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William Lyons — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this William Lyons across the 1920, 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed) — first a head (b.~1897), then head of a 7-person household.
Age 43
b. ~1897
Male
Head
Born: Newfoundland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Lyons |
| Given Name | William T. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | Newfoundland |
| 1935 Residence (City) | Medford City |
| 1935 Residence (County) | Middlesex |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Riveter |
| Industry | Construction |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1500 |
| Highest Grade | No 8 |
| 1935 Residence | Same House |
| Birth Country | Canada |
| Birthplace (normalized) | newfoundland |
| Occupation | Riveter |
| Township / Ward | Medford City |
| Est. Birth Year | ~1897 |
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 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Gertrude Lyons | Daughter | — | 9 | ~1931 |
| Katherine Lyons | Daughter | — | 13 | ~1927 |
| Ethel Lyons | Daughter | — | 15 | ~1925 |
| Marjorie Lyons | Daughter | — | 10 | ~1930 |
| William Lyons | Head | — | 43 | ~1897 |
| William Lyons | Son | — | 19 | ~1921 |
| Katherine Lyons | Spouse | — | 46 | ~1894 |
Census Appearances
1920
Suffolk, Massachusetts
Other, age 24
Suffolk, Massachusetts · implied b. ~1896 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lyons |
| Given Name | William J. |
| Relationship to Head | Brother-in-law |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Newfoundland |
| Year of Immigration | 1915 |
| Naturalization Status | First papers filed |
| Father's Birthplace | Newfoundland |
| Mother's Birthplace | Newfoundland |
| Occupation | Carpenter |
| Industry | Bldg. contr. |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth Country | Canada |
| Birthplace (normalized) | newfoundland |
1930
Middlesex, Massachusetts
Head, age 33
Middlesex, Massachusetts · implied b. ~1897 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lyons |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Newfoundland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1915 |
| Age at First Marriage | 24 |
| Father's Birthplace | Newfoundland |
| Mother's Birthplace | Newfoundland |
| Occupation | Iron Worker |
| Industry | Construction |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Home Owned/Rented | O |
| Home Value / Rent | 3000 |
| Radio Set | R |
| Veteran | Yes |
| Birth Country | Canada |
| Birthplace (normalized) | newfoundland |
1940
Middlesex-County, Massachusetts
Head, age 43
Middlesex-County, Massachusetts · implied b. ~1897 — 7 household members
| Surname | Lyons |
| Given Name | William T. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | Newfoundland |
| 1935 Residence (City) | Medford City |
| 1935 Residence (County) | Middlesex |
| Naturalization Status | Naturalized |
| Occupation | Riveter |
| Industry | Construction |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1500 |
| Highest Grade | No 8 |
| 1935 Residence | Same House |
| Birth Country | Canada |
| Birthplace (normalized) | newfoundland |
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 Lyons across 3 US Census years (1920, 1930 and 1940) in 3 locations, using XGBoost record linkage.
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This person
Anchor record
William Lyons
Head · 1940 · age 43 · b. ~1897 · Massachusetts
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Middlesex-County, Massachusetts
Open full size
1940 US Federal Census — Middlesex-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01611-00211)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Robert G. Mann | 13 | Son | — | Massachusetts |
| 42 | George A. Mann | 4 | Son | — | Massachusetts |
| 43 | Donald N. Mann | 6 | Son | — | Massachusetts |
| 44 | Maurice B. Collins | 34 | Head | Salesman | Maine |
| 45 | Alice Collins | 34 | Wife | Saleswoman | Connecticut |
| 46 | Myles Collins | 5 | Son | — | Massachusetts |
| 47 | Dean Collins | 5 | Son | — | Massachusetts |
| 48 | Eric Gerouard | 39 | Head | Truck Driver | New Brunswick |
| 49 | Mildred Gerouard | 35 | Wife | Saleswoman | New Brunswick |
| 50 | Delores Gerouard | 12 | Daughter | — | New York |
| 51 | Carol A. Gerouard | 3 | Daughter | — | Massachusetts |
| 52 | Robert Kubrick | 40 | Head | Ship Machinist | Pennsylvania |
| 53 | Bernice Kubrick | 44 | Wife | Saleswoman | Maine |
| 54 | Robert Jr. Kubrick | 10 | Son | — | Massachusetts |
| 55 | Bernice Kubrick | 1 | Daughter | — | Massachusetts |
| 56 | Alphonse Martin | 52 | Head | Insurance Salesman | Massachusetts |
| 57 | Mary E. Martin | 51 | Wife | Saleswoman | Massachusetts |
| 58 | George K. Martin | 19 | Son | Salesman | Massachusetts |
| 59 | William T. Lyons THIS PERSON | 43 | Head | Riveter | Newfoundland |
| 60 | Katherine Lyons | 46 | Wife | Saleswoman | Newfoundland |
| 61 | William N. Lyons | 19 | Son | Bank Messenger | Massachusetts |
| 62 | Ethel Lyons | 15 | Daughter | Saleswoman | Massachusetts |
| 63 | Katherine Lyons | 13 | Daughter | — | Massachusetts |
| 64 | Marjorie Lyons | 10 | Daughter | — | Massachusetts |
| 65 | Gertrude Lyons | 9 | Daughter | — | Massachusetts |
| 66 | Donald Hamilton | 40 | Head | Ship Machinist | Maine |
| 67 | Jessie Hamilton | 43 | Wife | Saleswoman | Canada English |
| 68 | Donald Jr. Hamilton | 10 | Son | — | Massachusetts |
| 69 | Marjorie Hamilton | 8 | Daughter | — | Massachusetts |
| 70 | Charles Hamilton | 6 | Son | — | Massachusetts |
| 71 | Robert Costello | 42 | Head | Shipper | Massachusetts |
| 72 | Agnes Costello | 41 | Wife | Saleswoman | Massachusetts |
| 73 | Frank Walters | 64 | Head | Steam Fitter | England |
| 74 | Bessie Walters | 56 | Wife | Saleswoman | England |
| 75 | William Walters | 23 | Son | Steam Fitter | Massachusetts |
| 76 | Kenneth Walters | 19 | Son | Salesman | Massachusetts |
| 77 | Robert Walters | 17 | Son | Salesman | Massachusetts |
| 78 | Muriel Walters | 16 | Daughter | Saleswoman | Massachusetts |
| 79 | Sidney Lipton | 24 | Head | Salesman | Massachusetts |
| 80 | Dorothea Lipton | 25 | Wife | Saleswoman | Massachusetts |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1940 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)