JD
John Duggan — 1940 US Census Record
Model Tree available1940 United States Federal Census · Providence-County, Rhode Island
Our Model Tree links this John Duggan across the 1920, 1930 and 1940 US Censuses in Providence-County, Rhode Island (XGBoost, ~Confirmed), with identified parents Margaret & Mary — first a head (b.~1893), then head of a 5-person household.
Age 47
b. ~1893
Male
Head
Born: Rhode Island
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Providence-County, Rhode Island |
| Surname | Duggan |
| Given Name | John E. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 47 |
| Marital Status | Married |
| Birthplace | Rhode Island |
| 1935 Residence (City) | Providence |
| 1935 Residence (County) | Providence |
| Additional Details | |
| Occupation | cost accountant |
| Industry | pipe manufacturing |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 2600 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Rhode Island |
| Birth Country | United States |
| Birthplace (normalized) | rhode island |
| Occupation | Cost Accountant |
| Township / Ward | Providence |
| Est. Birth Year | ~1893 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| John Duggan | Son | — | 10 | ~1930 |
| Sara Duggan | Spouse | — | 43 | ~1897 |
| John Duggan | Head | — | 47 | ~1893 |
| Theresa Duggan | Daughter | — | 15 | ~1925 |
| Infant Conlon | Daughter | — | ~1940 |
Census Appearances
1920
Providence, Rhode …
Son, age 26
Providence, Rhode Island · implied b. ~1894 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Dugan |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Rhode Island |
| Father's Birthplace | Rhode Island |
| Mother's Birthplace | Rhode Island |
| Occupation | Reg. Clerk |
| Industry | Wetting Co |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Rhode Island |
| Birth Country | United States |
| Birthplace (normalized) | rhode island |
Son, age 36
Providence, Rhode Island · implied b. ~1894 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Dugan |
| Given Name | John F. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 36 |
| Marital Status | Single |
| Birthplace | Rhode Island |
| Father's Birthplace | Rhode Island |
| Mother's Birthplace | Ohio |
| Occupation | Weaver |
| Industry | Woolen Mill |
| Class of Worker | W |
| Can Read/Write | No |
| Veteran | Yes |
| Birth State | Rhode Island |
| Birth Country | United States |
| Birthplace (normalized) | rhode island |
1940
Providence-County, Rhode …
Head, age 47
Providence-County, Rhode Island · implied b. ~1893 — 5 household members
| Surname | Duggan |
| Given Name | John E. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 47 |
| Marital Status | Married |
| Birthplace | Rhode Island |
| 1935 Residence (City) | Providence |
| 1935 Residence (County) | Providence |
| Occupation | cost accountant |
| Industry | pipe manufacturing |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 2600 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Rhode Island |
| Birth Country | United States |
| Birthplace (normalized) | rhode island |
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. Identified parents: mother Margaret Dugan (~0.92 confidence) and mother Mary Dugan (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Margaret Dugan
b. ~1860
Source mother
● Household
· direct · ~0.92
Mother
Mary Dugan
b. ~1858
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Duggan
Head · 1940 · age 47 · b. ~1893 · Rhode Island
★ 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 — Providence-County, Rhode Island
Open full size
1940 US Federal Census — Providence-County, Rhode Island
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03778-00778)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Mccarthy | None | — | — | — |
| 42 | Otto Zeboska | 42 | Head | Toolmaker | Germany |
| 43 | Johanna Zeboska | 39 | Wife | — | Germany |
| 44 | Fritz Zeboska | 20 | Son | — | Germany |
| 45 | — | None | — | — | — |
| 46 | Edith Oxley | 41 | Head | — | England |
| 47 | Edith S. Oxley | 21 | Daughter | Typist | Rhode Island |
| 48 | — | None | — | — | — |
| 49 | Frederick Gannon | 39 | Head | Janitor | Rhode Island |
| 50 | Ruth Gannon | 37 | Wife | — | Rhode Island |
| 51 | Arthur Gannon | 13 | Son | — | Rhode Island |
| 52 | Eleanor Gannon | 9 | Daughter | — | Rhode Island |
| 53 | Frederick Jr. Gannon | 7 | Son | — | Rhode Island |
| 54 | — | None | — | — | — |
| 55 | Andrew Bourbon | 32 | Head | Purchasing Agent | Rhode Island |
| 56 | Florence Bourbon | 31 | Wife | — | Rhode Island |
| 57 | Barbara A. Bourbon | 1 | Daughter | — | Rhode Island |
| 58 | John E. Duggan THIS PERSON | 47 | Head | Cost Accountant | Rhode Island |
| 59 | Sara V. Duggan | 43 | Wife | — | Rhode Island |
| 60 | Theresa Duggan | 15 | Daughter | — | Rhode Island |
| 61 | John J. Jr. Duggan | 10 | Son | — | Rhode Island |
| 62 | — | None | — | — | — |
| 63 | Infant Conlon | 0 | Daughter | — | Rhode Island |
| 64 | — | None | — | — | — |
| 65 | Robert Burns | 31 | Head | Repairman | Rhode Island |
| 66 | Edna Burns | 28 | Wife | — | Rhode Island |
| 67 | Katherine Burns | 10 | Daughter | — | Rhode Island |
| 68 | Edna Burns | 9 | Daughter | — | Rhode Island |
| 69 | Robert Jr. Burns | 8 | Son | — | Rhode Island |
| 70 | Alfred Cohen | 45 | Head | Messenger Boy | Texas |
| 71 | Ella Cohen | 44 | Wife | — | Texas |
| 72 | — | None | — | — | — |
| 73 | John W. Brown | 45 | Head | Janitor | Rhode Island |
| 74 | Esther S. Brown | 44 | Wife | — | New Jersey |
| 75 | Barbara Brown | 16 | Daughter | — | Rhode Island |
| 76 | John W. Jr. Brown | 14 | Son | — | Rhode Island |
| 77 | — | None | — | — | — |
| 78 | James A. Jr. Healy | 27 | Head | Truck Driver | Rhode Island |
| 79 | Mary A. Healy | 24 | Wife | Hairdresser | Rhode Island |
| 80 | James D. Healy | 0 | Son | — | Rhode Island |
Related Census Records
Pedigree Summary
John
Gen 1 · 2 parents
~0.92
Max depth 4 (1900–1950 window)
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)