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William Lang — 1930 US Census Record
Linked across censuses1930 United States Federal Census · San Francisco, California
Our Model Tree links this William Lang across the 1930 and 1940 US Censuses in San Francisco, California (XGBoost, ~Confirmed) — first a son (b.~1925), then head of a 6-person household.
Age 5
b. ~1925
Male
Son
Born: California
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | San Francisco, California |
| Surname | Lang |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Austria Hungary |
| Mother's Birthplace | Florida |
| Additional Details | |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Township / Ward | San Francisco |
| Est. Birth Year | ~1925 |
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.
6 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Joseph Lang | Son | — | 7 | ~1923 |
| William Lang | Son | — | 5 | ~1925 |
| Joseph Lang | Head | — | 37 | ~1893 |
| Susan Lang | Daughter | — | 3 | ~1927 |
| Mary Lang | Daughter | — | 5 | ~1925 |
| Caroline Lang | Spouse | — | 37 | ~1893 |
Census Appearances
1930
San Francisco, …
Son, age 5
San Francisco, California · implied b. ~1925 — 6 household members
| Surname | Lang |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Austria Hungary |
| Mother's Birthplace | Florida |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1940
San-Francisco-County, California
Son, age 15
San-Francisco-County, California · implied b. ~1925 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Leong |
| Given Name | William |
| Relationship to Head | son |
| Sex | M |
| Color / Race | Chinese |
| Age | 15 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | San Francisco |
| 1935 Residence (County) | SAN FRANCISCO |
| Income (1939) | 0 |
| Highest Grade | 6 |
| 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 Lang across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
William Lang
Son · 1930 · age 5 · b. ~1925 · California
★ You are viewing this record
Sibling
Susan Lang
Sibling · 1930 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Lang
Sibling · 1930 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Lang
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
48 people indexed on this census page (ia:1930:californiacensus00reel200:0540)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | James Audriano | 56 | Head | Gardner | Italy |
| 2 | Margaret Audriano | 46 | Wife | — | Italy |
| 3 | Cornelia Audriano | 16 | Daughter | — | California |
| 6 | John J. Kelly | 45 | Head | Fireman | Ireland |
| 7 | Hanna Kelly | 45 | — | — | Ireland |
| 8 | Estella M. Hurley | 24 | Step daughter | Stenographer | California |
| 9 | Joseph Burns | 40 | Head | Electrician | California |
| 10 | Margaret Burns | 38 | Sister | — | California |
| 11 | Anne Burns | 43 | Sister | — | California |
| 12 | Nellie Burns | 35 | Sister | Bookkeeper | California |
| 13 | Joseph Lang | 37 | Head | Superintendent | Austria Hungary |
| 14 | Caroline Lang | 37 | Wife | — | Florida |
| 15 | Joseph Lang | 7 | Son | — | California |
| 16 | William Lang THIS PERSON | 5 | Son | — | California |
| 17 | Mary Lang | 5 | Daughter | — | California |
| 18 | Susan Lang | 3 | Daughter | — | California |
| 19 | Frank Lang | 45 | Head | Mechanic | Austria Hungary |
| 20 | Anna Lang | 47 | Wife | Servant | Austria Hungary |
| 21 | Timothy Collins | 47 | Head | Truckman | Ireland |
| 22 | Mollie M. Collins | 34 | Wife | — | Irish Free State |
| 23 | Timothy A. Collins | 8 | Son | — | California |
| 24 | Eleanor C. Collins | 7 | Daughter | — | California |
| 25 | Robert J. Collins | 4 | Son | — | California |
| 26 | Hugh Toner | 67 | Head | Retail Merchant | Ireland |
| 27 | Hannah Toner | 68 | Wife | — | New York |
| 28 | William H. Cates | 66 | Head | Gardner | Ireland |
| 29 | Grace M. Cates | 54 | Wife | — | California |
| 30 | George Dukier | 74 | Head | — | Austria |
| 31 | Theresa Dukier | 57 | Wife | — | Austria |
| 32 | Florence Quinterstine | 40 | Head | Seamstress | California |
| 33 | John E. Quinterstine | 19 | Son | Driver | California |
| 34 | Clifford J. Quinterstine | 11 | Son | — | California |
| 35 | Edna Buzzini | 37 | Sister | Laborer | California |
| 36 | Carl L. Denmark | 34 | Head | Carpenter | Sweden |
| 37 | Ida S. Denmark | 32 | Wife | — | Finland |
| 38 | Ruth G. Denmark | 4 | Daughter | — | California |
| 39 | Roy M. Denmark | 2 | Son | — | California |
| 40 | William D. Green | 47 | Head | Painter & Paper Hanger | California |
| 41 | Mary E. Green | 43 | Wife | — | California |
| 42 | Marie C. Green | 22 | Daughter | Typist | California |
| 43 | Francis R. Green | 20 | Son | — | California |
| 44 | John M. Taugh | 59 | Head | Chauffeur | Pennsylvania |
| 45 | Hannah M. Taugh | 51 | Wife | — | Michigan |
| 46 | Dorothy M. Tuggle | 23 | Step daughter | Waitress | Michigan |
| 47 | Eva Tuggle | 3 | Step daughter | — | California |
| 48 | William F. Green | 17 | Son | — | California |
| 49 | Bella V. Green | 15 | Niece | — | California |
| 50 | Doris R. Green | 14 | Niece | — | 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)