JD
John Duggan — 1930 US Census Record
Linked across censuses1930 United States Federal Census · New York, New York
Our Model Tree links this John Duggan across the 1930 and 1940 US Censuses in New York, New York (XGBoost, ~Confirmed) — first a son (b.~1905), then head of a 7-person household.
Age 25
b. ~1905
Male
Son
Born: New York
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | New York, New York |
| Surname | Duggan |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | Irish Free State |
| Mother's Birthplace | Irish Free State |
| Additional Details | |
| Occupation | Clerk |
| Industry | Grocer |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
| Occupation | Clerk |
| Township / Ward | New York City |
| Est. Birth Year | ~1905 |
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.
7 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| John Duggan | Son | — | 25 | ~1905 |
| James Duggan | Head | — | 60 | ~1870 |
| James Duggan | Son | — | 27 | ~1903 |
| Mary Duggan | Son | — | 18 | ~1912 |
| John Duggan | Daughter | — | 34 | ~1896 |
| Estelle Duggan | Daughter | — | 23 | ~1907 |
| Elizabeth Duggan | Daughter | — | 21 | ~1909 |
Census Appearances
1930
New York, …
Son, age 25
New York, New York · implied b. ~1905 — 7 household members
| Surname | Duggan |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | Irish Free State |
| Mother's Birthplace | Irish Free State |
| Occupation | Clerk |
| Industry | Grocer |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1940
New-York-County, New …
Son, age 35
New-York-County, New York · implied b. ~1905 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Dugan |
| Given Name | John A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (City) | New York City |
| 1935 Residence (County) | New York |
| Occupation | Traveling Salesman |
| Industry | Wholesale Grocery |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 2600 |
| Highest Grade | Hs 4 |
| 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 John Duggan across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Duggan
Son · 1930 · age 25 · b. ~1905 · New York
★ You are viewing this record
Sibling
James Duggan
Sibling · 1930 · age 27
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Duggan
Sibling · 1930 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Elizabeth Duggan
Sibling · 1930 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Estelle Duggan
Sibling · 1930 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Duggan
Sibling · 1930 · age 34
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
1930 US Federal Census — New York, New York
Open full size
1930 US Federal Census — New York, New York
Page Contents
50 people indexed on this census page (ia:1930:newyorkcensus00reel1581:0753)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John J. Hill | 35 | Head | Superintendent | South Carolina |
| 2 | Ella Hill | 30 | Wife | — | Maryland |
| 3 | Frank Patterson | 16 | Boarder | — | Maryland |
| 4 | Joseph L. Young | 54 | Head | Porter | Virginia |
| 5 | Mary L. Young | 45 | Wife | — | Virginia |
| 6 | Fred Young | 23 | Son | Printer | Virginia |
| 7 | William Harvey | 49 | Head | Lather | New York |
| 8 | Mabel Harvey | 46 | Wife | — | New Jersey |
| 9 | Elizabeth Harvey | 22 | Daughter | Typist | New York |
| 10 | Henry Kubsin | 52 | Head | Salesman | Poland |
| 11 | Tillie Kubsin | 49 | Wife | — | Poland |
| 12 | Alvin Kubsin | 23 | Son | Clerk | Pennsylvania |
| 13 | Eva Kubsin | 21 | Daughter | Bookkeeper | Pennsylvania |
| 14 | Irene Kubsin | 19 | Daughter | Stenographer | Pennsylvania |
| 15 | Jerome Kubsin | 17 | Son | Helper | Pennsylvania |
| 16 | Ruth Kubsin | 14 | Daughter | — | Pennsylvania |
| 17 | Julius Turetsky | 65 | Head | Tinsmith | Russia |
| 18 | Rose Turetsky | 52 | Wife | — | Russia |
| 19 | Louis Turetsky | 26 | Son | Tower Watchman | England |
| 20 | John Masterson | 31 | Head | Mechanic | New York |
| 21 | Florence Masterson | 27 | Wife | — | New York |
| 22 | Norma Masterson | 8 | Daughter | — | New York |
| 23 | Wesley Masterson | 4 | Son | — | New York |
| 24 | Gregory Masterson | 2 | Son | — | New York |
| 25 | Charles W. Hart | 37 | Head | Letter Carrier | Illinois |
| 26 | Grace M. Hart | 38 | Wife | — | New York |
| 27 | Dorothy R. Hart | 16 | Daughter | — | New York |
| 28 | Paul R. Hart | 12 | Son | — | New York |
| 29 | Francis X. Hart | 3 | Son | — | New York |
| 30 | Arthur M. Valentine | 25 | Brother-in-law | — | New York |
| 31 | Edward Shellman | 50 | Head | Foreman | Pennsylvania |
| 32 | Gertrude Shellman | 29 | Daughter | Bookkeeper | Pennsylvania |
| 33 | Margaret Shellman | 21 | Daughter | — | New York |
| 34 | George Shellman | 20 | Son | — | New York |
| 35 | Isabelle Sweeney | 55 | Head | — | Pennsylvania |
| 36 | Ignatius Sweeney | 22 | Son | Laborer | Pennsylvania |
| 37 | Michael Sullivan | 30 | Lodger | Laborer | Ireland |
| 38 | Ray Milligan | 27 | Lodger | Laborer | Pennsylvania |
| 39 | James A. Duggan | 60 | Head | Clerk | Irish Free State |
| 40 | James Duggan | 27 | Son | Chauffeur | New York |
| 41 | John Duggan THIS PERSON | 25 | Son | Clerk | New York |
| 42 | Estelle Duggan | 23 | Daughter | Operator | New York |
| 43 | Elizabeth Duggan | 21 | Daughter | Operator | New York |
| 44 | Mary Duggan | 18 | Son | — | New York |
| 45 | John Duggan | 34 | Daughter | — | New York |
| 46 | Vincent Riley | 28 | Head | Manager | New York |
| 47 | Ethel Riley | 22 | Wife | — | New York |
| 48 | Theodore Vogel | 60 | Head | Chef | Germany |
| 49 | Leontine Vogel | 53 | Wife | — | Austria |
| 50 | Alfred Vogel | 25 | Son | Salesman | 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)