RC
Robert Carr — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this Robert Carr across the 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed) — first a son (b.~1922), then head of a 12-person household.
Age 18
b. ~1922
Male
Son
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Carr |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Everett City |
| 1935 Residence (County) | Middlesex |
| Additional Details | |
| Occupation | New worker |
| Hours Worked | 65 |
| Income (1939) | 0 |
| Highest Grade | H 2 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | New Worker |
| Township / Ward | Everett City |
| Est. Birth Year | ~1922 |
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.
12 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| William Carr | Son | — | 17 | ~1923 |
| Francis Carr | Son | — | 20 | ~1920 |
| Donald Carr | Son | — | 5 | ~1935 |
| Sarah Carr | Daughter | — | 3 | ~1937 |
| Catherine Melanson | Other | — | 71 | ~1869 |
| John Carr | Son | — | 22 | ~1918 |
| Ellen Carr | Daughter | — | 10 | ~1930 |
| Emily Carr | Spouse | — | 42 | ~1898 |
| Richard Carr | Son | — | 12 | ~1928 |
| Francis Carr | Head | — | 43 | ~1897 |
| Robert Carr | Son | — | 18 | ~1922 |
| Edwin Carr | Son | — | 13 | ~1927 |
Census Appearances
1930
Middlesex, Massachusetts
Son, age 8
Middlesex, Massachusetts · implied b. ~1922 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Caro |
| Given Name | Robert O. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Canada-English |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Middlesex-County, Massachusetts
Son, age 18
Middlesex-County, Massachusetts · implied b. ~1922 — 12 household members
| Surname | Carr |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Everett City |
| 1935 Residence (County) | Middlesex |
| Occupation | New worker |
| Hours Worked | 65 |
| Income (1939) | 0 |
| Highest Grade | H 2 |
| 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 18 · b. ~1922 · Massachusetts
★ You are viewing this record
Sibling
John Carr
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ellen Carr
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Sarah Carr
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Carr
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Richard Carr
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Francis Carr
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Donald Carr
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edwin Carr
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 — Middlesex-County, Massachusetts
Open full size
1940 US Federal Census — Middlesex-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01604-00716)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Frederick Medugna | 8 | Son | — | Massachusetts |
| 2 | Marie Medugna | 5 | Daughter | — | Massachusetts |
| 3 | Diana Theresa Medugna | 3 | Daughter | — | Massachusetts |
| 4 | John Amoroso | 47 | Head | Compositor | Massachusetts |
| 5 | Mary O. Amoroso | 45 | Wife | — | Massachusetts |
| 6 | Rita Amoroso | 25 | Daughter | Stenographer | Massachusetts |
| 7 | Louis Amoroso | 19 | Son | — | Massachusetts |
| 8 | Edward Amoroso | 17 | Son | — | Massachusetts |
| 9 | Robert Amoroso | 13 | Son | — | Massachusetts |
| 10 | Helen Amoroso | 11 | Daughter | — | Massachusetts |
| 11 | Lawrence Amoroso | 5 | Son | — | Massachusetts |
| 12 | Carol Ann Amoroso | 3 | Daughter | — | Massachusetts |
| 13 | Joan Marie Amoroso | 3 | Daughter | — | Massachusetts |
| 14 | Morris Asen | 60 | Head | Tailor | Russia |
| 15 | Rebecca Asen | 60 | Wife | — | Russia |
| 16 | Clarence Asen | 31 | Son | Pianist | Massachusetts |
| 17 | Paul Asen | 23 | Son | — | Massachusetts |
| 18 | Sarah Bongers | 46 | Sister-in-law | Saleswoman | Russia |
| 19 | Ernest Bongers | 14 | Nephew | — | Massachusetts |
| 20 | Estelle Bongers | 16 | Niece | — | Massachusetts |
| 21 | Edmond Marotta | 25 | Head | Printer | Mass |
| 22 | Frances Marotta | 25 | Wife | — | Mass |
| 23 | Florence Colonna | 49 | Head | — | Italy |
| 24 | Mary Colonna | 54 | Wife | — | Italy |
| 25 | Rocco Colonna | 27 | Son | — | Italy |
| 26 | Camillo Colonna | 18 | Son | — | Massachusetts |
| 27 | Leo Colonna | 16 | Son | — | Massachusetts |
| 28 | Madeline Colonna | 14 | Daughter | — | Massachusetts |
| 29 | Francis J. Carr | 43 | Head | Metal Worker | Massachusetts |
| 30 | Emily V. Carr | 42 | Wife | — | Massachusetts |
| 31 | John F. Carr | 22 | Son | Salesman | Massachusetts |
| 32 | Francis J. Carr | 20 | Son | Laborer | Massachusetts |
| 33 | Robert Carr THIS PERSON | 18 | Son | New Worker | Massachusetts |
| 34 | William G. Carr | 17 | Son | — | Massachusetts |
| 35 | Edwin Carr | 13 | Son | — | Massachusetts |
| 36 | Richard Carr | 12 | Son | — | Massachusetts |
| 37 | Ellen V. Carr | 10 | Daughter | — | Massachusetts |
| 38 | Donald Carr | 5 | Son | — | Massachusetts |
| 39 | Sarah A. Carr | 3 | Daughter | — | Massachusetts |
| 40 | Catherine Melanson | 71 | Mother-in-law | — | Canada-English |
Related Census Records
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)