JD
John Dunn — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Nassau-County, New York
Our Model Tree links this John Dunn across the 1920, 1930 and 1940 US Censuses in Nassau-County, New York (XGBoost, ~Confirmed) — first a head (b.~1894), then head of a 3-person household.
Age 46
b. ~1894
Male
Head
Born: Ireland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Nassau-County, New York |
| Surname | Dunn |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | Ireland |
| 1935 Residence (City) | Sands Point |
| 1935 Residence (County) | Nassau |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Groom |
| Industry | Private Estate |
| Class of Worker | PW |
| Hours Worked | 72 |
| Income (1939) | 1800 |
| Highest Grade | No 8 |
| 1935 Residence | Same House |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
| Occupation | Groom |
| Township / Ward | Sands Point |
| Est. Birth Year | ~1894 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Margaret Dunn | Daughter | — | 22 | ~1918 |
| John Dunn | Head | — | 46 | ~1894 |
| Bridget Dunn | Spouse | — | 47 | ~1893 |
Census Appearances
1920
New York, …
Other, age 28
New York, New York · implied b. ~1892 — 50 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Dunn |
| Given Name | John J. |
| Relationship to Head | Boarder |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | Ireland |
| Year of Immigration | 1905 |
| Naturalization Status | Alien |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Laborer |
| Industry | Shoveler |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Gaelic |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1930
New York, …
Head, age 37
New York, New York · implied b. ~1893 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Dunn |
| Given Name | John J. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Ireland |
| Year of Immigration | 1904 |
| Age at First Marriage | 25 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Chauffeur |
| Industry | Private |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Home Value / Rent | 52 |
| Radio Set | R |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1940
Nassau-County, New …
Head, age 46
Nassau-County, New York · implied b. ~1894 — 3 household members
| Surname | Dunn |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | Ireland |
| 1935 Residence (City) | Sands Point |
| 1935 Residence (County) | Nassau |
| Naturalization Status | Naturalized |
| Occupation | Groom |
| Industry | Private Estate |
| Class of Worker | PW |
| Hours Worked | 72 |
| Income (1939) | 1800 |
| 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 Dunn across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
John Dunn
Head · 1940 · age 46 · b. ~1894 · New York
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Nassau-County, New York
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1940 US Federal Census — Nassau-County, New York
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02691-00735)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Grace Shirley | 69 | Head | — | New Hampshire |
| 2 | Dominick Patratta | 44 | Head | — | Italy |
| 3 | Josephine Patratta | 42 | Wife | — | Italy |
| 4 | Martin Patratta | 18 | Son | — | Italy |
| 5 | Charles Patratta | 16 | Son | — | New Jersey |
| 6 | Antoinette Patratta | 15 | Daughter | — | New Jersey |
| 7 | Lena Patratta | 6 | Daughter | — | New York |
| 8 | William Mackie | 63 | Head | Superintendent | Scotland |
| 9 | Elizabeth Mackie | 64 | Wife | — | England |
| 10 | Evelyn Mackie | 31 | Daughter | — | England |
| 11 | Janet Mackie | 27 | Daughter | — | England |
| 12 | Robert Mackay | 38 | Head | Dairyman | Scotland |
| 13 | Agnes Mackay | 40 | Wife | — | Scotland |
| 14 | John Dunn THIS PERSON | 46 | Head | Groom | Ireland |
| 15 | Bridget Dunn | 47 | Wife | — | Ireland |
| 16 | Margaret Dunn | 22 | Daughter | Teacher | New Jersey |
| 17 | William H. Richardson | 54 | Head | Personal Handler | Scotland |
| 18 | Alfred Hulta | 63 | Head | Superintendent | New York |
| 19 | Alice Hulta | 65 | Wife | — | New York |
| 20 | Alfred Jr. Hulta | 32 | Son | 156 | New York |
| 21 | Anna Rademacher | 50 | Head | Housemaid | New York |
| 22 | William Zwakshals | 27 | Head | Butler | Belgium |
| 23 | Mary Zwakshals | 28 | Wife | Cook | Ireland |
| 24 | William Zwakshals | 0 | Son | — | New York |
| 25 | Raymond H. Dewever | 42 | Head | Chef | France |
| 26 | Anna Blecha | 50 | Head | Housemaid | Czechoslovakia |
| 27 | Murray Blecha | 52 | Son | — | New York |
| 28 | Blecha | 48 | Daughter | — | New York |
| 29 | William G. Shea | 60 | Head | Engineer | Scotland |
| 30 | Edward S. Baruch | 32 | Head | Minister | Ireland |
| 31 | Margaret Baruch | 30 | Wife | Teacher | New York |
| 32 | Sidney Jones | 67 | Head | Steward | England |
| 33 | Lillian E. Jones | 47 | Wife | — | England |
| 34 | Margaret W. Jones | 15 | Daughter | — | New York |
| 35 | Thomas J. Jones | 13 | Son | — | New York |
| 36 | Florence R. Jones | 11 | Daughter | — | New York |
| 37 | John Zwakshals | 32 | Head | Butler | Holland |
| 38 | Nellie Zwakshals | 28 | Wife | Maid | New York |
| 39 | Anna Marie Zwakshals | 2 | Daughter | — | New York |
| 40 | Frances Snaquest | 34 | Head | Cook | 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)