MS
Mary Sheehan — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Middlesex, Massachusetts
Our Model Tree links this Mary Sheehan across the 1920 and 1930 US Censuses in Middlesex, Massachusetts (XGBoost, ~Confirmed) — first a daughter (b.~1917), then head of a 11-person household.
Age 13
b. ~1917
Female
Daughter
Born: Massachusetts
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Middlesex, Massachusetts |
| Surname | Sheehan |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Additional Details | |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | Malden City |
| Est. Birth Year | ~1917 |
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.
11 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Rita Sheehan | Daughter | — | 8 | ~1922 |
| Mary Sheehan | Daughter | — | 13 | ~1917 |
| Madeline Sheehan | Daughter | — | 27 | ~1903 |
| Frances Sheehan | Daughter | — | 18 | ~1912 |
| Thomas Sheehan | Head | — | 48 | ~1882 |
| Thomas Sheehan | Son | — | 24 | ~1906 |
| Robert Sheehan | Son | — | 14 | ~1916 |
| John Sheehan | Son | — | 22 | ~1908 |
| Richard Sheehan | Son | — | 10 | ~1920 |
| George Sheehan | Son | — | 16 | ~1914 |
| Ellen Sheehan | Spouse | — | 44 | ~1886 |
Census Appearances
1920
Middlesex, Massachusetts
Daughter, age 3
Middlesex, Massachusetts · implied b. ~1917 — 12 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sheehan |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Middlesex, Massachusetts
Daughter, age 13
Middlesex, Massachusetts · implied b. ~1917 — 11 household members
| Surname | Sheehan |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Occupation | none |
| Can Read/Write | Yes |
| 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 Mary Sheehan across 2 US Census years (1920 and 1930) in Middlesex, Massachusetts, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Sheehan
Daughter · 1930 · age 13 · b. ~1917 · Massachusetts
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Sibling
Frances Sheehan
Sibling · 1930 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Madeline Sheehan
Sibling · 1930 · age 27
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Richard Sheehan
Sibling · 1930 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Sheehan
Sibling · 1930 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas Sheehan
Sibling · 1930 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
George Sheehan
Sibling · 1930 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rita Sheehan
Sibling · 1930 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Sheehan
Sibling · 1930 · 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
1930 US Federal Census — Middlesex, Massachusetts
Open full size
1930 US Federal Census — Middlesex, Massachusetts
Page Contents
50 people indexed on this census page (ia:1930:massachusettscensus00reel923:0372)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Lillian B Ollis | 19 | Daughter | Student Nurse | Massachusetts |
| 2 | Dorothy Ollis | 16 | Daughter | — | Massachusetts |
| 3 | Ethel Ollis | 12 | Daughter | — | Massachusetts |
| 4 | John A Knudsen | 44 | Head | Carpenter | Norway |
| 5 | Ragna Knudsen | 42 | Wife | None | Norway |
| 6 | Frank W Knudsen | 6 | Son | None | Massachusetts |
| 7 | Lloyd H Knudsen | 5 | Son | None | Massachusetts |
| 8 | William G Horton | 34 | Head | Tinsmith | Massachusetts |
| 9 | Edith G Horton | 28 | Wife | None | Canada English |
| 10 | Lester W Horton | 11 | Son | None | Massachusetts |
| 11 | Marjorie A Horton | 9 | Daughter | None | Massachusetts |
| 12 | Thomas L Sheehan | 48 | Head | Mailer | Massachusetts |
| 13 | Ellen G Sheehan | 44 | Wife | None | Massachusetts |
| 14 | Madeline V Sheehan | 27 | Daughter | Clerk | Massachusetts |
| 15 | Thomas L Jr Sheehan | 24 | Son | Shipper | Massachusetts |
| 16 | John F Sheehan | 22 | Son | Seaman | Massachusetts |
| 17 | Frances M Sheehan | 18 | Daughter | None | Massachusetts |
| 18 | George F Sheehan | 16 | Son | None | Massachusetts |
| 19 | Robert M Sheehan | 14 | Son | None | Massachusetts |
| 20 | Mary Sheehan THIS PERSON | 13 | Daughter | None | Massachusetts |
| 21 | Richard Sheehan | 10 | Son | None | Massachusetts |
| 22 | Rita Sheehan | 8 | Daughter | None | Massachusetts |
| 23 | Carl O Emanuelsson | 58 | Head | Janitor | Sweden |
| 24 | Botilda M Emanuelsson | 63 | Wife | None | Sweden |
| 25 | Gordon Keddy | 29 | Head | Fireman | Canada English |
| 26 | Pearl Keddy | 26 | Wife | None | Canada English |
| 27 | Mary Keddy | 6 | Daughter | None | Massachusetts |
| 28 | Barbara Keddy | 2 | Daughter | None | Massachusetts |
| 29 | Catherine Keddy | 1 | Daughter | None | Massachusetts |
| 30 | Gaetano Delle Russo | 26 | Head | Buyer | Massachusetts |
| 31 | Margaret Delle Russo | 25 | Wife | None | Massachusetts |
| 32 | Gloria Delle Russo | 1 | Daughter | None | Massachusetts |
| 33 | Angelo Delle Russo | 51 | Head | Dealer | Italy |
| 34 | Carolina Delle Russo | 49 | Wife | None | Italy |
| 35 | Lena Delle Russo | 23 | Daughter | Bookkeeper | Massachusetts |
| 36 | Albert Delle Russo | 21 | Son | Chauffeur | Massachusetts |
| 37 | Josephine Delle Russo | 20 | Daughter | Dipper | Massachusetts |
| 38 | Annie Delle Russo | 17 | Daughter | Dressmaker | Italy |
| 39 | Frank Delle Russo | 14 | Son | None | Massachusetts |
| 40 | Mary Delle Russo | 12 | Daughter | None | Massachusetts |
| 41 | Julia Delle Russo | 10 | Daughter | None | Massachusetts |
| 42 | Fannie Smart | 60 | Head | None | Connecticut |
| 43 | Fritz Sandsten | 42 | Head | Machinist | Sweden |
| 44 | Signe Sandsten | 42 | Wife | None | Sweden |
| 45 | Ralph C Sandsten | 22 | Son | Machinist | Massachusetts |
| 46 | Doris Sandsten | 17 | Daughter | Clerk | Massachusetts |
| 47 | Fritz J Sandsten | 16 | Son | None | Massachusetts |
| 48 | Russell A Sandsten | 4 | Son | None | Massachusetts |
| 49 | Walfrid Anderson | 46 | Brother-in-law | Mechanic | Sweden |
| 50 | William H Horton | 68 | Head | Electrician | England |
Related Census Records
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)