JW
John Walsh — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Marin-County, California
Our Model Tree links this John Walsh across the 1920, 1930 and 1940 US Censuses in Marin-County, California (XGBoost, ~Confirmed) — first a head (b.~1874), then head of a 4-person household.
Age 66
b. ~1874
Male
Head
Born: New York
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Marin-County, California |
| Surname | Walsh |
| Given Name | John P. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 66 |
| Marital Status | Married |
| Birthplace | New York |
| 1935 Residence (City) | San Rafael |
| 1935 Residence (County) | Marin |
| Additional Details | |
| Occupation | Towerman |
| Industry | Steam Railroad |
| Class of Worker | PW |
| Hours Worked | 56 |
| Income (1939) | 1625 |
| Highest Grade | No 8 |
| 1935 Residence | Same House |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
| Occupation | Towerman |
| Township / Ward | San Rafael |
| Est. Birth Year | ~1874 |
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 John | Age | Birth yr |
|---|---|---|---|---|
| John Walsh | Head | — | 66 | ~1874 |
| Carl Walsh | Son | — | 31 | ~1909 |
| Charles Walsh | Son | — | 33 | ~1907 |
| Martha Walsh | Spouse | — | 61 | ~1879 |
Census Appearances
1920
Marin, California
Head, age 45
Marin, California · implied b. ~1875 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Walsh |
| Given Name | John P. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | New York |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Foreman |
| Industry | Steam Railroad |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | O |
| Home Free/Mortgaged | F |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1930
Marin, California
Head, age 56
Marin, California · implied b. ~1874 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Walsh |
| Given Name | John P. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 56 |
| Marital Status | Married |
| Birthplace | New York |
| Age at First Marriage | 30 |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Occupation | Foreman |
| Industry | Railroad |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 5000 |
| Radio Set | R |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1940
Marin-County, California
Head, age 66
Marin-County, California · implied b. ~1874 — 4 household members
| Surname | Walsh |
| Given Name | John P. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 66 |
| Marital Status | Married |
| Birthplace | New York |
| 1935 Residence (City) | San Rafael |
| 1935 Residence (County) | Marin |
| Occupation | Towerman |
| Industry | Steam Railroad |
| Class of Worker | PW |
| Hours Worked | 56 |
| Income (1939) | 1625 |
| Highest Grade | No 8 |
| 1935 Residence | Same House |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
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 John Walsh across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Walsh
Head · 1940 · age 66 · b. ~1874 · 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 — Marin-County, California
Open full size
1940 US Federal Census — Marin-County, California
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00261-00715)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Antoinette Ferrario | 56 | Head | Janitress | Italy |
| 2 | Daniel Petta | 41 | Head | Sprayer | California |
| 3 | Theresa Petta | 46 | Wife | — | California |
| 4 | Lee N. Rockwood | 33 | Head | Cook | Utah |
| 5 | Vivian Rockwood | 31 | Wife | Cashier | Idaho |
| 6 | Norman Rockwood | 12 | Son | — | California |
| 7 | Chester Bonfiglio | 27 | Head | Apprentice Mill Man | California |
| 8 | Annabelle Bonfiglio | 20 | Wife | — | California |
| 9 | Evo Silva | 50 | Head | Laborer | Portugal |
| 10 | Vivian Silva | 18 | Daughter | Maid | California |
| 11 | Lucille Silva | 17 | Daughter | — | California |
| 12 | Evo Jr. Silva | 14 | Son | — | California |
| 13 | Rose Ventura | 32 | Housekeeper | — | California |
| 14 | Gertrude Foley | 27 | Head | — | California |
| 15 | Myles Foley | 36 | Brother | — | California |
| 16 | Louis Degener | 50 | Head | Salesman | California |
| 17 | Dell Degener | 46 | Wife | — | Alabama |
| 18 | Elizabeth Ferguson | 73 | Head | — | California |
| 19 | Ernest Rinaldi | 56 | Head | Cook | Italy |
| 20 | Theresa Rinaldi | 52 | Wife | — | Italy |
| 21 | Hugo Rinaldi | 20 | Son | — | California |
| 22 | Isador Rinaldi | 15 | Son | — | California |
| 23 | John P. Walsh THIS PERSON | 66 | Head | Towerman | New York |
| 24 | Martha Walsh | 61 | Wife | — | West Virginia |
| 25 | Charles E. Walsh | 33 | Son | Repairman | California |
| 26 | Carl L. Walsh | 31 | Son | Photographer | California |
| 27 | Charles Whiting | 44 | Head | Butcher | California |
| 28 | Lottie Whiting | 34 | Wife | Teacher | Hawaii |
| 29 | Wynn C. Clayton | 41 | Head | Collector | Utah |
| 30 | Anita Clayton | 41 | Wife | — | Porto Rico |
| 31 | Yvonne Clayton | 11 | Daughter | — | California |
| 32 | Harold Miller | 48 | Head | Butcher | California |
| 33 | Muriel Miller | 46 | Wife | — | California |
| 34 | Muriel Butler | 28 | Stepdaughter | Sales Lady | California |
| 35 | Herbert De La Montanya | 70 | Head | Justice Of Peace | California |
| 36 | Catherine De La Montanya | 57 | Wife | — | California |
| 37 | James De La Montanya | 18 | Son | — | California |
| 38 | James Blum | 13 | Lodger | — | California |
| 39 | Mary Freese | 21 | Servant | — | California |
| 40 | Vacant Line | None | — | — | — |
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)