MD
Mary Donnelly — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Philadelphia-County, Pennsylvania
Our Model Tree links this Mary Donnelly across the 1920, 1930 and 1940 US Censuses in Philadelphia-County, Pennsylvania (XGBoost, ~Confirmed) — first a head (b.~1883), then head of a 6-person household.
Age 57
b. ~1883
Female
Head
Born: Ireland
Widowed
1940 Census Record Details
| Census Year | 1940 |
| Location | Philadelphia-County, Pennsylvania |
| Surname | Donnelly |
| Given Name | Mary A |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 57 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| 1935 Residence (City) | Phila |
| 1935 Residence (County) | Phila |
| Naturalization Status | Naturalized |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | 6 |
| 1935 Residence | Same place |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
| Township / Ward | Phila |
| Est. Birth Year | ~1883 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Donnelly | Head | — | 57 | ~1883 |
| Helen Donnelly | Other | — | 19 | ~1921 |
| Caroline Donnelly | Other | — | 34 | ~1906 |
| Francis Donnelly | Son | — | 31 | ~1909 |
| Joseph Donnelly | Son | — | 24 | ~1916 |
| Thomas Donnelly | Son | — | 20 | ~1920 |
Census Appearances
Spouse, age 34
Philadelphia, Pennsylvania · implied b. ~1886 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Donnelly |
| Given Name | Margaret |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 34 |
| Marital Status | Married |
| Birthplace | Ireland |
| Naturalization Status | Alien |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1930
Philadelphia, Pennsylvania
Spouse, age 45
Philadelphia, Pennsylvania · implied b. ~1885 — 13 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Donnelly |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | Ireland |
| Naturalization Status | First papers filed |
| Year of Immigration | 1895 |
| Age at First Marriage | 24 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read/Write | Yes |
| Mother Tongue | Irish |
| Veteran | No |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1940
Philadelphia-County, Pennsylvania
Head, age 57
Philadelphia-County, Pennsylvania · implied b. ~1883 — 6 household members
| Surname | Donnelly |
| Given Name | Mary A |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 57 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| 1935 Residence (City) | Phila |
| 1935 Residence (County) | Phila |
| Naturalization Status | Naturalized |
| Income (1939) | 0 |
| Highest Grade | 6 |
| 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 Donnelly 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 Donnelly
Head · 1940 · age 57 · b. ~1883 · Pennsylvania
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Philadelphia-County, Pennsylvania
Open full size
1940 US Federal Census — Philadelphia-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03751-00777)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Lester Borges | 18 | Son | — | Phila |
| 42 | John W Kelly | 38 | Head | Inspector | Phila |
| 43 | Helen Kelly | 43 | Wife | — | Phila |
| 44 | John W Jr Kelly | 15 | Son | — | Phila |
| 45 | James J Daugherty | 54 | Head | Special Officer | Phila |
| 46 | Mable Daugherty | 52 | Wife | — | Phila |
| 47 | John Daugherty | 20 | Son | Stock Clerk | Phila |
| 48 | Winifred Anderson | 76 | Mother in law | — | Phila |
| 49 | William Mulvihill | 29 | Head | Bank Messenger | Phila |
| 50 | Loretta Mulvihill | 25 | Wife | — | Phila |
| 51 | Loretta V Mulvihill | 3 | Daughter | — | Phila |
| 52 | Marie Tate | 21 | Sister in law | Waitress | Phila |
| 53 | Marie V Tate | 3 | Daughter | — | Phila |
| 54 | Loretta Carney | 50 | Mother in law | Chamber Maid | Mexico |
| 55 | Mary A Donnelly THIS PERSON | 57 | Head | — | Ireland |
| 56 | Thomas J Donnelly | 20 | Son | Bus Boy | Phila |
| 57 | Francis Donnelly | 31 | Son | Attendant | Phila |
| 58 | Caroline Donnelly | 34 | Daughter in law | Nurse | Phila |
| 59 | Joseph M Donnelly | 24 | Son | Truck Driver | Phila |
| 60 | Helen Donnelly | 19 | Daughter in law | — | Phila |
| 61 | James Mckelvey | 28 | Head | Clerk | Phila |
| 62 | John Mckelvey | 24 | Brother | Typist | Phila |
| 63 | Mary Mckelvey | 19 | Sister | — | Phila |
| 64 | Helen Mckelvey | 64 | Mother | — | Phila |
| 65 | Gustav Bonsted | 62 | Head | — | Phila |
| 66 | Lillian A Bonsted | 62 | Wife | — | Phila |
| 67 | Carl Bonsted | 26 | Son | General Helper | Phila |
| 68 | Florence Bonsted | 23 | Daughter in law | — | Phila |
| 69 | Florence Bonsted | 5 | Daughter | — | Phila |
| 70 | Carroll Bonsted | 2 | Daughter | — | Phila |
| 71 | William Crowley | 44 | Head | Operator | Phila |
| 72 | Kathryn Crowley | 42 | Wife | — | Phila |
| 73 | Regina Crowley | 17 | Daughter | — | Phila |
| 74 | Kathryn Crowley | 15 | Daughter | — | Phila |
| 75 | Emily Crowley | 13 | Daughter | — | Phila |
| 76 | Ethel Crowley | 9 | Daughter | — | Phila |
| 77 | Mary Jane Crowley | 8 | Daughter | — | Phila |
| 78 | Helen Crowley | 5 | Daughter | — | Phila |
| 79 | Carl Mccullough | 32 | Head | Line Clerk | Delaware |
| 80 | Christine Mccullough | 30 | Wife | — | Phila |
Related Census Records
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)