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Mary Mcdonnell — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Hampden-County, Massachusetts
Our Model Tree links this Mary Mcdonnell across the 1930 and 1940 US Censuses in Hampden-County, Massachusetts (XGBoost, ~Confirmed) — first a spouse (b.~1888), then head of a 4-person household.
Age 52
b. ~1888
Female
Spouse
Born: Irish Free State
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Hampden-County, Massachusetts |
| Surname | McDonnell |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 52 |
| Marital Status | Married |
| Birthplace | Irish Free State |
| 1935 Residence (City) | Holyoke |
| 1935 Residence (County) | Hampden |
| Naturalization Status | Naturalized |
| Additional Details | |
| Highest Grade | Gr 8 |
| 1935 Residence | Same House |
| Birthplace (normalized) | irish free state |
| Township / Ward | Holyoke |
| Est. Birth Year | ~1888 |
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 Mcdonnell | Daughter | — | 21 | ~1919 |
| Francis Mcdonnell | Head | — | 54 | ~1886 |
| Mary Mcdonnell | Spouse | — | 52 | ~1888 |
| Catherine Mcdonnell | Daughter | — | 19 | ~1921 |
Census Appearances
1930
Hampden, Massachusetts
Spouse, age 43
Hampden, Massachusetts · implied b. ~1887 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McDonnell |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | Irish Free State |
| Naturalization Status | Naturalized |
| Year of Immigration | 1907 |
| Age at First Marriage | 29 |
| Father's Birthplace | Irish Free State |
| Mother's Birthplace | Irish Free State |
| Occupation | none |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Birthplace (normalized) | irish free state |
1940
Hampden-County, Massachusetts
Spouse, age 52
Hampden-County, Massachusetts · implied b. ~1888 — 4 household members
| Surname | McDonnell |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 52 |
| Marital Status | Married |
| Birthplace | Irish Free State |
| 1935 Residence (City) | Holyoke |
| 1935 Residence (County) | Hampden |
| Naturalization Status | Naturalized |
| Highest Grade | Gr 8 |
| 1935 Residence | Same House |
| 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 Mcdonnell across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Mcdonnell
Spouse · 1940 · age 52 · b. ~1888 · 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 — Hampden-County, Massachusetts
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1940 US Federal Census — Hampden-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01596-00303)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Catherine O'Donnell | 48 | Head | — | Irish Free State |
| 42 | Catherine E. O'Donnell | 17 | Daughter | — | Mass |
| 43 | Joseph O'Donnell | 13 | Son | — | Irish Free State |
| 44 | James Bower | 62 | Head | Probation Officer | Scotland |
| 45 | Jane Bower | 64 | Wife | — | Scotland |
| 46 | Alice Halley | 45 | Head | Sorter | Conn |
| 47 | Frank Halley | 47 | Brother | Laborer | Mass |
| 48 | Ruth Miles | 43 | Sister | — | Conn |
| 49 | Edward Miles | 10 | Nephew | — | Mass |
| 50 | William Murphy | 40 | Head | Janitor | Conn |
| 51 | Alma Murphy | 39 | Wife | Cutter Girl | Mass |
| 52 | — | None | — | — | — |
| 53 | William Mc Cray | 55 | Head | Mechanic | Conn |
| 54 | Leonard Mc Cray | 26 | Son | — | Mass |
| 55 | David Kennedy | 33 | Lodger | — | Scotland |
| 56 | — | None | — | — | — |
| 57 | Elizabeth Bauer | 45 | Head | Cor. Clerk | Mass |
| 58 | Walter Bauer | 42 | Brother | Sealer | Mass |
| 59 | Martha Bauer | 41 | Sister | — | Mass |
| 60 | Thomas Mcgracy | 49 | Head | Brakeman | Mass |
| 61 | Louise Mcgracy | 45 | Wife | — | Mass |
| 62 | Alfred La Plante | 28 | Head | Store Clerk | Conn |
| 63 | Bernice La Plante | 23 | Wife | — | Easthampton |
| 64 | Alfred Jr. La Plante | 1 | Son | — | Mass |
| 65 | Mark Mullaney | 60 | Head | Machinist | Scotland |
| 66 | Mary Mullaney | 60 | Wife | — | Scotland |
| 67 | Amelia Mullaney | 31 | Daughter | Stenographer | Mass |
| 68 | Elmer Mullaney | 26 | Son | Attendant | Mass |
| 69 | Keith Mullaney | 1 | Son | — | Mass |
| 70 | Max Hebert | 60 | Head | Paper Trimmer | Germany |
| 71 | Elsie Hebert | 53 | Sister | — | Germany |
| 72 | Alice Wright | 61 | Head | — | England |
| 73 | Walter Barrett | 36 | Head | Plate Roller | Mass |
| 74 | Winifred Barrett | 36 | Wife | — | Mass |
| 75 | Douglas Barrett | 5 | Son | — | Mass |
| 76 | Suzanne Barrett | 1 | Daughter | — | Mass |
| 77 | Francis Mcdonnell | 54 | Head | Fireman | Mass |
| 78 | Mary Mcdonnell THIS PERSON | 52 | Wife | — | Irish Free State |
| 79 | Mary F. Mcdonnell | 21 | Daughter | Teacher | Mass |
| 80 | Catherine Mcdonnell | 19 | Daughter | — | 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)