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William Hoffman — 1930 US Census Record
Linked across censuses1930 United States Federal Census · San Diego, California
Our Model Tree links this William Hoffman across the 1930 and 1940 US Censuses in San Diego, California (XGBoost, ~Confirmed) — first a son (b.~1922), then head of a 10-person household.
Age 8
b. ~1922
Male
Son
Born: California
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | San Diego, California |
| Surname | Hoffman |
| Given Name | William H |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Wisconsin |
| Mother's Birthplace | Nebraska |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Township / Ward | Escondido Township |
| Est. Birth Year | ~1922 |
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 1930 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Eleanor Hoffman | Daughter | — | 5 | ~1925 |
| Selma Hoffman | Daughter | — | 13 | ~1917 |
| Esther Hoffman | Daughter | — | 19 | ~1911 |
| Martha Hoffman | Daughter | — | 17 | ~1913 |
| William Hoffman | Head | — | 47 | ~1883 |
| Walter Hoffman | Son | — | 15 | ~1915 |
| William Hoffman | Son | — | 8 | ~1922 |
| Arnold Hoffman | Son | — | 21 | ~1909 |
| Karl Hoffman | Son | — | 12 | ~1918 |
| Susan Hoffman | Spouse | — | 43 | ~1887 |
Census Appearances
1930
San Diego, …
Son, age 8
San Diego, California · implied b. ~1922 — 10 household members
| Surname | Hoffman |
| Given Name | William H |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Wisconsin |
| Mother's Birthplace | Nebraska |
| Can Read/Write | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1940
San-Diego-County, California
Son, age 18
San-Diego-County, California · implied b. ~1922 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hoffmann |
| Given Name | William H. Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | Escondido Township |
| 1935 Residence (County) | San Diego |
| Occupation | Clerk |
| Industry | Drugstore |
| Class of Worker | PW |
| Hours Worked | 18 |
| Income (1939) | 419 |
| Highest Grade | H-4 |
| 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 William Hoffman across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
William Hoffman
Son · 1930 · age 8 · b. ~1922 · California
★ You are viewing this record
Sibling
Karl Hoffman
Sibling · 1930 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Selma Hoffman
Sibling · 1930 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Walter Hoffman
Sibling · 1930 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Eleanor Hoffman
Sibling · 1930 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Martha Hoffman
Sibling · 1930 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Esther Hoffman
Sibling · 1930 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Arnold Hoffman
Sibling · 1930 · age 21
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
1930 US Federal Census — San Diego, California
Open full size
1930 US Federal Census — San Diego, California
Page Contents
45 people indexed on this census page (ia:1930:californiacensus00reel190:0224)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | John C Duff | 65 | Head | Farmer | Scotland |
| 52 | Alice Duff | 54 | Wife | — | Scotland |
| 53 | George L Addison | 38 | Lodger | Salesman | England |
| 54 | James A Scott | 44 | Head | Farmer | Canada English |
| 55 | Ethel I Scott | 46 | Wife | — | Kansas |
| 56 | Stanley J Scott | 13 | Son | — | California |
| 57 | Maurice W Scott | 11 | Son | — | California |
| 58 | Andrew Christenson | 53 | Head | Farmer | Nebraska |
| 59 | Catherine Christenson | 37 | Wife | — | California |
| 60 | Albert H Christenson | 17 | Son | — | California |
| 61 | Myrtle E Christenson | 16 | Daughter | — | California |
| 62 | Alice L Christenson | 12 | Daughter | — | California |
| 63 | Frederick C Christenson | 10 | Son | — | California |
| 64 | Eva H Christenson | 8 | Daughter | — | California |
| 65 | Harry A Christenson | 5 | Son | — | California |
| 66 | Bruce E Christenson | 2 | Son | — | California |
| 67 | George U Sommer | 60 | Head | Farmer | Kentucky |
| 68 | Margaret Sommer | 61 | Wife | — | New York |
| 69 | Eva J Sommer | 24 | Daughter | Stenographer | New York |
| 70 | George F Sanchez | 70 | Head | Farmer | California |
| 71 | Diego Sanchez | 23 | Son | Laborer | California |
| 72 | Steven S Sanchez | 27 | Son | — | California |
| 73 | Frank Garcia | 56 | Lodger | Laborer | California |
| 74 | Louis Figueroa | 39 | Lodger | Laborer | Mexico |
| 75 | Lawrence S Gahr | 35 | Head | Merchant | California |
| 76 | Florence C Gahr | 31 | Wife | — | Michigan |
| 77 | Howard F Jewell | 12 | Ward | — | Iowa |
| 78 | Bessie E Copeland | 70 | Head | Manager | Michigan |
| 79 | William F Hoffman | 47 | Head | Clergyman | Wisconsin |
| 80 | Susan D Hoffman | 43 | Wife | — | Nebraska |
| 81 | Arnold W Hoffman | 21 | Son | Prescription Clerk | So. Dakota |
| 82 | Esther M Hoffman | 19 | Daughter | Packer | Nebraska |
| 83 | Martha D Hoffman | 17 | Daughter | — | Nebraska |
| 84 | Walter S Hoffman | 15 | Son | — | Nebraska |
| 85 | Selma L Hoffman | 13 | Daughter | — | Nebraska |
| 86 | Karl R Hoffman | 12 | Son | — | Nebraska |
| 87 | William H Hoffman THIS PERSON | 8 | Son | — | California |
| 88 | Eleanor S Hoffman | 5 | Daughter | — | California |
| 89 | Ernest Hoffmann | 37 | Head | Farmer | So. Dakota |
| 90 | Marie A Hoffmann | 39 | Wife | — | New York |
| 91 | Leroy H E Hoffmann | 14 | Son | — | So. Dakota |
| 92 | Orville E Hoffmann | 12 | Son | — | So. Dakota |
| 93 | Iva H Hoffmann | 11 | Daughter | — | So. Dakota |
| 94 | Irene C Hoffmann | 11 | Daughter | — | So. Dakota |
| 95 | Agnes M Hoffmann | 9 | Daughter | — | So. Dakota |
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)