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Mary Monahan — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Luzerne, Pennsylvania
Our Model Tree links this Mary Monahan across the 1920 and 1930 US Censuses in Luzerne, Pennsylvania (XGBoost, ~Confirmed) — first a daughter (b.~1912), then head of a 10-person household.
Age 18
b. ~1912
Female
Daughter
Born: Pennsylvania
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Luzerne, Pennsylvania |
| Surname | Monahan |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 18 |
| 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 | Larksville Borough |
| Est. Birth Year | ~1912 |
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.
10 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Monahan | Daughter | — | 18 | ~1912 |
| James Monahan | Other | — | 57 | ~1873 |
| Thomas Monahan | Son | — | 12 | ~1918 |
| Agnes Monahan | Other | — | 35 | ~1895 |
| Agnes Monahan | Daughter | — | 10 | ~1920 |
| Rita Monahan | Daughter | — | 6 | ~1924 |
| Catherine Monahan | Daughter | — | 4 | ~1926 |
| James Monahan | Son | — | 1 | ~1929 |
| Thomas Monahan | Head | — | 40 | ~1890 |
| Joseph Monahan | Son | — | 15 | ~1915 |
Census Appearances
1920
Luzerne, Pennsylvania
Daughter, age 7
Luzerne, Pennsylvania · implied b. ~1913 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Monahan |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Luzerne, Pennsylvania
Daughter, age 18
Luzerne, Pennsylvania · implied b. ~1912 — 10 household members
| Surname | Monahan |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 18 |
| 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 Monahan across 2 US Census years (1920 and 1930) in Luzerne, Pennsylvania, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Monahan
Daughter · 1930 · age 18 · b. ~1912 · Pennsylvania
★ You are viewing this record
Sibling
Thomas Monahan
Sibling · 1930 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Monahan
Sibling · 1930 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Catherine Monahan
Sibling · 1930 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Monahan
Sibling · 1930 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rita Monahan
Sibling · 1930 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Agnes Monahan
Sibling · 1930 · age 10
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 — Luzerne, Pennsylvania
Open full size
1930 US Federal Census — Luzerne, Pennsylvania
Page Contents
49 people indexed on this census page (ia:1930:fifteenthcensus00reel2069:0700)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Ludwiga Ludwig | 58 | Head | — | Russia |
| 52 | Robert Price | 58 | Head | Miner | Pennsylvania |
| 53 | Gertrude Price | 28 | Wife-H | — | Wales |
| 54 | Margaret Price | 2 | Daughter | — | Pennsylvania |
| 55 | Thomas Monahan | 40 | Head | Fireman | Pennsylvania |
| 56 | Agnes Monahan | 35 | Wife-H | — | Scotland |
| 57 | Mary Monahan THIS PERSON | 18 | Daughter | — | Pennsylvania |
| 58 | Joseph Monahan | 15 | Son | — | Pennsylvania |
| 59 | Thomas Monahan | 12 | Son | — | Pennsylvania |
| 60 | Agnes Monahan | 10 | Daughter | — | Pennsylvania |
| 61 | Rita Monahan | 6 | Daughter | — | Pennsylvania |
| 62 | Catherine Monahan | 4 | Daughter | — | Pennsylvania |
| 63 | James Monahan | 1 | Son | — | Pennsylvania |
| 64 | James Monahan | 57 | Brother | Miner | Pennsylvania |
| 65 | Annie Dougherty | 70 | Head-H | — | Ireland |
| 66 | Patrick Dougherty | 34 | Son | Labor | Pennsylvania |
| 67 | James Dougherty | 32 | Son | Labor | Pennsylvania |
| 68 | Lillian Dunn | 28 | Daughter | — | Pennsylvania |
| 69 | Thomas Dunn | 27 | Son-law | Miner | Pennsylvania |
| 70 | James Dunn | 5 | Grd son | — | Pennsylvania |
| 71 | Thomas Dolga | 53 | Head | Miner | Austria |
| 72 | Frances Dolga | 46 | Wife-H | — | Austria-Poland |
| 73 | Walter Dolga | 21 | Son | Labor | Pennsylvania |
| 74 | Henry Dolga | 18 | Son | Labor | Pennsylvania |
| 75 | Helen Dolga | 16 | Daughter | — | Pennsylvania |
| 76 | Nellie Dolga | 9 | Daughter | — | Pennsylvania |
| 77 | Vanda Dolga | 7 | Daughter | — | Pennsylvania |
| 78 | Veronica Dolga | 4 | Daughter | — | Pennsylvania |
| 79 | Thomas Zygmunt | 43 | Roomer | Miner | Austria-Poland |
| 80 | Walter Baczewski | 55 | Head | Miner | Poland |
| 81 | Arline Baczewski | 43 | Wife-H | — | Poland |
| 82 | Stanley Baczewski | 19 | Son | Labor | Pennsylvania |
| 83 | Stella Baczewski | 17 | Daughter | — | Pennsylvania |
| 84 | Joseph Baczewski | 3 | Son | — | Pennsylvania |
| 85 | John Batura | 37 | Roomer | Labor | Poland |
| 86 | Ignatz Zelinsky | 29 | Head | Miner | Poland |
| 87 | Mary Zelinsky | 25 | Wife-H | — | Pennsylvania |
| 88 | Joseph Zelinsky | 6 | Son | — | Pennsylvania |
| 89 | Edward Zelinsky | 3 | Son | — | Pennsylvania |
| 90 | Raymond Zelinsky | 1 | Son | — | Pennsylvania |
| 91 | Joseph Burka | 50 | Head | Labor | Austria-Poland |
| 92 | Josephine Burka | 43 | Wife-H | — | Russia-Poland |
| 93 | Peter Burka | 22 | Son | Painter | Pennsylvania |
| 94 | Stanley Burka | 20 | Son | Labor | Pennsylvania |
| 95 | Jennie Burka | 17 | Daughter | — | Pennsylvania |
| 96 | Chester Burka | 14 | Son | — | Pennsylvania |
| 97 | Edward Burka | 12 | Son | — | Pennsylvania |
| 98 | Stanley Glitza | 48 | Head | Miner | Poland |
| 99 | Annie Glitza | 48 | Wife-H | — | Poland |
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)