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William Dennis — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Essex-County, Massachusetts
Our Model Tree links this William Dennis across the 1930 and 1940 US Censuses in Essex-County, Massachusetts (XGBoost, ~Confirmed) — first a son (b.~1929), then head of a 6-person household.
Age 11
b. ~1929
Male
Son
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Essex-County, Massachusetts |
| Surname | Dennis |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Lynn City |
| 1935 Residence (County) | Essex |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | No 5 |
| 1935 Residence | Same Place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | Lynn City |
| Est. Birth Year | ~1929 |
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 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Helen Dennis | Daughter | — | 14 | ~1926 |
| Philip Dennis | Son | — | 12 | ~1928 |
| Philip Mulligan | Other | — | 75 | ~1865 |
| John Dennis | Head | — | 48 | ~1892 |
| William Dennis | Son | — | 11 | ~1929 |
| Mary Dennis | Spouse | — | 47 | ~1893 |
Census Appearances
1930
Essex, Massachusetts
Son, age 1
Essex, Massachusetts · implied b. ~1929 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Dennis |
| Given Name | William A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Essex-County, Massachusetts
Son, age 11
Essex-County, Massachusetts · implied b. ~1929 — 6 household members
| Surname | Dennis |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Lynn City |
| 1935 Residence (County) | Essex |
| Class of Worker | 0 |
| Highest Grade | No 5 |
| 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 Dennis across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
William Dennis
Son · 1940 · age 11 · b. ~1929 · Massachusetts
★ You are viewing this record
Sibling
Philip Dennis
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Helen Dennis
Sibling · 1940 · age 14
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 — Essex-County, Massachusetts
Open full size
1940 US Federal Census — Essex-County, Massachusetts
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-01695-00234)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Joseph Macasione | 69 | Head | — | Italy |
| 2 | Santa Macasione | 69 | Wife | — | Italy |
| 3 | James Macasione | 42 | Son | Salesman | Italy |
| 4 | Frank Macasione | 41 | Son | Laster | Italy |
| 5 | Jack Macasione | 38 | Son | Cementer | Massachusetts |
| 6 | Susan Macasione | 34 | Daughter | Packer | Massachusetts |
| 7 | Angeline Macasione | 32 | Daughter | Repairer | Massachusetts |
| 8 | Mary Macasione | 31 | Daughter | Clerk | Massachusetts |
| 9 | Josephine Macasione | 29 | Daughter | Civil Engineer | Massachusetts |
| 10 | William J. Blaney | 43 | Head | Mechanic | Massachusetts |
| 11 | Viola C. Blaney | 43 | Wife | — | Massachusetts |
| 12 | Thelma R. Blaney | 19 | Daughter | Waitress|Helper | Massachusetts |
| 13 | Alvin R. Blaney | 17 | Son | Delivery Boy | Massachusetts |
| 14 | Eleanor M. Blaney | 15 | Daughter | — | Massachusetts |
| 15 | William J. Jr. Blaney | 5 | Son | — | Massachusetts |
| 16 | James B. D. Teague | 53 | Head | Junk Dealer | Maine |
| 17 | Ethel G. Teague | 49 | Wife | Box Maker | Massachusetts |
| 18 | Clifford Teague | 22 | Son | Farm Helper | Massachusetts |
| 19 | Ernest Teague | 21 | Son | New Worker | Massachusetts |
| 20 | Esther Teague | 15 | Daughter | — | Massachusetts |
| 21 | Thomas D. Bracker | 58 | Head | — | Massachusetts |
| 22 | Mildred G. Bracker | 50 | Wife | — | New Hampshire |
| 23 | Myron Bracker | 64 | Brother | — | Massachusetts |
| 24 | Harry Southwick | 74 | Brother-in-law | — | Massachusetts |
| 25 | James J. Boyle | 38 | Head | Machinist | Massachusetts |
| 26 | Frances C. Boyle | 37 | Wife | Salesgirl | England |
| 27 | Gloria F. Boyle | 12 | Daughter | — | Massachusetts |
| 28 | Virginia M. Boyle | 10 | Daughter | — | Massachusetts |
| 29 | Priscilla Boyle | 1 | Daughter | — | Massachusetts |
| 30 | John Dennis | 48 | Head | Supervisor | Massachusetts |
| 31 | Mary Dennis | 47 | Wife | — | Massachusetts |
| 32 | Helen Dennis | 14 | Daughter | — | Massachusetts |
| 33 | Philip Dennis | 12 | Son | — | Massachusetts |
| 34 | William Dennis THIS PERSON | 11 | Son | — | Massachusetts |
| 35 | Philip Mulligan | 75 | Father-in-law | — | Northern Ireland |
| 36 | William Gaynor | 47 | Head | Foreman | Massachusetts |
| 37 | Ethel Gaynor | 46 | Wife | Inspector | Massachusetts |
| 38 | Kenneth Day | 43 | Head | Finisher | Massachusetts |
| 39 | Alma O. Day | 43 | Wife | — | 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)