MS
Mary Sweeney — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this Mary Sweeney across the 1920, 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed) — first a head (b.~1855), then head of a 5-person household.
Age 85
b. ~1855
Female
Head
Born: Ireland
Widowed
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Sweeney |
| Given Name | Mary A. |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 85 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| 1935 Residence (City) | Medford City |
| 1935 Residence (County) | Middlesex |
| Additional Details | |
| Industry | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
| Township / Ward | Medford City |
| Est. Birth Year | ~1855 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Agnes Sweeney | Daughter | — | 58 | ~1882 |
| Marguerite Sweeney | Daughter | — | 52 | ~1888 |
| Mary Sweeney | Head | — | 85 | ~1855 |
| Elizabeth Bradley | Other | — | 64 | ~1876 |
| Daniel Sweeney | Son | — | 45 | ~1895 |
Census Appearances
1920
Middlesex, Massachusetts
Head, age 67
Middlesex, Massachusetts · implied b. ~1853 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sweeney |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 67 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Home Owned/Rented | Al |
| Birth Country | Ireland |
| Year of Naturalization | 1870 |
| Birthplace (normalized) | ireland |
1930
Middlesex, Massachusetts
Head, age 75
Middlesex, Massachusetts · implied b. ~1855 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sweeney |
| Given Name | Mary A. |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 75 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1860 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Home Owned/Rented | O |
| Home Value / Rent | 5500 |
| Radio Set | R |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1940
Middlesex-County, Massachusetts
Head, age 85
Middlesex-County, Massachusetts · implied b. ~1855 — 5 household members
| Surname | Sweeney |
| Given Name | Mary A. |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 85 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| 1935 Residence (City) | Medford City |
| 1935 Residence (County) | Middlesex |
| Industry | 0 |
| Highest Grade | No 8 |
| 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 Sweeney 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 Sweeney
Head · 1940 · age 85 · b. ~1855 · 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
39 people indexed on this census page (nara:1940:m-t0627-01611-00340)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Genevieve Cullen | 17 | Daughter | — | Massachusetts |
| 42 | John P. Dramis | 44 | Head | Waiter | Greece |
| 43 | Pastora J. Dramis | 42 | Wife | — | Greece |
| 44 | Theodore Dramis | 11 | Son | — | Massachusetts |
| 45 | Annastacia Dramis | 9 | Daughter | — | Massachusetts |
| 46 | Alexander Prendergast | 39 | Head | Salesman | Mass. |
| 47 | Marion A. Prendergast | 38 | Wife | — | Mass. |
| 48 | Dorothy H. Prendergast | 17 | Daughter | — | Mass. |
| 49 | Edward E. Prendergast | 14 | Son | — | Mass. |
| 50 | Frances M. Prendergast | 12 | Daughter | — | Mass. |
| 52 | George Russell | 45 | Head | Physician | Canada |
| 53 | Ida Russell | 40 | Wife | — | Canada |
| 54 | Dominic P. Mauriello | 33 | Head | Physician | Italy |
| 55 | Erika Albertina Mauriello | 30 | Wife | — | Sweden |
| 56 | Francesco P. Mauriello | 7 | Son | — | Massachusetts |
| 57 | Margaret E. Johnson | 25 | Niece | Secretary | English |
| 58 | Thomas Maguire | 60 | Head | Painter | Massachusetts |
| 59 | Grace R. Maguire | 57 | Wife | — | Massachusetts |
| 60 | John C. Chipman | 58 | Head | Metal Salesman | English |
| 61 | Helen M. Chipman | 60 | Sister | — | English |
| 62 | Samuel Stourney | 66 | Head | Street Car Conductor | Northern Ireland |
| 63 | Margaret Stourney | 54 | Wife | — | Northern Ireland |
| 64 | William J. Stourney | 34 | Son | Linotype Operator | Northern Ireland |
| 65 | Samuel H. Stourney | 32 | Son | House Painter | Northern Ireland |
| 66 | Robert Stourney | 23 | Son | — | Massachusetts |
| 67 | Dorothy M. King | 28 | Daughter | — | Massachusetts |
| 68 | Janet P. King | 5 | Daughter | — | Massachusetts |
| 69 | Clarence H. Tenney | 52 | Head | Linotype Operator | Massachusetts |
| 70 | Lillian G. Tenney | 43 | Wife | — | Massachusetts |
| 71 | William H. Tenney | 24 | Son | Tree Surgeon | Massachusetts |
| 72 | Muriel G. Tenney | 15 | Daughter | — | Massachusetts |
| 73 | Clarence H. Tenney | 12 | Son | — | Massachusetts |
| 74 | Robert E. Tenney | 7 | Son | — | Massachusetts |
| 75 | Mary A. Sweeney THIS PERSON | 85 | Head | — | Ireland |
| 76 | Agnes G. Sweeney | 58 | Daughter | School Teacher | Mass. |
| 77 | Marguerite C. Sweeney | 52 | Daughter | School Teacher | Mass. |
| 78 | Daniel B. Sweeney | 45 | Son | Painter | Mass. |
| 79 | Elizabeth Bradley | 64 | Niece | — | Mass. |
| 80 | Marion M. Russell | 50 | Head | — | New Hampshire |
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)