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Michael Walsh — 1940 US Census Record
Linked across censuses1940 United States Federal Census · San-Francisco-County, California
Our Model Tree links this Michael Walsh across the 1920, 1930 and 1940 US Censuses in San-Francisco-County, California (XGBoost, ~Confirmed) — first a head (b.~1880), then head of a 6-person household.
Age 60
b. ~1880
Male
Head
Born: Ireland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | San-Francisco-County, California |
| Surname | Walsh |
| Given Name | Michael |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 60 |
| Marital Status | Married |
| Birthplace | Ireland |
| 1935 Residence (City) | S. Francisco City |
| 1935 Residence (County) | San Francisco |
| Naturalization Status | First papers filed |
| Additional Details | |
| Occupation | Laborer |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 991 |
| Highest Grade | No |
| 1935 Residence | Same place |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
| Occupation | Laborer |
| Township / Ward | S Francisco City |
| Est. Birth Year | ~1880 |
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 Michael | Age | Birth yr |
|---|---|---|---|---|
| Katherine Walsh | Spouse | — | 55 | ~1885 |
| Katherine Walsh | Daughter | — | 19 | ~1921 |
| Eileen Walsh | Daughter | — | 26 | ~1914 |
| Richard Walsh | Son | — | 23 | ~1917 |
| Michael Walsh | Head | — | 60 | ~1880 |
| Mary Walsh | Daughter | — | 25 | ~1915 |
Census Appearances
1920
San Francisco, …
Other, age 40
San Francisco, California · implied b. ~1880 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Welsh |
| Given Name | Michael |
| Relationship to Head | Lodger |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Single |
| Birthplace | Ireland |
| Year of Immigration | 1900 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Conductor |
| Industry | Street Car Co |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth Country | Ireland |
| Year of Naturalization | 1910 |
| Birthplace (normalized) | ireland |
1930
San Francisco, …
Other, age 51
San Francisco, California · implied b. ~1879 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Walsh |
| Given Name | Michael |
| Relationship to Head | Brother-in-law |
| Sex | M |
| Color / Race | White |
| Age | 51 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| Naturalization Status | First papers filed |
| Year of Immigration | 1914 |
| Age at First Marriage | 20 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Laborer |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1940
San-Francisco-County, California
Head, age 60
San-Francisco-County, California · implied b. ~1880 — 6 household members
| Surname | Walsh |
| Given Name | Michael |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 60 |
| Marital Status | Married |
| Birthplace | Ireland |
| 1935 Residence (City) | S. Francisco City |
| 1935 Residence (County) | San Francisco |
| Naturalization Status | First papers filed |
| Occupation | Laborer |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 991 |
| Highest Grade | No |
| 1935 Residence | Same place |
| Birth Country | Ireland |
| Birthplace (normalized) | 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 Michael Walsh across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Michael Walsh
Head · 1940 · age 60 · b. ~1880 · 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-t0627-00309-00023)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Claire Cohnheim | 76 | Head | — | California |
| 2 | John A. Hunt | 30 | Head | Clerk | Nebraska |
| 3 | Elma Hunt | 28 | Wife | — | Nebraska |
| 4 | Fawn E. Crawford | 32 | Brother-in-law | Attendant | Nebraska |
| 5 | Bertha Crawford | 39 | Sister | — | Nebraska |
| 6 | Bert Snock | 24 | Head | Sheet Metal Shop | Arizona |
| 7 | Erin I. Snock | 22 | Wife | — | California |
| 8 | Hilmer Della | 32 | Head | Janitor | Iowa |
| 9 | Bertha Della | 28 | Wife | — | California |
| 10 | Sandra Della | 5 | Daughter | — | California |
| 11 | Ernest Cloud | 25 | Brother | Laborer | California |
| 12 | Michael Walsh THIS PERSON | 60 | Head | Laborer | Ireland |
| 13 | Katherine Walsh | 55 | Wife | — | Ireland |
| 14 | Eileen Walsh | 26 | Daughter | — | California |
| 15 | Mary Walsh | 25 | Daughter | Stenographer | California |
| 16 | Richard Walsh | 23 | Son | Clerk | California |
| 17 | Katherine Walsh | 19 | Daughter | Stenographer | California |
| 18 | William G. Poole | 60 | Head | Engineer Helper | England |
| 19 | Mabel V. Poole | 54 | Wife | — | California |
| 20 | Frank G. Poole | 24 | Son | — | California |
| 21 | Frank Ficken | 51 | Brother-in-law | Bar Tender | California |
| 22 | Serfin Machado | 34 | Head | Dairy Man | California |
| 23 | Jennie Machado | 33 | Wife | — | California |
| 24 | Dorothy Gooding | 14 | Daughter | — | California |
| 25 | Maria Baptiste | 74 | Mother-in-law | — | Portugal |
| 26 | Frank Batistich | 50 | Head | Proprietor | Yugoslavia |
| 27 | Theresa Batistich | 47 | Wife | — | Yugoslavia |
| 28 | John Batistich | 21 | Son | Clerk | California |
| 29 | Francis Batistich | 17 | Daughter | — | California |
| 30 | John Montedonico | 31 | Head | Conductor | Italy |
| 31 | Clara Montedonico | 27 | Wife | Stenographer | Italy |
| 32 | Joseph Hedrick | 50 | Head | — | Austria |
| 33 | Rose Hedrick | 46 | Wife | — | California |
| 34 | Joseph Hedrick | 19 | Son | — | California |
| 35 | George Hedrick | 14 | Son | — | California |
| 36 | Katherine Maisser | 54 | Head | — | Illinois |
| 37 | Hyman Ludwig | 63 | Lodger | Tailor | Russia |
| 38 | Josefen Paridek | 71 | Head | — | Czechoslovakia |
| 39 | John Marquardsen | 56 | Head | Glass Worker | California |
| 40 | Emily Marquardsen | 54 | Wife | — | California |
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)