MD
Margaret Duffy — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Essex, Massachusetts
Our Model Tree links this Margaret Duffy across the 1910 and 1920 US Censuses in Essex, Massachusetts (XGBoost, ~Confirmed) — first a spouse (b.~1876), then head of a 13-person household.
Age 44
b. ~1876
Female
Spouse
Born: Ireland
Married
1920 Census Record Details
| Census Year | 1920 |
| Location | Essex, Massachusetts |
| Surname | Duffy |
| Given Name | Margaret |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Ireland |
| Year of Immigration | 1892 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Additional Details | |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth Country | Ireland |
| Year of Naturalization | 1901 |
| Birthplace (normalized) | ireland |
| Township / Ward | North Andover Town |
| 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.
13 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to Margaret | Age | Birth yr |
|---|---|---|---|---|
| Margaret Duffy | Daughter | — | 18 | ~1902 |
| Margaret Duffy | Spouse | — | 44 | ~1876 |
| Joseph Duffy | Son | — | 7 | ~1913 |
| Alice Duffy | Daughter | — | 5 | ~1915 |
| John Duffy | Head | — | 46 | ~1874 |
| Martha Duffy | Daughter | — | 17 | ~1903 |
| Thomas Duffy | Son | — | 14 | ~1906 |
| George Duffy | Son | — | 9 | ~1911 |
| Agnes Duffy | Daughter | — | 12 | ~1908 |
| John Duffy | Son | — | 15 | ~1905 |
| Catherine Duffy | Daughter | — | 11 | ~1909 |
| Thomas Duffy | Other | — | 50 | ~1870 |
| Mary Duffy | Daughter | — | 13 | ~1907 |
Census Appearances
1910
Essex, Massachusetts
Spouse, age 35
Essex, Massachusetts · implied b. ~1875 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Duffy |
| Given Name | Margaret |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Ireland |
| Years Married | 15 |
| Children Born | 9 |
| Children Living | 7 |
| Year of Immigration | 1884 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1920
Essex, Massachusetts
Spouse, age 44
Essex, Massachusetts · implied b. ~1876 — 13 household members
| Surname | Duffy |
| Given Name | Margaret |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Ireland |
| Year of Immigration | 1892 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth Country | Ireland |
| Year of Naturalization | 1901 |
| Birthplace (normalized) | ireland |
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 Margaret Duffy across 2 US Census years (1910 and 1920) in Essex, Massachusetts, using XGBoost record linkage.
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This person
Anchor record
Margaret Duffy
Spouse · 1920 · age 44 · b. ~1876 · 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 — Essex, Massachusetts
Open full size
1920 US Federal Census — Essex, Massachusetts
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu696unit:0045)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Alfred H Etchells | 40 | Head | Mason | England |
| 52 | Elizabeth Etchells | 38 | Wife | — | England |
| 53 | Alfred H Jr Etchells | 11 | Son | — | Massachusetts |
| 54 | Constance Etchells | 9 | Daughter | — | Massachusetts |
| 55 | William H Etchells | 6 | Son | — | Massachusetts |
| 56 | Jane Etchells | 4 | Daughter | — | Massachusetts |
| 57 | James P Etchells | 1 | Son | — | Massachusetts |
| 58 | James Clement | 31 | Head | — | Scotland |
| 59 | Jane Clement | 30 | Wife | — | Scotland |
| 60 | Catherine Clement | 3 | Daughter | — | Scotland |
| 61 | Bella Clement | 2 | Daughter | — | Scotland |
| 62 | David Clement | 0 | Son | — | Scotland |
| 63 | Richard Ashworth | 46 | Head | Mender | England |
| 64 | Mary Ashworth | 48 | Wife | Weaver | England |
| 65 | James Ashworth | 22 | Son | — | England |
| 66 | Elizabeth Ashworth | 17 | Daughter | — | England |
| 67 | Alice Ashworth | 16 | Daughter | Inspector | England |
| 68 | Charles Ashworth | 10 | Son | — | England |
| 69 | John J Duffy | 46 | Head | Teamster | Ireland |
| 70 | Margaret Duffy THIS PERSON | 44 | Wife | — | Ireland |
| 71 | Margaret Duffy | 18 | Daughter | Mender | Massachusetts |
| 72 | Martha Duffy | 17 | Daughter | Weaver | Massachusetts |
| 73 | John Duffy | 15 | Son | — | Massachusetts |
| 74 | Thomas Duffy | 14 | Son | — | Massachusetts |
| 75 | Mary Duffy | 13 | Daughter | — | Massachusetts |
| 76 | Agnes Duffy | 12 | Daughter | — | Massachusetts |
| 77 | Catherine Duffy | 11 | Daughter | — | Massachusetts |
| 78 | George Duffy | 9 | Son | — | Massachusetts |
| 79 | Joseph Duffy | 7 | Son | — | Massachusetts |
| 80 | Alice Duffy | 5 | Daughter | — | Massachusetts |
| 81 | Thomas Duffy | 50 | Brother | — | Ireland |
| 82 | Julia Casey | 46 | Head | — | Massachusetts |
| 83 | Catherine Casey | 45 | Sister | — | Massachusetts |
| 84 | Agnes Casey | 43 | Sister | — | Massachusetts |
| 85 | Peter Scallon | 43 | Head | Gardener | Italy |
| 86 | Josephine Scallon | 34 | Wife | — | Italy |
| 87 | Joseph Scallon | 14 | Son | — | Massachusetts |
| 88 | Raymond Scallon | 12 | Son | — | Massachusetts |
| 89 | Enis Scallon | 11 | Daughter | — | Massachusetts |
| 90 | Margaret Scallon | 10 | Daughter | — | Massachusetts |
| 91 | Ida Scallon | 9 | Daughter | — | Massachusetts |
| 92 | Joseph M Hardy | 47 | Head | Second Hand | England |
| 93 | Mary Hardy | 40 | Wife | — | England |
| 94 | James Hardy | 26 | Son | — | Massachusetts |
| 95 | Barney Mcquirk | 20 | Boarder | Machinist | Massachusetts |
| 96 | Mary Mcquirk | 25 | Sister | — | Massachusetts |
| 97 | William Roberts | 32 | Head | Machinist | Massachusetts |
| 98 | Mary Roberts | 31 | Wife | — | Ireland |
| 99 | Helen M Roberts | 5 | Daughter | — | Massachusetts |
| 100 | Alice M Roberts | 1 | Daughter | — | 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)