MC
Mary Connolly — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Suffolk-County, Massachusetts
Our Model Tree links this Mary Connolly across the 1920, 1930 and 1940 US Censuses in Suffolk-County, Massachusetts (XGBoost, ~Confirmed) — first a spouse (b.~1896), then head of a 8-person household.
Age 44
b. ~1896
Female
Spouse
Born: Ireland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Suffolk-County, Massachusetts |
| Surname | Connolly |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Ireland |
| 1935 Residence (City) | Boston City |
| 1935 Residence (County) | Suffolk |
| Naturalization Status | Naturalized |
| Additional Details | |
| Highest Grade | H-1 |
| 1935 Residence | Same place |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
| Township / Ward | Boston City |
| Est. Birth Year | ~1896 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Connolly | Spouse | — | 44 | ~1896 |
| Eleanor Connolly | Daughter | — | 16 | ~1924 |
| Coleman Connolly | Head | — | 47 | ~1893 |
| Josephine Connolly | Daughter | — | 12 | ~1928 |
| Teresa Connolly | Daughter | — | 15 | ~1925 |
| Anna Connolly | Daughter | — | 20 | ~1920 |
| Margaret Connolly | Daughter | — | 18 | ~1922 |
| John Connolly | Son | — | 11 | ~1929 |
Census Appearances
1920
Suffolk, Massachusetts
Spouse, age 27
Suffolk, Massachusetts · implied b. ~1893 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Connolly |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 27 |
| Marital Status | Married |
| Birthplace | Ireland |
| Year of Immigration | 1913 |
| Naturalization Status | First papers filed |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1930
Suffolk, Massachusetts
Spouse, age 35
Suffolk, Massachusetts · implied b. ~1895 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Connolly |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Ireland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1914 |
| Age at First Marriage | 21 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Home |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1940
Suffolk-County, Massachusetts
Spouse, age 44
Suffolk-County, Massachusetts · implied b. ~1896 — 8 household members
| Surname | Connolly |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Ireland |
| 1935 Residence (City) | Boston City |
| 1935 Residence (County) | Suffolk |
| Naturalization Status | Naturalized |
| Highest Grade | H-1 |
| 1935 Residence | Same place |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
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 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Connolly
Spouse · 1940 · age 44 · b. ~1896 · 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-t0627-01674-00347)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | James Jr. Scully | 65 | Head | Eaterer | Ireland |
| 2 | Catherine J. Scully | 60 | Wife | — | Ireland |
| 3 | James J. Scully | 28 | Son | Salesman | Mass |
| 4 | Helen Scully | 31 | Daughter | Machine Instructor | Mass |
| 5 | George Mannington | 76 | Head | — | Ireland |
| 6 | Sara Mannington | 76 | Wife | — | Ireland |
| 7 | Ethylle J. Mannington | 45 | Daughter | — | Mass |
| 8 | John Allen | 65 | Head | Retail Groc. Manager | Nova Scotia |
| 9 | Lydia Allen | 61 | Wife | — | Maine |
| 10 | Lynelle Allen | 24 | Son | Clerk | Mass |
| 11 | Edmund L. Reddy | 50 | Head | Plumber | Mass |
| 12 | Edmund J. Reddy | 21 | Son | — | Mass |
| 13 | Paul G. Reddy | 20 | Son | Clerk | Mass |
| 14 | Mary C. Reddy | 14 | Daughter | — | Mass |
| 15 | John L. Reddy | 13 | Son | — | Mass |
| 16 | Mary L. Callahan | 43 | Sister-in-law | Telephone Operator | Mass |
| 17 | Margaret Callahan | 40 | Sister-in-law | Telephone Operator | Mass |
| 18 | George H. Cochrane | 31 | Head | Customs Guard | Mass |
| 19 | Catherine A. Cochrane | 31 | Wife | — | Poland |
| 20 | Patricia A. Cochrane | 7 | Daughter | — | Mass |
| 21 | Nancy Cochrane | 4 | Daughter | — | Mass |
| 22 | Sophie Dudek | 29 | Sister | Waitress | Mass |
| 23 | Maria Dudek | 22 | Sister | Waitress | Mass |
| 24 | George A. Cully | 41 | Head | Foreman | Mass |
| 25 | Gertrude G. Cully | 40 | Wife | — | Mass |
| 26 | George A. Jr. Cully | 16 | Son | — | Mass |
| 27 | Jeanne Cully | 7 | Daughter | — | Mass |
| 28 | Coleman Connolly | 47 | Head | Laborer | Ireland |
| 29 | Mary Connolly THIS PERSON | 44 | Wife | — | Ireland |
| 30 | Anna Connolly | 20 | Daughter | Factory Sorter (Bulbs) | Mass |
| 31 | Margaret Connolly | 18 | Daughter | Salesgirl | Mass |
| 32 | Eleanor Connolly | 16 | Daughter | — | Mass |
| 33 | Teresa Connolly | 15 | Daughter | — | Mass |
| 34 | Josephine Connolly | 12 | Daughter | — | Mass |
| 35 | John Connolly | 11 | Son | — | Mass |
| 36 | Ruth Connors | 24 | Head | — | Mass |
| 37 | Thomas Connors | 16 | Son | — | Mass |
| 38 | Ruth Connors | 14 | Daughter | — | Mass |
| 39 | James H. Jr. Favor | 20 | Lodger | — | Mass |
| 40 | John L. Jr. Jordan | 30 | Head | Meter Reader | 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)