WB
William Bird — 1940 US Census Record
Linked across censuses1940 United States Federal Census · San-Francisco-County, California
Our Model Tree links this William Bird across the 1920, 1930 and 1940 US Censuses in San-Francisco-County, California (XGBoost, ~Confirmed) — first a head (b.~1886), then head of a 4-person household.
Age 54
b. ~1886
Male
Head
Born: England
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | San-Francisco-County, California |
| Surname | Bird |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 54 |
| Marital Status | Married |
| Birthplace | England |
| 1935 Residence (City) | Belmont |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Stationary Engineer |
| Industry | City Health Dept |
| Class of Worker | GW |
| Hours Worked | 40 |
| Income (1939) | 2500 |
| Highest Grade | H 4 |
| 1935 Residence | California |
| Birth Country | England |
| Birthplace (normalized) | england |
| Occupation | Stationary Engineer |
| Township / Ward | San Francisco |
| Est. Birth Year | ~1886 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Lyle Hammill | Other | — | 40 | ~1900 |
| Marjorie Bird | Daughter | — | 29 | ~1911 |
| William Bird | Head | — | 54 | ~1886 |
| Mary Bird | Spouse | — | 56 | ~1884 |
Census Appearances
1920
San Francisco, …
Head, age 36
San Francisco, California · implied b. ~1884 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Bird |
| Given Name | William H. |
| Relationship to Head | head |
| Sex | M |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | England |
| Year of Immigration | 1906 |
| Naturalization Status | Naturalized |
| Father's Birthplace | England |
| Mother's Birthplace | England |
| Occupation | Salesman |
| Industry | Drygoods |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Birth Country | England |
| Year of Naturalization | 1911 |
| Birthplace (normalized) | england |
1930
San Francisco, …
Head, age 49
San Francisco, California · implied b. ~1881 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Bird |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| Birthplace | England |
| Naturalization Status | Naturalized |
| Year of Immigration | 1900 |
| Age at First Marriage | 21 |
| Father's Birthplace | England |
| Mother's Birthplace | England |
| Occupation | Stationary Engineer |
| Industry | Power Station |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Home Value / Rent | 35 |
| Birth Country | England |
| Birthplace (normalized) | england |
1940
San-Francisco-County, California
Head, age 54
San-Francisco-County, California · implied b. ~1886 — 4 household members
| Surname | Bird |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 54 |
| Marital Status | Married |
| Birthplace | England |
| 1935 Residence (City) | Belmont |
| Naturalization Status | Naturalized |
| Occupation | Stationary Engineer |
| Industry | City Health Dept |
| Class of Worker | GW |
| Hours Worked | 40 |
| Income (1939) | 2500 |
| Highest Grade | H 4 |
| 1935 Residence | California |
| Birth Country | England |
| Birthplace (normalized) | england |
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 Bird across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
William Bird
Head · 1940 · age 54 · b. ~1886 · 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 — San-Francisco-County, California
Open full size
1940 US Federal Census — San-Francisco-County, California
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00322-00264)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Harris Arthur Harris | 31 | Wife | Teacher | Palestine |
| 42 | Bertram Harris | 9 | Son | — | New York City |
| 43 | Romeo Ramirez | 47 | Head | Clerk | Mexico |
| 44 | Concepcion Ramirez | 46 | Wife | — | Mexico |
| 45 | Walter S Stone | 43 | Head | Dairyman | Sweden |
| 46 | Esther Stone | 37 | Wife | — | Mexico |
| 47 | Walter Stone | 4 | Son | — | California |
| 48 | Harold W Rakich | 47 | Head | Clerk | California |
| 49 | Bernice M Rakich | 27 | Wife | — | California |
| 50 | Harriet C Rakich | 23 | Daughter | Clerk | California |
| 51 | Mary S Rakich | 14 | Daughter | — | California |
| 52 | Stanley Rakich | 10 | Son | — | California |
| 53 | Theresa Rakich | 2 | Daughter | — | California |
| 54 | James Rae | 56 | Head | — | California |
| 55 | Vivian Rae | 55 | Wife | Artist | California |
| 56 | William Rae | 10 | Son | — | California |
| 57 | Nancy Rae | 8 | Daughter | — | California |
| 58 | Florence Church | 81 | Mother-in-law | — | Iowa |
| 59 | Eugene Deutschman | 67 | Head | Broker | California |
| 60 | Eugenia Deutschman | 60 | Wife | — | California |
| 61 | Raymond Deutschman | 30 | Son | Civil Engineer | California |
| 62 | Clare B Deutschman | 25 | Daughter | Teacher | California |
| 63 | Stella S Pickett | 57 | Head | — | California |
| 64 | Robert Pickett | 28 | Son | Mgr. Mfg. Dept. | California |
| 65 | Harry Krause | 51 | Head | Salesman | California |
| 66 | Mary Krause | 49 | Wife | — | California |
| 67 | Florence Krause | 29 | Daughter | Clerk (Teletype Operator) | California |
| 68 | Minnie Weller | 70 | Mother-in-law | — | California |
| 69 | Samuel Arenberg | 60 | Lodger | Repairer | Indiana |
| 70 | Ray Veio | 31 | Son-in-law | Accountant | Michigan |
| 71 | Katherine Veio | 30 | Daughter | — | Pennsyl. |
| 72 | William Bird THIS PERSON | 54 | Head | Stationary Engineer | England |
| 73 | Mary J Bird | 56 | Wife | — | England |
| 74 | Marjorie Bird | 29 | Daughter | — | England |
| 75 | Lyle Hammill | 40 | Lodger | Pbx Operator | Australia |
| 76 | George Esperance | 56 | Head | 52 | Turkey |
| 77 | Villia Esperance | 50 | Wife | — | Turkey |
| 78 | William Esperance | 23 | Son | Accountant | California |
| 79 | Gullena Esperance | 18 | Daughter | — | California |
| 80 | Marie Schoenfeld | 70 | Head | — | Germany |
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)