MC
Mary Connelly — 1930 US Census Record
Model Tree available1930 United States Federal Census · Suffolk, Massachusetts
Our Model Tree links this Mary Connelly across the 1910, 1920 and 1930 US Censuses in Suffolk, Massachusetts (XGBoost, ~Confirmed), with identified parents James & Elizabeth — first a daughter (b.~1910), then head of a 11-person household.
Age 20
b. ~1910
Female
Daughter
Born: Massachusetts
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Suffolk, Massachusetts |
| Surname | Connelly |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Additional Details | |
| Occupation | Reporter |
| Industry | Silk mill |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Reporter |
| Township / Ward | Boston City |
| Est. Birth Year | ~1910 |
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 |
|---|---|---|---|---|
| Agnes Connelly | Daughter | — | 21 | ~1909 |
| Arthur Connelly | Son | — | 7 | ~1923 |
| Mary Connelly | Daughter | — | 20 | ~1910 |
| George Smith | Other | — | 38 | ~1892 |
| Virginia Connelly | Daughter | — | 8 | ~1922 |
| Thomas Connelly | Son | — | 18 | ~1912 |
| Sarah Connelly | Daughter | — | 22 | ~1908 |
| Thomas Connelly | Head | — | 46 | ~1884 |
| Charlotte Connelly | Daughter | — | 13 | ~1917 |
| Emma Connelly | Spouse | — | 45 | ~1885 |
| Grace Connelly | Daughter | — | 16 | ~1914 |
Census Appearances
1910
Suffolk, Massachusetts
Daughter, age
Suffolk, Massachusetts · implied b. ~1910 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Connolly |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
Daughter, age 9
Suffolk, Massachusetts · implied b. ~1911 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Connolly |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Occupation | none |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Suffolk, Massachusetts
Daughter, age 20
Suffolk, Massachusetts · implied b. ~1910 — 11 household members
| Surname | Connelly |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Occupation | Reporter |
| Industry | Silk mill |
| 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 Mary Connelly across 3 US Census years (1910, 1920 and 1930) in Suffolk, Massachusetts, using XGBoost record linkage. Identified parents: father James Connolly (~0.92 confidence) and mother Elizabeth Connolly (~0.92 confidence) and father Michael Connolly (~0.92 confidence) and father Thomas Connelly (~0.92 confidence) and mother Emma Connelly (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
James Connolly
b. ~1879
Source father
● Household
· direct · ~0.92
Mother
Elizabeth Connolly
b. ~1883
Source mother
● Household
· direct · ~0.92
Father
Michael Connolly
b. ~1884
Source father
● Household
· direct · ~0.92
Father
Thomas Connelly
b. ~1884
Source father
● Household
· direct · ~0.92
Mother
Emma Connelly
b. ~1885
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Connelly
Daughter · 1930 · age 20 · b. ~1910 · Massachusetts
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Sibling
Charlotte Connelly
Sibling · 1930 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Agnes Connelly
Sibling · 1930 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Sarah Connelly
Sibling · 1930 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas Connelly
Sibling · 1930 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Arthur Connelly
Sibling · 1930 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Grace Connelly
Sibling · 1930 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Virginia Connelly
