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Thomas Donnelly — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Philadelphia-County, Pennsylvania
Our Model Tree links this Thomas Donnelly across the 1930 and 1940 US Censuses in Philadelphia-County, Pennsylvania (XGBoost, ~Confirmed) — first a son (b.~1927), then head of a 11-person household.
Age 13
b. ~1927
Male
Son
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Philadelphia-County, Pennsylvania |
| Surname | Donnelly |
| Given Name | Thomas |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Philadelphia |
| 1935 Residence (County) | PHILADELPHIA |
| Additional Details | |
| Highest Grade | Hs 1 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Philadelphia |
| Est. Birth Year | ~1927 |
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.
11 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Thomas | Age | Birth yr |
|---|---|---|---|---|
| Mae Donnelly | Daughter | — | 15 | ~1925 |
| William Donnelly | Son | — | 9 | ~1931 |
| Agnes Donnelly | Daughter | — | 2 | ~1938 |
| Thomas Donnelly | Son | — | 13 | ~1927 |
| Joseph Donnelly | Son | — | 18 | ~1922 |
| Leonard Donnelly | Son | — | 3 | ~1937 |
| Irene Donnelly | Daughter | — | 7 | ~1933 |
| Mary Donnelly | Spouse | — | 41 | ~1899 |
| Rita Donnelly | Daughter | — | 19 | ~1921 |
| Betty Donnelly | Daughter | — | 12 | ~1928 |
| Thomas Donnelly | Head | — | 46 | ~1894 |
Census Appearances
1930
Montgomery, Pennsylvania
Son, age 3
Montgomery, Pennsylvania · implied b. ~1927 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Donnelly |
| Given Name | Thomas |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Philadelphia-County, Pennsylvania
Son, age 13
Philadelphia-County, Pennsylvania · implied b. ~1927 — 11 household members
| Surname | Donnelly |
| Given Name | Thomas |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Philadelphia |
| 1935 Residence (County) | PHILADELPHIA |
| Highest Grade | Hs 1 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
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 Thomas Donnelly across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Thomas Donnelly
Son · 1940 · age 13 · b. ~1927 · Pennsylvania
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Sibling
William Donnelly
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Betty Donnelly
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Irene Donnelly
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Donnelly
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Agnes Donnelly
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Leonard Donnelly
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rita Donnelly
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mae Donnelly
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
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-t0627-03752-00443)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Helen (A.B.) O'Donnell | 53 | Wife | — | Pennsylvania |
| 42 | Joseph Jr O'Donnell | 22 | Son | Seminary | Pennsylvania |
| 43 | Mary O'Donnell | 21 | Daughter | Training | Pennsylvania |
| 44 | Theresa O'Donnell | 19 | Daughter | Stenographer Sales | Pennsylvania |
| 45 | A. Vincent O'Donnell | 17 | Son | — | Pennsylvania |
| 46 | Helen O'Donnell | 11 | Daughter | — | Pennsylvania |
| 47 | Joseph A. Jr Mccreight | 32 | Head | Fireman | Pennsylvania |
| 48 | Claire Mccreight | 26 | Wife | — | Pennsylvania |
| 49 | Mary Ann Mccreight | 5 | Daughter | — | Pennsylvania |
| 50 | Regina Mccreight | 2 | Daughter | — | Pennsylvania |
| 51 | Joseph Mccreight | 2 | Son | — | Pennsylvania |
| 52 | Thomas Quinn | 68 | Head | Carpenter | England |
| 53 | Mary Quinn | 59 | Wife | Carpenter | Scotland |
| 54 | Thomas Donnelly | 46 | Head | Fireman | Northern Ireland |
| 55 | Mary Donnelly | 41 | Wife | Waitress | Northern Ireland |
| 56 | Rita Donnelly | 19 | Daughter | Bus Girl | Pennsylvania |
| 57 | Joseph Donnelly | 18 | Son | — | Northern Ireland |
| 58 | Mae Donnelly | 15 | Daughter | — | Northern Ireland |
| 59 | Thomas Donnelly THIS PERSON | 13 | Son | — | Pennsylvania |
| 60 | Betty Donnelly | 12 | Daughter | — | Pennsylvania |
| 61 | William Donnelly | 9 | Son | — | Pennsylvania |
| 62 | Irene Donnelly | 7 | Daughter | — | Pennsylvania |
| 63 | Leonard Donnelly | 3 | Son | — | Pennsylvania |
| 64 | Agnes Donnelly | 2 | Daughter | — | Pennsylvania |
| 65 | Vincent De Guise | 29 | Head | Floorman | Pennsylvania |
| 66 | Ella De Guise | 27 | Wife | — | Pennsylvania |
| 67 | Ella De Guise | 7 | Daughter | — | Pennsylvania |
| 68 | Vincent De Guise | 5 | Son | — | Pennsylvania |
| 69 | Charles Brady | 64 | Head | Superintendent Mill | Pennsylvania |
| 70 | Margaret Mccaffrey | 39 | Daughter | — | Pennsylvania |
| 71 | Daniel Campbell | 44 | Head | Shipper | Pennsylvania |
| 72 | Sarah Campbell | 39 | Wife | — | Northern Ireland |
| 73 | John Campbell | 10 | Son | — | Pennsylvania |
| 74 | Marie Campbell | 8 | Daughter | — | Pennsylvania |
| 75 | Daniel Campbell | 1 | Son | — | Pennsylvania |
| 76 | Sarah Gillespie | 78 | Aunt | — | Northern Ireland |
| 77 | Hugh B Lynch | 35 | Son | Salesman | Pennsylvania |
| 78 | Mary B Lynch | 68 | Mother | — | Northern Ireland |
| 79 | Joseph P Lynch | 27 | Brother | Office | Pennsylvania |
| 80 | William Mcginley | 35 | Head | Plumber | Pennsylvania |
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)