JC
John Carr — 1920 US Census Record
Model Tree available1920 United States Federal Census · Middlesex, Massachusetts
Our Model Tree links this John Carr across the 1900, 1910 and 1920 US Censuses in Middlesex, Massachusetts (XGBoost, ~Confirmed), with identified parents Thomas & Annie — first a son (b.~1898), then head of a 10-person household.
Age 22
b. ~1898
Male
Son
Born: Massachusetts
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | Middlesex, Massachusetts |
| Surname | Carr |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Additional Details | |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Irish |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | Hopkinton Town |
| Est. Birth Year | ~1898 |
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 1920 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Mary Carr | Daughter | — | 17 | ~1903 |
| Catherine Carr | Daughter | — | 24 | ~1896 |
| Edward Carr | Head | — | 51 | ~1869 |
| Patrick Carroll | Other | — | 52 | ~1868 |
| William Carroll | Other | — | 51 | ~1869 |
| Charles Carr | Son | — | 20 | ~1900 |
| George Carr | Son | — | 13 | ~1907 |
| William Carr | Son | — | 28 | ~1892 |
| John Carr | Son | — | 22 | ~1898 |
| Catherine Carr | Spouse | — | 53 | ~1867 |
Census Appearances
1900
Middlesex, Massachusetts
Son, age 2
Middlesex, Massachusetts · implied b. ~1898 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Carr |
| Given Name | John M |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Birth Month | Sep |
| Birth Year | 1898 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1910
Middlesex, Massachusetts
Son, age 12
Middlesex, Massachusetts · implied b. ~1898 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Carr |
| Given Name | John M |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1920
Middlesex, Massachusetts
Son, age 22
Middlesex, Massachusetts · implied b. ~1898 — 10 household members
| Surname | Carr |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Irish |
| 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 John Carr across 3 US Census years (1900, 1910 and 1920) in Middlesex, Massachusetts, using XGBoost record linkage. Identified parents: father Thomas Carr (~0.92 confidence) and mother Annie Carr (~0.92 confidence) and mother Catherine Carr (~0.92 confidence) and father Edward Carr (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Thomas Carr
b. ~1864
Source father
● Household
· direct · ~0.92
Mother
Annie Carr
b. ~1865
Source mother
● Household
· direct · ~0.92
Mother
Catherine Carr
b. ~1867
Source mother
● Household
· direct · ~0.92
Father
Edward Carr
b. ~1869
Source father
● Household
· direct · ~0.92
This person
Anchor record
John Carr
Son · 1920 · age 22 · b. ~1898 · Massachusetts
★ You are viewing this record
Sibling
Mary Carr
Sibling · 1920 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Carr
Sibling · 1920 · age 28
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
George Carr
Sibling · 1920 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charles Carr
Sibling · 1920 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Catherine Carr
Sibling · 1920 · age 24
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
1920 US Federal Census — Middlesex, Massachusetts
Open full size
1920 US Federal Census — Middlesex, Massachusetts
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu710unit:0327)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Mary Horner | 60 | Head | Music Teacher | Massachusetts |
| 2 | Elizabeth Horner | 48 | Sister | Music Teacher | Massachusetts |
| 3 | Stephen Lally | 48 | Head | Laborer | Massachusetts |
| 4 | Harry Wells | 40 | Head | Electrotyper | Massachusetts |
| 5 | Mildred Wells | 23 | Wife | — | Maine |
| 6 | Kathleen Wells | 5 | Daughter | — | Massachusetts |
| 7 | Edward Carr | 51 | Head | Lawyer | Ireland |
| 8 | Catherine Carr | 53 | Wife | — | Massachusetts |
| 9 | William R Carr | 28 | Son | Restaurateur | Massachusetts |
| 10 | Catherine Carr | 24 | Daughter | Yard Decorator | Massachusetts |
| 11 | John Carr THIS PERSON | 22 | Son | — | Massachusetts |
| 12 | Charles F Carr | 20 | Son | Electrician | Massachusetts |
| 13 | Mary Carr | 17 | Daughter | — | Massachusetts |
| 14 | George Carr | 13 | Son | — | Massachusetts |
| 15 | Patrick Carroll | 52 | Brother-in-law | — | Massachusetts |
| 16 | William H Carroll | 51 | Brother-in-law | Painter | Massachusetts |
| 17 | John H Kennedy | 54 | Head | Shoemaker | Massachusetts |
| 18 | Margaret Kennedy | 52 | Wife | — | Massachusetts |
| 19 | Frank Kennedy | 24 | Son | Mail Clerk | Massachusetts |
| 20 | Donald Kennedy | 22 | Son | Mail Clerk | Massachusetts |
| 21 | Eva Kennedy | 21 | Daughter | School Teacher | Massachusetts |
| 22 | Lester Kennedy | 17 | Son | — | Massachusetts |
| 23 | Margaret Leahy | 44 | Head | — | Massachusetts |
| 24 | Mary Mcnamara | 40 | Sister | — | Massachusetts |
| 25 | Catherine Mccarthy | 65 | Head | — | Massachusetts |
| 26 | Daniel Mccarthy | 25 | Son | Conductor | Massachusetts |
| 27 | Catherine Mcmanus | 57 | Head | — | Massachusetts |
| 28 | Chester Mcmanus | 24 | Son | Printer | Massachusetts |
| 29 | Joseph Mcmanus | 18 | Son | Clerk | Massachusetts |
| 30 | William F Blake | 38 | Head | Foreman | Massachusetts |
| 31 | Margaret A Blake | 40 | Wife | — | Massachusetts |
| 32 | Arthur H Blake | 11 | Son | — | Massachusetts |
| 33 | Virginia Kenny | 42 | Boarder | — | Massachusetts |
| 34 | Martin P Donnelly | 47 | Head | Shoemaker | Massachusetts |
| 35 | Mary V Donnelly | 43 | Wife | — | Massachusetts |
| 36 | Catherine Donnelly | 21 | Daughter | Clerk | Massachusetts |
| 37 | Francis Donnelly | 19 | Son | Laborer | Massachusetts |
| 38 | Joseph Donnelly | 16 | Son | — | Massachusetts |
| 39 | Walter Donnelly | 14 | Son | — | Massachusetts |
| 40 | Paul Donnelly | 11 | Son | — | Massachusetts |
| 41 | William Donnelly | 0 | Son | — | Massachusetts |
| 42 | Rita Donnelly | 7 | Daughter | — | Massachusetts |
| 43 | Mary Bates | 47 | Head | Laborer | Ireland |
| 44 | Millard Bates | 17 | Son | Laborer | Massachusetts |
| 45 | Marguerite Bates | 17 | Daughter | Laborer | Massachusetts |
| 46 | Gilbert Bates | 14 | Son | — | Massachusetts |
| 47 | Marjorie Bates | 10 | Daughter | — | Massachusetts |
| 48 | Dorothy Bates | 6 | Daughter | — | Massachusetts |
| 49 | P Joseph Mullen | 41 | Head | Supt | Massachusetts |
| 50 | Mary A Mullen | 41 | Wife | — | Massachusetts |
Pedigree Summary
John + 5 siblings
Gen 1 · 4 parents
~0.92
Max depth 4 (1900–1950 window)
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1920 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)