MD
Mary Duggan — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Bristol, Massachusetts
Our Model Tree links this Mary Duggan across the 1920 and 1930 US Censuses in Bristol, Massachusetts (XGBoost, ~Confirmed) — first a daughter (b.~1915), then head of a 7-person household.
Age 15
b. ~1915
Female
Daughter
Born: Massachusetts
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Bristol, Massachusetts |
| Surname | Duggan |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | Fall River City |
| Est. Birth Year | ~1915 |
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 Mary | Age | Birth yr |
|---|---|---|---|---|
| Annie Duggan | Daughter | — | 19 | ~1911 |
| Joseph Duggan | Son | — | 13 | ~1917 |
| John Duggan | Son | — | 14 | ~1916 |
| Katherine Duggan | Daughter | — | 10 | ~1920 |
| Mary Duggan | Daughter | — | 15 | ~1915 |
| Annie Duggan | Spouse | — | 48 | ~1882 |
| Thomas Duggan | Head | — | 51 | ~1879 |
Census Appearances
1920
Bristol, Massachusetts
Daughter, age 5
Bristol, Massachusetts · implied b. ~1915 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Duggan |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Can Read | Yes |
| Speaks English | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Bristol, Massachusetts
Daughter, age 15
Bristol, Massachusetts · implied b. ~1915 — 7 household members
| Surname | Duggan |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| 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 |
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 Mary Duggan across 2 US Census years (1920 and 1930) in Bristol, Massachusetts, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Duggan
Daughter · 1930 · age 15 · b. ~1915 · Massachusetts
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Sibling
Katherine Duggan
Sibling · 1930 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Duggan
Sibling · 1930 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Duggan
Sibling · 1930 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Annie Duggan
Sibling · 1930 · age 19
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 — Bristol, Massachusetts
Open full size
1930 US Federal Census — Bristol, Massachusetts
Page Contents
50 people indexed on this census page (ia:1930:massachusettscensus00reel888:0872)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Yvonne Madore | 6 | Daughter | — | Massachusetts |
| 52 | Doris Madore | 4 | Daughter | — | Massachusetts |
| 53 | Joseph S. Beauparland | 60 | Head | Physician | Canada French |
| 54 | Josephine Beauparland | 58 | Wife | — | Canada French |
| 55 | Adolphe Paille | 48 | Head | Helper Tender | Canada French |
| 56 | George E. Paille | 9 | Son | — | Massachusetts |
| 57 | Ariel Beaulieu | 12 | Friend | — | Massachusetts |
| 58 | Mabel Beaulieu | 11 | Friend | — | Massachusetts |
| 59 | Vitaline Beaulieu | 74 | Mother | Housekeeper | Canada French |
| 60 | Wilfred Garant | 38 | Head | Loom Fixer | Massachusetts |
| 61 | Yvonne Garant | 36 | Wife | Weaver | Canada French |
| 62 | Laura Garant | 17 | Daughter | Housekeeper | Massachusetts |
| 63 | Florida Garant | 15 | Daughter | — | Massachusetts |
| 64 | Wilfred Garant | 13 | Son | — | Massachusetts |
| 65 | Robert Garant | 11 | Son | — | Massachusetts |
| 66 | Bertha Garant | 5 | Daughter | — | Massachusetts |
| 67 | Lucy Garant | 3 | Daughter | — | Massachusetts |
| 68 | Doris Garant | 0 | Daughter | — | Massachusetts |
| 69 | Fabien Blais | 46 | Head | Weaver | Canada French |
| 70 | Merilda Blais | 41 | Wife | — | Rhode Island |
| 71 | Leo Blais | 17 | Son | Weaver | Massachusetts |
| 72 | Henry Blais | 15 | Son | — | Massachusetts |
| 73 | Omer Blais | 14 | Son | — | Massachusetts |
| 74 | Albert Blais | 12 | Son | — | Massachusetts |
| 75 | Roger Blais | 7 | Son | — | Massachusetts |
| 76 | Thomas J. Duggan | 51 | Head | Fireman | Massachusetts |
| 77 | Annie S. Duggan | 48 | Wife | — | Massachusetts |
| 78 | Annie Duggan | 19 | Daughter | — | Massachusetts |
| 79 | Mary Duggan THIS PERSON | 15 | Daughter | — | Massachusetts |
| 80 | Joseph Duggan | 13 | Son | — | Massachusetts |
| 81 | John Duggan | 14 | Son | — | Massachusetts |
| 82 | Katherine Duggan | 10 | Daughter | — | Massachusetts |
| 83 | Antonie Pietruszka | 50 | Head | Mule Tender | Poland |
| 84 | Julia Pietruszka | 42 | Wife | — | Poland |
| 85 | John Pietruszka | 24 | Son | Weaver | Massachusetts |
| 86 | Stanley Pietruszka | 21 | Son | Sub Carrier | Massachusetts |
| 87 | Walter Pietruszka | 19 | Son | Clerk | Massachusetts |
| 88 | Benjamin Pietruszka | 17 | Son | Clerk | Massachusetts |
| 89 | William Sullivan | 66 | Head | Laborer | Massachusetts |
| 90 | Hannah M. Sullivan | 62 | Wife | — | Missouri |
| 91 | Ellen S. Sullivan | 34 | Daughter | Inspector | Massachusetts |
| 92 | Agnes M. Sullivan | 27 | Daughter | Clerk | Massachusetts |
| 93 | Lena Poisson | 46 | Head | Helper Tender | Massachusetts |
| 94 | Alice Poisson | 16 | Daughter | Helper Tender | Massachusetts |
| 95 | Ernest Poisson | 13 | Son | — | Massachusetts |
| 96 | Addie Phout | 39 | Sister | — | Massachusetts |
| 97 | Louis Garon | 47 | Head | Loom Fixer | Canada French |
| 98 | Adele Garon | 42 | Wife | — | Canada French |
| 99 | Rene Garon | 20 | Son | Weaver | Massachusetts |
| 100 | Ida Garon | 17 | Daughter | — | Massachusetts |
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)