RM
Robert Mccarthy — 1940 US Census Record
Linked across censuses1940 United States Federal Census · San-Francisco-County, California
Our Model Tree links this Robert Mccarthy across the 1920, 1930 and 1940 US Censuses in San-Francisco-County, California (XGBoost, ~Confirmed) — first a head (b.~1895), then head of a 4-person household.
Age 45
b. ~1895
Male
Head
Born: Ireland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | San-Francisco-County, California |
| Surname | McCarthy |
| Given Name | Robert |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | Ireland |
| 1935 Residence (City) | San Francisco |
| 1935 Residence (County) | San Francisco |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Contractor |
| Industry | Own |
| Class of Worker | E |
| Hours Worked | 40 |
| Income (1939) | 4000 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
| Occupation | Contractor |
| Township / Ward | San Francisco |
| Est. Birth Year | ~1895 |
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 Robert | Age | Birth yr |
|---|---|---|---|---|
| John Mccarthy | Son | — | 16 | ~1924 |
| Robert Mccarthy | Son | — | 19 | ~1921 |
| Margaret Mccarthy | Spouse | — | 40 | ~1900 |
| Robert Mccarthy | Head | — | 45 | ~1895 |
Census Appearances
1920
San Francisco, …
Head, age 24
San Francisco, California · implied b. ~1896 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McCarthy |
| Given Name | Robert |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Married |
| Birthplace | Ireland |
| Year of Immigration | 1913 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Longshoreman |
| Industry | Docks |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Home Owned/Rented | O |
| Home Free/Mortgaged | F |
| Birth Country | Ireland |
| Year of Naturalization | 1918 |
| Birthplace (normalized) | ireland |
1930
San Francisco, …
Head, age 34
San Francisco, California · implied b. ~1896
●
Primary link
· ~Confirmed · 1 source
XGBoost
| Surname | McCarty |
| Given Name | Robert |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 34 |
| Marital Status | Single |
| Birthplace | Ireland |
| Naturalization Status | First papers filed |
| Year of Immigration | 1913 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Cleaner |
| Industry | Apt House |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Home Value / Rent | $20 |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1940
San-Francisco-County, California
Head, age 45
San-Francisco-County, California · implied b. ~1895 — 4 household members
| Surname | McCarthy |
| Given Name | Robert |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | Ireland |
| 1935 Residence (City) | San Francisco |
| 1935 Residence (County) | San Francisco |
| Naturalization Status | Naturalized |
| Occupation | Contractor |
| Industry | Own |
| Class of Worker | E |
| Hours Worked | 40 |
| Income (1939) | 4000 |
| Highest Grade | Hs 4 |
| 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 Robert Mccarthy across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Robert Mccarthy
Head · 1940 · age 45 · b. ~1895 · 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-t0627-00312-00242)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Neil Shea | 35 | Head | Sales Clerk | Montana |
| 2 | Margaret Shea | 60 | Mother | — | Ireland |
| 3 | Margaret G. Shea | 30 | Sister | Stenographer | Montana |
| 4 | Dorothy Shea | 7 | Daughter | — | Montana |
| 5 | James Barron | 32 | Head | Special Agent | California |
| 6 | Carolyn Barron | 33 | Wife | — | Illinois |
| 7 | Patricia Barron | 0 | Daughter | — | California |
| 8 | Robert Mccarthy THIS PERSON | 45 | Head | Contractor | Ireland |
| 9 | Margaret Mccarthy | 40 | Wife | — | Ireland |
| 10 | Robert Jr. Mccarthy | 19 | Son | — | California |
| 11 | John Mccarthy | 16 | Son | — | California |
| 12 | Francis Dougan | 58 | Head | Cable Worker | Ireland |
| 13 | Julia Dougan | 53 | Wife | — | Ireland |
| 14 | Catherine Dougan | 32 | Daughter | Nurse | California |
| 15 | Eileen Dougan | 22 | Daughter | — | California |
| 16 | Jane Dougan | 21 | Daughter | Stenographer | California |
| 17 | John Mckenney | 50 | Head | Naval Supply | Indiana |
| 18 | Phoebe Mckenney | 40 | Wife | Marker | Texas |
| 19 | Harry Mckenney | 20 | Son | Messenger | California |
| 20 | John Mckenney | 19 | Son | Clerk | California |
| 21 | Lois Mckenney | 18 | Daughter | — | California |
| 22 | John Buckley | 67 | Head | Stock Farmer | England |
| 23 | Elizabeth Buckley | 61 | Wife | — | England |
| 24 | 14 End Block | None | START | — | — |
| 25 | John Farrell | 44 | Head | Guard | California |
| 26 | Alice Farrell | 43 | Wife | — | Illinois |
| 27 | Jean Farrell | 13 | Daughter | — | Illinois |
| 28 | Andrew Edwards | 81 | Head | Retired Dentist | California |
| 29 | William Costa | 32 | Head | Owner Of Store | California |
| 30 | Lydia Costa | 27 | Wife | — | California |
| 31 | Lee Costa | 3 | Son | — | California |
| 32 | Ernest Jones | 50 | Head | Own Business | Ireland |
| 33 | Marian Jones | 50 | Wife | Worker For Husband | Illinois |
| 34 | Flint Marian Jones | 16 | Daughter | — | New York |
| 35 | Gustave Blair | 33 | Head | Hod Carrier | Sweden |
| 36 | Effie Blair | 33 | Wife | Bookkeeper | California |
| 37 | Nettie Brothers | 62 | Mother-in-law | — | California |
| 38 | David Menson | 41 | Head | Dentist | California |
| 39 | Mae Menson | 36 | Wife | — | Russia |
| 40 | Jacqueline Menson | 13 | Daughter | — | 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)