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Mary Monahan — 1920 US Census Record
Linked across censuses1920 United States Federal Census · New York, New York
Our Model Tree links this Mary Monahan across the 1900, 1910 and 1920 US Censuses in New York, New York (XGBoost, ~Confirmed) — first a spouse (b.~1883), then head of a 7-person household.
Age 37
b. ~1883
Female
Spouse
Born: Ireland
Married
1920 Census Record Details
| Census Year | 1920 |
| Location | New York, New York |
| Surname | Monahan |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Ireland |
| Year of Immigration | 1898 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Additional Details | |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
| Township / Ward | Manhattan |
| Est. Birth Year | ~1883 |
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 1920 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| William Flynn | Other | — | 30 | ~1890 |
| Mary Monahan | Spouse | — | 37 | ~1883 |
| Mortimer Monahan | Head | — | 37 | ~1883 |
| Kathleen Monahan | Daughter | — | 14 | ~1906 |
| Harry Gibbons | Other | — | 27 | ~1893 |
| Mortimer Monahan | Son | — | 10 | ~1910 |
| Mary Monahan | Daughter | — | 12 | ~1908 |
Census Appearances
1900
New York, …
Other, age 20
New York, New York · implied b. ~1880 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Monahan |
| Given Name | Mary |
| Relationship to Head | Servant |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Ireland |
| Birth Month | Oct |
| Birth Year | 1880 |
| Year of Immigration | 1899 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Servant |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1910
New York, …
Spouse, age 27
New York, New York · implied b. ~1883 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Monahan |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 27 |
| Marital Status | Married |
| Birthplace | Ireland |
| Years Married | 6 |
| Children Born | 3 |
| Children Living | 3 |
| Year of Immigration | 1897 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1920
New York, …
Spouse, age 37
New York, New York · implied b. ~1883 — 7 household members
| Surname | Monahan |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Ireland |
| Year of Immigration | 1898 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
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 3 US Census years (1900, 1910 and 1920) in New York, New York, using XGBoost record linkage.
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This person
Anchor record
Mary Monahan
Spouse · 1920 · age 37 · b. ~1883 · New York
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1920 US Federal Census — New York, New York
Open full size
1920 US Federal Census — New York, New York
Page Contents
47 people indexed on this census page (ia:1920:14thcensusofpopu1190unit:0167)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Mortimer Monahan | 37 | Head | Longshoreman | Ireland |
| 52 | Mary Monahan THIS PERSON | 37 | Wife | — | Ireland |
| 53 | Kathleen Monahan | 14 | Daughter | — | New York |
| 54 | Mary Monahan | 12 | Daughter | — | New York |
| 55 | Mortimer Monahan | 10 | Son | — | New York |
| 56 | Harry Gibbons | 27 | Boarder | Longshoreman | Ireland |
| 57 | William Flynn | 30 | Boarder | Salesman | Pennsylvania |
| 58 | John W. Hill | 67 | Head | Janitor | New York |
| 59 | Matilda Hill | 57 | Wife | — | New York |
| 60 | William Hill | 23 | Son | Chauffeur | New York |
| 61 | Henry L. Hill | 23 | Son | Chauffeur | New York |
| 62 | Jeanette Hill | 18 | Daughter | Packer | New York |
| 63 | C. Edith Hill | 22 | Daughter-in-law | — | New York |
| 64 | George Hill | 4 | Grandson | — | New York |
| 65 | Aloysius Kirchheim | 20 | Boarder | Cutter | New York |
| 66 | John J. Purcell | 44 | Head | Laborer | New York |
| 67 | Anna Purcell | 43 | Wife | — | New York |
| 68 | James J. Purcell | 20 | Son | Clerk | New York |
| 69 | Lillian Purcell | 19 | Daughter | Clerk | New York |
| 70 | Edward Purcell | 16 | Son | Packer | New York |
| 71 | Margaret Purcell | 13 | Daughter | — | New York |
| 72 | John Purcell | 9 | Son | — | New York |
| 73 | Margaret Byrne | 47 | Sister-in-law | Laundress | New York |
| 74 | Thomas Newman | 38 | Head | Laborer | New York |
| 75 | Isabelle Newman | 40 | Wife | — | New York |
| 76 | Philip Newman | 8 | Son | — | New York |
| 77 | George Kohout | 35 | Head | Laborer | New York |
| 78 | Marie Kohout | 32 | Wife | — | New York |
| 79 | Hortense Kohout | 10 | Daughter | — | New York |
| 80 | George Jr. Kohout | 6 | Son | — | New York |
| 81 | Anna Kohout | 1 | Daughter | — | New York |
| 82 | Mary Regan | 75 | Head | — | Ireland |
| 83 | Thomas Regan | 50 | Son | Painter | New York |
| 84 | Esther Akins | 61 | Head | — | New York |
| 85 | Esther Akins | 20 | Daughter | Packer | New York |
| 86 | Mary Akins | 25 | Daughter | Packer | New York |
| 87 | William Akins | 32 | Son | Longshoreman | New York |
| 88 | William Akins | 78 | Brother-in-law | — | New York |
| 89 | Edward Conway | 53 | Head | Watchman | Ireland |
| 90 | Jane Conway | 52 | Wife | — | Ireland |
| 91 | Andrew Conway | 28 | Son | Teamster | New York |
| 92 | Josephine Conway | 27 | Daughter | Saleslady | New York |
| 93 | John Conway | 25 | Son | Teamster | New York |
| 94 | Helen Conway | 21 | Daughter | Book-Binder | New York |
| 95 | Jane Conway | 19 | Daughter | Packer | New York |
| 96 | Katharine Conway | 15 | Daughter | — | New York |
| 97 | Margaret Conway | 13 | Daughter | — | New York |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1920 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)