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Mary Mulligan — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Beaver, Pennsylvania
Our Model Tree links this Mary Mulligan across the 1920 and 1930 US Censuses in Beaver, Pennsylvania (XGBoost, ~Confirmed) — first a daughter (b.~1915), then head of a 7-person household.
Age 15
b. ~1915
Female
Daughter
Born: Pennsylvania
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Beaver, Pennsylvania |
| Surname | Mulligan |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| 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 | Moon Township |
| Est. Birth Year | ~1915 |
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.
7 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Gordon Mulligan | Head | — | 47 | ~1883 |
| Clara Mulligan | Daughter | — | 9 | ~1921 |
| Mary Mulligan | Daughter | — | 15 | ~1915 |
| Ernest Mulligan | Son | — | 16 | ~1914 |
| Rhoda Mulligan | Spouse | — | 38 | ~1892 |
| Ruth Mulligan | Daughter | — | 8 | ~1922 |
| William Mulligan | Son | — | 10 | ~1920 |
Census Appearances
1920
Beaver, Pennsylvania
Daughter, age 4
Beaver, Pennsylvania · implied b. ~1916 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Milligan |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | none |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Beaver, Pennsylvania
Daughter, age 15
Beaver, Pennsylvania · implied b. ~1915 — 7 household members
| Surname | Mulligan |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| 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 Mulligan across 2 US Census years (1920 and 1930) in Beaver, Pennsylvania, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Mulligan
Daughter · 1930 · age 15 · b. ~1915 · Pennsylvania
★ You are viewing this record
Sibling
Clara Mulligan
Sibling · 1930 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ernest Mulligan
Sibling · 1930 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Mulligan
Sibling · 1930 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ruth Mulligan
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 — Beaver, Pennsylvania
Open full size
1930 US Federal Census — Beaver, Pennsylvania
Page Contents
50 people indexed on this census page (ia:1930:fifteenthcensus00reel1997:0284)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Marko Jarybresic | 44 | Head | Laborer | Czechoslovakia |
| 52 | Barbra Jarybresic | 44 | Wife | — | Czechoslovakia |
| 53 | Mary Jarybresic | 15 | Daughter | — | Pennsylvania |
| 54 | Frank Jarybresic | 8 | Son | — | Pennsylvania |
| 55 | Katie Jarybresic | 6 | Daughter | — | Pennsylvania |
| 56 | Anya Jarybresic | 43 | Sister | — | Czechoslovakia |
| 57 | Carl Krown | 31 | Head | Shipping Clerk | Pennsylvania |
| 58 | Charlotte Mae Krown | 31 | Wife | — | Ohio |
| 59 | Mary Krown | 70 | Mother | — | Czechoslovakia |
| 60 | Louis Peters | 46 | Head | Laborer | Illinois |
| 61 | Anna Peters | 33 | Wife | — | Pennsylvania |
| 62 | Earl Peters | 14 | Son | — | Ohio |
| 63 | John Peters | 13 | Son | — | Ohio |
| 64 | Edward Peters | 9 | Son | — | Ohio |
| 65 | Dorothy Mae Peters | 7 | Daughter | — | Pennsylvania |
| 66 | Clingre Peters | 5 | Daughter | — | Pennsylvania |
| 67 | Amelia Greiner | 60 | Head | — | Germany |
| 68 | Gusta Greiner | 26 | Son | Station Helper | Pennsylvania |
| 69 | John Greiner | 25 | Son | Laborer | Pennsylvania |
| 70 | Richard Greiner | 23 | Son | Mill Wright | Pennsylvania |
| 71 | Jacob Conkle | 43 | Head | Laborer | Pennsylvania |
| 72 | Stella Conkle | 42 | Wife | — | Ohio |
| 73 | Sarah Conkle | 21 | Adopted Daughter | — | Pennsylvania |
| 74 | Mary Tetchin | 42 | Head | — | Czechoslovakia |
| 75 | Mary Tetchin | 24 | Daughter | — | Pennsylvania |
| 76 | Anna Tetchin | 23 | Daughter | — | Pennsylvania |
| 77 | Julia Tetchin | 21 | Daughter | — | Pennsylvania |
| 78 | Dan Tetchin | 17 | Son | — | Pennsylvania |
| 79 | Helen Tetchin | 15 | Daughter | — | Pennsylvania |
| 80 | Peter Tetchin | 13 | Son | — | Pennsylvania |
| 81 | John Tetchin | 10 | Son | — | Pennsylvania |
| 82 | Margaret Tetchin | 8 | Daughter | — | Pennsylvania |
| 83 | Mary Tetchin | 6 | Daughter | — | Pennsylvania |
| 84 | Harry Sinclair | 39 | Head | Blower | Pennsylvania |
| 85 | Elsie Sinclair | 34 | Wife | — | Pennsylvania |
| 86 | Thomas Sinclair | 13 | Son | — | Pennsylvania |
| 87 | Le Roy Sinclair | 10 | Son | — | Pennsylvania |
| 88 | Frederick Sinclair | 9 | Son | — | Pennsylvania |
| 89 | John Jurkison | 46 | Head | Laborer | Czechoslovakia |
| 90 | Anna Jurkison | 50 | Wife | — | Czechoslovakia |
| 91 | Joseph Jurkison | 22 | Son | Laborer | Pennsylvania |
| 92 | Margaret Jurkison | 19 | Daughter | Clerk | Pennsylvania |
| 93 | Mike Jurkison | 16 | Son | — | Pennsylvania |
| 94 | Gordon Mulligan | 47 | Head | Laborer | Pennsylvania |
| 95 | Rhoda Mulligan | 38 | Wife | — | Pennsylvania |
| 96 | Ernest Mulligan | 16 | Son | — | Pennsylvania |
| 97 | Mary Mulligan THIS PERSON | 15 | Daughter | — | Pennsylvania |
| 98 | William Mulligan | 10 | Son | — | Pennsylvania |
| 99 | Clara Mulligan | 9 | Daughter | — | Pennsylvania |
| 100 | Ruth Mulligan | 8 | Daughter | — | Pennsylvania |
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)