MP
Mary Powers — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this Mary Powers across the 1920, 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed) — first a spouse (b.~1897), then head of a 4-person household.
Age 43
b. ~1897
Female
Spouse
Born: Newfoundland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Powers |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | Newfoundland |
| 1935 Residence (City) | Burlington |
| Naturalization Status | Naturalized |
| Additional Details | |
| Highest Grade | H-4 |
| 1935 Residence | Massachusetts |
| Birth Country | Canada |
| Birthplace (normalized) | newfoundland |
| Township / Ward | Woburn City |
| Est. Birth Year | ~1897 |
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 Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Powers | Daughter | — | 15 | ~1925 |
| Theresa Powers | Daughter | — | 12 | ~1928 |
| William Powers | Head | — | 58 | ~1882 |
| Mary Powers | Spouse | — | 43 | ~1897 |
Census Appearances
1920
Suffolk, Massachusetts
Other, age 23
Suffolk, Massachusetts · implied b. ~1897 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Powers |
| Given Name | Mary |
| Relationship to Head | Servant |
| Sex | F |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Newfoundland |
| Year of Immigration | 1919 |
| Naturalization Status | Alien |
| Father's Birthplace | Newfoundland |
| Mother's Birthplace | Newfoundland |
| Occupation | Servant |
| Industry | Private family |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth Country | Canada |
| Birthplace (normalized) | newfoundland |
1930
Suffolk, Massachusetts
Other, age 32
Suffolk, Massachusetts · implied b. ~1898 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Power |
| Given Name | Mary H. |
| Relationship to Head | Wife H. |
| Sex | F |
| Color / Race | White |
| Age | 32 |
| Marital Status | Married |
| Birthplace | Newfoundland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1916 |
| Age at First Marriage | 22 |
| Father's Birthplace | Newfoundland |
| Mother's Birthplace | Newfoundland |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Birth Country | Canada |
| Birthplace (normalized) | newfoundland |
1940
Middlesex-County, Massachusetts
Spouse, age 43
Middlesex-County, Massachusetts · implied b. ~1897 — 4 household members
| Surname | Powers |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | Newfoundland |
| 1935 Residence (City) | Burlington |
| Naturalization Status | Naturalized |
| Highest Grade | H-4 |
| 1935 Residence | Massachusetts |
| Birth Country | Canada |
| Birthplace (normalized) | newfoundland |
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 Mary Powers across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Powers
Spouse · 1940 · age 43 · b. ~1897 · 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-t0627-01622-00394)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John Griffin | 50 | Head | Leather Worker | Ireland |
| 2 | Delia Griffin | 50 | Wife | — | Ireland |
| 3 | Mary Griffin | 14 | Daughter | — | Massachusetts |
| 4 | Thomas Griffin | 10 | Son | — | Massachusetts |
| 5 | William Powers | 58 | Head | Painter | Nova Scotia |
| 6 | Mary Powers THIS PERSON | 43 | Wife | — | Newfoundland |
| 7 | Mary Powers | 15 | Daughter | — | Massachusetts |
| 8 | Theresa Powers | 12 | Daughter | — | Massachusetts |
| 9 | Mildred Joyce | 31 | Head | — | Massachusetts |
| 10 | Grace Joyce | 30 | Sister | Laundress | Massachusetts |
| 11 | Bridget Flaherty | 62 | Lodger | — | Ireland |
| 12 | Martin Joyce | 66 | Head | Beamster | Ireland |
| 13 | Patrick Joyce | 38 | Son | Clerk | Ireland |
| 14 | Hannah Joyce | 27 | Daughter | — | Massachusetts |
| 15 | Bartholomew Mulkerin | 54 | Head | Laborer | Ireland |
| 16 | Hannah Mulkerin | 54 | Wife | — | Ireland |
| 17 | Roger Mulkerin | 25 | Son | Laborer | Massachusetts |
| 18 | Michael Mulkerin | 22 | Son | — | Massachusetts |
| 19 | Thomas Mulkerin | 18 | Son | — | Massachusetts |
| 20 | Barbara Mulkerin | 15 | Daughter | — | Massachusetts |
| 21 | Robert Mulkerin | 14 | Son | — | Massachusetts |
| 22 | Martin Mulkerin | 12 | Son | — | Massachusetts |
| 23 | James Mccauley | 29 | Head | Shipper | Massachusetts |
| 24 | Gertrude Mccauley | 28 | Wife | — | Massachusetts |
| 25 | Robert Mccauley | 5 | Son | — | Massachusetts |
| 26 | William Mccauley | 1 | Son | — | Massachusetts |
| 27 | Martin Duran | 47 | Head | Finisher | Ireland |
| 28 | Margaret Duran | 47 | Wife | — | Ireland |
| 29 | Guy Rotondo | 36 | Head | Laborer | Italy |
| 30 | Lena Rotondo | 27 | Wife | — | Massachusetts |
| 31 | Anna Rotondo | 15 | Daughter | — | Massachusetts |
| 32 | Albert Rotondo | 14 | Son | — | Massachusetts |
| 33 | Joseph Rotondo | 13 | Son | — | Massachusetts |
| 34 | Constance Rotondo | 7 | Daughter | — | Massachusetts |
| 35 | Guy Jr Rotondo | 6 | Son | — | Massachusetts |
| 36 | Eldine Rotondo | 5 | Daughter | — | Massachusetts |
| 37 | Josephine Rotondo | 4 | Daughter | — | Massachusetts |
| 38 | Anthony Rotondo | 2 | Son | — | Massachusetts |
| 39 | Susan Vivino | 53 | Head | — | Ireland |
| 40 | John Vivino | 23 | Son | Leather Worker | 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)