MQ
Mary Quinn — 1930 US Census Record
Model Tree available1930 United States Federal Census · Middlesex, Massachusetts
Our Model Tree links this Mary Quinn across the 1910, 1920 and 1930 US Censuses in Middlesex, Massachusetts (XGBoost, ~Confirmed), with identified parents Charles & Annie — first a daughter (b.~1899), then head of a 4-person household.
Age 31
b. ~1899
Female
Daughter
Born: Massachusetts
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Middlesex, Massachusetts |
| Surname | Quinn |
| Given Name | Mary E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 31 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Additional Details | |
| Occupation | Clerical |
| Industry | Candy Factory |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Clerical |
| Township / Ward | Watertown Town |
| Est. Birth Year | ~1899 |
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.
4 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Sarah Quinn | Daughter | — | 30 | ~1900 |
| Mary Quinn | Daughter | — | 31 | ~1899 |
| Patrick Quinn | Head | — | 59 | ~1871 |
| Mary Quinn | Spouse | — | 60 | ~1870 |
Census Appearances
1910
Middlesex, Massachusetts
Daughter, age 10
Middlesex, Massachusetts · implied b. ~1900 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Quinn |
| Given Name | Mildred |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1920
Middlesex, Massachusetts
Daughter, age 19
Middlesex, Massachusetts · implied b. ~1901 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Quinn |
| 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 | Massachusetts |
| Occupation | Cloth inspector |
| Industry | Woolen mill |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Middlesex, Massachusetts
Daughter, age 31
Middlesex, Massachusetts · implied b. ~1899 — 4 household members
| Surname | Quinn |
| Given Name | Mary E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 31 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Occupation | Clerical |
| Industry | Candy Factory |
| 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 Quinn across 3 US Census years (1910, 1920 and 1930) in Middlesex, Massachusetts, using XGBoost record linkage. Identified parents: father Charles Quinn (~0.92 confidence) and mother Annie Quinn (~0.92 confidence) and mother Mary Quinn (~0.92 confidence) and father Patrick Quinn (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Charles Quinn
b. ~1867
Source father
● Household
· direct · ~0.92
Mother
Annie Quinn
b. ~1867
Source mother
● Household
· direct · ~0.92
Mother
Mary Quinn
b. ~1870
Source mother
● Household
· direct · ~0.92
Father
Patrick Quinn
b. ~1871
Source father
● Household
· direct · ~0.92
This person
Anchor record
Mary Quinn
Daughter · 1930 · age 31 · b. ~1899 · Massachusetts
★ You are viewing this record
Sibling
Sarah Quinn
Sibling · 1930 · age 30
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:massachusettscensus00reel931:0084)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Patrick J. Quinn | 59 | Head | Asst Foreman | Massachusetts |
| 52 | Mary E. Quinn | 60 | Wife | — | Massachusetts |
| 53 | Mary E. Quinn THIS PERSON | 31 | Daughter | Clerical | Massachusetts |
| 54 | Sarah J. Quinn | 30 | Daughter | Laborer | Massachusetts |
| 55 | James Messina | 50 | Head | Shoe Maker | Italy |
| 56 | Josephine Messina | 43 | Wife | — | Italy |
| 57 | Frank Messina | 19 | Son | Cutter | Italy |
| 58 | Peter Messina | 17 | Son | Dishwasher | Italy |
| 59 | Carmela Messina | 15 | Daughter | — | Italy |
| 60 | John Messina | 13 | Son | — | Massachusetts |
| 61 | Angelina Messina | 11 | Daughter | — | Massachusetts |
| 62 | Santa Messina | 8 | Daughter | — | Massachusetts |
| 63 | Samuel Messina | 6 | Son | — | Massachusetts |
| 64 | George J. Weisberg | 45 | Head | Plumbing Contractor | Massachusetts |
| 65 | Mary Weisberg | 39 | Wife | — | New Jersey |
| 66 | Selma Weisberg | 15 | Daughter | — | Massachusetts |
| 67 | Nathan Weisberg | 15 | Son | — | Massachusetts |
| 68 | Charles R. Weisberg | 10 | Son | — | Massachusetts |
| 69 | Edward J. Mcnulty | 33 | Head | Teller | Massachusetts |
| 70 | Anna E. Mcnulty | 36 | Wife | — | Massachusetts |
| 71 | Edward J. Jr. Mcnulty | 8 | Son | — | Massachusetts |
| 72 | Paul C. Mcnulty | 5 | Son | — | Massachusetts |
| 73 | William H. Jones | 51 | Head | Laborer | Massachusetts |
| 74 | Edward Jones | 21 | Son | Clerk | Massachusetts |
| 75 | Alice Jones | 18 | Daughter | Operator | Massachusetts |
| 76 | Helen C. Jones | 16 | Daughter | — | Massachusetts |
| 77 | Ruth P. Jones | 13 | Daughter | — | Massachusetts |
| 78 | Eunice Deering | 33 | Lodger | Clerk | Canada-English |
| 79 | Riccardo Fontana | 43 | Head | Laborer | Italy |
| 80 | Antoinette Fontana | 37 | Wife | — | Italy |
| 81 | Mabel Fontana | 16 | Daughter | Examiner | Massachusetts |
| 82 | Ella Fontana | 14 | Daughter | — | Massachusetts |
| 83 | Ida Fontana | 12 | Daughter | — | Massachusetts |
| 84 | Grandina Fontana | 9 | Daughter | — | Massachusetts |
| 85 | Adelmo Fontana | 8 | Son | — | Massachusetts |
| 86 | John Fontana | 4 | Son | — | Massachusetts |
| 87 | Anna Piotty | 20 | Step-Daughter | Bookkeeper | Massachusetts |
| 88 | George Piotty | 19 | Step-Son | Chauffeur | Massachusetts |
| 89 | Angela Piotty | 18 | Step-Daughter | Elev. Operator | Massachusetts |
| 90 | Ernestine Ferrari | 43 | — | Manager | Italy |
| 91 | Angelina Ferrari | 21 | Daughter | Clerk | Massachusetts |
| 92 | Josephine Ferrari | 19 | Daughter | Clerk | Massachusetts |
| 93 | Louis Ferrari | 20 | Son | Salesman | Massachusetts |
| 94 | John R. Nolan | 58 | — | — | Irish Free State |
| 95 | Hannah C. Nolan | 54 | Wife | — | Irish Free State |
| 96 | Gertrude L. Nolan | 26 | Daughter | Stenographer | Massachusetts |
| 97 | Theresa M. Nolan | 24 | Daughter | Stenographer | Massachusetts |
| 98 | Catherine R. Nolan | 22 | Daughter | Stenographer | Massachusetts |
| 99 | Edward Nolan | 20 | Son | Chauffeur | Massachusetts |
| 100 | Mary C. Nolan | 19 | Daughter | Stenographer | Massachusetts |
Pedigree Summary
Mary + 1 sibling
Gen 1 · 4 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)