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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 1930 and 1940 US Censuses in Luzerne, Pennsylvania (XGBoost, ~Confirmed) — first a daughter (b.~1917), then head of a 9-person household.
Age 13
b. ~1917
Female
Daughter
Born: Pennsylvania
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Luzerne, Pennsylvania |
| Surname | Monahan |
| Given Name | Mary M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| 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 | Wilkesbarre City |
| 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.
9 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Catherine Monahan | Daughter | — | 6 | ~1924 |
| Mary Monahan | Daughter | — | 13 | ~1917 |
| Elizabeth Monahan | Other | — | 45 | ~1885 |
| Milwyn Monahan | Daughter | — | 8 | ~1922 |
| Roger Monahan | Son | — | 4 | ~1926 |
| Ann Monahan | Daughter | — | 3 | ~1927 |
| Reginald Monahan | Head | — | 44 | ~1886 |
| Mildred Monahan | Daughter | — | 10 | ~1920 |
| John Monahan | Son | — | 15 | ~1915 |
Census Appearances
1930
Luzerne, Pennsylvania
Daughter, age 13
Luzerne, Pennsylvania · implied b. ~1917 — 9 household members
| Surname | Monahan |
| Given Name | Mary M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| 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
Luzerne-County, Pennsylvania
Spouse, age 24
Luzerne-County, Pennsylvania · implied b. ~1916 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Monahan |
| Given Name | Margaret |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 24 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Duryea Boro |
| 1935 Residence (County) | Luzerne |
| Occupation | Housewife |
| Class of Worker | H |
| Income (1939) | 0 |
| Highest Grade | H-2 |
| 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 Monahan across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Monahan
Daughter · 1930 · age 13 · b. ~1917 · Pennsylvania
★ You are viewing this record
Sibling
Catherine Monahan
Sibling · 1930 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mildred Monahan
Sibling · 1930 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ann Monahan
Sibling · 1930 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Milwyn Monahan
Sibling · 1930 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Roger Monahan
Sibling · 1930 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Monahan
Sibling · 1930 · age 15
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
50 people indexed on this census page (ia:1930:fifteenthcensus00reel2074:0067)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Walter Weisbert | 45 | Head | Weaver | Pennsylvania |
| 2 | Mary Weisbert | 45 | Wife-H | — | Pennsylvania |
| 3 | Elsie Weisbert | 21 | Daughter | Operator | Pennsylvania |
| 4 | William C. Weisbert | 19 | Son | Office Assistant | Pennsylvania |
| 5 | Albert H. Wynne | 50 | Head | Stock Clerk | Wales |
| 6 | Emma Wynne | 52 | Wife-H | — | Wales |
| 7 | Phyllis Wynne | 15 | Daughter | — | Wales |
| 8 | Arthur W. Schall | 44 | Head | Conductor | Pennsylvania |
| 9 | Augusta C. Schall | 47 | Wife-H | — | New York |
| 10 | Reginald Monahan | 44 | Head | Merchant | Pennsylvania |
| 11 | Elizabeth Monahan | 45 | Wife-H | — | Pennsylvania |
| 12 | John J. Monahan | 15 | Son | — | Pennsylvania |
| 13 | Mary M. Monahan THIS PERSON | 13 | Daughter | — | Pennsylvania |
| 14 | Mildred Monahan | 10 | Daughter | — | Pennsylvania |
| 15 | Milwyn Monahan | 8 | Daughter | — | Pennsylvania |
| 16 | Catherine Monahan | 6 | Daughter | — | Pennsylvania |
| 17 | Roger Monahan | 4 | Son | — | Pennsylvania |
| 18 | Ann Monahan | 3 | Daughter | — | Pennsylvania |
| 19 | Thomas Trevethan | 27 | Head | Labor | Pennsylvania |
| 20 | Anna Trevethan | 25 | Wife-H | Labor | Pennsylvania |
| 21 | Thomas Trevethan | 6 | Son | — | Pennsylvania |
| 22 | Mary Trevethan | 4 | Daughter | — | Pennsylvania |
| 23 | Ruth Trevethan | 2 | Daughter | — | Pennsylvania |
| 24 | Fannie Trevethan | 70 | Mother | — | England |
| 25 | John J. Price | 60 | Boarder | Conductor | Michigan |
| 26 | John Price | 14 | Boarder | — | Pennsylvania |
| 27 | George J. Petros | 71 | Head | Labor | Germany |
| 28 | Catherine Petros | 59 | Wife-H | — | Germany |
| 29 | Kathleen Petros | 25 | Daughter | Labor | Pennsylvania |
| 30 | Florence P. Petros | 23 | Daughter | Labor | Pennsylvania |
| 31 | Frederick P. Petros | 19 | Son | Barber | Pennsylvania |
| 32 | Eleanor Petros | 14 | Daughter | — | Pennsylvania |
| 33 | Joseph G. Petros | 13 | Son | — | Pennsylvania |
| 34 | Mary E. Welsh | 38 | Head-H | — | Pennsylvania |
| 35 | Joseph F. Welsh | 14 | Son | — | Pennsylvania |
| 36 | Andrew Welsh | 11 | Son | — | Pennsylvania |
| 37 | Irene Welsh | 10 | Daughter | — | Pennsylvania |
| 38 | Michael Welsh | 9 | Son | — | Pennsylvania |
| 39 | Charles Welsh | 5 | Son | — | Pennsylvania |
| 40 | Dorothy Welsh | 4 | Daughter | — | Pennsylvania |
| 41 | Harry Mcdermott | 42 | Head | Labor | Pennsylvania |
| 42 | Bernice G. Mcdermott | 42 | Wife-H | — | Colorado |
| 43 | Walter J. Mcdermott | 17 | Son | — | Pennsylvania |
| 44 | Arlene M. Mcdermott | 11 | Daughter | — | Michigan |
| 45 | Robert Mcdermott | 5 | Son | — | Pennsylvania |
| 46 | John Engler | 20 | Head | Driver | Pennsylvania |
| 47 | Leona M. Engler | 20 | Wife-H | — | Pennsylvania |
| 48 | John M. Beck | 57 | Head | Machinist | Pennsylvania |
| 49 | Catherine M. Beck | 48 | Wife-H | — | Colorado |
| 50 | Gertrude M. Beck | 11 | 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)