RM
Robert Mccarthy — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Santa-Clara-County, California
Our Model Tree links this Robert Mccarthy across the 1930 and 1940 US Censuses in Santa-Clara-County, California (XGBoost, ~Confirmed) — first a son (b.~1929), then head of a 9-person household.
Age 11
b. ~1929
Male
Son
Born: California
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Santa-Clara-County, California |
| Surname | McCarthy |
| Given Name | Robert J |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | San Jose city |
| 1935 Residence (County) | Santa Clara |
| Additional Details | |
| Highest Grade | No 5 |
| 1935 Residence | Same place |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Township / Ward | San Jose City |
| Est. Birth Year | ~1929 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Richard Mccarthy | Son | — | 9 | ~1931 |
| William Mccarthy | Head | — | 41 | ~1899 |
| Betty Mccarthy | Daughter | — | 6 | ~1934 |
| Arthur Mccarthy | Son | — | 16 | ~1924 |
| Thomas Mccarthy | Son | — | 19 | ~1921 |
| Lillian Mccarthy | Daughter | — | 13 | ~1927 |
| Robert Mccarthy | Son | — | 11 | ~1929 |
| John Mccarthy | Son | — | 3 | ~1937 |
| Lillian Mccarthy | Spouse | — | 38 | ~1902 |
Census Appearances
1930
Santa Clara, …
Son, age 2
Santa Clara, California · implied b. ~1928 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McCarthy |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | California |
| Mother's Birthplace | Massachusetts |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1940
Santa-Clara-County, California
Son, age 11
Santa-Clara-County, California · implied b. ~1929 — 9 household members
| Surname | McCarthy |
| Given Name | Robert J |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | San Jose city |
| 1935 Residence (County) | Santa Clara |
| Highest Grade | No 5 |
| 1935 Residence | Same place |
| 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 Robert Mccarthy across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Robert Mccarthy
Son · 1940 · age 11 · b. ~1929 · California
★ You are viewing this record
Sibling
Betty Mccarthy
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Richard Mccarthy
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Mccarthy
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Arthur Mccarthy
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas Mccarthy
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lillian Mccarthy
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 — Santa-Clara-County, California
Open full size
1940 US Federal Census — Santa-Clara-County, California
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00338-00497)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Andrew T Sambrano | 43 | Lodger | Laborer | California |
| 42 | Antonio Sinisi | 39 | Head | Driver | California |
| 43 | Emma B Sinisi | 35 | Wife | — | Washington |
| 44 | Eleanor Sinisi | 15 | Daughter | — | California |
| 45 | Ellani Sinisi | 13 | Daughter | — | California |
| 46 | Elsie Sinisi | 12 | Daughter | — | California |
| 47 | Richard Sinisi | 3 | Son | — | California |
| 48 | Joseph Gannia | 56 | Head | Waiter | Italy |
| 49 | Rose D Gannia | 68 | Wife | — | Italy |
| 50 | Minnie Dris | 28 | Roomer | Seamstress | California |
| 51 | Fred Johnson | 47 | Roomer | — | Sweden |
| 52 | James Soto | 40 | Roomer | — | California |
| 53 | Elmer Dillon | 40 | Roomer | Welder | New York |
| 54 | Victoria Bermudez | 25 | Head | — | California |
| 55 | Charles Bermudez | 5 | Son | — | California |
| 56 | Merton L Moses | 63 | Head | Helper | Vermont |
| 57 | Minnie M Moses | 56 | Wife | — | Pennsylvania |
| 58 | Irwin Lind | 24 | Roomer | Machine Operator | North Dakota |
| 59 | Herbert T Barge | 47 | Head | Truck Driver | Canada-English |
| 60 | Edna W Barge | 45 | Wife | — | Canada-English |
| 61 | George Green | 61 | Brother-in-law | Printer | England |
| 62 | Laverne I Green | 34 | Niece | Clerk | California |
| 63 | Thomas F Murphy | 23 | Son-in-law | Truck Driver | California |
| 64 | Mavis S Murphy | 22 | Daughter | Clerk | California |
| 65 | William E Mccarthy | 41 | Head | — | California |
| 66 | Lillian M Mccarthy | 38 | Wife | — | Massachusetts |
| 67 | Thomas E Mccarthy | 19 | Son | — | California |
| 68 | Arthur J Mccarthy | 16 | Son | — | California |
| 69 | Lillian M Mccarthy | 13 | Daughter | — | California |
| 70 | Robert J Mccarthy THIS PERSON | 11 | Son | — | California |
| 71 | Richard R Mccarthy | 9 | Son | — | California |
| 72 | Betty L Mccarthy | 6 | Daughter | — | California |
| 73 | John P Mccarthy | 3 | Son | — | California |
| 74 | Charles D Van Riper | 38 | Head | Oiler | Colorado |
| 75 | Rena Van Riper | 35 | Wife | — | Idaho |
| 76 | Charles E Van Riper | 10 | Son | — | Oregon |
| 77 | Georgia Lee Van Riper | 9 | Daughter | — | Oregon |
| 78 | Jimmie Van Riper | 3 | Son | — | California |
| 79 | Joe Sanchez | 24 | Head | Laborer | Mexico |
| 80 | Teresa O Sanchez | 24 | Wife | — | New Mexico |
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)