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Mary Monahan — 1900 US Census Record
Linked across censuses1900 United States Federal Census · Northumberland, Pennsylvania
Our Model Tree links this Mary Monahan across the 1900 and 1910 US Censuses in Northumberland, Pennsylvania (XGBoost, ~Confirmed) — first a spouse (b.~1859), then head of a 9-person household.
Age 41
b. ~1859
Female
Spouse
Born: Pennsylvania
Married
1900 Census Record Details
| Census Year | 1900 |
| Location | Northumberland, Pennsylvania |
| Surname | Monahan |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Birth Month | July |
| Birth Year | 1859 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Pennsylvania |
| Additional Details | |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Coal Township Part Of Springfield Precinct |
| Est. Birth Year | ~1859 |
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 1900 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Monahan | Spouse | — | 41 | ~1859 |
| Thomas Monahan | Son | — | 12 | ~1888 |
| Mary Monahan | Daughter | — | 17 | ~1883 |
| Agnes Monahan | Daughter | — | 3 | ~1897 |
| Margaret Monahan | Daughter | — | 15 | ~1885 |
| John Monahan | Son | — | 6 | ~1894 |
| Francis Monahan | Son | — | 8 | ~1892 |
| Jane Monahan | Daughter | — | 10 | ~1890 |
| John Monahan | Head | — | 42 | ~1858 |
Census Appearances
1900
Northumberland, Pennsylvania
Spouse, age 41
Northumberland, Pennsylvania · implied b. ~1859 — 9 household members
| Surname | Monahan |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Birth Month | July |
| Birth Year | 1859 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Pennsylvania |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1910
Northumberland, Pennsylvania
Spouse, age 49
Northumberland, Pennsylvania · implied b. ~1861 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Meenahan |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Years Married | 26 |
| Children Born | 8 |
| Children Living | 7 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Pennsylvania |
| 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 (1900 and 1910) in Northumberland, Pennsylvania, using XGBoost record linkage.
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This person
Anchor record
Mary Monahan
Spouse · 1900 · age 41 · b. ~1859 · Pennsylvania
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1900 US Federal Census — Northumberland, Pennsylvania
Open full size
1900 US Federal Census — Northumberland, Pennsylvania
Page Contents
50 people indexed on this census page (ia:1900:12thcensusofpopu1448unit:0704)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Bernard Larkin | 11 | Son | At School | Pennsylvania |
| 2 | Catherine Larkin | 6 | Daughter | At School | Pennsylvania |
| 3 | William Campbell | 46 | Boarder | — | Pennsylvania |
| 4 | John Campbell | 35 | Boarder | Asst Assessor | Pennsylvania |
| 5 | Mike Monahan | 47 | Head | Fireman Miner | New York |
| 6 | Thomas Monahan | 19 | Son | Laborer Coal | Pennsylvania |
| 7 | Katie Monahan | 15 | Daughter | — | Pennsylvania |
| 8 | Jettie Monahan | 13 | Daughter | — | Pennsylvania |
| 9 | John Monahan | 41 | Head | Attorney | New York |
| 10 | Mary Monahan THIS PERSON | 40 | Wife | — | Pennsylvania |
| 11 | Mary Monahan | 16 | Daughter | At School | Pennsylvania |
| 12 | Margaret Monahan | 14 | Daughter | School | Pennsylvania |
| 13 | Thomas Monahan | 12 | Son | School | Pennsylvania |
| 14 | Jane Monahan | 10 | Daughter | School | Pennsylvania |
| 15 | Francis Monahan | 8 | Son | School | Pennsylvania |
| 16 | John Monahan | 5 | Son | School | Pennsylvania |
| 17 | Agnes J Monahan | 3 | Daughter | — | Pennsylvania |
| 18 | Edward Foley | 60 | Head | Retired Miner | Ireland |
| 19 | Bridget Foley | 50 | Wife | — | Ireland |
| 20 | Mary Rigney | 29 | Head | — | Pennsylvania |
| 21 | William Rigney | 24 | Brother | — | Pennsylvania |
| 22 | John Rigney | 22 | Brother | Laborer Coal | Pennsylvania |
| 23 | Kate Rigney | 18 | Sister | — | Pennsylvania |
| 24 | Aloysius Rigney | 16 | Brother | At School | Pennsylvania |
| 25 | John M Rigney | 50 | Uncle | Laborer | Ireland |
| 26 | Joseph Wasaluka | 28 | Head | — | Russia Poland |
| 27 | Sarah Wasaluka | 19 | Wife | — | Russia Poland |
| 28 | Mary Wasaluka | 1 | Daughter | — | Pennsylvania |
| 29 | John Keegan | 39 | Head | Laborer Coal | Pennsylvania |
| 30 | Helen Keegan | 42 | Wife | — | Pennsylvania |
| 31 | Annie Keegan | 15 | Daughter | Working Factory | Pennsylvania |
| 32 | John Keegan | 13 | Son | Slate Picker | Pennsylvania |
| 33 | Michael Keegan | 11 | Son | School | Pennsylvania |
| 34 | Annie Keegan | 9 | Daughter | School | Pennsylvania |
| 35 | James Keegan | 7 | Son | School | Pennsylvania |
| 36 | Grace Keegan | 5 | Daughter | — | Pennsylvania |
| 37 | Peter Keegan | 3 | Son | — | Pennsylvania |
| 38 | John Lynch | 66 | Head | Laborer Coal | Ireland |
| 39 | Mary Lynch | 57 | Wife | — | Pennsylvania |
| 40 | Annie Lynch | 32 | Daughter | — | Pennsylvania |
| 41 | James Lynch | 29 | Son | Laborer Boys | Pennsylvania |
| 42 | John Lynch | 26 | Son | Laborer Coal | Pennsylvania |
| 43 | Kate Lynch | 24 | Daughter | — | Pennsylvania |
| 44 | Jane Lynch | 20 | Daughter | — | Pennsylvania |
| 45 | Mike Lynch | 20 | Son | Laborer Coal | Pennsylvania |
| 46 | William Lynch | 36 | Head | Laborer Coal | Pennsylvania |
| 47 | Kate Lynch | 35 | Wife | — | Pennsylvania |
| 48 | Marie Lynch | 7 | Daughter | School | Pennsylvania |
| 49 | Regina Lynch | 3 | Daughter | — | Pennsylvania |
| 50 | Margery Lynch | 1 | Daughter | — | Pennsylvania |
Related Census Records
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1900 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)