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Charles Carroll — 1940 US Census Record
Model Tree available1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this Charles Carroll across the 1920, 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed), with identified parents Ellen & Edward — first a head (b.~1898), then head of a 4-person household.
Age 42
b. ~1898
Male
Head
Born: Massachusetts
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Carroll |
| Given Name | Charles F. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 42 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| 1935 Residence (City) | City of Lowell |
| 1935 Residence (County) | Middlesex |
| Additional Details | |
| Occupation | Proprietor Salesman |
| Industry | Automobile Business |
| Class of Worker | OA |
| Hours Worked | 40 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same House |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Proprietor Salesman |
| Township / Ward | City Of Lowell |
| 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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Charles | Age | Birth yr |
|---|---|---|---|---|
| Charles Carroll | Head | — | 42 | ~1898 |
| Eileen Carroll | Daughter | — | 18 | ~1922 |
| Irene Carroll | Spouse | — | 40 | ~1900 |
| Charles Carroll | Son | — | 17 | ~1923 |
Census Appearances
1920
Middlesex, Massachusetts
Son, age 21
Middlesex, Massachusetts · implied b. ~1899 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Carroll |
| Given Name | Charles H |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Occupation | Laborer |
| Industry | Leather Factory |
| 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
Son, age 31
Middlesex, Massachusetts · implied b. ~1899 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Carroll |
| Given Name | Charles E |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | New Hampshire |
| Occupation | Welder |
| Industry | Cotton Co |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Middlesex-County, Massachusetts
Head, age 42
Middlesex-County, Massachusetts · implied b. ~1898 — 4 household members
| Surname | Carroll |
| Given Name | Charles F. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 42 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| 1935 Residence (City) | City of Lowell |
| 1935 Residence (County) | Middlesex |
| Occupation | Proprietor Salesman |
| Industry | Automobile Business |
| Class of Worker | OA |
| Hours Worked | 40 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 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 Charles Carroll across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Ellen Carroll (~0.92 confidence) and father Edward Carroll (~0.92 confidence) and father Charles Carroll (~0.60 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.81
Mother
Ellen Carroll
b. ~1868
Source mother
● Household
· direct · ~0.92
Father
Edward Carroll
b. ~1869
Source father
● Household
· direct · ~0.92
Father
Charles Carroll
b. ~1893
Source father
● Household
· direct · ~0.6
This person
Anchor record
Charles Carroll
Head · 1940 · age 42 · b. ~1898 · 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
39 people indexed on this census page (nara:1940:m-t0627-01691-00771)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Saul B. Bass | 21 | Son | New Worker | Massachusetts |
| 42 | Bette Bass | 19 | Daughter | — | Massachusetts |
| 44 | Melton D. Leblanc | 58 | Head | Carpenter | Canada French |
| 45 | Mary M. Leblanc | 63 | Wife | — | Canada French |
| 46 | Grace Gardner | 58 | Head | — | Massachusetts |
| 47 | Mattie A. Caldwell | 89 | Head | — | New York |
| 48 | Frederick W. Noyes | 77 | Head | — | Massachusetts |
| 49 | Frances J. Noyes | 72 | Wife | — | New York |
| 50 | Ida M. Roger | 71 | Head | — | New Hampshire |
| 51 | Harold H. Roger | 43 | Son | Weaver | Massachusetts |
| 52 | Leo W. Mcmullen | 39 | Head | Gill Box Tender | Massachusetts |
| 53 | Marion Mcmullen | 39 | Wife | — | Massachusetts |
| 54 | Virginia Mcmullen | 15 | Daughter | — | Massachusetts |
| 55 | Leo Mcmullen | 8 | Son | — | Massachusetts |
| 56 | David Mcmullen | 2 | Son | — | Massachusetts |
| 57 | Frederick Kennedy | 44 | Head | Stock Clerk | Massachusetts |
| 58 | Helen Kennedy | 38 | Wife | — | Massachusetts |
| 59 | Frederick Kennedy | 3 | Son | — | Massachusetts |
| 60 | Mary Teague | 72 | Mother in Law | — | Ireland |
| 61 | Theresa E. Tighe | 68 | Head | — | Canada French |
| 62 | Madeline Tighe | 36 | Daughter | Cashier | Massachusetts |
| 63 | Alice Tighe | 35 | Daughter | Warper | Massachusetts |
| 64 | Albert Tighe | 30 | Son | Gill Box Tender | Massachusetts |
| 65 | Patrick F. Mcnamara | 52 | Head | Scourer | Eire |
| 66 | Delia Mcnamara | 53 | Wife | — | Eire |
| 67 | Richard L. Burns | 52 | Head | Carpenter Foreman | Massachusetts |
| 68 | Mary M. Burns | 49 | Wife | — | Massachusetts |
| 69 | Mary C. Burns | 18 | Daughter | — | Massachusetts |
| 70 | Mary M. Bagley | 53 | Head | Clerk | Massachusetts |
| 71 | Anna S. Bagley | 50 | Sister | — | Massachusetts |
| 72 | Esther Bagley | 46 | Sister | Servant | Massachusetts |
| 73 | Margaret C. Mcnally | 73 | Head | — | Massachusetts |
| 74 | Charles Hatem | 38 | Son in Law | Cleaner-Dyer | Massachusetts |
| 75 | Mildred J. Hatem | 38 | Daughter | Stenographer | Massachusetts |
| 76 | Elizabeth Lake | 78 | Lodger | — | Massachusetts |
| 77 | Charles F. Carroll THIS PERSON | 42 | Head | Proprietor Salesman | Massachusetts |
| 78 | Irene L. Carroll | 40 | Wife | — | Massachusetts |
| 79 | Eileen B. Carroll | 18 | Daughter | Stenographer | Massachusetts |
| 80 | Charles F. Carroll | 17 | Son | — | Massachusetts |
Pedigree Summary
Charles
Gen 1 · 3 parents
~0.81
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)