MT
Mary Tierney — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Plymouth, Massachusetts
Our Model Tree links this Mary Tierney across the 1920 and 1930 US Censuses in Plymouth, Massachusetts (XGBoost, ~Confirmed) — first a daughter (b.~1911), then head of a 9-person household.
Age 19
b. ~1911
Female
Daughter
Born: Massachusetts
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Plymouth, Massachusetts |
| Surname | Tierney |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | New Hampshire |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | City Of Brockton |
| Est. Birth Year | ~1911 |
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 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| John Tierney | Son | — | 10 | ~1920 |
| Helen Tierney | Daughter | — | 13 | ~1917 |
| James Tierney | Head | — | 49 | ~1881 |
| Kathleen Tierney | Daughter | — | 6 | ~1924 |
| James Tierney | Daughter | — | 7 | ~1923 |
| Mary Tierney | Daughter | — | 19 | ~1911 |
| James Tierney | Son | — | 15 | ~1915 |
| Mary Tierney | Other | — | 46 | ~1884 |
| William Tierney | Son | — | 17 | ~1913 |
Census Appearances
1920
Plymouth, Massachusetts
Daughter, age 9
Plymouth, Massachusetts · implied b. ~1911 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Tierney |
| Given Name | Mary E |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Canada |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Plymouth, Massachusetts
Daughter, age 19
Plymouth, Massachusetts · implied b. ~1911 — 9 household members
| Surname | Tierney |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | New Hampshire |
| 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 Tierney across 2 US Census years (1920 and 1930) in Plymouth, Massachusetts, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Tierney
Daughter · 1930 · age 19 · b. ~1911 · Massachusetts
★ You are viewing this record
Sibling
James Tierney
Sibling · 1930 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Kathleen Tierney
Sibling · 1930 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Helen Tierney
Sibling · 1930 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Tierney
Sibling · 1930 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Tierney
Sibling · 1930 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Tierney
Sibling · 1930 · age 17
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 — Plymouth, Massachusetts
Open full size
1930 US Federal Census — Plymouth, Massachusetts
Page Contents
50 people indexed on this census page (ia:1930:massachusettscensus00reel939:0313)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | James Tierney | 49 | Head | Shoeworker | Massachusetts |
| 2 | Mary Tierney | 46 | Wife-H | — | New Hampshire |
| 3 | Mary Tierney THIS PERSON | 19 | Daughter | — | Massachusetts |
| 4 | William Tierney | 17 | Son | — | Massachusetts |
| 5 | James Tierney | 15 | Son | — | Massachusetts |
| 6 | Helen Tierney | 13 | Daughter | — | Massachusetts |
| 7 | John Tierney | 10 | Son | — | Massachusetts |
| 8 | James Tierney | 7 | Daughter | — | Massachusetts |
| 9 | Kathleen Tierney | 6 | Daughter | — | Massachusetts |
| 10 | Daniel Durant | 53 | Head | — | Canada-French |
| 11 | Katherine Durant | 48 | Wife-H | — | Northern Ireland |
| 12 | Anna Durant | 24 | Daughter | Operator | Massachusetts |
| 13 | Robert Durant | 10 | Son | — | Massachusetts |
| 14 | Margaret Welch | 53 | Sister-in-law | Shoeworker | Massachusetts |
| 15 | Bessie F. Wentworth | 48 | Head | Shoeworker | Massachusetts |
| 16 | Cleda Wentworth | 21 | Daughter | Typist | Massachusetts |
| 17 | Anna Paulson | 73 | Mother | — | Sweden |
| 18 | John Voci | 33 | Head | Shoeworker | Italy |
| 19 | Margaret Voci | 31 | Wife-H | — | Massachusetts |
| 20 | Dorothy Voci | 17 | Daughter | — | Massachusetts |
| 21 | Virginia Voci | 7 | Daughter | — | Massachusetts |
| 22 | Maurice Raleigh | 72 | Head | — | Irish Free State |
| 23 | Annie E. Raleigh | 56 | Wife-H | — | Massachusetts |
| 24 | Edward P. Raleigh | 27 | Son | Draughtsman | Massachusetts |
| 25 | Anne Raleigh | 23 | Daughter | — | Massachusetts |
| 26 | Robert Raleigh | 13 | Son | — | Massachusetts |
| 27 | William Holgate | 8 | Lodger | — | South Dakota |
| 28 | Edwin Ozelina | 36 | Head | Wood-Worker | Sweden |
| 29 | Margaret Ozelina | 31 | Wife-H | — | Massachusetts |
| 30 | Edwin Ozelina | 3 | Son | — | Massachusetts |
| 31 | Gordon Ozelina | 2 | Son | — | Massachusetts |
| 32 | Carl Sunde | 65 | Head | Shoe-Worker | Sweden |
| 33 | Emma Sunde | 58 | Wife-H | — | Sweden |
| 34 | Dorothy Havens | 13 | Granddaughter | — | Massachusetts |
| 35 | John Lyon | 46 | Head | Machinist | Sweden |
| 36 | James Powers | 40 | Head | Shoe Worker | Massachusetts |
| 37 | Agnes S. Powers | 34 | Wife-H | Shoe Worker | Massachusetts |
| 38 | Agnes V. Powers | 13 | Daughter | — | Massachusetts |
| 39 | Everett Waite | 46 | Head | Shoe-Worker | New Hampshire |
| 40 | Lillie Waite | 44 | Wife-H | — | Sweden |
| 41 | Evelyn Waite | 16 | Daughter | — | Massachusetts |
| 42 | John S. Nelson | 68 | Head | Provisioner | Sweden |
| 43 | Ida Nelson | 68 | Wife-H | — | Sweden |
| 44 | Dana A. Robillard | 44 | Son-in-law | Barber | Massachusetts |
| 45 | Harding Robillard | 9 | Grandson | — | Massachusetts |
| 46 | Frank Andre | 41 | Head | Plumber | Massachusetts |
| 47 | Lucy Andre | 38 | Wife-H | — | Massachusetts |
| 48 | John Reagan | 56 | Head | Shoe Worker | California |
| 49 | Mary Reagan | 54 | Wife-H | — | Irish Free State |
| 50 | Margaret Reagan | 24 | Daughter | Teacher | Massachusetts |
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)