Sibling · 1930 · age 8
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 — Suffolk, Massachusetts
Open full size
1930 US Federal Census — Suffolk, Massachusetts
Page Contents
49 people indexed on this census page (ia:1930:massachusettscensus00reel955:0568)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Eleanor Dick | 6 | Daughter | — | Massachusetts |
| 52 | William Stevens | 44 | Head | Reporter | Maine |
| 53 | Jennie Stevens | 38 | Wife | — | France (Brittany) |
| 54 | Bernalda Stevens | 21 | Daughter | Credit Clerk | California |
| 56 | Carl G. Wearner | 42 | Head | Carpenter | Sweden |
| 57 | Alma M. Wearner | 38 | Wife | — | Sweden |
| 58 | Esther M. Wearner | 8 | Daughter | — | Massachusetts |
| 59 | Edward H. Johanson | 36 | Head | Machinist | Sweden |
| 60 | Elsa Johanson | 35 | Wife | — | Sweden |
| 61 | Elsa Johanson | 3 | Daughter | — | Massachusetts |
| 62 | Sverre E. Nelson | 35 | Head | Machinist | Sweden |
| 63 | Hannah C. Nelson | 33 | Wife | — | Sweden |
| 64 | Marion L. Nelson | 2 | Daughter | — | Massachusetts |
| 65 | Guido Briggs | 29 | Head | Police | Massachusetts |
| 66 | Elizabeth H. Briggs | 25 | Wife | — | Massachusetts |
| 67 | Elizabeth Briggs | 6 | Daughter | — | Massachusetts |
| 68 | Doris Briggs | 4 | Daughter | — | Massachusetts |
| 69 | Auguste Beaupré | 59 | Head | Helper | Canada French |
| 70 | Guillerme Beaupré | 61 | Wife | — | Canada French |
| 71 | Dora M. Beaupré | 33 | Daughter | Machine Oper. | Massachusetts |
| 72 | Clara Beaupré | 26 | Daughter | Teacher | Massachusetts |
| 73 | Alfred Beaupré | 24 | Son | Tennis Maker | Massachusetts |
| 74 | Arthur Beaupré | 18 | Son | Spring Maker | Massachusetts |
| 75 | Frederick A. Witol | 44 | Head | Shipping Clerk | Russia (Latvia) |
| 76 | Elizabeth Witol | 38 | Wife | — | Latvia (Russian) |
| 77 | Virginia Witol | 15 | Daughter | — | Massachusetts |
| 78 | Barbara Witol | 14 | Daughter | — | Massachusetts |
| 79 | Adolph Witol | 11 | Son | — | Massachusetts |
| 80 | Rudolph Witol | 11 | Son | — | Massachusetts |
| 81 | Theodora Demond | 61 | Mother in law | — | Latvia (Russian) |
| 82 | Albino Cerutto | 41 | Head | — | Italy |
| 83 | Domenica Cerutto | 39 | Wife | — | Massachusetts |
| 84 | Rosa Cerutto | 18 | Daughter | Operator | Massachusetts |
| 85 | Rena Cerutto | 16 | Daughter | — | Massachusetts |
| 86 | Marguerite Cerutto | 12 | Daughter | — | Massachusetts |
| 87 | Albert Upriano | 24 | Brother | Candy Maker | Italy |
| 88 | Thomas F. Connelly | 46 | Head | Messenger | Massachusetts |
| 89 | Emma J. Connelly | 45 | Wife | — | Massachusetts |
| 90 | Sarah Connelly | 22 | Daughter | Stenographer | Massachusetts |
| 91 | Agnes Connelly | 21 | Daughter | Stenographer | Massachusetts |
| 92 | Mary Connelly THIS PERSON | 20 | Daughter | Reporter | Massachusetts |
| 93 | Thomas Connelly | 18 | Son | Salesman | Massachusetts |
| 94 | Grace Connelly | 16 | Daughter | — | Massachusetts |
| 95 | Charlotte Connelly | 13 | Daughter | — | Massachusetts |
| 96 | Virginia Connelly | 8 | Daughter | — | Massachusetts |
| 97 | Arthur Connelly | 7 | Son | — | Massachusetts |
| 98 | George Smith | 38 | Brother in law | Clerk | Massachusetts |
| 99 | Bartholomew O'Brien | 43 | Head | Circulation Mgr | Massachusetts |
| 100 | Agnes O'Brien | 38 | Wife | — | Canada - Eng |
Related Census Records
Pedigree Summary
Mary + 7 siblings
Gen 1 · 5 parents
~0.92
Max depth 4 (1900–1950 window)
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)