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Joseph Bauer — 1930 US Census Record
Linked across censuses1930 United States Federal Census · San Francisco, California
Our Model Tree links this Joseph Bauer across the 1930 and 1940 US Censuses in San Francisco, California (XGBoost, ~Confirmed) — first a son (b.~1930), then head of a 10-person household.
Age 0
b. ~1930
Male
Son
Born: California
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | San Francisco, California |
| Surname | Bauer |
| Given Name | Joseph |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Additional Details | |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Township / Ward | San Francisco City |
| Est. Birth Year | ~1930 |
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 Joseph | Age | Birth yr |
|---|---|---|---|---|
| Anna Bauer | Spouse | — | 42 | ~1888 |
| John Bauer | Son | — | 15 | ~1915 |
| John Bauer | Head | — | 42 | ~1888 |
| William Bauer | Son | — | 3 | ~1927 |
| Joseph Bauer | Son | — | ~1930 | |
| George Bauer | Son | — | 5 | ~1925 |
| Arthur Bauer | Son | — | 11 | ~1919 |
| Paul Bauer | Son | — | 13 | ~1917 |
| Marie Bauer | Daughter | — | 1 | ~1929 |
| Helen Bauer | Daughter | — | 7 | ~1923 |
Census Appearances
1930
San Francisco, …
Son, age
San Francisco, California · implied b. ~1930 — 10 household members
| Surname | Bauer |
| Given Name | Joseph |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1940
San-Francisco-County, California
Son, age 10
San-Francisco-County, California · implied b. ~1930 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Bauer |
| Given Name | John W |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | San Francisco City |
| Highest Grade | No 3 |
| 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 Joseph Bauer across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Joseph Bauer
Son · 1930 · age 0 · b. ~1930 · California
★ You are viewing this record
Sibling
William Bauer
Sibling · 1930 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Arthur Bauer
Sibling · 1930 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Marie Bauer
Sibling · 1930 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
George Bauer
Sibling · 1930 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Paul Bauer
Sibling · 1930 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Bauer
Sibling · 1930 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Helen Bauer
Sibling · 1930 · age 7
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 Francisco, California
Open full size
1930 US Federal Census — San Francisco, California
Page Contents
50 people indexed on this census page (ia:1930:californiacensus00reel202:0611)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Gottlieb Alexander | 54 | Head | Machinist | Germany |
| 2 | Anna Alexander | 52 | Wife | — | Germany |
| 3 | Walter Alexander | 21 | Son | Machinist | United States |
| 4 | Raymond Alexander | 18 | Son | Apprentice | United States |
| 5 | Lillian Alexander | 16 | Daughter | — | United States |
| 6 | Arthur Alexander | 14 | Son | — | United States |
| 7 | Ruth Alexander | 12 | Daughter | — | United States |
| 8 | Jacob Alexander | 10 | Son | — | United States |
| 9 | Dorothy Alexander | 7 | Daughter | — | United States |
| 10 | Robert Alexander | 5 | Son | — | United States |
| 11 | Richard Alexander | 3 | Son | — | United States |
| 12 | James Alexander | 0 | Son | — | United States |
| 13 | Samuel Bauer | 44 | Head | Machinist | Germany |
| 14 | Anna Bauer | 44 | Wife | — | Germany |
| 15 | Anna Bauer | 17 | Daughter | — | United States |
| 16 | Elsie Bauer | 15 | Daughter | — | United States |
| 17 | Ruth Bauer | 12 | Daughter | — | United States |
| 18 | Edith Bauer | 10 | Daughter | — | United States |
| 19 | Jerome Schwartz | 44 | Head | Merchant | Wisconsin |
| 20 | Angeline Schwartz | 43 | Wife | — | Wisconsin |
| 21 | Jerome Schwartz | 20 | Son | — | Wisconsin |
| 22 | Robert Schwartz | 18 | Son | — | Wisconsin |
| 23 | Alice Schwartz | 14 | Daughter | — | Wisconsin |
| 24 | John Bauer | 42 | Head | Machinist | Germany |
| 25 | Anna Bauer | 42 | Wife | — | Germany |
| 26 | John Bauer | 15 | Son | — | United States |
| 27 | Paul Bauer | 13 | Son | — | United States |
| 28 | Arthur Bauer | 11 | Son | — | California |
| 29 | Helen Bauer | 7 | Daughter | — | California |
| 30 | George Bauer | 5 | Son | — | California |
| 31 | William Bauer | 3 | Son | — | California |
| 32 | Marie Bauer | 1 | Daughter | — | California |
| 33 | Joseph Bauer THIS PERSON | 0 | Son | — | California |
| 34 | John Bauer | 40 | Head | Painter | Germany |
| 35 | Anna Bauer | 43 | Wife | — | Germany |
| 36 | John Bauer | 17 | Son | — | United States |
| 37 | Anna Bauer | 13 | Daughter | — | United States |
| 38 | Marie Bauer | 5 | Daughter | — | United States |
| 39 | William Bauer | 62 | Head | Machinist | Germany |
| 40 | Mary Bauer | 59 | Wife | — | Germany |
| 41 | William Bauer | 34 | Son | — | United States |
| 42 | Anna Bauer | 31 | Daughter | — | United States |
| 43 | Marie Bauer | 29 | Daughter | — | United States |
| 44 | Peter Bauer | 55 | Head | Machinist | Germany |
| 45 | Anna Bauer | 53 | Wife | — | Germany |
| 46 | Peter Bauer | 21 | Son | — | United States |
| 47 | Joseph Bauer | 41 | Head | — | Germany |
| 48 | Anna Bauer | 40 | Wife | — | Germany |
| 49 | Joseph Bauer | 15 | Son | — | United States |
| 50 | Anna Bauer | 12 | Daughter | — | United States |
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)