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Thomas Duffy — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Kings, New York
Our Model Tree links this Thomas Duffy across the 1920, 1930 and 1940 US Censuses in Kings, New York (XGBoost, ~Confirmed) — first a head (b.~1886), then head of a 4-person household.
Age 44
b. ~1886
Male
Head
Born: Ireland
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Kings, New York |
| Surname | Duffy |
| Given Name | Thomas |
| Relationship to Head | head |
| Sex | M |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Ireland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1911 |
| Age at First Marriage | 31 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Additional Details | |
| Occupation | bricklayer |
| Industry | building |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Home Value / Rent | 10 |
| Radio Set | R |
| Veteran | No |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
| Occupation | Bricklayer |
| Township / Ward | Brooklyn Borough New York |
| Est. Birth Year | ~1886 |
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.
4 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Thomas | Age | Birth yr |
|---|---|---|---|---|
| Thomas Duffy | Head | — | 44 | ~1886 |
| Agnes Duffy | Daughter | — | 10 | ~1920 |
| James Duffy | Son | — | 12 | ~1918 |
| Bridget Duffy | Spouse | — | 43 | ~1887 |
Census Appearances
1920
Kings, New …
Other, age 34
Kings, New York · implied b. ~1886 — 36 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Duffy |
| Given Name | Thomas |
| Relationship to Head | Lodger |
| Sex | M |
| Color / Race | White |
| Age | 34 |
| Marital Status | Single |
| Birthplace | Ireland |
| Naturalization Status | First papers filed |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Laborer |
| 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 44
Kings, New York · implied b. ~1886 — 4 household members
| Surname | Duffy |
| Given Name | Thomas |
| Relationship to Head | head |
| Sex | M |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Ireland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1911 |
| Age at First Marriage | 31 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | bricklayer |
| Industry | building |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Home Value / Rent | 10 |
| Radio Set | R |
| Veteran | No |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1940
Kings-County, New …
Head, age 54
Kings-County, New York · implied b. ~1886 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Duffy |
| Given Name | Thos |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 54 |
| Marital Status | Married |
| Birthplace | Ireland |
| 1935 Residence (City) | NYC |
| 1935 Residence (County) | Kings |
| Naturalization Status | Naturalized |
| Class of Worker | OT |
| 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 Thomas Duffy across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Thomas Duffy
Head · 1930 · age 44 · b. ~1886 · New York
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Kings, New York
Open full size
1930 US Federal Census — Kings, New York
Page Contents
50 people indexed on this census page (ia:1930:newyorkcensus00reel1505:0322)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Marius Skager | 32 | roomer | Painter | Norway |
| 2 | Iver Hall | 28 | roomer | Carpenter | Norway |
| 3 | Walter Johansen | 53 | head | None | Norway |
| 4 | Karen Johansen | 52 | wife | None | Norway |
| 5 | Thomas Duffy THIS PERSON | 44 | head | Bricklayer | Ireland |
| 6 | Bridget Duffy | 43 | wife | None | Ireland |
| 7 | James Duffy | 12 | son | None | Maryland |
| 8 | Agnes Duffy | 10 | daughter | None | Maryland |
| 9 | John F. Kennedy | 43 | head | Painter | New York |
| 10 | Clara A. Kennedy | 39 | wife | None | New York |
| 11 | John Kennedy | 15 | son | Messenger | New York |
| 12 | Arthur Kennedy | 13 | son | None | New York |
| 13 | Clara Kennedy | 11 | daughter | None | New York |
| 14 | Ruth Kennedy | 9 | daughter | None | New York |
| 15 | George Kennedy | 8 | son | None | New York |
| 16 | Frank Kennedy | 6 | son | None | New York |
| 17 | Barbara Kennedy | 5 | daughter | None | New York |
| 18 | Marilyn Kennedy | 3 | daughter | None | New York |
| 19 | Catherine Kennedy | 1 | daughter | None | New York |
| 20 | James Vanderth | 43 | head | None | New York |
| 21 | Anna Vanderth | 41 | wife | Dressmaker | New York |
| 22 | James Vanderth | 19 | son | Clerk | New York |
| 23 | William Vanderth | 11 | son | None | New York |
| 24 | Anton Larsen | 41 | head | Carpenter | Norway |
| 25 | Victoria Larsen | 41 | wife | None | Norway |
| 26 | Margaret Larsen | 15 | daughter | None | New York |
| 27 | Elizabeth Larsen | 14 | daughter | None | New York |
| 28 | Anton Larsen | 11 | son | None | New York |
| 29 | Oscar Larsen | 9 | son | None | New York |
| 30 | Agnes Larsen | 25 | wife | None | Norway |
| 31 | William Larsen | 41 | head | Bookkeeper | New York |
| 32 | Katherine Larsen | 36 | wife | None | New York |
| 33 | Kathleen Larsen | 9 | daughter | None | New York |
| 34 | Barbara Larsen | 8 | daughter | None | New York |
| 35 | Lillian Larsen | 5 | daughter | None | New York |
| 36 | Edward Peters | 29 | head | Salesman | New York |
| 37 | Imogene Peters | 30 | wife | None | New York |
| 38 | Edward Jr. Peters | 5 | son | None | New York |
| 39 | Regina Peters | 3 | daughter | None | New York |
| 40 | George Lagos | 33 | head | Prop. | Greece |
| 41 | Evangeline Lagos | 20 | wife | None | Conn. |
| 42 | George Hartig | 46 | head | Bookkeeper | New York |
| 43 | Amelia Hartig | 40 | wife | None | New York |
| 44 | William Hartig | 44 | head | Electrician | New York |
| 45 | Catherine Hartig | 42 | wife | None | Ireland |
| 46 | Frederick Hartig | 15 | son | Teller | New York |
| 47 | Richard Hartig | 12 | son | Statistician | New York |
| 48 | Louis Scaramozza | 43 | head | Laborer | Italy |
| 49 | Teresa Scaramozza | 33 | wife | None | Italy |
| 50 | John Scaramozza | 5 | son | None | New York |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)