MC
Margaret Carroll — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Suffolk-County, Massachusetts
Our Model Tree links this Margaret Carroll across the 1920, 1930 and 1940 US Censuses in Suffolk-County, Massachusetts (XGBoost, ~Confirmed) — first a head (b.~1874), then head of a 2-person household.
Age 66
b. ~1874
Female
Head
Born: Canada English
Widowed
1940 Census Record Details
| Census Year | 1940 |
| Location | Suffolk-County, Massachusetts |
| Surname | Carroll |
| Given Name | Margaret J. |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 66 |
| Marital Status | Widowed |
| Birthplace | Canada English |
| 1935 Residence (City) | BOSTON |
| 1935 Residence (County) | SUFFOLK |
| Naturalization Status | Naturalized |
| Additional Details | |
| Industry | 0 |
| Highest Grade | 8 |
| 1935 Residence | Same house |
| Birth Country | Canada |
| Birthplace (normalized) | canada english |
| Township / Ward | Boston |
| Est. Birth Year | ~1874 |
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.
2 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Margaret | Age | Birth yr |
|---|---|---|---|---|
| Margaret Carroll | Head | — | 66 | ~1874 |
| William Carroll | Son | — | 27 | ~1913 |
Census Appearances
1920
Middlesex, Massachusetts
Spouse, age 46
Middlesex, Massachusetts · implied b. ~1874 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Carroll |
| Given Name | Mabel |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | Canada English |
| Year of Immigration | 1880 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Canada English |
| Mother's Birthplace | Canada English |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth Country | Canada |
| Year of Naturalization | 1885 |
| Birthplace (normalized) | canada english |
1930
Middlesex, Massachusetts
Other, age 55
Middlesex, Massachusetts · implied b. ~1875 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Carroll |
| Given Name | Mable |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 55 |
| Marital Status | Married |
| Birthplace | Canada English |
| Naturalization Status | Naturalized |
| Year of Immigration | 1900 |
| Age at First Marriage | 20 |
| Father's Birthplace | Canada English |
| Mother's Birthplace | Canada English |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Birth Country | Canada |
| Birthplace (normalized) | canada english |
1940
Suffolk-County, Massachusetts
Head, age 66
Suffolk-County, Massachusetts · implied b. ~1874 — 2 household members
| Surname | Carroll |
| Given Name | Margaret J. |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 66 |
| Marital Status | Widowed |
| Birthplace | Canada English |
| 1935 Residence (City) | BOSTON |
| 1935 Residence (County) | SUFFOLK |
| Naturalization Status | Naturalized |
| Industry | 0 |
| Highest Grade | 8 |
| 1935 Residence | Same house |
| Birth Country | Canada |
| Birthplace (normalized) | canada english |
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 Margaret Carroll across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Margaret Carroll
Head · 1940 · age 66 · b. ~1874 · Massachusetts
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Suffolk-County, Massachusetts
Open full size
1940 US Federal Census — Suffolk-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01674-00604)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | James F. Eagan | 49 | Head | Starter | Irish Free State |
| 42 | Josephine B. Eagan | 46 | Wife | — | Massachusetts |
| 43 | Mary T. Eagan | 16 | Daughter | — | Massachusetts |
| 44 | Corrine P. Eagan | 15 | Daughter | — | Massachusetts |
| 45 | Mary C. Eagan | 23 | Niece | — | Conn |
| 46 | Pauline F. Barrett | 41 | Head | Clerk | Massachusetts |
| 47 | Arthur A. Barrett | 32 | Brother | Clerk | Massachusetts |
| 48 | Leo J. Barrett | 30 | Brother | Laborer | Massachusetts |
| 49 | Dorothy M. Barrett | 27 | Sister | Clerk | Massachusetts |
| 50 | Harry C. Lowe | 41 | Head | Machinist | Canada English |
| 51 | Alice B. Lowe | 58 | Sister | — | Canada English |
| 52 | Darrell W. Lowe | 38 | Brother | Clerk | Canada English |
| 53 | Margaret A. Trainer | 76 | Head | — | Massachusetts |
| 54 | Mary E. Trainer | 78 | Sister | — | Massachusetts |
| 55 | Annie G. Trainer | 70 | Sister | — | Massachusetts |
| 56 | Margaret J. Carroll THIS PERSON | 66 | Head | — | Canada English |
| 57 | William H. Carroll | 27 | Son | Teller | Massachusetts |
| 58 | Eleanor J. Sauman | 82 | Head | — | Maine |
| 59 | Ruth T. Killion | 41 | Daughter | — | Massachusetts |
| 60 | Fred D. Hough | 77 | Head | Printer | New Hampshire |
| 61 | Orena B. Hough | 64 | Wife | — | Maine |
| 62 | William O'Connell | 55 | Head | Blacksmith | Irish Free State |
| 63 | Julia M. O'Connell | 53 | Wife | — | Irish Free State |
| 64 | Mary T. O'Connell | 14 | Daughter | — | Massachusetts |
| 65 | William O'Connell | 13 | Son | — | Massachusetts |
| 66 | James O'Connell | 13 | Son | — | Massachusetts |
| 67 | John J. O'Connell | 9 | Son | — | Massachusetts |
| 68 | Michael Flaherty | 48 | Head | Laborer | Irish Free State |
| 69 | Hannah Flaherty | 49 | Wife | — | Irish Free State |
| 70 | Mary E. Flaherty | 18 | Daughter | — | Massachusetts |
| 71 | Thomas F. Flaherty | 11 | Son | — | Massachusetts |
| 72 | Mark V. Durkin | 36 | Head | Clerk | Massachusetts |
| 73 | Lorraine C. Durkin | 34 | Wife | — | Massachusetts |
| 74 | Rosemary P. Durkin | 0 | Daughter | — | Massachusetts |
| 75 | James M. Lewis | 45 | Head | Printer | Canada English |
| 76 | Jennie M. Lewis | 44 | Wife | — | Canada English |
| 77 | Muriel J. Lewis | 18 | Daughter | — | Canada English |
| 78 | John H. Hession | 68 | Head | — | Irish Free State |
| 79 | Annie M. Hession | 68 | Wife | — | Northern Ireland |
| 80 | John J. Hession | 28 | Son | Teacher | Massachusetts |
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)