MQ
Mary Quinn — 1940 US Census Record
Model Tree available1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this Mary Quinn across the 1920, 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents William & Isabella — first a daughter (b.~1917), then head of a 12-person household.
Age 23
b. ~1917
Female
Daughter
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Quinn |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Turtle Creek Borough |
| 1935 Residence (County) | Allegheny |
| Additional Details | |
| Occupation | File Clerk |
| Industry | Electric Shop |
| Class of Worker | PW |
| Income (1939) | 0 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | File Clerk |
| Township / Ward | Turtle Creek Borough |
| Est. Birth Year | ~1917 |
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.
12 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Helen Quinn | Daughter | — | 27 | ~1913 |
| Rose Quinn | Daughter | — | 15 | ~1925 |
| Dorothy Quinn | Daughter | — | 13 | ~1927 |
| Isabella Quinn | Daughter | — | 17 | ~1923 |
| Catherine Quinn | Daughter | — | 25 | ~1915 |
| Irene Quinn | Daughter | — | 9 | ~1931 |
| Mary Quinn | Daughter | — | 23 | ~1917 |
| William Quinn | Head | — | 53 | ~1887 |
| Daniel Quinn | Son | — | 11 | ~1929 |
| James Quinn | Son | — | 21 | ~1919 |
| John Quinn | Son | — | 19 | ~1921 |
| Isabella Quinn | Spouse | — | 51 | ~1889 |
Census Appearances
1920
Allegheny, Pennsylvania
Other, age 2
Allegheny, Pennsylvania · implied b. ~1918 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Quinn |
| Given Name | Mary |
| Relationship to Head | G. Daughter |
| Sex | F |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Can Read | No |
| Can Write | No |
| Speaks English | No |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Allegheny, Pennsylvania
Daughter, age 12
Allegheny, Pennsylvania · implied b. ~1918 — 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 | 12 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Allegheny-County, Pennsylvania
Daughter, age 23
Allegheny-County, Pennsylvania · implied b. ~1917 — 12 household members
| Surname | Quinn |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Turtle Creek Borough |
| 1935 Residence (County) | Allegheny |
| Occupation | File Clerk |
| Industry | Electric Shop |
| Class of Worker | PW |
| Income (1939) | 0 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
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 (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father William Quinn (~0.92 confidence) and mother Isabella Quinn (~0.92 confidence) and father William Quinn (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
William Quinn
b. ~1887
Source father
● Household
· direct · ~0.92
Mother
Isabella Quinn
b. ~1889
Source mother
● Household
· direct · ~0.92
Father
William Quinn
b. ~1898
Source father
● Household
· direct · ~0.92
This person
Anchor record
Mary Quinn
Daughter · 1940 · age 23 · b. ~1917 · Pennsylvania
★ You are viewing this record
Sibling
Dorothy Quinn
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Helen Quinn
Sibling · 1940 · age 27
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rose Quinn
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Irene Quinn
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Isabella Quinn
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Catherine Quinn
Sibling · 1940 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Quinn
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Quinn
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Daniel Quinn
Sibling · 1940 · age 11
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
1940 US Federal Census — Allegheny-County, Pennsylvania
Open full size
1940 US Federal Census — Allegheny-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03419-00386)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John M. Rettger | 49 | Head | Skilled Laborer | Ohio |
| 2 | Sarah Rettger | 44 | Wife | Clerk | Scotland |
| 3 | Estell Rettger | 24 | Daughter | — | Pennsylvania |
| 4 | John Jr. Rettger | 17 | Son | — | Pennsylvania |
| 5 | Marion Rettger | 14 | Daughter | — | Pennsylvania |
| 6 | Mitro Senich | 55 | Head | Laborer | Poland |
| 7 | Anna Senich | 50 | Wife | Clerk | Poland |
| 8 | Mitro Jr. Senich | 21 | Son | — | Pennsylvania |
| 9 | George Senich | 11 | Son | — | Pennsylvania |
| 10 | Mike Madjerich | 26 | Head | Laborer | Pennsylvania |
| 11 | Vilda Madjerich | 25 | Daughter | — | Pennsylvania |
| 12 | John Hrivnak | 29 | Head | Heat Treater | Pennsylvania |
| 13 | Annette Hrivnak | 29 | Wife | — | Poland |
| 14 | Joanne Hrivnak | 5 | Daughter | — | Pennsylvania |
| 15 | William Hrivnak | 2 | Son | — | Pennsylvania |
| 16 | Robert Miller | 63 | Head | Laborer | Pennsylvania |
| 17 | Emma Miller | 55 | Wife | Laborer | Pennsylvania |
| 18 | Francis Miller | 26 | Son | Laborer | Pennsylvania |
| 19 | Agnes Miller | 18 | Daughter | — | Pennsylvania |
| 20 | Ruth Miller | 17 | Daughter | — | Pennsylvania |
| 21 | Vivian Miller | 12 | Daughter | — | Pennsylvania |
| 22 | Daniel Wukich | 21 | Head | Press Hand | Pennsylvania |
| 23 | Elizabeth Wukich | 29 | Wife | — | Pennsylvania |
| 24 | Daniel Jr. Wukich | 1 | Son | — | Pennsylvania |
| 25 | William E. Quinn | 53 | Head | Store Room Clerk | Pennsylvania |
| 26 | Isabella Quinn | 51 | Wife | — | Maryland |
| 27 | Helen Quinn | 27 | Daughter | New Worker | Pennsylvania |
| 28 | Catherine Quinn | 25 | Daughter | File Clerk | Pennsylvania |
| 29 | Mary Quinn THIS PERSON | 23 | Daughter | File Clerk | Pennsylvania |
| 30 | James Quinn | 21 | Son | Clerk | Pennsylvania |
| 31 | John Quinn | 19 | Son | Office Clerk | Pennsylvania |
| 32 | Isabella Quinn | 17 | Daughter | — | Pennsylvania |
| 33 | Rose Quinn | 15 | Daughter | — | Pennsylvania |
| 34 | Dorothy Quinn | 13 | Daughter | — | Pennsylvania |
| 35 | Daniel Quinn | 11 | Son | — | Pennsylvania |
| 36 | Irene Quinn | 9 | Daughter | — | Pennsylvania |
| 37 | William B. Sellers | 36 | Head | Draftsman | Pennsylvania |
| 38 | Hilda D. Sellers | 36 | Wife | — | England |
| 39 | Dora Sellers | 3 | Daughter | — | Pennsylvania |
| 40 | Joan Sellers | 2 | Daughter | — | Pennsylvania |
Related Census Records
Pedigree Summary
Mary + 9 siblings
Gen 1 · 3 parents
~0.92
Max depth 4 (1900–1950 window)
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1940 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)