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John Duggan — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Essex-County, Massachusetts
Our Model Tree links this John Duggan across the 1930 and 1940 US Censuses in Essex-County, Massachusetts (XGBoost, ~Confirmed) — first a head (b.~1876), then head of a 11-person household.
Age 64
b. ~1876
Male
Head
Born: Irish Free State
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Essex-County, Massachusetts |
| Surname | Duggan |
| Given Name | John J |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 64 |
| Marital Status | Married |
| Birthplace | Irish Free State |
| 1935 Residence (City) | Methuen |
| Naturalization Status | Naturalized |
| Additional Details | |
| Highest Grade | No 8 |
| Birthplace (normalized) | irish free state |
| Township / Ward | Methuen |
| Est. Birth Year | ~1876 |
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.
11 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Emma Duggan | Daughter | — | 23 | ~1917 |
| Katherine Duggan | Daughter | — | 32 | ~1908 |
| Florence Duggan | Daughter | — | 20 | ~1920 |
| Bertha Duggan | Daughter | — | 25 | ~1915 |
| John Duggan | Head | — | 64 | ~1876 |
| Julia Duggan | Daughter | — | 33 | ~1907 |
| Anna Duggan | Spouse | — | 63 | ~1877 |
| Rita Duggan | Daughter | — | 30 | ~1910 |
| Evelyn Duggan | Daughter | — | 18 | ~1922 |
| James Duggan | Son | — | 27 | ~1913 |
| Anna Duggan | Daughter | — | 32 | ~1908 |
Census Appearances
1930
Essex, Massachusetts
Head, age 55
Essex, Massachusetts · implied b. ~1875 — 14 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Duggan |
| Given Name | John J. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 55 |
| Marital Status | Married |
| Birthplace | Irish Free State |
| Naturalization Status | Naturalized |
| Year of Immigration | 1882 |
| Age at First Marriage | 27 |
| Father's Birthplace | Irish Free State |
| Mother's Birthplace | Irish Free State |
| Occupation | Plasterer |
| Industry | General Business |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Home Value / Rent | 36 |
| Radio Set | R |
| Veteran | No |
| Birthplace (normalized) | irish free state |
1940
Essex-County, Massachusetts
Head, age 64
Essex-County, Massachusetts · implied b. ~1876 — 11 household members
| Surname | Duggan |
| Given Name | John J |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 64 |
| Marital Status | Married |
| Birthplace | Irish Free State |
| 1935 Residence (City) | Methuen |
| Naturalization Status | Naturalized |
| Highest Grade | No 8 |
| Birthplace (normalized) | irish free state |
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.
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This person
Anchor record
John Duggan
Head · 1940 · age 64 · b. ~1876 · Massachusetts
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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 — Essex-County, Massachusetts
Open full size
1940 US Federal Census — Essex-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01586-00466)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Anna Cohen | 56 | Wife | — | Russia |
| 2 | Lewis Cohen | 38 | Son | Bookkeeper | Russia |
| 3 | Gertrude Cohen | 28 | Daughter | Marker | Massachusetts |
| 4 | Jeanne Cohen | 25 | Daughter | Marker | Massachusetts |
| 5 | Maurice L Simon | 27 | Head | Manager | Rhode Island |
| 6 | Marcia L Simon | 27 | Wife | — | Massachusetts |
| 7 | Christopher T Dover | 62 | Head | Superintendent | England |
| 8 | Christina Dover | 62 | Wife | — | Massachusetts |
| 9 | Beatrice M Dover | 37 | Daughter | Office Clerk | Massachusetts |
| 10 | James R Thompson | 52 | Head | Overseer | Massachusetts |
| 11 | Mary N Q Thompson | 51 | Wife | — | England |
| 12 | James A Thompson | 20 | Son | — | Massachusetts |
| 13 | John J Duggan THIS PERSON | 64 | Head | — | Irish Free State |
| 14 | Anna M Duggan | 63 | Wife | — | Irish Free State |
| 15 | Julia C Duggan | 33 | Daughter | — | Massachusetts |
| 16 | Anna M Duggan | 32 | Daughter | Beamer | Massachusetts |
| 17 | Katherine A Duggan | 32 | Daughter | Beamer | Massachusetts |
| 18 | Rita F Duggan | 30 | Daughter | Mender | Massachusetts |
| 19 | James A Duggan | 27 | Son | Shipper | Massachusetts |
| 20 | Bertha M Duggan | 25 | Daughter | Splicer | Massachusetts |
| 21 | Emma C Duggan | 23 | Daughter | Office Clerk | Massachusetts |
| 22 | Florence V Duggan | 20 | Daughter | Splicer | Massachusetts |
| 23 | Evelyn N Duggan | 18 | Daughter | Salesgirl | Massachusetts |
| 24 | Thomas R Palmer | 41 | Head | Office Clerk | Maine |
| 25 | Ruth S Palmer | 42 | Wife | — | Massachusetts |
| 26 | Syrena Palmer | 65 | Mother | — | Maine |
| 27 | George Crates | 39 | Head | Superintendent | Massachusetts |
| 28 | Irene M Crates | 39 | Wife | — | Massachusetts |
| 29 | Diana J Crates | 6 | Daughter | — | Massachusetts |
| 30 | Victor Curtin | 48 | Head | Dentist | Massachusetts |
| 31 | Kathryn J Curtin | 45 | Wife | — | Massachusetts |
| 32 | Jane E Curtin | 15 | Daughter | — | Massachusetts |
| 33 | Victor T Curtin | 14 | Son | — | Massachusetts |
| 34 | Max Bott | 26 | Head | Proprietor | Maine |
| 35 | Dorothy Bott | 22 | Wife | — | Massachusetts |
| 36 | Joseph G Dewan | 30 | Head | Proprietor | Syria |
| 37 | Irene V Dewan | 30 | Wife | — | Connecticut |
| 38 | Edward W Najim | 23 | Brother-in-law | Insurance Clerk | Connecticut |
| 39 | Jeanette C Najim | 17 | Sister-in-law | — | Connecticut |
| 40 | Harold L Mellion | 39 | Head | Manager | Rhode Island |
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)