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William Healy — 1900 US Census Record
Linked across censuses1900 United States Federal Census · Middlesex, Massachusetts
Our Model Tree links this William Healy across the 1900 and 1910 US Censuses in Middlesex, Massachusetts (XGBoost, ~Confirmed) — first a son (b.~1888), then head of a 7-person household.
Age 12
b. ~1888
Male
Son
Born: Ireland
Single
1900 Census Record Details
| Census Year | 1900 |
| Location | Middlesex, Massachusetts |
| Surname | Healy |
| Given Name | William J |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Ireland |
| Birth Month | May |
| Birth Year | 1888 |
| Year of Immigration | 1885 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Additional Details | |
| Occupation | At school |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
| Occupation | At School |
| Township / Ward | Newton City |
| Est. Birth Year | ~1888 |
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 1900 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Catherine Healy | Spouse | — | 36 | ~1864 |
| Daniel Healy | Son | — | 16 | ~1884 |
| Hannah Healy | Daughter | — | 15 | ~1885 |
| John Healy | Head | — | 38 | ~1862 |
| Ellen Healy | Daughter | — | 4 | ~1896 |
| William Healy | Son | — | 12 | ~1888 |
| Patrick Healy | Son | — | 1 | ~1899 |
Census Appearances
1900
Middlesex, Massachusetts
Son, age 12
Middlesex, Massachusetts · implied b. ~1888 — 7 household members
| Surname | Healy |
| Given Name | William J |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Ireland |
| Birth Month | May |
| Birth Year | 1888 |
| Year of Immigration | 1885 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | At school |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1910
Middlesex, Massachusetts
Son, age 21
Middlesex, Massachusetts · implied b. ~1889 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Healey |
| Given Name | William J |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Ireland |
| Year of Immigration | 1885 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Salesman |
| Industry | Oil Business |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth Country | Ireland |
| 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 Healy across 2 US Census years (1900 and 1910) in Middlesex, Massachusetts, using XGBoost record linkage.
Show:
This person
Anchor record
William Healy
Son · 1900 · age 12 · b. ~1888 · Massachusetts
★ You are viewing this record
Sibling
Daniel Healy
Sibling · 1900 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Hannah Healy
Sibling · 1900 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Patrick Healy
Sibling · 1900 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ellen Healy
Sibling · 1900 · age 4
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
1900 US Federal Census — Middlesex, Massachusetts
Open full size
1900 US Federal Census — Middlesex, Massachusetts
Page Contents
50 people indexed on this census page (ia:1900:12thcensusofpopu664unit:0443)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | James Donlon | 47 | Head | Day Laborer | Ireland |
| 52 | Bridget Donlon | 54 | Wife | — | Ireland |
| 53 | Thomas E Donlon | 29 | Son | Cotton-Mill | Massachusetts |
| 54 | Kate Donlon | 15 | Daughter | At School | Massachusetts |
| 55 | James Donlon | 14 | Son | At School | Massachusetts |
| 56 | Lilly V Donlon | 12 | Daughter | At School | Massachusetts |
| 57 | John J Healy | 38 | Head | Paper Polisher | Ireland |
| 58 | Catherine Healy | 36 | Wife | — | Ireland |
| 59 | Daniel Healy | 15 | Son | At School | Ireland |
| 60 | Hannah M Healy | 14 | Daughter | Weaver-Mill | Ireland |
| 61 | William J Healy THIS PERSON | 12 | Son | At School | Ireland |
| 62 | Ellen J Healy | 3 | Daughter | — | Massachusetts |
| 63 | Patrick J Healy | 1 | Son | — | Massachusetts |
| 64 | Joseph Seremetzky | 35 | Head | Dyer-Mill | Poland (Aust) |
| 65 | Annie Seremetzky | 39 | Wife | — | Poland (Aust) |
| 66 | Mary Seremetzky | 11 | Daughter | At School | Poland (Aust) |
| 67 | Justine Boyle | 34 | Boarder | Dyer-Mill | Poland (Aust) |
| 68 | Stanislaus Dabrowski | 29 | Boarder | Laborer-Mill | Poland (Aust) |
| 69 | Henry Smielski | 30 | Boarder | Laborer-Mill | Poland (Aust) |
| 70 | Stephen Smielski | 26 | Boarder | Laborer-Mill | Poland (Aust) |
| 71 | Michael Gorski | 28 | Boarder | Dyer-Mill | Poland (Aust) |
| 72 | Frank Yaremko | 22 | Boarder | Quill Laborer | Poland (Russ) |
| 73 | Alexander Yaremko | 34 | Boarder | Quill Laborer | Poland (Russ) |
| 74 | Thomas Farrell | 42 | Head | Day Laborer | Massachusetts |
| 75 | Maria Farrell | 39 | Wife | — | Canada (Eng) |
| 76 | Daisy E Farrell | 18 | Daughter | Finisher-Mill | Massachusetts |
| 77 | Jennie L Farrell | 15 | Daughter | Stamper-Mill | Massachusetts |
| 78 | Annie L Farrell | 13 | Daughter | At School | Massachusetts |
| 79 | Lauretta Farrell | 2 | Daughter | — | Massachusetts |
| 80 | Joseph Thompson | 34 | Head | Coachman | Canada (Eng) |
| 81 | Esther Thompson | 28 | Wife | — | Canada (Eng) |
| 82 | Mary E Thompson | 7 | Daughter | — | Massachusetts |
| 83 | John J Thompson | 5 | Son | — | Massachusetts |
| 84 | Phillip H Thompson | 3 | Son | — | Massachusetts |
| 85 | Frank E Thompson | 0 | Son | — | Massachusetts |
| 86 | James Long | 33 | Boarder | Day Laborer | Canada (Eng) |
| 87 | Jesse Dougherty | 22 | Boarder | Teamster | Maine |
| 88 | Patrick J Dunn | 44 | Head | Carder | Ireland |
| 89 | Sabina T Dunn | 32 | Wife | — | England |
| 90 | James Dunn | 12 | Son | At School | England |
| 91 | John W Dunn | 7 | Son | — | Massachusetts |
| 92 | Sabina Dunn | 3 | Daughter | — | Massachusetts |
| 93 | Rosa A Tippy | 48 | Boarder | Quill-Picker | England |
| 94 | George Bakeman | 62 | Boarder | Buckster | Massachusetts |
| 95 | William Humphreys | 52 | Head | Carpenter | North Carolina |
| 96 | Julia A Humphreys | 52 | Wife | Dressmaker | North Carolina |
| 97 | John Donnelly | 27 | Head | Coachman | Canada (Fr) |
| 98 | Margaret Donnelly | 38 | Wife | — | Canada (Fr) |
| 99 | Riley B Donnelly | 0 | Daughter | — | Massachusetts |
| 100 | Lucy Donnelly | 18 | Sister | Servant | Canada (Fr) |
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)