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John Donnelly — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Kings-County, New York
Our Model Tree links this John Donnelly across the 1910, 1920, 1930 and 1940 US Censuses in Kings-County, New York (XGBoost, ~Confirmed) — first a head (b.~1883), then head of a 5-person household.
Age 57
b. ~1883
Male
Head
Born: Ireland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Kings-County, New York |
| Surname | Donnelly |
| Given Name | John J |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 57 |
| Marital Status | Married |
| Birthplace | Ireland |
| 1935 Residence (City) | Borough of Bklyn |
| 1935 Residence (County) | Kings |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Laborer |
| Industry | Tunnel Bldg |
| Class of Worker | PW |
| Hours Worked | 20 |
| Income (1939) | 800 |
| Highest Grade | No 8 |
| 1935 Residence | Same House |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
| Occupation | Laborer |
| Township / Ward | Borough Of Bklyn |
| 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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Mary Donnelly | Daughter | — | 25 | ~1915 |
| Katherine Donnelly | Daughter | — | 21 | ~1919 |
| John Donnelly | Head | — | 57 | ~1883 |
| John Donnelly | Son | — | 27 | ~1913 |
| Mary Donnelly | Spouse | — | 50 | ~1890 |
Census Appearances
1910
Kings, New …
Other, age 22
Kings, New York · implied b. ~1888 — 12 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Donnelly |
| Given Name | Joseph |
| Relationship to Head | Boarder |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Ireland |
| Year of Immigration | 1904 |
| Naturalization Status | Alien |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Laborer |
| Industry | Oil Works |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1920
Kings, New …
Other, age 34
Kings, New York · implied b. ~1886 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Donnelly |
| Given Name | Joseph |
| Relationship to Head | Brother-in-law |
| Sex | M |
| Color / Race | White |
| Age | 34 |
| Marital Status | Single |
| Birthplace | Ireland |
| Year of Immigration | 1904 |
| Naturalization Status | First papers filed |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Brakeman |
| Industry | Rail Road |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1930
Kings, New …
Head, age 45
Kings, New York · implied b. ~1885 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Donnally |
| Given Name | John J. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | Ireland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1905 |
| Age at First Marriage | 28 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Laborer |
| Industry | Building |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Home Owned/Rented | O |
| Home Value / Rent | 6500 |
| Radio Set | R |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1940
Kings-County, New …
Head, age 57
Kings-County, New York · implied b. ~1883 — 5 household members
| Surname | Donnelly |
| Given Name | John J |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 57 |
| Marital Status | Married |
| Birthplace | Ireland |
| 1935 Residence (City) | Borough of Bklyn |
| 1935 Residence (County) | Kings |
| Naturalization Status | Naturalized |
| Occupation | Laborer |
| Industry | Tunnel Bldg |
| Class of Worker | PW |
| Hours Worked | 20 |
| Income (1939) | 800 |
| Highest Grade | No 8 |
| 1935 Residence | Same House |
| 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 John Donnelly across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
John Donnelly
Head · 1940 · age 57 · b. ~1883 · New York
★ 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 — Kings-County, New York
Open full size
1940 US Federal Census — Kings-County, New York
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02617-00443)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Ida Ales | 20 | Son | Office Typist | New York |
| 42 | Marguarite Ales | 19 | Daughter | — | New York |
| 43 | Pito Ganglion | 27 | Head | Laborer | Italy |
| 44 | Laura Ganglion | 27 | Brother | — | New York |
| 45 | Rae Ganglion | 33 | Sister | Typist | New York |
| 46 | Mary Ganglion | 59 | Mother | — | Italy |
| 47 | Michael Figlioli | 38 | Head | Operator | Italy |
| 48 | Camelia Figlioli | 33 | Wife | — | New York |
| 49 | Isabella Figlioli | 14 | Daughter | — | New York |
| 50 | Ida Dilia | 56 | Mother in law | — | Italy |
| 51 | Henry D Kunanen | 48 | Head | Salesman | New York |
| 52 | Amelia Kunanen | 18 | Daughter | — | New York |
| 53 | Wife Mason | 40 | Wife | Office Worker | New York |
| 54 | Matilda Hock | 74 | Mother in law | — | Germany |
| 55 | James F Karns | 46 | Head | Foreman | New York |
| 56 | Catherine Karns | 47 | Wife | — | New York |
| 57 | John Desand | 80 | Uncle | — | New York |
| 58 | Joseph Mcdowell | 35 | Cousin | Laborer | New York |
| 59 | Gustav Jonson | 64 | Head | Machinist | Sweden |
| 60 | Hulda Jonson | 62 | Wife | — | Sweden |
| 61 | Lillian Jonson | 26 | Daughter | Stenographer | New York |
| 62 | John H King | 49 | Head | Service Man | New York |
| 63 | Edith D King | 46 | Wife | — | Illinois |
| 64 | John H King | 23 | Son | Printer | New York |
| 65 | Adalaide King | 21 | Daughter | Operator | New York |
| 66 | Adelaide Malone | 67 | Mother in law | — | Massachusetts |
| 67 | Extra Line Extra Line | None | Extra line | Extra Line | Extra line |
| 68 | Extra Line Extra Line | None | Extra line | Extra Line | Extra line |
| 69 | Extra Line Extra Line | None | Extra line | Extra Line | Extra line |
| 70 | John J Donnelly THIS PERSON | 57 | Head | Laborer | Ireland |
| 71 | Mary Donnelly | 50 | Wife | — | Ireland |
| 72 | John Donnelly | 27 | Son | Apprentice | New York |
| 73 | Mary Donnelly | 25 | Daughter | Typist | New York |
| 74 | Katherine Donnelly | 21 | Daughter | Shipping Clerk | New York |
| 75 | James A Beatty | 43 | Head | Manager | New York |
| 76 | Bride M Beatty | 43 | Wife | — | Ireland |
| 77 | Kevin Beatty | 13 | Son | — | New York |
| 78 | Mary Beatty | 11 | Daughter | — | New York |
| 79 | Patricia Beatty | 10 | Daughter | — | New York |
| 80 | Paul Beatty | 6 | Son | — | New York |
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)