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John Sheehan — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this John Sheehan across the 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed) — first a son (b.~1929), then head of a 8-person household.
Age 11
b. ~1929
Male
Son
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Sheehan |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Somerville |
| 1935 Residence (County) | Middlesex |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | H 4 |
| 1935 Residence | Same House |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | Somerville |
| 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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Pauline Sheehan | Daughter | — | 14 | ~1926 |
| Phyllis Sheehan | Daughter | — | 12 | ~1928 |
| Daniel Sheehan | Head | — | 40 | ~1900 |
| John Sheehan | Son | — | 11 | ~1929 |
| Donald Sheehan | Son | — | 3 | ~1937 |
| James Sheehan | Son | — | 8 | ~1932 |
| Robert Sheehan | Son | — | 4 | ~1936 |
| Margaret Sheehan | Spouse | — | 40 | ~1900 |
Census Appearances
1930
Middlesex, Massachusetts
Son, age
Middlesex, Massachusetts · implied b. ~1930 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sheehan |
| Given Name | John A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Georgia |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Middlesex-County, Massachusetts
Son, age 11
Middlesex-County, Massachusetts · implied b. ~1929 — 8 household members
| Surname | Sheehan |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Somerville |
| 1935 Residence (County) | Middlesex |
| Class of Worker | 0 |
| Highest Grade | H 4 |
| 1935 Residence | Same House |
| 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 John Sheehan across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Sheehan
Son · 1940 · age 11 · b. ~1929 · Massachusetts
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Sibling
James Sheehan
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Pauline Sheehan
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Donald Sheehan
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Sheehan
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Phyllis Sheehan
Sibling · 1940 · age 12
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-t0627-01703-00349)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Jessie Rodine | 17 | Son | New Worker | Massachusetts |
| 42 | Edward Rodine | 13 | Son | — | Massachusetts |
| 43 | Herbert Rodine | 12 | Son | — | Massachusetts |
| 44 | Robert Rodine | 8 | Son | — | Massachusetts |
| 45 | Julia Laidley | 47 | Head | Cook | English Canada |
| 46 | John Laidley | 26 | Son | Shipper | English Canada |
| 47 | Gerald Laidley | 24 | Son | Mill Worker | English Canada |
| 48 | Veronica Laidley | 21 | Daughter | — | English Canada |
| 49 | Gordon Laidley | 19 | Son | Janitor | English Canada |
| 50 | Ronald Laidley | 17 | Son | — | English Canada |
| 51 | Margaret Breen | 47 | Head | Elementary Teacher | Massachusetts |
| 52 | Anna T. Gillis | 55 | Sister | — | Massachusetts |
| 53 | Daniel Sheehan | 40 | Head | Watchman | Eire |
| 54 | Margaret Sheehan | 40 | Wife | — | Massachusetts |
| 55 | Pauline Sheehan | 14 | Daughter | — | Massachusetts |
| 56 | Phyllis Sheehan | 12 | Daughter | — | Massachusetts |
| 57 | John Sheehan THIS PERSON | 11 | Son | — | Massachusetts |
| 58 | James Sheehan | 8 | Son | — | Massachusetts |
| 59 | Robert Sheehan | 4 | Son | — | Massachusetts |
| 60 | Donald Sheehan | 3 | Son | — | Massachusetts |
| 61 | Michael Henne | 70 | Head | — | Eire |
| 62 | Margaret Henne | 75 | Wife | — | Eire |
| 63 | Thomas Henne | 45 | Son | Janitor | Massachusetts |
| 64 | Arthur Henne | 44 | Son | Electric Car Operator | Massachusetts |
| 65 | Dorothy White | 39 | Head | — | Massachusetts |
| 66 | William White | 21 | Son | New Worker | Massachusetts |
| 67 | Edward White | 20 | Son | — | Massachusetts |
| 68 | James White | 18 | Son | — | Massachusetts |
| 69 | Daniel White | 15 | Son | — | Massachusetts |
| 70 | Dorothy White | 11 | Daughter | — | Massachusetts |
| 71 | Michael Mixer | 55 | Head | Laborer | Italy |
| 72 | Antoinetta Mixer | 54 | Wife | — | Italy |
| 73 | Catherine Bloomer | 60 | Head | — | Eire |
| 74 | Mary Bloomer | 34 | Daughter | Secretary | Massachusetts |
| 75 | Robert Bloomer | 32 | Son | Fireman | Massachusetts |
| 76 | Thomas Bloomer | 30 | Son | Bookkeeper | Massachusetts |
| 77 | Patricia Bloomer | 27 | Daughter | Secretary | Massachusetts |
| 78 | Quentin, Jr. Bloomer | 25 | Son | Clerk | Massachusetts |
| 79 | Geraldine Bloomer | 17 | Daughter | — | Massachusetts |
| 80 | Irene White | 26 | Niece | Waitress | 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)