RC
Robert Carr — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Suffolk-County, Massachusetts
Our Model Tree links this Robert Carr across the 1930 and 1940 US Censuses in Suffolk-County, Massachusetts (XGBoost, ~Confirmed) — first a son (b.~1925), then head of a 10-person household.
Age 15
b. ~1925
Male
Son
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Suffolk-County, Massachusetts |
| Surname | Carr |
| Given Name | Robert B. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston |
| 1935 Residence (County) | Suffolk |
| Additional Details | |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | Boston |
| Est. Birth Year | ~1925 |
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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| John Carr | Son | — | 18 | ~1922 |
| Walter Carr | Son | — | 13 | ~1927 |
| Patrick Carr | Head | — | 47 | ~1893 |
| Robert Carr | Son | — | 15 | ~1925 |
| Margaret Carr | Spouse | — | 45 | ~1895 |
| Edward Carr | Son | — | 22 | ~1918 |
| Eleanor Carr | Daughter | — | 6 | ~1934 |
| Joseph Carr | Son | — | 21 | ~1919 |
| Marie Carr | Daughter | — | 9 | ~1931 |
| Colette Carr | Daughter | — | 1 | ~1939 |
Census Appearances
1930
Suffolk, Massachusetts
Son, age 5
Suffolk, Massachusetts · implied b. ~1925 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Carr |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Connecticut |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Suffolk-County, Massachusetts
Son, age 15
Suffolk-County, Massachusetts · implied b. ~1925 — 10 household members
| Surname | Carr |
| Given Name | Robert B. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston |
| 1935 Residence (County) | Suffolk |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
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 Carr across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Robert Carr
Son · 1940 · age 15 · b. ~1925 · Massachusetts
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Sibling
Edward Carr
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Marie Carr
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Walter Carr
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Carr
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Colette Carr
Sibling · 1940 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Carr
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Eleanor Carr
Sibling · 1940 · age 6
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 — Suffolk-County, Massachusetts
Open full size
1940 US Federal Census — Suffolk-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01675-00139)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Anna Roy | 84 | Mother-in-law | — | England |
| 42 | Timothy J. Rush | 56 | Head | Pull-Man Advertising | Massachusetts |
| 43 | Mary Rush | 54 | Wife | — | Massachusetts |
| 44 | John Rush | 29 | Son | Asst-Operator Moving Picture | Massachusetts |
| 45 | Robert Rush | 25 | Son | Laborer W.P.A. Subway Project | Massachusetts |
| 46 | Lawrence Rush | 22 | Son | Laundry Worker Laundry Plant | Massachusetts |
| 47 | Paul Rush | 20 | Son | Laundry Worker Laundry Plant | Massachusetts |
| 48 | Madeline Rush | 15 | Daughter | — | Massachusetts |
| 49 | Patrick J. Carr | 47 | Head | Fireman Boston Fire Dept | Massachusetts |
| 50 | Margaret Carr | 45 | Wife | — | Massachusetts |
| 51 | Edward Carr | 22 | Son | Photographer Daily Newspaper | Massachusetts |
| 52 | Joseph P. Carr | 21 | Son | Usher Theatre | Massachusetts |
| 53 | John F. Carr | 18 | Son | — | Massachusetts |
| 54 | Robert B. Carr THIS PERSON | 15 | Son | — | Massachusetts |
| 55 | Walter V. Carr | 13 | Son | — | Massachusetts |
| 56 | Marie V. Carr | 9 | Daughter | — | Massachusetts |
| 57 | Eleanor M. Carr | 6 | Daughter | — | Massachusetts |
| 58 | Colette F. Carr | 1 | Daughter | — | Massachusetts |
| 59 | Eugene Rev Murphy | 72 | Head | — | Massachusetts |
| 60 | Margaret Murphy | 68 | Wife | — | Scotland |
| 61 | Eugene L. Murphy | 37 | Son | Plumber Prop Plumbing | Massachusetts |
| 62 | Warren C. Murphy | 34 | Son | Painter Own Business Contractor | Massachusetts |
| 63 | Alexander R. Murphy | 31 | Son | Metal-Worker Shipyard | Massachusetts |
| 64 | Norman D. Murphy | 27 | Son | New-Worker | Massachusetts |
| 65 | Jessie Murphy | 26 | Daughter | Operator Telephone Co | Massachusetts |
| 66 | James J. Conary | 54 | Head | Fireman Boston Fire Dept | Massachusetts |
| 67 | Margaret A. Conary | 46 | Wife | — | Massachusetts |
| 68 | James J. Conary | 21 | Son | Attendant Gas-Station | Massachusetts |
| 69 | William Conary | 19 | Son | Drug Clerk Retail Drug-Store | Massachusetts |
| 70 | Marie Conary | 15 | Daughter | — | Massachusetts |
| 71 | Margaret Conary | 13 | Daughter | — | Massachusetts |
| 72 | Edward H. Kilday | 62 | Head | Fireman Boston Fire Dept | Massachusetts |
| 73 | Anna T. Kilday | 57 | Wife | — | Massachusetts |
| 74 | Edward H. Jr. Kilday | 27 | Son | New-Worker | Massachusetts |
| 75 | Margaret A. Canavan | 49 | Head | — | Massachusetts |
| 76 | Mildred Canavan | 23 | Daughter | 48 | Massachusetts |
| 77 | Mary Canavan | 21 | Daughter | 40 | Massachusetts |
| 78 | Joseph Canavan | 20 | Son | 40 | Massachusetts |
| 79 | Helen Canavan | 18 | Daughter | — | Massachusetts |
| 80 | Robert Canavan | 16 | Son | — | Massachusetts |
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)