MF
Mary Flynn — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Allegheny, Pennsylvania
Our Model Tree links this Mary Flynn across the 1920 and 1930 US Censuses in Allegheny, Pennsylvania (XGBoost, ~Confirmed) — first a daughter (b.~1920), then head of a 12-person household.
Age 10
b. ~1920
Female
Daughter
Born: Pennsylvania
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Allegheny, Pennsylvania |
| Surname | Flynn |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Pittsburgh City |
| Est. Birth Year | ~1920 |
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 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Flynn | Daughter | — | 10 | ~1920 |
| Anna Flynn | Daughter | — | 17 | ~1913 |
| Mildred Flynn | Daughter | — | 3 | ~1927 |
| Sadie Flynn | Daughter | — | 12 | ~1918 |
| Joseph Flynn | Head | — | 43 | ~1887 |
| Sadie Flynn | Other | — | 39 | ~1891 |
| John Flynn | Son | — | 13 | ~1917 |
| William Flynn | Son | — | 9 | ~1921 |
| Robert Flynn | Son | — | 8 | ~1922 |
| Harry Flynn | Son | — | 4 | ~1926 |
| Russell Flynn | Son | — | 6 | ~1924 |
| Joseph Flynn | Son | — | 15 | ~1915 |
Census Appearances
1920
Allegheny, Pennsylvania
Daughter, age
Allegheny, Pennsylvania · implied b. ~1920 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Flynn |
| Given Name | Mary E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Allegheny, Pennsylvania
Daughter, age 10
Allegheny, Pennsylvania · implied b. ~1920 — 12 household members
| Surname | Flynn |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| 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 |
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 Flynn across 2 US Census years (1920 and 1930) in Allegheny, Pennsylvania, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Flynn
Daughter · 1930 · age 10 · b. ~1920 · Pennsylvania
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Sibling
John Flynn
Sibling · 1930 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Sadie Flynn
Sibling · 1930 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Harry Flynn
Sibling · 1930 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Anna Flynn
Sibling · 1930 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mildred Flynn
Sibling · 1930 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Flynn
Sibling · 1930 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Russell Flynn
Sibling · 1930 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Flynn
Sibling · 1930 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Flynn
Sibling · 1930 · age 9
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 — Allegheny, Pennsylvania
Open full size
1930 US Federal Census — Allegheny, Pennsylvania
Page Contents
36 people indexed on this census page (ia:1930:fifteenthcensus00reel1973:0874)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Michael Duncisin | 44 | Head | Boiler Maker | Czechoslovakia |
| 2 | Anna Duncisin | 44 | Wife-H | — | Czechoslovakia |
| 3 | Michael Jr Duncisin | 22 | Son | Heater | Pennsylvania |
| 4 | John Duncisin | 20 | Son | Apprentice | Pennsylvania |
| 5 | Anna Duncisin | 18 | Daughter | Wrapper | Pennsylvania |
| 6 | Stephen Duncisin | 12 | Son | — | Pennsylvania |
| 7 | Margaret Duncisin | 8 | Daughter | — | Pennsylvania |
| 8 | Albert Duncisin | 3 | Son | — | Pennsylvania |
| 9 | Joseph J Flynn | 43 | Head | Fireman | Pennsylvania |
| 10 | Sadie Flynn | 39 | Wife-H | — | Pennsylvania |
| 11 | Anna Flynn | 17 | Daughter | — | Pennsylvania |
| 12 | Joseph Flynn | 15 | Son | — | Pennsylvania |
| 13 | John Flynn | 13 | Son | — | Pennsylvania |
| 14 | Sadie Flynn | 12 | Daughter | — | Pennsylvania |
| 15 | Mary Flynn THIS PERSON | 10 | Daughter | — | Pennsylvania |
| 16 | William Flynn | 9 | Son | — | Pennsylvania |
| 17 | Robert Flynn | 8 | Son | — | Pennsylvania |
| 18 | Russell Flynn | 6 | Son | — | Pennsylvania |
| 19 | Harry Flynn | 4 | Son | — | Pennsylvania |
| 20 | Mildred Flynn | 3 | Daughter | — | Pennsylvania |
| 21 | Arthur Astridge | 32 | Head | Machinist | Iowa |
| 22 | Anna Astridge | 26 | Wife-H | — | Pennsylvania |
| 23 | Alice Astridge | 5 | Daughter | — | Pennsylvania |
| 24 | Mildred Astridge | 3 | Daughter | — | Pennsylvania |
| 25 | Arthur Jr Astridge | 2 | Son | — | Pennsylvania |
| 26 | Elizabeth Beyer | 30 | Sister-in-law | Coater | Pennsylvania |
| 27 | John Rollen | 38 | Head | Machinist | Austria |
| 28 | Mary Rollen | 42 | Wife-H | — | Austria |
| 29 | Marie Rollen | 10 | Daughter | — | Pennsylvania |
| 30 | Edward Rollen | 9 | Son | — | Pennsylvania |
| 31 | Joseph Rollen | 6 | Son | — | Pennsylvania |
| 32 | Helen Rollen | 3 | Daughter | — | Pennsylvania |
| 33 | Emil Krone | 44 | Head | Laborer | Hungary |
| 34 | Emil Jr Krone | 8 | Son | — | Pennsylvania |
| 35 | William Krone | 6 | Son | — | Pennsylvania |
| 36 | Theresa Gaston | 47 | Housekeeper | Housekeeper | Austria |
Related Census Records
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)