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James Dugan — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Norfolk-County, Massachusetts
Our Model Tree links this James Dugan across the 1930 and 1940 US Censuses in Norfolk-County, Massachusetts (XGBoost, ~Confirmed) — first a son (b.~1924), then head of a 9-person household.
Age 16
b. ~1924
Male
Son
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Norfolk-County, Massachusetts |
| Surname | Dugan |
| Given Name | James J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Brookline |
| 1935 Residence (County) | Norfolk |
| Additional Details | |
| Occupation | Attendant |
| Industry | Gas Station |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 116 |
| Highest Grade | No 1 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Attendant |
| Township / Ward | Brookline |
| Est. Birth Year | ~1924 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| Alice Dugan | Daughter | — | 22 | ~1918 |
| Laura Dugan | Spouse | — | 41 | ~1899 |
| Arthur Dugan | Son | — | 25 | ~1915 |
| Frank Dugan | Son | — | 19 | ~1921 |
| Joan Dugan | Other | — | 2 | ~1938 |
| Maurice Dugan | Head | — | 46 | ~1894 |
| James Dugan | Son | — | 16 | ~1924 |
| Esther Dugan | Daughter | — | 25 | ~1915 |
| Laura Dugan | Other | — | 5 | ~1935 |
Census Appearances
1930
Suffolk, Massachusetts
Son, age 6
Suffolk, Massachusetts · implied b. ~1924 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Duggan |
| Given Name | James J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Norfolk-County, Massachusetts
Son, age 16
Norfolk-County, Massachusetts · implied b. ~1924 — 9 household members
| Surname | Dugan |
| Given Name | James J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Brookline |
| 1935 Residence (County) | Norfolk |
| Occupation | Attendant |
| Industry | Gas Station |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 116 |
| Highest Grade | No 1 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
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 James Dugan across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
James Dugan
Son · 1940 · age 16 · b. ~1924 · Massachusetts
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Sibling
Esther Dugan
Sibling · 1940 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Frank Dugan
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Arthur Dugan
Sibling · 1940 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alice Dugan
Sibling · 1940 · age 22
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
1940 US Federal Census — Norfolk-County, Massachusetts
Open full size
1940 US Federal Census — Norfolk-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01626-00083)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Neil A. Mcdermid | 35 | Head | Tree Surgeon | Canada |
| 2 | Villena Mcdermid | 38 | Wife | — | Canada |
| 3 | Kenneth N. Mcdermid | 7 | Son | — | Massachusetts |
| 4 | James Burke | 32 | Head | Laborer | Eire |
| 5 | Katherine Burke | 30 | Wife | — | Eire |
| 6 | James M. Burke | 5 | Son | — | Massachusetts |
| 7 | Mary T. Burke | 4 | Daughter | — | Massachusetts |
| 8 | John F. Burke | 3 | Son | — | Massachusetts |
| 9 | Maurice E. Dugan | 46 | Head | Foreman | Massachusetts |
| 10 | Laura F. Dugan | 41 | Wife | — | Massachusetts |
| 11 | Esther Belanger Dugan | 25 | Daughter | Nurse | Massachusetts |
| 12 | Alice Harris Dugan | 22 | Daughter | Waitress | Massachusetts |
| 13 | Frank Dugan | 19 | Son | — | Massachusetts |
| 14 | James J. Dugan THIS PERSON | 16 | Son | Attendant | Massachusetts |
| 15 | Arthur Dugan | 25 | Son | — | Massachusetts |
| 16 | Laura Belanger Dugan | 5 | Child | — | Massachusetts |
| 17 | Joan Harris Dugan | 2 | Child | — | Massachusetts |
| 18 | John F. Cunningham | 53 | Head | Laborer | England |
| 19 | Agnes Cunningham | 45 | Wife | — | Massachusetts |
| 20 | John P. Cunningham | 19 | Son | — | Connecticut |
| 21 | Joseph P. Cunningham | 17 | Son | — | Massachusetts |
| 22 | Leo Cunningham | 15 | Son | — | Massachusetts |
| 23 | Edward Cunningham | 8 | Son | — | Massachusetts |
| 24 | Eleanor A. Cunningham | 18 | Daughter | — | Massachusetts |
| 25 | Louise Cunningham | 14 | Daughter | — | Massachusetts |
| 26 | Mary Cunningham | 9 | Daughter | — | Massachusetts |
| 27 | Frances Cunningham | 6 | Daughter | — | Massachusetts |
| 28 | Daniel J. Hennessy | 53 | Head | Gardner | Massachusetts |
| 29 | Annie E. Hennessy | 54 | Wife | — | Canada |
| 30 | Marion L. Hennessy | 16 | Daughter | — | Massachusetts |
| 31 | Anita J. Hennessy | 11 | Daughter | — | Massachusetts |
| 32 | Daniel John Jr. Hennessy | 17 | Son | — | Massachusetts |
| 33 | Catherine Mccarthy | 55 | Head | House Work | Eire |
| 34 | Joseph C. Mccarthy | 27 | Son | — | Massachusetts |
| 35 | John R. Mccarthy | 25 | Son | — | Massachusetts |
| 36 | Rose M. Mccarthy | 18 | Daughter | — | Massachusetts |
| 37 | John J. Hoara | 46 | Head | Painter | Massachusetts |
| 38 | Annabelle A. Hoara | 40 | Wife | Saleslady | Maine |
| 39 | Alice A. Hoara | 19 | Daughter | — | Massachusetts |
| 40 | Gertrude S. Hoara | 17 | Daughter | — | Massachusetts |
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)