MC
Mary Connolly — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this Mary Connolly across the 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed) — first a spouse (b.~1885), then head of a 9-person household.
Age 55
b. ~1885
Female
Spouse
Born: Canada-English
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Connolly |
| Given Name | Mary B. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 55 |
| Marital Status | Married |
| Birthplace | Canada-English |
| 1935 Residence (City) | City of Melrose |
| 1935 Residence (County) | Middlesex |
| Naturalization Status | Naturalized |
| Additional Details | |
| Highest Grade | No 8 |
| 1935 Residence | Same house |
| Birthplace (normalized) | canada-english |
| Township / Ward | City Of Melrose |
| Est. Birth Year | ~1885 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Bernard Connolly | Son | — | 23 | ~1917 |
| Edward Connolly | Son | — | 24 | ~1916 |
| Mary Connolly | Daughter | — | 18 | ~1922 |
| James Connolly | Son | — | 14 | ~1926 |
| Loretta Connolly | Daughter | — | 15 | ~1925 |
| Michael Connolly | Head | — | 57 | ~1883 |
| John Connolly | Son | — | 20 | ~1920 |
| Mary Connolly | Spouse | — | 55 | ~1885 |
| Mary Connolly | Daughter | — | 26 | ~1914 |
Census Appearances
1930
Middlesex, Massachusetts
Other, age 44
Middlesex, Massachusetts · implied b. ~1886 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Connelly |
| Given Name | Mary B |
| Relationship to Head | wife-H |
| Sex | F |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Canada-English |
| Naturalization Status | Naturalized |
| Year of Immigration | 1906 |
| Age at First Marriage | 29 |
| Father's Birthplace | Canada-English |
| Mother's Birthplace | Canada-English |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Birthplace (normalized) | canada-english |
1940
Middlesex-County, Massachusetts
Spouse, age 55
Middlesex-County, Massachusetts · implied b. ~1885 — 9 household members
| Surname | Connolly |
| Given Name | Mary B. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 55 |
| Marital Status | Married |
| Birthplace | Canada-English |
| 1935 Residence (City) | City of Melrose |
| 1935 Residence (County) | Middlesex |
| Naturalization Status | Naturalized |
| Highest Grade | No 8 |
| 1935 Residence | Same house |
| 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 Mary Connolly across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Connolly
Spouse · 1940 · age 55 · b. ~1885 · 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 — 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-t0627-01613-00647)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Abbie F. Wilder | 22 | — | — | Mass |
| 2 | Robert J. Lusk | 47 | Head | Bank Officer | Mass |
| 3 | Ellen M. Lusk | 47 | Wife | — | Mass |
| 4 | Evelyn W. Lusk | 21 | Daughter | — | Mass |
| 5 | Melton A. Chase | 59 | Head | Clerk | Maine |
| 6 | Edna M. Chase | 58 | Wife | — | Mass |
| 7 | John R. Chase | 26 | Son | Salesman | Mass |
| 8 | Robert C. Chase | 22 | Son | Decorator | Mass |
| 9 | Martha A. Chase | 15 | Daughter | — | Mass |
| 10 | Ruth L. Chase | 33 | Daughter | Waitress | Mass |
| 11 | Michael J. Connolly | 57 | Head | Contractor | Canada-English |
| 12 | Mary B. Connolly THIS PERSON | 55 | Wife | — | Canada-English |
| 13 | Mary R. Connolly | 26 | Daughter | Typist | Mass |
| 14 | Edward J. Connolly | 24 | Son | Shipper | Mass |
| 15 | Bernard J. Connolly | 23 | Son | — | Mass |
| 16 | John J. Connolly | 20 | Son | — | Mass |
| 17 | Mary B. Connolly | 18 | Daughter | — | Mass |
| 18 | Loretta J. Connolly | 15 | Daughter | — | Mass |
| 19 | James M. Connolly | 14 | Son | — | Mass |
| 20 | Joseph E. Lodge | 55 | Head | Welder | England |
| 21 | Gertrude Lodge | 53 | Wife | — | England |
| 22 | Abbie F. Wilder | 69 | Head | Bookkeeper | Mass |
| 23 | Earle H. Boyce | 50 | Head | Supervising Estimator | Mass |
| 24 | Myrtle M. Boyce | 50 | Wife | — | Mass |
| 25 | Natalie M. Boyce | 24 | Daughter | Clerk | Mass |
| 26 | David R. Boyce | 19 | Son | Clerk | Mass |
| 27 | Mary F. Dawley | 41 | Head | — | Canada-English |
| 28 | Frank J. Dawley | 17 | Son | — | Mass |
| 29 | Joseph Dawley | 16 | Son | — | Mass |
| 30 | Walter Dawley | 15 | Son | — | Mass |
| 31 | Mary Dawley | 12 | Daughter | — | Mass |
| 32 | John Dawley | 10 | Son | — | Mass |
| 33 | Ruth Dawley | 8 | Daughter | — | Mass |
| 34 | Jane Dawley | 6 | Daughter | — | Mass |
| 35 | Robert Dawley | 3 | Son | — | Mass |
| 36 | William E. Allen | 45 | Head | Salesman | Maine |
| 37 | Mildred S. Allen | 41 | Wife | Bookkeeper | New Hampshire |
| 38 | Virginia R. Allen | 19 | Daughter | Waitress | Mass |
| 39 | Owen L. Walsh | 34 | Head | Color Chemist | Mass |
| 40 | Alta L. Walsh | 60 | Mother | — | Mass |
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)