JD
James Donnelly — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Allegany-County, New York
Our Model Tree links this James Donnelly across the 1930 and 1940 US Censuses in Allegany-County, New York (XGBoost, ~Confirmed) — first a son (b.~1916), then head of a 11-person household.
Age 24
b. ~1916
Male
Son
Born: New York
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegany-County, New York |
| Surname | Donnelly |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (City) | Almond |
| 1935 Residence (County) | Allegany |
| Additional Details | |
| Occupation | laborer |
| Industry | building construction |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 1000 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
| Occupation | Laborer |
| Township / Ward | Almond |
| Est. Birth Year | ~1916 |
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 James | Age | Birth yr |
|---|---|---|---|---|
| Michael Barillo | Other | — | 24 | ~1916 |
| Arabelle Donnelly | Head | — | 41 | ~1899 |
| Carolyn Donnelly | Daughter | — | 18 | ~1922 |
| Mildred Donnelly | Daughter | — | 13 | ~1927 |
| Ellen Barillo | Daughter | — | 21 | ~1919 |
| William Donnelly | Son | — | 26 | ~1914 |
| James Donnelly | Son | — | 24 | ~1916 |
| Daisy Donnelly | Daughter | — | 24 | ~1916 |
| Mary Donnelly | Daughter | — | 15 | ~1925 |
| John Donnelly | Son | — | 17 | ~1923 |
| James Barillo | Other | — | 1 | ~1939 |
Census Appearances
1930
Allegany, New …
Son, age 14
Allegany, New York · implied b. ~1916 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Donnelly |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Can Read/Write | Yes |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1940
Allegany-County, New …
Son, age 24
Allegany-County, New York · implied b. ~1916 — 11 household members
| Surname | Donnelly |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (City) | Almond |
| 1935 Residence (County) | Allegany |
| Occupation | laborer |
| Industry | building construction |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 1000 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
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.
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This person
Anchor record
James Donnelly
Son · 1940 · age 24 · b. ~1916 · New York
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Sibling
Daisy Donnelly
Sibling · 1940 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ellen Barillo
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mildred Donnelly
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Carolyn Donnelly
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Donnelly
Sibling · 1940 · age 26
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Donnelly
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary 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 — Allegany-County, New York
Open full size
1940 US Federal Census — Allegany-County, New York
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02459-00109)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Pearl Davison | 58 | Head | — | New York |
| 42 | Neil Davison | 38 | Son | Laborer | New York |
| 43 | Carolyn Davison | 21 | Niece | Music Teacher | New York |
| 44 | Edwin Wheaton | 42 | Head | Laborer | Pennsylvania |
| 45 | Luella Wheaton | 32 | Wife | — | New York |
| 46 | Richard Wheaton | 10 | Son | — | New York |
| 47 | Virginia Wheaton | 9 | Daughter | — | New York |
| 48 | Agnes Wheaton | 7 | Daughter | — | New York |
| 49 | Thelma Wheaton | 6 | Daughter | — | New York |
| 50 | Tempest Fairpart | 19 | Brother in law | Laborer | New York |
| 51 | Charles Howard | 52 | Head | Farmer | Pennsylvania |
| 52 | Nellie Howard | 50 | Wife | — | Pennsylvania |
| 53 | Arabelle Donnelly | 41 | Head | — | New York |
| 54 | Daisy Donnelly | 24 | Daughter | Cashier | New York |
| 55 | William Donnelly | 26 | Son | Laborer | New York |
| 56 | James Donnelly THIS PERSON | 24 | Son | Laborer | New York |
| 57 | Carolyn Donnelly | 18 | Daughter | — | New York |
| 58 | John Donnelly | 17 | Son | Farmer | New York |
| 59 | Mary Donnelly | 15 | Daughter | — | New York |
| 60 | Mildred Donnelly | 13 | Daughter | — | New York |
| 61 | Michael Barillo | 24 | Son in law | Laborer | New York |
| 62 | Ellen Barillo | 21 | Daughter | — | New York |
| 63 | James Barillo | 1 | Grandson | — | New York |
| 64 | Francis Theon | 36 | Head | Farmer | New York |
| 65 | Ina Theon | 28 | Wife | — | New York |
| 66 | Virginia Theon | 8 | Daughter | — | New York |
| 67 | Mary Theon | 4 | Daughter | — | New York |
| 68 | Hanna Page | 68 | Mother | — | New York |
| 69 | Fred Hills | 19 | Lodger | Laborer | Indiana |
| 70 | John Key | 53 | Head | Tender Repair Man | Ireland |
| 71 | Mary Key | 49 | Wife | — | Ireland |
| 72 | Joseph Key | 18 | Son | Laborer | New York |
| 73 | Michael Key | 16 | Son | — | New York |
| 74 | Olga Key | 12 | Daughter | — | New York |
| 75 | Henry Mitchell | 24 | Head | Laborer | Michigan |
| 76 | Ida Mitchell | 21 | Wife | — | New York |
| 77 | Sandra Mitchell | 2 | Daughter | — | New York |
| 78 | Barbara Mitchell | 0 | Daughter | — | New York |
| 79 | John Downs | 37 | Head | Farmer | Pennsylvania |
| 80 | Isabel Downs | 34 | 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)