TC
Thomas Carroll — 1940 US Census Record
Model Tree available1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this Thomas Carroll across the 1920, 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed), with identified parents Mary & William — first a head (b.~1896), then head of a 3-person household.
Age 44
b. ~1896
Male
Head
Born: Massachusetts
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Carroll |
| Given Name | Thomas L |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Malden city |
| 1935 Residence (County) | Middlesex |
| Additional Details | |
| Occupation | Upholsterer |
| Industry | Automobile Manufacturing |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1764 |
| Highest Grade | No 8 |
| 1935 Residence | Same Place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Upholsterer |
| Township / Ward | Malden City |
| Est. Birth Year | ~1896 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Thomas | Age | Birth yr |
|---|---|---|---|---|
| Thomas Carroll | Head | — | 44 | ~1896 |
| Leo Carroll | Son | — | 18 | ~1922 |
| Mary Carroll | Spouse | — | 41 | ~1899 |
Census Appearances
1920
Middlesex, Massachusetts
Son, age 24
Middlesex, Massachusetts · implied b. ~1896 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Carroll |
| Given Name | Thomas J |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Lugger |
| Industry | Leather |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Middlesex, Massachusetts
Other, age 33
Middlesex, Massachusetts · implied b. ~1897 — 27 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Carroll |
| Given Name | Thomas J |
| Relationship to Head | O |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| Age at First Marriage | 18 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Stitcher |
| Industry | Rubber Works |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | 2500 |
| Home Value / Rent | R |
| Radio Set | No |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Middlesex-County, Massachusetts
Head, age 44
Middlesex-County, Massachusetts · implied b. ~1896 — 3 household members
| Surname | Carroll |
| Given Name | Thomas L |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Malden city |
| 1935 Residence (County) | Middlesex |
| Occupation | Upholsterer |
| Industry | Automobile Manufacturing |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1764 |
| 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 Thomas Carroll across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Mary Carroll (~0.92 confidence) and father William Carroll (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Mary Carroll
b. ~1867
Source mother
● Household
· direct · ~0.92
Father
William Carroll
b. ~1868
Source father
● Household
· direct · ~0.92
This person
Anchor record
Thomas Carroll
Head · 1940 · age 44 · b. ~1896 · Massachusetts
★ You are viewing this record
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
36 people indexed on this census page (nara:1940:m-t0627-01608-00741)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Rose E Sampson | 13 | Daughter | — | Massachusetts |
| 42 | Ruth E Sampson | 12 | Daughter | — | Massachusetts |
| 43 | Roland F Sampson | 10 | Son | — | Massachusetts |
| 44 | Russell C Sampson | 8 | Son | — | Massachusetts |
| 45 | Ronette M Sampson | 7 | Daughter | — | Massachusetts |
| 46 | Roger A Sampson | 5 | Son | — | Massachusetts |
| 47 | Ulysses B Amirault | 36 | Brother-in-law | Fisherman | Nova Scotia |
| 48 | Henry Palumbo | 63 | Head | Laborer | Italy |
| 49 | Florence Palumbo | 58 | Wife | — | Italy |
| 50 | Vito J Palumbo | 26 | Son | Assistant Foreman | Italy |
| 51 | Roland P Palumbo | 18 | Son | New Worker | Massachusetts |
| 52 | Jeanette T Palumbo | 17 | Daughter | — | Massachusetts |
| 53 | Maria C Spadafora | 52 | Head | Store Keeper | Italy |
| 54 | Florence M Spadafora | 22 | Daughter | Salesgirl | Massachusetts |
| 55 | Alphonse R Spadafora | 21 | Son | — | Massachusetts |
| 56 | John J Spadafora | 15 | Son | New Worker | Massachusetts |
| 57 | William Spadafora | 28 | Head | Salesman | Massachusetts |
| 58 | Esther M Spadafora | 29 | Wife | — | Canada-French |
| 59 | Rosemarie Spadafora | 4 | Daughter | — | Massachusetts |
| 60 | Joan E Spadafora | 2 | Daughter | — | Massachusetts |
| 61 | John W Spadafora | 0 | Son | — | Massachusetts |
| 62 | Anthony Brescia | 39 | Head | Meter Tester | Massachusetts |
| 63 | Ann C Brescia | 33 | Wife | — | Nova Scotia |
| 64 | John A Brescia | 11 | Son | — | Massachusetts |
| 65 | Barbara M Brescia | 8 | Daughter | — | Massachusetts |
| 66 | Marie Brescia | 76 | Mother | — | Italy |
| 70 | Michael H Bozzuto | 31 | Head | Tailor | Massachusetts |
| 71 | Clementina Bozzuto | 25 | Wife | — | Massachusetts |
| 72 | Anthony M Bozzuto | 7 | Son | — | Massachusetts |
| 73 | Marie Bozzuto | 6 | Daughter | — | Massachusetts |
| 75 | Mary E Reardon | 59 | Head | Seamstress | Massachusetts |
| 76 | Timothy P Sullivan | 67 | Head | — | Eire |
| 77 | Lillian C Sullivan | 45 | Daughter | Seamstress | Massachusetts |
| 78 | Thomas L Carroll THIS PERSON | 44 | Head | Upholsterer | Massachusetts |
| 79 | Mary R Carroll | 41 | Wife | — | Massachusetts |
| 80 | Leo J Carroll | 18 | Son | Usher | Massachusetts |
Pedigree Summary
Thomas
Gen 1 · 2 parents
~0.92
Max depth 4 (1900–1950 window)
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)