WB
William Baird — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Sonoma-County, California
Our Model Tree links this William Baird across the 1930 and 1940 US Censuses in Sonoma-County, California (XGBoost, ~Confirmed) — first a head (b.~1878), then head of a 5-person household.
Age 62
b. ~1878
Male
Head
Born: North Ireland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Sonoma-County, California |
| Surname | Baird |
| Given Name | William H. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 62 |
| Marital Status | Married |
| Birthplace | North Ireland |
| 1935 Residence (City) | Santa Rosa Township |
| 1935 Residence (County) | Sonoma |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | General Labor |
| Industry | WPA Project |
| Class of Worker | GW |
| Hours Worked | 52 |
| Income (1939) | 525 |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| Birthplace (normalized) | north ireland |
| Occupation | General Labor |
| Township / Ward | Santa Rosa Township |
| Est. Birth Year | ~1878 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Florence Baird | Daughter | — | 24 | ~1916 |
| Dorothy Baird | Daughter | — | 25 | ~1915 |
| Elizabeth Baird | Spouse | — | 49 | ~1891 |
| William Baird | Head | — | 62 | ~1878 |
| Viola Baird | Daughter | — | 22 | ~1918 |
Census Appearances
1930
Sonoma, California
Head, age 52
Sonoma, California · implied b. ~1878 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Baird |
| Given Name | William H |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 52 |
| Marital Status | Married |
| Birthplace | North Ireland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1898 |
| Age at First Marriage | 37 |
| Father's Birthplace | Australia |
| Mother's Birthplace | North Ireland |
| Occupation | farmer |
| Industry | General farm |
| Class of Worker | OA |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Home Owned/Rented | O |
| Home Value / Rent | 3500 |
| Radio Set | No |
| Birthplace (normalized) | north ireland |
1940
Sonoma-County, California
Head, age 62
Sonoma-County, California · implied b. ~1878 — 5 household members
| Surname | Baird |
| Given Name | William H. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 62 |
| Marital Status | Married |
| Birthplace | North Ireland |
| 1935 Residence (City) | Santa Rosa Township |
| 1935 Residence (County) | Sonoma |
| Naturalization Status | Naturalized |
| Occupation | General Labor |
| Industry | WPA Project |
| Class of Worker | GW |
| Hours Worked | 52 |
| Income (1939) | 525 |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| Birthplace (normalized) | north ireland |
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 Baird across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
William Baird
Head · 1940 · age 62 · b. ~1878 · 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 — Sonoma-County, California
Open full size
1940 US Federal Census — Sonoma-County, California
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00350-00480)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | George Frey | 44 | Head | Farmer | Washington |
| 2 | Betty Frey | 46 | Wife | — | Nebraska |
| 3 | James L. Mcgee | 18 | Nephew | New Worker | Iowa |
| 4 | Archie Akera | 39 | Lodger | — | Iowa |
| 5 | James Gard | 58 | Head | Blasting | Montana |
| 6 | Amellia Gard | 45 | Wife | — | California |
| 7 | James Jr. Gard | 19 | Son | New Worker | California |
| 8 | Elizabeth M. Du Commun | 54 | Head | — | Wisconsin |
| 9 | Jennie M. Du Commun | 55 | Sister | — | Wisconsin |
| 10 | Cornelius A. Hood | 45 | Head | Truck Driver | England |
| 11 | Alta R. Hood | 39 | Wife | School Teacher | South Dakota |
| 12 | Patricia Hood | 14 | Daughter | — | California |
| 13 | Robbie Hood | 10 | Daughter | — | California |
| 14 | Cornile Hood | 6 | Daughter | — | California |
| 15 | Eddi A. Gambogi | 43 | Head | Truck Driver | California |
| 16 | Katherine Gambogi | 36 | Wife | — | California |
| 17 | John G. Barsi | 48 | Head | Farmer | California |
| 18 | George F. Peak | 62 | Head | Farmer | Tennessee |
| 19 | Margaret H. Peak | 30 | Daughter | Clerk | Canada English |
| 20 | George W. Peak | 17 | Son | New Worker | Canada English |
| 21 | Mary Jane Peak | 11 | Daughter | — | California |
| 22 | Edwin W. Akera | 67 | Head | — | California |
| 23 | Addie V. Akera | 65 | Wife | — | Oregon |
| 24 | Lawrence G. Keefer | 37 | Head | Owner | Kansas |
| 25 | Adele Keefer | 36 | Wife | — | California |
| 26 | Lawrence G. Jr. Keefer | 15 | Son | — | California |
| 27 | Leslie Keefer | 11 | Son | — | California |
| 28 | Margery Keefer | 5 | Daughter | — | California |
| 29 | John P. Allen | 62 | Head | Carpenter | California |
| 30 | Florence Allen | 57 | Wife | — | California |
| 31 | Lydia Keefer | 80 | Head | Farmer | Maryland |
| 32 | Ernest Burnett | 42 | Head | Letter Carrier | California |
| 33 | Elizabeth P. Burnett | 39 | Wife | — | California |
| 34 | William B. Pressley | 65 | Head | — | California |
| 35 | Charles E. Storer | 59 | Head | Auto Mechanic | Iowa |
| 36 | William H. Baird THIS PERSON | 62 | Head | General Labor | North Ireland |
| 37 | Elizabeth S. Baird | 49 | Wife | — | North Ireland |
| 38 | Dorothy E. Baird | 25 | Daughter | Nurse | Montana |
| 39 | Florence M. Baird | 24 | Daughter | Nurse | Montana |
| 40 | Viola M. Baird | 22 | Daughter | — | Montana |
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)