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William Delaney — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this William Delaney across the 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed) — first a son (b.~1929), then head of a 9-person household.
Age 11
b. ~1929
Male
Son
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Delaney |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Everett City |
| 1935 Residence (County) | Middlesex |
| Additional Details | |
| Highest Grade | S 4 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | Everett 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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| William Delaney | Son | — | 11 | ~1929 |
| Pauline Delaney | Daughter | — | 14 | ~1926 |
| Leo Delaney | Son | — | ~1940 | |
| Irene Delaney | Daughter | — | 12 | ~1928 |
| Marion Delaney | Spouse | — | 37 | ~1903 |
| Lorraine Delaney | Daughter | — | 7 | ~1933 |
| Patricia Delaney | Daughter | — | 2 | ~1938 |
| Leo Delaney | Head | — | 44 | ~1896 |
| Elizabeth Delaney | Daughter | — | 9 | ~1931 |
Census Appearances
1930
Middlesex, Massachusetts
Son, age 1
Middlesex, Massachusetts · implied b. ~1929 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Delaney |
| Given Name | William |
| 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
Middlesex-County, Massachusetts
Son, age 11
Middlesex-County, Massachusetts · implied b. ~1929 — 9 household members
| Surname | Delaney |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Everett City |
| 1935 Residence (County) | Middlesex |
| Highest Grade | S 4 |
| 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 Delaney across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
William Delaney
Son · 1940 · age 11 · b. ~1929 · Massachusetts
★ You are viewing this record
Sibling
Leo Delaney
Sibling · 1940 · age
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lorraine Delaney
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Irene Delaney
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Elizabeth Delaney
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Patricia Delaney
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Pauline Delaney
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 — 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-t0627-01604-00250)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Ruth F. O'Hearn | 39 | Wife | — | Massachusetts |
| 42 | William O'Hearn | 14 | Son | — | Massachusetts |
| 43 | Robert O'Hearn | 12 | Son | — | Massachusetts |
| 44 | Thomas, Jr. O'Hearn | 9 | Son | — | Massachusetts |
| 45 | Ellen O'Hearn | 3 | Daughter | — | Massachusetts |
| 46 | Joseph Lobdell | 36 | Head | Corporation Counsel | Massachusetts |
| 47 | Joanne Lobdell | 35 | Wife | — | Belgium |
| 48 | Joanne M. Lobdell | 12 | Daughter | — | Massachusetts |
| 49 | Samuel Evans | 60 | Head | — | Newfoundland |
| 50 | Mary Evans | 58 | Wife | — | Nova Scotia |
| 51 | Lloyd S. Evans | 24 | Son | Steel Erector | Massachusetts |
| 52 | John Warren Evans | 22 | Son | Construction Engineer | Massachusetts |
| 53 | Eugene Snook | 29 | Head | Iron Worker | Newfoundland |
| 54 | Dorothy Snook | 26 | Wife | — | Massachusetts |
| 55 | Infant Snook | 0 | Son | — | Massachusetts |
| 56 | Leonard Snook | 49 | Head | Iron Worker | Newfoundland |
| 57 | Drucilla Snook | 48 | Wife | — | Newfoundland |
| 58 | Israel Snook | 84 | Father | — | Newfoundland |
| 59 | Gerald Barrett | 42 | Head | Fisherman | Newfoundland |
| 60 | Marion Barrett | 40 | Wife | — | Newfoundland |
| 61 | Catherine Barrett | 11 | Daughter | — | Massachusetts |
| 62 | Hilda Barrett | 9 | Daughter | — | Massachusetts |
| 63 | Theresa Barrett | 8 | Daughter | — | Massachusetts |
| 64 | Gerald, Jr. Barrett | 6 | Son | — | Massachusetts |
| 65 | Elizabeth Barrett | 4 | Daughter | — | Massachusetts |
| 66 | Jean Marie Barrett | 2 | Daughter | — | Massachusetts |
| 67 | Leo Delaney | 44 | Head | Roofers Helper | Massachusetts |
| 68 | Marion Delaney | 37 | Wife | — | Massachusetts |
| 69 | Pauline Delaney | 14 | Daughter | — | Massachusetts |
| 70 | Irene Delaney | 12 | Daughter | — | Massachusetts |
| 71 | William Delaney THIS PERSON | 11 | Son | — | Massachusetts |
| 72 | Elizabeth Delaney | 9 | Daughter | — | Massachusetts |
| 73 | Lorraine Delaney | 7 | Daughter | — | Massachusetts |
| 74 | Patricia Delaney | 2 | Daughter | — | Massachusetts |
| 75 | Leo Delaney | 0 | Son | — | Massachusetts |
| 76 | Fielding Gillette | 62 | Head | Janitor | Newfoundland |
| 77 | Essula Gillette | 59 | Wife | — | Newfoundland |
| 78 | John Gillette | 21 | Son | Janitor'S Helper | Newfoundland |
| 79 | Willard J. Garrett | 8 | Grandson | — | Massachusetts |
| 80 | Robert Garrett | 6 | Grandson | — | 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)