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Thomas Hayes — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Alameda-County, California
Our Model Tree links this Thomas Hayes across the 1930 and 1940 US Censuses in Alameda-County, California (XGBoost, ~Confirmed) — first a son (b.~1928), then head of a 18-person household.
Age 12
b. ~1928
Male
Son
Born: California
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Alameda-County, California |
| Surname | Hayes |
| Given Name | Thomas |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | California |
| Additional Details | |
| Class of Worker | No |
| Highest Grade | No 7 |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Township / Ward | Ashland |
| Est. Birth Year | ~1928 |
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.
18 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Thomas | Age | Birth yr |
|---|---|---|---|---|
| Jean Armstrong | Daughter | — | 13 | ~1927 |
| Georgia Whalen | Daughter | — | 24 | ~1916 |
| Eugene Mcmahon | Other | — | 82 | ~1858 |
| Anna Hedberg | Other | — | 50 | ~1890 |
| Lida Hahn | Other | — | 67 | ~1873 |
| Lawrence Holm | Son | — | 3 | ~1937 |
| Joana Mcmahon | Other | — | 82 | ~1858 |
| Evelyn Kinney | Daughter | — | 31 | ~1909 |
| Robert Buxton | Son | — | 27 | ~1913 |
| Nellie Hummel | Other | — | 56 | ~1884 |
| Elizabeth Hummel | Other | — | 27 | ~1913 |
| J Faye | Other | — | 54 | ~1886 |
| Donald Holm | Son | — | 1 | ~1939 |
| Editha Hayes | Daughter | — | 18 | ~1922 |
| Alice Kinney | Daughter | — | 25 | ~1915 |
| Thomas Hayes | Son | — | 12 | ~1928 |
| Helen Armstrong | Head | — | 37 | ~1903 |
| John Hayes | Son | — | 12 | ~1928 |
Census Appearances
1930
Alameda, California
Son, age 3
Alameda, California · implied b. ~1927 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hayes |
| Given Name | Thomas M. Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | California |
| Mother's Birthplace | California |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1940
Alameda-County, California
Son, age 12
Alameda-County, California · implied b. ~1928 — 18 household members
| Surname | Hayes |
| Given Name | Thomas |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | California |
| Class of Worker | No |
| Highest Grade | No 7 |
| 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 Thomas Hayes across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Thomas Hayes
Son · 1940 · age 12 · b. ~1928 · California
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Sibling
Evelyn Kinney
Sibling · 1940 · age 31
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Donald Holm
Sibling · 1940 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Hayes
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Editha Hayes
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alice Kinney
Sibling · 1940 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Georgia Whalen
Sibling · 1940 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lawrence Holm
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Buxton
Sibling · 1940 · age 27
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jean Armstrong
Sibling · 1940 · age 13
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
1940 US Federal Census — Alameda-County, California
Open full size
1940 US Federal Census — Alameda-County, California
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00441-00074)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | William B Spurlin | 19 | Son | Asst. Supervisor | Nevada |
| 2 | Leonard Gilliam | 32 | Lodger | Reactor | California |
| 3 | Bruno Sherock | 62 | Head | Realtor | Germany |
| 4 | Ellen Sherock | 59 | Wife | — | California |
| 5 | Helen Sherock | 33 | Daughter | Secretary | California |
| 6 | Gin Pon | 35 | Servant | Janitor | China |
| 7 | Helen L Armstrong | 37 | Head | — | California |
| 8 | Jean B Armstrong | 13 | Daughter | — | California |
| 9 | Lawrence Holm | 3 | Son | — | California |
| 10 | Donald Holm | 1 | Son | — | California |
| 11 | Georgia Whalen | 24 | Daughter | Secretary | California |
| 12 | Lida Johnson Hahn | 67 | Guest | — | California |
| 13 | Anna Hedberg | 50 | Housekeeper | Housekeeper | Sweden |
| 14 | Editha Hayes | 18 | Daughter | — | California |
| 15 | John Hayes | 12 | Son | — | California |
| 16 | Thomas Hayes THIS PERSON | 12 | Son | — | California |
| 17 | Eugene Mcmahon | 82 | Father | — | Wisconsin |
| 18 | Joana Mcmahon | 82 | Mother | — | Wisconsin |
| 19 | Evelyn Kinney | 31 | Daughter | Stenographer | California |
| 20 | Alice Kinney | 25 | Daughter | Stenographer | California |
| 21 | Nellie W Hummel | 56 | Mother | — | Colorado |
| 22 | Elizabeth F Hummel | 27 | Sister | Saleswoman | Colorado |
| 23 | Robert A Buxton | 27 | Son | Assistant Purser | Massachusetts |
| 24 | J Faye | 54 | Mother | Nurse Secretary | California |
| 25 | Nathan Weissman | 48 | Head | Proprietor | Poland |
| 26 | Eva Weissman | 45 | Wife | — | Poland |
| 27 | David Weissman | 24 | Son | Salesman | California |
| 28 | Helen Weissman | 15 | Daughter | — | California |
| 29 | Wallace W Hutchinson | 18 | Son | — | Dist. of Columbia |
| 30 | Sarah Jones | 25 | Wife | — | Michigan |
| 31 | Edward Hogarty | 6 | Grandson | — | California |
| 32 | Kathryn Mae Finnerty | 26 | Daughter | Stenographer | California |
| 33 | Virgil Harlan Wilkinson | 27 | Lodger | Bookkeeper | California |
| 34 | Eugene Eastep | 19 | Lodger | Stock Clerk | Montana |
| 35 | James M Bricker | 53 | Head | — | Missouri |
| 36 | Hazel D Bricker | 42 | Wife | — | Indiana |
| 37 | Wm W Clark | 47 | Head | Electrician | Ohio |
| 38 | Pearl W Clark | 33 | Wife | — | Utah |
| 39 | Betty J Clark | 16 | Daughter | — | California |
| 40 | Betty L Decker | 16 | Step-daughter | — | Utah |
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)