MC
Mary Carney — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Suffolk-County, Massachusetts
Our Model Tree links this Mary Carney across the 1930 and 1940 US Censuses in Suffolk-County, Massachusetts (XGBoost, ~Confirmed) — first a spouse (b.~1904), then head of a 8-person household.
Age 36
b. ~1904
Female
Spouse
Born: Irish Free State
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Suffolk-County, Massachusetts |
| Surname | Carney |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | Irish Free State |
| 1935 Residence (City) | Boston |
| 1935 Residence (County) | Suffolk |
| Naturalization Status | Naturalized |
| Additional Details | |
| Class of Worker | H |
| Hours Worked | 0 |
| Income (1939) | 0 |
| Highest Grade | 8 |
| 1935 Residence | Same Place |
| Birthplace (normalized) | irish free state |
| Township / Ward | Boston |
| Est. Birth Year | ~1904 |
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 |
|---|---|---|---|---|
| Thomas Carney | Son | — | 22 | ~1918 |
| John Carney | Son | — | 23 | ~1917 |
| Nora Carney | Daughter | — | 18 | ~1922 |
| Joseph Carney | Son | — | 6 | ~1934 |
| Michael Carney | Head | — | 52 | ~1888 |
| Agnes Carney | Daughter | — | 2 | ~1938 |
| Mary Carney | Spouse | — | 36 | ~1904 |
| Mary Carney | Daughter | — | 20 | ~1920 |
Census Appearances
1930
Norfolk, Massachusetts
Other, age 26
Norfolk, Massachusetts · implied b. ~1904 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Carney |
| Given Name | Mary |
| Relationship to Head | Servant |
| Sex | F |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Irish Free State |
| Naturalization Status | Alien |
| Year of Immigration | 1925 |
| Father's Birthplace | Irish Free State |
| Mother's Birthplace | Irish Free State |
| Occupation | Servant |
| Industry | Private family |
| Class of Worker | 9596 |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Birthplace (normalized) | irish free state |
1940
Suffolk-County, Massachusetts
Spouse, age 36
Suffolk-County, Massachusetts · implied b. ~1904 — 8 household members
| Surname | Carney |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | Irish Free State |
| 1935 Residence (City) | Boston |
| 1935 Residence (County) | Suffolk |
| Naturalization Status | Naturalized |
| Class of Worker | H |
| Hours Worked | 0 |
| Income (1939) | 0 |
| Highest Grade | 8 |
| 1935 Residence | Same Place |
| Birthplace (normalized) | irish free state |
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 Carney across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Carney
Spouse · 1940 · age 36 · b. ~1904 · 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-t0627-01671-00442)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Lillian Cady | 36 | Wife | — | Massachusetts |
| 2 | Emma Denman | 65 | Mother-in-law | — | Sweden |
| 3 | Thomas E. Mehaffy | 31 | Head | Machinist | Massachusetts |
| 4 | Mary E. Mehaffy | 30 | Wife | — | Mass |
| 5 | Thomas J. Mehaffy | 5 | Son | — | Mass |
| 6 | Joseph D. Cronin | 26 | Brother-in-law | Grocery Mgr. | Mass |
| 7 | Helen M. Cronin | 28 | Sister-in-law | Librarian | Mass |
| 8 | John P. Pierri | 26 | Head | Salesman | Mass |
| 9 | Madeline Pierri | 27 | Wife | — | Mass |
| 10 | John Jr. Pierri | 1 | Son | — | Mass |
| 11 | Annetta Moore | 32 | Sister-in-law | Packer | Mass |
| 12 | John Moore | 64 | Father-in-law | Watchman | Mass |
| 13 | John O'Donnell | 56 | Head | Capt Of Watch | Mass |
| 14 | Eileen O'Donnell | 56 | Wife | — | Mass |
| 15 | Mary A. Moore | 62 | Head | — | Mass |
| 16 | Mary E. Moore | 37 | Daughter | Comptometer Oper. | Mass |
| 17 | Herbert J. Moore | 32 | Son | Shoe Worker | Mass |
| 18 | Michael J. Carney | 52 | Head | Engineer | Irish Free State |
| 19 | Mary Carney THIS PERSON | 36 | Wife | — | Irish Free State |
| 20 | John J. Carney | 23 | Son | Stock Clerk | Mass |
| 21 | Thomas Carney | 22 | Son | Helper | Mass |
| 22 | Mary Carney | 20 | Daughter | — | Mass |
| 23 | Nora Carney | 18 | Daughter | — | Mass |
| 24 | Joseph Carney | 6 | Son | — | Mass |
| 25 | Agnes Carney | 2 | Daughter | — | Mass |
| 26 | William H. Mcneil | 42 | Head | Fireman | Mass |
| 27 | Agnes Mcneil | 40 | Wife | — | Mass |
| 28 | Wayne Mcneil | 5 | Daughter | — | Mass |
| 29 | Philip Mcenter | 38 | Head | Store Mgr | Irish Free State |
| 30 | Nora Mcenter | 39 | Wife | — | Irish Free State |
| 31 | Lawrence Mcenter | 5 | Son | — | Mass |
| 32 | Philip Jr. Mcenter | 5 | Son | — | Mass |
| 33 | Gustaf Johnson | 48 | Head | Bookbinder | Sweden |
| 34 | Nellie Johnson | 47 | Wife | — | Sweden |
| 35 | Greta Johnson | 7 | Daughter | — | Mass |
| 36 | Paul Johnson | 2 | Son | — | Mass |
| 37 | Charles Meroski | 61 | Head | Clerk | Connecticut |
| 38 | Catherine Meroski | 63 | Wife | — | Germany |
| 39 | George Margaret Meroski | 27 | Daughter | — | New York |
| 40 | Joseph Sendakowicz | 54 | Head | Tailor | Lithuania |
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)