JT
John Tierney — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Middlesex, Massachusetts
Our Model Tree links this John Tierney across the 1920 and 1930 US Censuses in Middlesex, Massachusetts (XGBoost, ~Confirmed) — first a son (b.~1913), then head of a 14-person household.
Age 17
b. ~1913
Male
Son
Born: Massachusetts
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Middlesex, Massachusetts |
| Surname | Tierney |
| Given Name | John J |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Additional Details | |
| Occupation | Chauffeur |
| Industry | Store |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Chauffeur |
| Township / Ward | Arlington Town |
| Est. Birth Year | ~1913 |
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.
14 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Patricia Tierney | Daughter | — | 2 | ~1928 |
| Justin Tierney | Son | — | 4 | ~1926 |
| Catherine Tierney | Daughter | — | 7 | ~1923 |
| Marie Tierney | Daughter | — | 21 | ~1909 |
| John Tierney | Head | — | 47 | ~1883 |
| Jerome Tierney | Son | — | 6 | ~1924 |
| Mary Tierney | Other | — | 72 | ~1858 |
| Edward Tierney | Son | — | 13 | ~1917 |
| Philip Tierney | Son | — | 15 | ~1915 |
| John Tierney | Son | — | 17 | ~1913 |
| Katherine Tierney | Other | — | 39 | ~1891 |
| Richard Tierney | Son | — | 8 | ~1922 |
| Paul Tierney | Son | — | 19 | ~1911 |
| Quentin Tierney | Son | — | 12 | ~1918 |
Census Appearances
1920
Middlesex, Massachusetts
Son, age 7
Middlesex, Massachusetts · implied b. ~1913 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Tearney |
| Given Name | John F. Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 7 |
| 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
Son, age 17
Middlesex, Massachusetts · implied b. ~1913 — 14 household members
| Surname | Tierney |
| Given Name | John J |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Occupation | Chauffeur |
| Industry | Store |
| Class of Worker | W |
| 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 John Tierney across 2 US Census years (1920 and 1930) in Middlesex, Massachusetts, using XGBoost record linkage.
Show:
This person
Anchor record
John Tierney
Son · 1930 · age 17 · b. ~1913 · Massachusetts
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Sibling
Paul Tierney
Sibling · 1930 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Catherine Tierney
Sibling · 1930 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Quentin Tierney
Sibling · 1930 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Richard Tierney
Sibling · 1930 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edward Tierney
Sibling · 1930 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Patricia Tierney
Sibling · 1930 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jerome Tierney
Sibling · 1930 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Marie Tierney
Sibling · 1930 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Philip Tierney
Sibling · 1930 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Justin Tierney
Sibling · 1930 · age 4
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:massachusettscensus00reel913:1033)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | James C Franklin | 55 | Head | Shipper | Canada English |
| 2 | Minnie Franklin | 49 | Wife-H | — | Canada English |
| 3 | Vernon R Franklin | 21 | Son | Salesman | Canada English |
| 4 | John A Franklin | 35 | Boarder | Painter | Canada English |
| 5 | James H Green | 66 | Head | Plumber | Massachusetts |
| 6 | Peter Coluci | 49 | Head | Barber | Italy |
| 7 | Cesira Coluci | 51 | Wife-H | — | Massachusetts |
| 8 | Dorothy Coluci | 25 | Daughter | Stenographer | Massachusetts |
| 9 | George Coluci | 23 | Son | Clerk | Massachusetts |
| 10 | Albert Coluci | 18 | Son | — | Massachusetts |
| 11 | Mason T Jackson | 41 | Head | Insurance | Canada English |
| 12 | Gladys M Jackson | 42 | Wife-H | — | Canada English |
| 13 | Phyllis M Jackson | 19 | Daughter | — | Canada English |
| 14 | Joseph L Smith | 54 | Head | Manager | New York |
| 15 | Mary F Smith | 50 | Wife-H | — | New Hampshire |
| 16 | Joseph L Smith | 23 | Son | Mechanic | Massachusetts |
| 17 | James J Smith | 22 | Son | Clerk | Massachusetts |
| 18 | Irene L Smith | 21 | Daughter | Teacher | Massachusetts |
| 19 | Jarrett E Smith | 20 | Son | — | Massachusetts |
| 20 | Geraldine Smith | 17 | Daughter | — | Massachusetts |
| 21 | Matthew T Furell | 50 | Brother-in-law | Clerk | New Hampshire |
| 22 | John F Tierney | 47 | Head | Grocer | Massachusetts |
| 23 | Katherine A Tierney | 39 | Wife-H | — | Massachusetts |
| 24 | Marie E Tierney | 21 | Daughter | Stenographer | Massachusetts |
| 25 | Paul J Tierney | 19 | Son | — | Massachusetts |
| 26 | John J Tierney THIS PERSON | 17 | Son | Chauffeur | Massachusetts |
| 27 | Philip L Tierney | 15 | Son | — | Massachusetts |
| 28 | Edward Tierney | 13 | Son | — | Massachusetts |
| 29 | Quentin Tierney | 12 | Son | — | Massachusetts |
| 30 | Richard A Tierney | 8 | Son | — | Massachusetts |
| 31 | Catherine F Tierney | 7 | Daughter | — | Massachusetts |
| 32 | Jerome Tierney | 6 | Son | — | Massachusetts |
| 33 | Justin Tierney | 4 | Son | — | Massachusetts |
| 34 | Patricia A Tierney | 2 | Daughter | — | Massachusetts |
| 35 | Mary E Tierney | 72 | Mother | — | Canada English |
| 36 | George W Colby | 35 | Head | Cutter | Massachusetts |
| 37 | Catherine M Colby | 35 | Wife-H | — | Irish Free State |
| 38 | Barbara Colby | 6 | Daughter | — | Massachusetts |
| 39 | Emily E Meehan | 69 | Head | Sorter | Massachusetts |
| 40 | Rose E Meehan | 60 | Sister-H | — | Massachusetts |
| 41 | Anna B Meehan | 17 | Daughter | — | Massachusetts |
| 42 | Annie T Toner | 57 | Sister-in-law | Teacher | Massachusetts |
| 43 | Irving Atwood | 57 | Head | Secretary | Maine |
| 44 | Harriet C Atwood | 57 | Wife-H | — | Massachusetts |
| 45 | Ethel Atwood | 27 | Daughter | Stenographer | Maine |
| 46 | Ralph Atwood | 24 | Son | Reporter | Massachusetts |
| 47 | Fred J Brown | 54 | Head | Clerk | Massachusetts |
| 48 | Alice A Brown | 41 | Wife-H | — | Massachusetts |
| 49 | Ellsworth Brown | 22 | Son | — | Massachusetts |
| 50 | Evelyn Brown | 13 | Daughter | — | 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)