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James Donnelly — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Philadelphia-County, Pennsylvania
Our Model Tree links this James Donnelly across the 1930 and 1940 US Censuses in Philadelphia-County, Pennsylvania (XGBoost, ~Confirmed) — first a son (b.~1914), then head of a 8-person household.
Age 26
b. ~1914
Male
Son
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Philadelphia-County, Pennsylvania |
| Surname | Donnelly |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Philadelphia |
| 1935 Residence (County) | Philadelphia |
| Additional Details | |
| Occupation | Janitor |
| Industry | Public School |
| Class of Worker | GW |
| Hours Worked | 40 |
| Income (1939) | 912 |
| Highest Grade | No 4 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Janitor |
| Township / Ward | Philadelphia |
| Est. Birth Year | ~1914 |
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 James | Age | Birth yr |
|---|---|---|---|---|
| Isabelle Donnelly | Spouse | — | 51 | ~1889 |
| Mary Donnelly | Daughter | — | 19 | ~1921 |
| Charles Donnelly | Son | — | 18 | ~1922 |
| James Donnelly | Head | — | 62 | ~1878 |
| Katherine Donnelly | Daughter | — | 27 | ~1913 |
| James Donnelly | Son | — | 26 | ~1914 |
| Jack Donnelly | Son | — | 23 | ~1917 |
| Mildred Donnelly | Daughter | — | 24 | ~1916 |
Census Appearances
1930
Philadelphia, Pennsylvania
Son, age 16
Philadelphia, Pennsylvania · implied b. ~1914 — 16 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Donnelly |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Philadelphia-County, Pennsylvania
Son, age 26
Philadelphia-County, Pennsylvania · implied b. ~1914 — 8 household members
| Surname | Donnelly |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Philadelphia |
| 1935 Residence (County) | Philadelphia |
| Occupation | Janitor |
| Industry | Public School |
| Class of Worker | GW |
| Hours Worked | 40 |
| Income (1939) | 912 |
| Highest Grade | No 4 |
| 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 James Donnelly across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
James Donnelly
Son · 1940 · age 26 · b. ~1914 · Pennsylvania
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Sibling
Katherine Donnelly
Sibling · 1940 · age 27
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jack Donnelly
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charles Donnelly
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Donnelly
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mildred Donnelly
Sibling · 1940 · age 24
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
38 people indexed on this census page (nara:1940:m-t0627-03700-00304)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | James E. O'Brien | 55 | Head | Fireman | Pennsylvania |
| 2 | Faustine P. O'Brien | 45 | Wife | — | Pennsylvania |
| 3 | John O'Brien | 16 | Son | — | Pennsylvania |
| 4 | James O'Brien | 12 | Son | — | Pennsylvania |
| 5 | Lois O'Brien | 9 | Daughter | — | Pennsylvania |
| 6 | George O'Brien | 7 | Son | — | Pennsylvania |
| 7 | William O'Brien | 3 | Son | — | Pennsylvania |
| 8 | Keith, Robert O'Brien | 28 | Step son | — | Pennsylvania |
| 9 | James Aveline | 35 | Head | Machine Operator | Pennsylvania |
| 10 | Kathryn Aveline | 33 | Wife | Weaver | Pennsylvania |
| 11 | James Aveline | 13 | Son | — | Pennsylvania |
| 12 | Richard Aveline | 12 | Son | — | Pennsylvania |
| 15 | James M. Donnelly | 62 | Head | Chipper | Pennsylvania |
| 16 | Isabelle P. Donnelly | 51 | Wife | — | Pennsylvania |
| 17 | Katherine Donnelly | 27 | Daughter | Telegraph Operator | Pennsylvania |
| 18 | James Donnelly THIS PERSON | 26 | Son | Janitor | Pennsylvania |
| 19 | Jack Donnelly | 23 | Son | Weaver | Pennsylvania |
| 20 | Mildred Donnelly | 24 | Daughter | Packer | Pennsylvania |
| 21 | Mary Donnelly | 19 | Daughter | Packer | Pennsylvania |
| 22 | Charles Donnelly | 18 | Son | New Worker | Pennsylvania |
| 23 | William N. Goodwin | 44 | Head | Floor Boss | Ohio |
| 24 | Elmira Goodwin | 44 | Wife | — | Ohio |
| 25 | Robert Goodwin | 23 | Son | Chart Man | Ohio |
| 26 | Donald Goodwin | 20 | Daughter | New Worker | Ohio |
| 27 | Richard Goodwin | 16 | Son | — | Ohio |
| 28 | Norman Goodwin | 14 | Son | — | Ohio |
| 29 | Marvin Goodwin | 10 | Son | — | Ohio |
| 30 | James Goodwin | 9 | Son | — | Ohio |
| 31 | Clarence H. Lanor | 53 | Head | Chauffeur | Pennsylvania |
| 32 | Leatha Lanor | 49 | Wife | Apple Trimmer | W. Virginia |
| 33 | Clarence Lanor | 11 | Son | — | Pennsylvania |
| 34 | John J. Nolan | 58 | Head | Block Operator | Pennsylvania |
| 35 | Jane Nolan | 58 | Wife | — | Pennsylvania |
| 36 | Francis E. Nolan | 28 | Son | Caddymaster | Pennsylvania |
| 37 | Edith E. Talbot | 30 | Lodger | Plush Mender | Pennsylvania |
| 38 | Clarice Talbot | 63 | Lodger | — | Pennsylvania |
| 39 | John T. Parkinson | 56 | Head | Pipe Fitter | Pennsylvania |
| 40 | Mary Parkinson | 51 | Wife | — | Pennsylvania |
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)