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William Lyon — 1900 US Census Record
Linked across censuses1900 United States Federal Census · Middlesex, Massachusetts
Our Model Tree links this William Lyon across the 1900 and 1910 US Censuses in Middlesex, Massachusetts (XGBoost, ~Confirmed) — first a son (b.~1884), then head of a 9-person household.
Age 16
b. ~1884
Male
Son
Born: Massachusetts
Single
1900 Census Record Details
| Census Year | 1900 |
| Location | Middlesex, Massachusetts |
| Surname | Lyon |
| Given Name | William R. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Birth Month | July |
| Birth Year | 1884 |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Additional Details | |
| Occupation | At School |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | At School |
| Township / Ward | Watertown Town |
| Est. Birth Year | ~1884 |
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.
9 people recorded at the same address in the 1900 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Nellie Lyon | Daughter | — | 27 | ~1873 |
| Mary Lyon | Daughter | — | 29 | ~1871 |
| Elizabeth Lyon | Spouse | — | 49 | ~1851 |
| Margaret Mahoney | Other | — | 40 | ~1860 |
| William Lyon | Son | — | 22 | ~1878 |
| Francis Lyon | Daughter | — | 11 | ~1889 |
| William Lyon | Son | — | 16 | ~1884 |
| Michael Lyon | Head | — | 54 | ~1846 |
| Thomas Lyon | Son | — | 22 | ~1878 |
Census Appearances
1900
Middlesex, Massachusetts
Son, age 16
Middlesex, Massachusetts · implied b. ~1884 — 9 household members
| Surname | Lyon |
| Given Name | William R. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Birth Month | July |
| Birth Year | 1884 |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Occupation | At School |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1910
Middlesex, Massachusetts
Son, age 27
Middlesex, Massachusetts · implied b. ~1883 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lyons |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Widowed |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Occupation | Pressman |
| Industry | Book Bindery |
| 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 William Lyon across 2 US Census years (1900 and 1910) in Middlesex, Massachusetts, using XGBoost record linkage.
Show:
This person
Anchor record
William Lyon
Son · 1900 · age 16 · b. ~1884 · Massachusetts
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Sibling
Francis Lyon
Sibling · 1900 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas Lyon
Sibling · 1900 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Lyon
Sibling · 1900 · age 29
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Lyon
Sibling · 1900 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Nellie Lyon
Sibling · 1900 · age 27
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:1900:12thcensusofpopu667unit:0795)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Mary Dallaire | 50 | Wife | — | Ireland |
| 52 | Joseph Dallaire | 11 | Son | At School | Massachusetts |
| 53 | Edward Gavin | 33 | Boarder | Day Laborer | Canada (Eng) |
| 54 | Eugene Linehan | 26 | Boarder | Blacksmith | Ireland |
| 55 | Daniel B. Shea | 28 | Boarder | Barber | Ireland |
| 56 | Theresa Sheridan | 24 | Boarder | — | New Hampshire |
| 57 | Patrick J. Aung | 35 | Head | Laborer Carp. Shop | Ireland |
| 58 | Mary Aung | 78 | Sister | — | Ireland |
| 59 | James Mulhearn | 32 | Head | Pressman (Paper Mill) | Ireland |
| 60 | Maria Mulhearn | 27 | Wife | — | Ireland |
| 61 | Mary D. Mulhearn | 0 | Daughter | — | Massachusetts |
| 62 | Mary Shanahan | 72 | Head | — | Ireland |
| 63 | Catherine Splaine | 53 | Head | — | Ireland |
| 64 | Catherine Splaine | 29 | Daughter | Laundress | Massachusetts |
| 65 | Richard Splaine | 27 | Son | Student | Massachusetts |
| 66 | Michael H. O'Halloran | 39 | Head | Teamster | Massachusetts |
| 67 | Catherine M. O'Halloran | 35 | Wife | — | Ireland |
| 68 | Mary T. O'Halloran | 9 | Daughter | At School | Massachusetts |
| 69 | William J. O'Halloran | 8 | Son | At School | Massachusetts |
| 70 | John M. O'Halloran | 5 | Son | At School | Massachusetts |
| 71 | Raymond J. O'Halloran | 2 | Son | — | Massachusetts |
| 72 | Michael H. Lyon | 53 | Head | Iron Molder | Massachusetts |
| 73 | Elizabeth M. Lyon | 49 | Wife | — | Massachusetts |
| 74 | Mary E. Lyon | 29 | Daughter | Clerk Tel. Office | Massachusetts |
| 75 | Nellie F. Lyon | 26 | Daughter | Laundress | Massachusetts |
| 76 | William J. Lyon | 21 | Son | Meat Cutter | Massachusetts |
| 77 | Thomas F. Lyon | 21 | Son | Meat Cutter | Massachusetts |
| 78 | William R. Lyon THIS PERSON | 15 | Son | At School | Massachusetts |
| 79 | Francis A. Lyon | 11 | Daughter | At School | Massachusetts |
| 80 | Margaret C. Mahoney | 39 | Boarder | Laundress | Massachusetts |
| 81 | Patrick Maloney | 27 | Head | Laborer Foundry | Ireland |
| 82 | Maria Maloney | 26 | Wife | — | Ireland |
| 83 | Annie Maloney | 4 | Daughter | — | Massachusetts |
| 84 | Mollie Maloney | 0 | Daughter | — | Massachusetts |
| 85 | John H. J. Holt | 50 | Head | Engineer Fire Dept | New Hampshire |
| 86 | Lizzie J. Holt | 46 | Wife | — | Massachusetts |
| 87 | Lottie B. Holt | 26 | Daughter | — | Massachusetts |
| 88 | Arthur G. Cannon | 26 | Boarder | Nickel Plater Foundry | Massachusetts |
| 89 | Samuel Bennett | 36 | Head | Teamster | Canada (Eng) |
| 90 | Lulu Bennett | 32 | Wife | — | Canada (Eng) |
| 91 | Maud E. Bennett | 3 | Daughter | — | Massachusetts |
| 92 | Alma J. Martin | 64 | Mother-in-law | — | New York |
| 93 | Michael Kenney | 28 | Boarder | Paper Maker | Ireland |
| 94 | Nelson Hamilton | 27 | Boarder | Carpenter | Maine |
| 95 | Joseph H. Lively | 44 | Head | Grocer | Massachusetts |
| 96 | Sarah Lively | 35 | Wife | — | Canada (Eng) |
| 97 | Elizabeth M. Lively | 1 | Daughter | — | Massachusetts |
| 98 | Timothy Riorden | 48 | Boarder | Boot & Shoe Repairer | Ireland |
| 99 | Rose Mcdonald | 64 | Servant | Servant | Canada (Eng) |
| 100 | Joseph Boucher | 33 | Head | Physician | 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)