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William Hayden — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Santa-Clara-County, California
Our Model Tree links this William Hayden across the 1930 and 1940 US Censuses in Santa-Clara-County, California (XGBoost, ~Confirmed) — first a head (b.~1881), then head of a 6-person household.
Age 59
b. ~1881
Male
Head
Born: Kentucky
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Santa-Clara-County, California |
| Surname | Hayden |
| Given Name | William |
| Relationship to Head | head |
| Sex | M |
| Color / Race | White |
| Age | 59 |
| Marital Status | Married |
| Birthplace | Kentucky |
| 1935 Residence (City) | Santa Clara City |
| 1935 Residence (County) | Santa Clara |
| Additional Details | |
| Occupation | laborer |
| Industry | construction |
| Class of Worker | PW |
| Hours Worked | 24 |
| Income (1939) | 160 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
| Occupation | Laborer |
| Township / Ward | Santa Clara City |
| Est. Birth Year | ~1881 |
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 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| William Hayden | Head | — | 59 | ~1881 |
| James Hayden | Son | — | 9 | ~1931 |
| Billie Hayden | Daughter | — | 13 | ~1927 |
| Bertrand Hayden | Son | — | 5 | ~1935 |
| Alice Hayden | Spouse | — | 23 | ~1917 |
| Lorraine Hayden | Daughter | — | 11 | ~1929 |
Census Appearances
1930
Santa Clara, …
Other, age 49
Santa Clara, California · implied b. ~1881 — 12 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hayden |
| Given Name | William |
| Relationship to Head | Boarder |
| Sex | M |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| Birthplace | Kentucky |
| Age at First Marriage | 23 |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1940
Santa-Clara-County, California
Head, age 59
Santa-Clara-County, California · implied b. ~1881 — 6 household members
| Surname | Hayden |
| Given Name | William |
| Relationship to Head | head |
| Sex | M |
| Color / Race | White |
| Age | 59 |
| Marital Status | Married |
| Birthplace | Kentucky |
| 1935 Residence (City) | Santa Clara City |
| 1935 Residence (County) | Santa Clara |
| Occupation | laborer |
| Industry | construction |
| Class of Worker | PW |
| Hours Worked | 24 |
| Income (1939) | 160 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
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 Hayden across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
William Hayden
Head · 1940 · age 59 · b. ~1881 · 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 — Santa-Clara-County, California
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1940 US Federal Census — Santa-Clara-County, California
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00340-00360)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Tony Mederia | 45 | head | — | California |
| 42 | John Mederia | 36 | head | Laborer | Portugal |
| 43 | Rose Mederia | 30 | wife | — | Hawaii |
| 44 | George Mederia | 12 | son | — | California |
| 45 | Helen Mederia | 10 | daughter | — | California |
| 46 | Irene Mederia | 6 | daughter | — | California |
| 47 | Jesus Arceo | 23 | head | Laborer | Mexico |
| 48 | Eleanor Arceo | 24 | wife | — | Arizona |
| 49 | Mary Esther Arceo | 5 | daughter | — | California |
| 50 | Louis Arceo | 1 | son | — | California |
| 51 | Jose Jimenez | 34 | head | Laborer | Mexico |
| 52 | Francisca Jimenez | 18 | wife | — | Arizona |
| 53 | Ramona Jimenez | 2 | daughter | — | California |
| 54 | Ellen F Pombo | 32 | head | — | Massachusetts |
| 55 | John Martin | 40 | head | Proprietor | Portugal |
| 56 | Mary Martin | 37 | wife | — | Madeira Is. |
| 57 | John Martin | 15 | son | — | Illinois |
| 58 | Mary Martin | 13 | daughter | — | California |
| 59 | Frank Martin | 9 | son | — | California |
| 60 | Joseph Martin | 21 | son | Clerk | Massachusetts |
| 61 | Mary Martin | 21 | daughter | — | Hawaii |
| 62 | William Hayden THIS PERSON | 59 | head | Laborer | Kentucky |
| 63 | Alice Hayden | 23 | wife | — | California |
| 64 | Billie May Hayden | 13 | daughter | — | Hawaii |
| 65 | Lorraine Hayden | 11 | daughter | — | Hawaii |
| 66 | James H. Hayden | 9 | son | — | California |
| 67 | Bertrand E. Hayden | 5 | son | — | California |
| 68 | Antone Andrade | 45 | head | Plumber | California |
| 69 | Mary Andrade | 40 | wife | — | Portugal |
| 70 | Katherine Andrade | 18 | daughter | — | California |
| 71 | Irene Andrade | 16 | daughter | — | California |
| 72 | William Andrade | 14 | son | — | California |
| 73 | Phillip Mendoza | 27 | head | Truck Driver | Portugal |
| 74 | Mary Mendoza | 22 | wife | — | California |
| 75 | Geraldine Mendoza | 3 | daughter | — | California |
| 76 | Phillip Mendoza | 2 | daughter | — | California |
| 77 | Phyllis Mendoza | 1 | daughter | — | California |
| 78 | Carrie Mendoza | 61 | mother | — | Portugal |
| 79 | Joseph Mendoza | 36 | brother | — | Portugal |
| 80 | Jesse Mello | 49 | head | Farm Hand | Portugal |
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)