MH
Mary Hennessy — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Suffolk, Massachusetts
Our Model Tree links this Mary Hennessy across the 1930 and 1940 US Censuses in Suffolk, Massachusetts (XGBoost, ~Confirmed) — first a spouse (b.~1883), then head of a 8-person household.
Age 47
b. ~1883
Female
Spouse
Born: Irish Free State
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Suffolk, Massachusetts |
| Surname | Hennessy |
| Given Name | Mary J. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 47 |
| Marital Status | Married |
| Birthplace | Irish Free State |
| Naturalization Status | Naturalized |
| Year of Immigration | 1901 |
| Age at First Marriage | 26 |
| Father's Birthplace | Irish Free State |
| Mother's Birthplace | Irish Free State |
| Additional Details | |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Veteran | No |
| Birthplace (normalized) | irish free state |
| Township / Ward | East Boston City |
| Est. Birth Year | ~1883 |
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 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Dennis Boomer | Other | — | 48 | ~1882 |
| James Hennessy | Son | — | 13 | ~1917 |
| Mary Hennessy | Spouse | — | 47 | ~1883 |
| Edward Hennessy | Son | — | 10 | ~1920 |
| Mary Hennessy | Daughter | — | 16 | ~1914 |
| Thomas Hennessy | Head | — | 54 | ~1876 |
| Thomas Hennessy | Son | — | 19 | ~1911 |
| John Hennessy | Son | — | 18 | ~1912 |
Census Appearances
1930
Suffolk, Massachusetts
Spouse, age 47
Suffolk, Massachusetts · implied b. ~1883 — 8 household members
| Surname | Hennessy |
| Given Name | Mary J. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 47 |
| Marital Status | Married |
| Birthplace | Irish Free State |
| Naturalization Status | Naturalized |
| Year of Immigration | 1901 |
| Age at First Marriage | 26 |
| Father's Birthplace | Irish Free State |
| Mother's Birthplace | Irish Free State |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Veteran | No |
| Birthplace (normalized) | irish free state |
1940
Middlesex-County, Massachusetts
Other, age 56
Middlesex-County, Massachusetts · implied b. ~1884 — 40 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hennessey |
| Given Name | Markey, Anne |
| Sex | F |
| Color / Race | White |
| Age | 56 |
| Marital Status | Widowed |
| Birthplace | Irish Free State |
| 1935 Residence (City) | Framingham |
| 1935 Residence (County) | Middlesex |
| Naturalization Status | Naturalized |
| Industry | Inst |
| Income (1939) | 0 |
| Highest Grade | No 4 |
| 1935 Residence | Same house |
| Birthplace (normalized) | irish free state |
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 Hennessy across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Hennessy
Spouse · 1930 · age 47 · b. ~1883 · Massachusetts
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Suffolk, Massachusetts
Open full size
1930 US Federal Census — Suffolk, Massachusetts
Page Contents
50 people indexed on this census page (ia:1930:massachusettscensus00reel942:0830)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Bernette Hanton | 22 | Daughter | Clerk | Massachusetts |
| 2 | John R. Hanton | 16 | Son | — | Massachusetts |
| 3 | Wilbur L. Halliday | 27 | Head | Machinist | Massachusetts |
| 4 | Cathlyn J. Halliday | 25 | Wife | — | Massachusetts |
| 5 | Wilbur L. Jr. Halliday | 2 | Son | — | Massachusetts |
| 6 | Norma J. Halliday | 1 | Daughter | — | Massachusetts |
| 7 | Thomas J. Hennessy | 54 | Head | Counter Man | Irish Free State |
| 8 | Mary J. Hennessy THIS PERSON | 47 | Wife | — | Irish Free State |
| 9 | Thomas J. Jr. Hennessy | 19 | Son | Helper | Massachusetts |
| 10 | John F. Hennessy | 18 | Son | — | Massachusetts |
| 11 | Mary C. Hennessy | 16 | Daughter | — | Massachusetts |
| 12 | James Hennessy | 13 | Son | — | Massachusetts |
| 13 | Edward Hennessy | 10 | Son | — | Massachusetts |
| 14 | Dennis Steve Boomer | 48 | Boarder | Painter | Maine |
| 15 | John J. Forrest | 37 | Head | Longshoreman | Massachusetts |
| 16 | Catherine Forrest | 23 | Cousin | Helper | Irish Free State |
| 17 | Michael Moynihan | 60 | Head | Painter | Massachusetts |
| 18 | Clara B. Moynihan | 53 | Wife | — | Norway |
| 19 | Charles L. Moynihan | 29 | Son | Clerk | Massachusetts |
| 20 | Ethel B. Moynihan | 25 | Daughter | Clerk | Massachusetts |
| 21 | Francis N. Moynihan | 19 | Son | Machinist | Massachusetts |
| 22 | Margaret D. Moynihan | 10 | Daughter | — | Massachusetts |
| 23 | Mary Cullen | 49 | Head | Inspector | Massachusetts |
| 24 | Catherine Cullen | 22 | Daughter | Stenographer | Massachusetts |
| 25 | Frank Corcaro | 57 | Head | Laborer | Italy |
| 26 | Rose Corcaro | 52 | Wife | — | Italy |
| 27 | Alfred Corcaro | 22 | Son | Pattern Maker | Massachusetts |
| 28 | Libralto Corcaro | 19 | Son | Laborer | Massachusetts |
| 29 | Josephine Corcaro | 17 | Daughter | Wrapper | Massachusetts |
| 30 | Thomas Corcaro | 15 | Son | — | Massachusetts |
| 31 | Clara Corcaro | 12 | Daughter | — | Massachusetts |
| 32 | John Corcaro | 9 | Son | — | Massachusetts |
| 33 | Samuel Rege | 35 | Head | Laborer | Italy |
| 34 | Mary Rege | 28 | Wife | — | Italy |
| 35 | James Rege | 7 | Son | — | Massachusetts |
| 36 | Antoinette Rege | 6 | Daughter | — | Massachusetts |
| 37 | Rose Rege | 4 | Daughter | — | Massachusetts |
| 38 | Carmela Rege | 2 | Daughter | — | Massachusetts |
| 39 | Christine Uccello | 32 | Head | Braider | Canada French |
| 40 | Mary A. Uccello | 14 | Daughter | — | Canada French |
| 41 | Evelyn L. Uccello | 11 | Daughter | — | Canada French |
| 42 | Leo F. Barron | 28 | Head | Boiler Maker | Canada English |
| 43 | Violet Barron | 25 | Wife | — | Canada English |
| 44 | Warren F. Barron | 5 | Son | — | Massachusetts |
| 45 | Ellaine M. Barron | 1 | Daughter | — | Massachusetts |
| 46 | Walter Tyldesley | 45 | Head | Patrolman | England |
| 47 | Mary L. Tyldesley | 46 | Wife | — | Newfoundland |
| 48 | Walter L. Tyldesley | 8 | Son | — | Massachusetts |
| 49 | — | None | — | — | — |
| 50 | — | None | — | — | — |
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)