WD
William Duffy — 1900 US Census Record
Linked across censuses1900 United States Federal Census · Phila, Pennsylvania
Our Model Tree links this William Duffy across the 1900, 1910 and 1920 US Censuses in Phila, Pennsylvania (XGBoost, ~Confirmed) — first a head (b.~1859), then head of a 6-person household.
Age 41
b. ~1859
Male
Head
Born: Ireland
Married
1900 Census Record Details
| Census Year | 1900 |
| Location | Phila, Pennsylvania |
| Surname | Duffy |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Ireland |
| Birth Month | May |
| Birth Year | 1859 |
| Year of Immigration | 1880 |
| Naturalization Status | First papers filed |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Additional Details | |
| Occupation | Upholsterer |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
| Occupation | Upholsterer |
| Township / Ward | Phila |
| Est. Birth Year | ~1859 |
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 1900 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Mary Duffy | Spouse | — | 39 | ~1861 |
| Anna Duffy | Daughter | — | 20 | ~1880 |
| Hannah Harrington | Other | — | 70 | ~1830 |
| William Duffy | Head | — | 41 | ~1859 |
| Daniel Duffy | Son | — | 16 | ~1884 |
| Daniel Harrington | Other | — | 35 | ~1865 |
Census Appearances
1900
Phila, Pennsylvania
Head, age 41
Phila, Pennsylvania · implied b. ~1859 — 6 household members
| Surname | Duffy |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Ireland |
| Birth Month | May |
| Birth Year | 1859 |
| Year of Immigration | 1880 |
| Naturalization Status | First papers filed |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Upholsterer |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1910
Philadelphia, Pennsylvania
Head, age 50
Philadelphia, Pennsylvania · implied b. ~1860 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Duffey |
| Given Name | Wm |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | Ireland |
| Years Married | 27 |
| Year of Immigration | 1880 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Upholsterer |
| Industry | Upholsterer |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1920
Philadelphia, Pennsylvania
Head, age 58
Philadelphia, Pennsylvania · implied b. ~1862 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Duffey |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 58 |
| Marital Status | Married |
| Birthplace | Ireland |
| Year of Immigration | 1880 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Birth Country | Ireland |
| Year of Naturalization | 1890 |
| 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 William Duffy across 3 US Census years (1900, 1910 and 1920) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
William Duffy
Head · 1900 · age 41 · b. ~1859 · Pennsylvania
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1900 US Federal Census — Phila, Pennsylvania
Open full size
1900 US Federal Census — Phila, Pennsylvania
Page Contents
50 people indexed on this census page (ia:1900:12thcensusofpopu1468unit:0026)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Gertrude Donahue | 20 | Boarder | Dressmaker | Penna |
| 2 | William Schultz | 27 | Head | Butcher | Penna |
| 3 | Anna Schultz | 36 | Wife | — | Penna |
| 4 | George Schultz | 1 | Son | — | Penna |
| 5 | Amos Linderman | 13 | Boarder | At School | Penna |
| 6 | Tom W Linderman | 49 | Boarder | Florist | Penna |
| 7 | Rosana Kolb | 63 | Head | — | Germany |
| 8 | Chas H Kolb | 38 | Son | Wood Worker | Penna |
| 9 | William Duffy THIS PERSON | 40 | Head | Upholsterer | Ireland |
| 10 | Mary Duffy | 39 | Wife | — | Penna |
| 11 | Anna Duffy | 19 | Daughter | Saleslady | Penna |
| 12 | Daniel Duffy | 16 | Son | Printer | Penna |
| 13 | Hannah Harrington | 70 | Mother in law | — | Ireland |
| 14 | Daniel Harrington | 35 | Brother in law | Newsdealer | Penna |
| 15 | Bella Todd | 37 | Head | — | Penna |
| 16 | Chas W Todd | 9 | Son | At School | Penna |
| 17 | Joseph P Todd | 4 | Son | — | Penna |
| 18 | Henry Ochofelsky | 15 | Boarder | Type Foundry | Penna |
| 19 | Kate Corson | 47 | Head | Bookbinder | Penna |
| 20 | Mary Corson | 22 | Daughter | Bookbinder | Penna |
| 21 | Nathan S Corson | 14 | Son | At School | Penna |
| 22 | Raymond Corson | 4 | Son | — | Penna |
| 23 | James Hart | 37 | Head | Sailor | Ireland |
| 24 | Mary Hart | 28 | Wife | — | Penna |
| 25 | Helen Hart | 1 | Daughter | — | Penna |
| 26 | Susie Corson | 11 | Daughter | At School | Penna |
| 27 | Albert Anderson | 27 | Boarder | Newsdealer | Penna |
| 28 | Aloysius Mchenry | 35 | Head | Upholsterer | Penna |
| 29 | Sallie Mchenry | 27 | Wife | — | Penna |
| 30 | Elizabeth Mchenry | 1 | Daughter | — | Penna |
| 31 | John Carey | 38 | Head | Hostler | Ireland |
| 32 | Bridget Carey | 37 | Wife | — | Ireland |
| 33 | Richard Boggs | 29 | Head | Salesman | Penna |
| 34 | Elizabeth Boggs | 26 | Wife | — | Penna |
| 35 | William Boggs | 6 | Son | — | Penna |
| 36 | Charles Boggs | 3 | Son | — | Penna |
| 37 | Elizabeth Boggs | 1 | Daughter | — | Penna |
| 38 | John Klages | 58 | Head | Cigarmaker | Germany |
| 39 | Eliza Klages | 47 | Wife | — | Penna |
| 40 | Anna Klages | 21 | Daughter | Cigar Maker | Penna |
| 41 | Thomas Moran | 50 | Head | Grocer | Ireland |
| 42 | Rose Moran | 25 | Daughter | — | Penna |
| 43 | Bridget Moran | 21 | Daughter | — | Penna |
| 44 | George Schmitt | 43 | Head | Plate Printer | Penna |
| 45 | Sarah Schmitt | 33 | Wife | — | Penna |
| 46 | Sarah Boyer | 20 | Servant | Servant | Delaware |
| 47 | James Barth | 45 | Head | Conveyancer | Penna |
| 48 | Emma W Barth | 42 | Wife | — | Penna |
| 49 | Jane M Barth | 72 | Mother | — | Ireland |
| 50 | Mary J Barth | 46 | Sister | — | Penna |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1900 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)