MD
Mary Duggan — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Worcester, Massachusetts
Our Model Tree links this Mary Duggan across the 1910 and 1920 US Censuses in Worcester, Massachusetts (XGBoost, ~Confirmed) — first a spouse (b.~1865), then head of a 6-person household.
Age 55
b. ~1865
Female
Spouse
Born: Maine
Married
1920 Census Record Details
| Census Year | 1920 |
| Location | Worcester, Massachusetts |
| Surname | Duggan |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 55 |
| Marital Status | Married |
| Birthplace | Maine |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Additional Details | |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Maine |
| Birth Country | United States |
| Birthplace (normalized) | maine |
| Township / Ward | City Of Worcester |
| Est. Birth Year | ~1865 |
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.
6 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Duggan | Daughter | — | 17 | ~1903 |
| Mary Duggan | Spouse | — | 55 | ~1865 |
| Daniel Duggan | Head | — | 58 | ~1862 |
| Walter Duggan | Son | — | 21 | ~1899 |
| Arthur Duggan | Son | — | 19 | ~1901 |
| Edward Duggan | Son | — | 13 | ~1907 |
Census Appearances
1910
Worcester, Massachusetts
Spouse, age 47
Worcester, Massachusetts · implied b. ~1863 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Duggan |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 47 |
| Marital Status | Married |
| Birthplace | Maine |
| Years Married | 16 |
| Children Born | 6 |
| Children Living | 1 |
| Father's Birthplace | Ire English |
| Mother's Birthplace | Ire English |
| Birth State | Maine |
| Birth Country | United States |
| Birthplace (normalized) | maine |
1920
Worcester, Massachusetts
Spouse, age 55
Worcester, Massachusetts · implied b. ~1865 — 6 household members
| Surname | Duggan |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 55 |
| Marital Status | Married |
| Birthplace | Maine |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Maine |
| Birth Country | United States |
| Birthplace (normalized) | maine |
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 (1910 and 1920) in Worcester, Massachusetts, using XGBoost record linkage.
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This person
Anchor record
Mary Duggan
Spouse · 1920 · age 55 · b. ~1865 · Massachusetts
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1920 US Federal Census — Worcester, Massachusetts
Open full size
1920 US Federal Census — Worcester, Massachusetts
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu751unit:0208)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Frederick J. Oakes | 29 | Son | Weaver | New York |
| 2 | Clarence Oakes | 22 | Son | Manager | New York |
| 3 | George B. Oakes | 14 | Son | — | Rhode Island |
| 4 | William Jordan | 69 | Boarder | Weaver | England |
| 5 | Richard E. Flynn | 52 | Head | Teamster | Massachusetts |
| 6 | Annie M. Flynn | 52 | Wife | — | Massachusetts |
| 7 | Mae G. Flynn | 29 | Daughter | Bookkeeper | Massachusetts |
| 8 | Laurie A. Flynn | 26 | Daughter | Bookkeeper | Massachusetts |
| 9 | Margaret R. Flynn | 21 | Daughter | Stenographer | Massachusetts |
| 10 | Helen C. Flynn | 17 | Daughter | Stenographer | Massachusetts |
| 11 | Richard F. Flynn | 14 | Son | — | Massachusetts |
| 12 | Francis J. Cove | 24 | Son-in-law | Weaver | Massachusetts |
| 13 | Christine C. Cove | 23 | Daughter | — | Massachusetts |
| 14 | James A. Laurie | 39 | Brother-in-law | Electrician | Massachusetts |
| 15 | Daniel Duggan | 58 | Head | Pressman | Ireland |
| 16 | Mary Duggan THIS PERSON | 55 | Wife | — | Maine |
| 17 | Walter D. Duggan | 21 | Son | — | Massachusetts |
| 18 | Arthur H. Duggan | 19 | Son | — | Massachusetts |
| 19 | Mary G. Duggan | 17 | Daughter | — | Massachusetts |
| 20 | Edward J. Duggan | 13 | Son | — | Massachusetts |
| 21 | Henry A. | 42 | Head | Fireman | Massachusetts |
| 22 | Catherine | 39 | Wife | — | Massachusetts |
| 23 | Frederick W. | 12 | Son | — | Massachusetts |
| 24 | Mary E. | 8 | Daughter | — | Massachusetts |
| 25 | Catherine | 5 | Daughter | — | Massachusetts |
| 26 | Galston Tripp | 47 | Head | Doctor | Maine |
| 27 | Mary L. Tripp | 45 | Wife | — | Massachusetts |
| 28 | Alston E. Tripp | 16 | Son | — | Massachusetts |
| 29 | Robert H. Tripp | 14 | Son | — | Massachusetts |
| 30 | Paul W. Tripp | 11 | Son | — | Massachusetts |
| 31 | Jeremiah Gilfoil | 67 | Head | Clerical Work | Massachusetts |
| 32 | Margaret D. Gilfoil | 57 | Wife | — | Massachusetts |
| 33 | Elizabeth A. Gilfoil | 21 | Daughter | Stitcher | Massachusetts |
| 34 | Mary A. Gilfoil | 20 | Daughter | Stitcher | Massachusetts |
| 35 | Joseph W. Hinchcliff | 54 | Head | — | Massachusetts |
| 36 | Margaret Hinchcliff | 49 | Wife | — | Ireland |
| 37 | Philip J. Alfrey | 47 | Head | Mason | England |
| 38 | Louisa E. Alfrey | 46 | Wife | — | England |
| 39 | Charles E. Alfrey | 21 | Son | Helper | England |
| 40 | Philip J. Jr. Alfrey | 19 | Son | Mason | England |
| 41 | Emily M. Alfrey | 12 | Daughter | — | England |
| 42 | Donald J. Alfrey | 7 | Son | — | England |
| 43 | Harry J. Alfrey | 23 | Son | Fireman | England |
| 44 | Edith E. Alfrey | 25 | Daughter-in-law | — | England |
| 45 | Lottie J. Harris | 25 | Boarder | — | England |
| 46 | Alfred W. Harris | 27 | Boarder | Machinist | England |
| 47 | Lottie H. Thayer | 71 | Head | — | Massachusetts |
| 48 | Charlotte J. Thayer | 40 | Daughter | — | Massachusetts |
| 49 | Mary P. Thayer | 33 | Daughter | Instructor | Massachusetts |
| 50 | Edward C. Thayer | 26 | Son | Lawyer | Massachusetts |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1920 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)