JD
John Duggan — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Bronx-County, New York
Our Model Tree links this John Duggan across the 1920, 1930 and 1940 US Censuses in Bronx-County, New York (XGBoost, ~Confirmed) — first a head (b.~1881), then head of a 3-person household.
Age 59
b. ~1881
Male
Head
Born: Ireland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Bronx-County, New York |
| Surname | Duggan |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 59 |
| Marital Status | Married |
| Birthplace | Ireland |
| 1935 Residence (City) | New York City |
| 1935 Residence (County) | Bronx |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Policeman |
| Industry | N.Y.C. |
| Class of Worker | GW |
| Hours Worked | 48 |
| Income (1939) | 3000 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
| Occupation | Policeman |
| Township / Ward | New York City |
| Est. Birth Year | ~1881 |
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 |
|---|---|---|---|---|
| Kathleen Duggan | Daughter | — | 22 | ~1918 |
| Teresa Duggan | Spouse | — | 58 | ~1882 |
| John Duggan | Head | — | 59 | ~1881 |
Census Appearances
1920
New York, …
Head, age 40
New York, New York · implied b. ~1880 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Dugan |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Ireland |
| Year of Immigration | 1906 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Checker |
| Industry | Am Rail Exp Co |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Birth Country | Ireland |
| Year of Naturalization | 1912 |
| Birthplace (normalized) | ireland |
Head, age 50
New York, New York · implied b. ~1880 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Dugan |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | Ireland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1905 |
| Age at First Marriage | 21 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Manager |
| Industry | Theatre |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Home Value / Rent | 75 |
| Radio Set | R |
| Veteran | No |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1940
Bronx-County, New …
Head, age 59
Bronx-County, New York · implied b. ~1881 — 3 household members
| Surname | Duggan |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 59 |
| Marital Status | Married |
| Birthplace | Ireland |
| 1935 Residence (City) | New York City |
| 1935 Residence (County) | Bronx |
| Naturalization Status | Naturalized |
| Occupation | Policeman |
| Industry | N.Y.C. |
| Class of Worker | GW |
| Hours Worked | 48 |
| Income (1939) | 3000 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| 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 Duggan 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 Duggan
Head · 1940 · age 59 · b. ~1881 · 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 — Bronx-County, New York
Open full size
1940 US Federal Census — Bronx-County, New York
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02487-00017)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Frank Heurmann | 50 | Head | Laundryman | Italy |
| 42 | Peter Heurmann | 61 | Head | Laundryman | China |
| 43 | Peter Heurmann | 52 | Head | — | Alaska |
| 44 | George Heurmann | 30 | Head | Clerk | Russia |
| 45 | Sonia Heurmann | 28 | Wife | — | Russia |
| 46 | Sarah Heurmann | 53 | Mother-in-law | — | Russia |
| 47 | Pearl Heurmann | 26 | Sister-in-law | — | Russia |
| 48 | Anne Jackel | 29 | Sister-in-law | Clerk | New York |
| 49 | Marvin Cochran | 26 | Head | Counterman | New York |
| 50 | Margaret Cochran | 23 | Wife | — | New York |
| 51 | Marvin Cochran | 2 | Son | — | New York |
| 52 | John Fitzgerald | 20 | Brother-in-law | Stock Clerk | New York |
| 53 | John Healy | 63 | Head | Fruit Man | New York |
| 54 | Domenic Melin | 42 | Brother-in-law | Rigger | New York |
| 55 | Bertha Melin | 29 | Sister | — | New York |
| 56 | Evelyn Melin | 2 | Daughter | — | New York |
| 57 | William Fordham | 53 | Head | — | New York |
| 58 | James A. Fordham | 71 | Head | — | New York |
| 59 | Adeline Fordham | 68 | Wife | — | New York |
| 60 | William A. Fordham | 45 | Son | Lawyer | New York |
| 61 | Nelson Fordham | 18 | Grandson | — | New York |
| 62 | Ben Freeburg | 43 | Head | Teacher | New York |
| 63 | Mathilda Freeburg | 43 | Wife | — | New York |
| 64 | John Alexander | 47 | Head | Lunch Wagon | Greece |
| 65 | Angeline Alexander | 30 | Wife | — | Greece |
| 66 | Aristotle Alexander | 6 | Son | — | New York |
| 67 | Helen Alexander | 4 | Daughter | — | New York |
| 68 | Mary Alexander | 2 | Daughter | — | New York |
| 69 | Louis Douras | 58 | Head | Hat Cleaner | Greece |
| 70 | Helen Douras | 52 | Wife | — | Greece |
| 71 | John Duggan THIS PERSON | 59 | Head | Policeman | Ireland |
| 72 | Teresa Duggan | 58 | Wife | — | Ireland |
| 73 | Kathleen Duggan | 22 | Daughter | Clerk | New York |
| 74 | Henry Keaney | 37 | Head | Fish Dealer | Ireland |
| 75 | Rose Keaney | 28 | Wife | — | Russia |
| 76 | Gerald Keaney | 11 | Son | — | New York |
| 77 | Morton Keaney | 7 | Son | — | New York |
| 78 | Paul Keaney | 3 | Son | — | New York |
| 79 | Mary Prout | 71 | Head | — | New York |
| 80 | Almira Ketcham | 71 | Sister | — | New York |
Related Census Records
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)