Frazier | Son | — | 11 | ~1919 |
| Ruth Frazier | Daughter | — | 5 | ~1925 |
| Joyce Frazier | Daughter | — | 1 | ~1929 |
| Charles Frazier | Son | — | 6 | ~1924 |
Census Appearances
1920
San Luis …
Head, age 31
San Luis Obispo, California · implied b. ~1889 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Frazier |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | California |
| Father's Birthplace | California |
| Mother's Birthplace | California |
| Occupation | Farmer |
| Industry | General Farm |
| Class of Worker | OA |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | O |
| Home Free/Mortgaged | F |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1930
San Luis …
Head, age 42
San Luis Obispo, California · implied b. ~1888 — 9 household members
| Surname | Frazier |
| Given Name | John T. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 42 |
| Marital Status | Married |
| Birthplace | California |
| Age at First Marriage | 26 |
| Father's Birthplace | California |
| Mother's Birthplace | California |
| Occupation | Farmer |
| Industry | Dairy farm |
| Class of Worker | VVVV |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Veteran | No |
| 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 Frazier across 2 US Census years (1920 and 1930) in San Luis Obispo, California, using XGBoost record linkage.
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This person
Anchor record
John Frazier
Head · 1930 · age 42 · b. ~1888 · California
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — San Luis Obispo, California
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1930 US Federal Census — San Luis Obispo, California
Page Contents
50 people indexed on this census page (ia:1930:californiacensus00reel213:0782)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Fred H. Wilkinson | 54 | Head | Farmer | Iowa |
| 52 | Minnie Wilkinson | 39 | Wife | — | Alabama |
| 53 | Margaret Wilkinson | 8 | Daughter | — | Arkansas |
| 54 | Rex Wilkinson | 7 | Son | — | Alabama |
| 55 | Robert A. Grant | 56 | Head | Farmer | California |
| 56 | Christine Grant | 44 | Wife | — | California |
| 57 | Cedric Grant | 10 | Son | — | California |
| 58 | Fannie Moon | 40 | Head | Teacher | New York |
| 59 | Theresa Moon | 24 | Sister | Teacher | Washington |
| 60 | — | None | — | — | — |
| 61 | Charles E. Blake | 46 | Head | Farmer | California |
| 62 | Carrie E. Blake | 39 | Wife | — | California |
| 63 | John E. Blake | 11 | Son | — | California |
| 64 | William Blake | 6 | Son | — | California |
| 65 | John T. Frazier THIS PERSON | 42 | Head | Farmer | California |
| 66 | Leona Frazier | 34 | Wife | — | California |
| 67 | Doris Frazier | 13 | Daughter | — | California |
| 68 | Richard Frazier | 11 | Son | — | California |
| 69 | Florence Frazier | 9 | Daughter | — | California |
| 70 | Marjorie Frazier | 7 | Daughter | — | California |
| 71 | Charles Frazier | 6 | Son | — | California |
| 72 | Ruth Frazier | 5 | Daughter | — | California |
| 73 | Joyce Frazier | 1 | Daughter | — | California |
| 74 | John D. Bliss | 37 | Head | Farmer | Illinois |
| 75 | Frank Bates | 52 | Lodger | Laborer | Virginia |
| 76 | Wilhelmina Bates | 47 | Housekeeper | Housekeeper | Nebraska |
| 77 | Roman Arebalo | 30 | Head | Laborer | California |
| 78 | Carrie Arebalo | 20 | Wife | — | California |
| 79 | Georgia Arebalo | 1 | Daughter | — | California |
| 80 | Darlene Arebalo | 0 | Daughter | — | California |
| 81 | Mary Arebalo | 46 | Head | — | California |
| 82 | Alfredo Arebalo | 24 | Son | Laborer | California |
| 83 | Domingo Arebalo | 20 | Son | Laborer | California |
| 84 | Mike Arebalo | 18 | Son | Laborer | California |
| 85 | Mary Arebalo | 16 | Daughter | — | California |
| 86 | Adel Arebalo | 14 | Daughter | — | California |
| 87 | William Arebalo | 11 | Son | — | California |
| 88 | Joe Arebalo | 30 | Son | Bus Driver | California |
| 89 | Iris Arebalo | 17 | Daughter-in-law | — | Kansas |
| 90 | Bonnie Arebalo | 0 | Grandson | — | California |
| 91 | Tom Vaca | 52 | Head | Farmer | California |
| 92 | Lupe Vaca | 49 | Wife | — | California |
| 93 | Joe Vaca | 21 | Son | Ranger-Keeper | California |
| 94 | Lucy Vaca | 18 | Daughter | — | California |
| 95 | Thomas Vaca | 16 | Son | Ranger-Keeper | California |
| 96 | Virginia Vaca | 14 | Daughter | — | California |
| 97 | Andrew Vaca | 11 | Son | — | California |
| 98 | Dave Vaca | 8 | Son | — | California |
| 99 | Fred Vaca | 4 | Son | — | California |
| 100 | George Vaca | 1 | Son | — | California |
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)