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William Willis — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Suffolk-County, Massachusetts
Our Model Tree links this William Willis across the 1930 and 1940 US Censuses in Suffolk-County, Massachusetts (XGBoost, ~Confirmed) — first a son (b.~1926), then head of a 7-person household.
Age 14
b. ~1926
Male
Son
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Suffolk-County, Massachusetts |
| Surname | Willis |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston City |
| 1935 Residence (County) | Suffolk |
| Additional Details | |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | Boston City |
| Est. Birth Year | ~1926 |
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 |
|---|---|---|---|---|
| Sadie Willis | Daughter | — | 17 | ~1923 |
| William Willis | Son | — | 14 | ~1926 |
| William Willis | Head | — | 48 | ~1892 |
| Sadie Willis | Spouse | — | 44 | ~1896 |
| Helen Willis | Daughter | — | 9 | ~1931 |
| Winifred Willis | Daughter | — | 19 | ~1921 |
| Edna Willis | Daughter | — | 15 | ~1925 |
Census Appearances
1930
Suffolk, Massachusetts
Son, age 4
Suffolk, Massachusetts · implied b. ~1926 — 13 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Willis |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | English Canada |
| Mother's Birthplace | Newfoundland |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Suffolk-County, Massachusetts
Son, age 14
Suffolk-County, Massachusetts · implied b. ~1926 — 7 household members
| Surname | Willis |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston City |
| 1935 Residence (County) | Suffolk |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| 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 Willis across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
William Willis
Son · 1940 · age 14 · b. ~1926 · Massachusetts
★ You are viewing this record
Sibling
Sadie Willis
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Winifred Willis
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edna Willis
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Helen Willis
Sibling · 1940 · age 9
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
1940 US Federal Census — Suffolk-County, Massachusetts
Open full size
1940 US Federal Census — Suffolk-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01663-00919)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Bessie Mrs. Allen | 70 | Head | Housewife | Massachusetts |
| 42 | Frederick Dawson | 54 | Hand | Butler | England |
| 43 | Ethel Baker | 42 | Hand | Housework | England |
| 44 | Stanley Melvin | 20 | Hand | Domestic | Massachusetts |
| 45 | Mary J. Jones | 55 | Hand | Maid | England |
| 46 | Mary Mallison | 52 | Hand | Lady'S Maid | Scotland |
| 47 | F. E. Mercier | 60 | Hand | Cook | France |
| 48 | Frances Hanley | 36 | Hand | Cook | France |
| 49 | Theresa L. Meehan | 60 | Head | Housewife | Massachusetts |
| 50 | Mary E. Pennell | 34 | Head | Secretary | Maine |
| 51 | Catherine Hutchinson | 58 | Hand | Cook | Ireland |
| 52 | Edwin J. Cunningham | 68 | Head | — | Iowa |
| 53 | Minnie Coyle | 57 | Hand | Housekeeper | Massachusetts |
| 54 | Catherine Sullivan | 54 | Hand | Domestic | Ireland |
| 55 | Mary Malloy | 59 | Hand | Cook | Ireland |
| 56 | Mary L. Bush | 81 | Head | — | New York |
| 57 | Phyllis Robbins | 57 | Head | — | Massachusetts |
| 58 | Theresa H. Robbins | 72 | Daughter | — | Massachusetts |
| 59 | Theresa R. Robbins | 26 | Daughter | — | Massachusetts |
| 60 | Delia Manning | 55 | Head | Cook | Ireland |
| 61 | Susan D. Mckelvey | 57 | Sister | Domestic | Pennsylvania |
| 62 | Mary Linkerace | 26 | Hand | Domestic | Massachusetts |
| 63 | M. Shields | 60 | Head | — | Massachusetts |
| 64 | Margaret Elwood | 65 | Hand | — | Massachusetts |
| 65 | David E. Cluney | 71 | Husband | Retired | Newfoundland |
| 66 | Annie Rouse | 47 | Hand | Housekeeper | New Hampshire |
| 67 | William Willis | 48 | Head | Janitor | Canada |
| 68 | Sadie Willis | 44 | Wife | — | Newfoundland |
| 69 | Winifred Willis | 19 | Daughter | — | Massachusetts |
| 70 | Sadie Marie Willis | 17 | Daughter | — | Massachusetts |
| 71 | Edna Willis | 15 | Daughter | — | Massachusetts |
| 72 | William Willis THIS PERSON | 14 | Son | — | Massachusetts |
| 73 | Helen Willis | 9 | Daughter | — | Massachusetts |
| 74 | Franklin D. Hobbs | 70 | Head | Merchant | Massachusetts |
| 75 | Jane L. Hobbs | 68 | Wife | Housewife | Massachusetts |
| 76 | Rebekah Hobbs | 37 | Daughter | Secretary | Massachusetts |
| 77 | Ellen Quake | 37 | Hand | Ladies Maid | Finland |
| 78 | Margaret Griffler | 50 | Hand | Waitress | Sweden |
| 79 | Olga Lundsted | 46 | Hand | Cook | Finland |
| 80 | Elizabeth Stone | 50 | Head | Nurse | Delaware |
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)