GC
George Carroll — 1940 US Census Record
Model Tree available1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this George Carroll across the 1920, 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed), with identified parents Catherine — first a head (b.~1911), then head of a 4-person household.
Age 29
b. ~1911
Male
Head
Born: Massachusetts
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Carroll |
| Given Name | George |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Malden City |
| 1935 Residence (County) | Middlesex |
| Additional Details | |
| Occupation | Undertaker |
| Industry | Own practice |
| Class of Worker | OA |
| Hours Worked | 40 |
| Income (1939) | 0 |
| Highest Grade | No H2 |
| 1935 Residence | Same house |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Undertaker |
| Township / Ward | Malden City |
| Est. Birth Year | ~1911 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to George | Age | Birth yr |
|---|---|---|---|---|
| George Carroll | Head | — | 29 | ~1911 |
| Dorothy Carroll | Spouse | — | 29 | ~1911 |
| Barbara Carroll | Daughter | — | 2 | ~1938 |
| Robert Carroll | Son | — | 1 | ~1939 |
Census Appearances
1920
Middlesex, Massachusetts
Other, age 8
Middlesex, Massachusetts · implied b. ~1912 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Carroll |
| Given Name | George |
| Relationship to Head | Nephew |
| Sex | M |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Middlesex, Massachusetts
Son, age 18
Middlesex, Massachusetts · implied b. ~1912 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Carroll |
| Given Name | George |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Middlesex-County, Massachusetts
Head, age 29
Middlesex-County, Massachusetts · implied b. ~1911 — 4 household members
| Surname | Carroll |
| Given Name | George |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Malden City |
| 1935 Residence (County) | Middlesex |
| Occupation | Undertaker |
| Industry | Own practice |
| Class of Worker | OA |
| Hours Worked | 40 |
| Income (1939) | 0 |
| Highest Grade | No H2 |
| 1935 Residence | Same house |
| 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 George Carroll across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Catherine Carroll (~0.92 confidence). The pedigree spans 1 generation with 1 identified ancestor.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Catherine Carroll
b. ~1890
Source mother
● Household
· direct · ~0.92
This person
Anchor record
George Carroll
Head · 1940 · age 29 · b. ~1911 · 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
40 people indexed on this census page (nara:1940:m-t0627-01608-00429)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Delia Mccarthy | 55 | Wife | — | Eire |
| 2 | Jerome F. Mccarthy | 25 | Son | Stock Taker | Massachusetts |
| 3 | John M. Mccarthy | 23 | Son | Grocery Clerk | Massachusetts |
| 4 | Margaret M. Mccarthy | 19 | Daughter | Stenographer | Massachusetts |
| 5 | Barbara R. Mccarthy | 16 | Daughter | — | Massachusetts |
| 6 | Mary A. Brennan | 47 | Head | Social Worker | Massachusetts |
| 7 | Catherine M. Brennan | 39 | Sister | Book-Keeper | Massachusetts |
| 8 | Anne E. Brennan | 37 | Sister | Book-Keeper | Massachusetts |
| 9 | Dominick Moffit | 62 | Uncle | — | Eire |
| 10 | Elizabeth Kearney | 75 | Head | — | Newfoundland |
| 11 | Sarah Kearney | 50 | Daughter | Waitress | Newfoundland |
| 12 | William J. Kearney | 48 | Son | Chief Engineer | Newfoundland |
| 13 | Josephine Kearney | 43 | Daughter | Book Keeper | Newfoundland |
| 14 | Veronica Kearney | 39 | Daughter | Undergraduate Nurse | Newfoundland |
| 15 | Alexander Mcdonald | 62 | Head | Painter | Canada English |
| 16 | Bella Mcdonald | 61 | Wife | — | Canada English |
| 17 | John F. Mccallum | 38 | Son-in-law | Police Officer | Eire |
| 18 | Catherine Mccallum | 36 | Daughter | — | Massachusetts |
| 19 | John F. Jr. Mccallum | 5 | Grandson | — | Massachusetts |
| 20 | Carl G. Berg | 65 | Head | Supt | Sweden |
| 21 | Ella A. Berg | 61 | Wife | — | Sweden |
| 22 | Marion C. Berg | 37 | Daughter | Service Clerk | Massachusetts |
| 23 | Zeta Trainor | 52 | Head | Saleslady | Vermont |
| 24 | James H. Trainor | 63 | Brother | Teamster | Vermont |
| 25 | Annie M. Trainor | 66 | Sister | — | Vermont |
| 26 | Elizabeth Bay | 44 | Lodger | Saleslady | Canada English |
| 27 | Harry C. Cooper | 46 | Head | Office Clerk | Massachusetts |
| 28 | Mary Cooper | 50 | Wife | — | Massachusetts |
| 29 | Ruth E. Cooper | 21 | Daughter | Typist | Massachusetts |
| 30 | Virginia M. Cooper | 15 | Daughter | — | Massachusetts |
| 31 | Frank H. Buckley | 54 | Brother-in-law | Mechanic | Massachusetts |
| 32 | James E. Kelly | 63 | Head | Car Operator | Eire |
| 33 | Mary Kelly | 63 | Wife | — | Eire |
| 34 | Evelyn E. Kelly | 27 | Daughter | Telephone Operator | Massachusetts |
| 35 | George Carroll THIS PERSON | 29 | Head | Undertaker | Massachusetts |
| 36 | Dorothy Carroll | 29 | Wife | — | Massachusetts |
| 37 | Barbara Carroll | 2 | Daughter | — | Massachusetts |
| 38 | Robert Carroll | 1 | Son | — | Massachusetts |
| 39 | Robert Carroll | 63 | Head | Produce Manager | Eire |
| 40 | Rhoda Carroll | 59 | Wife | — | Canada English |
Pedigree Summary
George
Gen 1 · 1 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)