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Margaret Mcmahon — 1920 US Census Record
Linked across censuses1920 United States Federal Census · New York, New York
Our Model Tree links this Margaret Mcmahon across the 1900, 1910 and 1920 US Censuses in New York, New York (XGBoost, ~Confirmed) — first a spouse (b.~1876), then head of a 3-person household.
Age 44
b. ~1876
Female
Spouse
Born: Ireland
Married
1920 Census Record Details
| Census Year | 1920 |
| Location | New York, New York |
| Surname | McMahon |
| Given Name | Margaret |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Ireland |
| Year of Immigration | 1889 |
| 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 | New York |
| Est. Birth Year | ~1876 |
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.
3 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to Margaret | Age | Birth yr |
|---|---|---|---|---|
| Thomas Mcmahon | Head | — | 44 | ~1876 |
| Margaret Mcmahon | Spouse | — | 44 | ~1876 |
| Marion Mcmahon | Daughter | — | 17 | ~1903 |
Census Appearances
1900
New York, …
Other, age 25
New York, New York · implied b. ~1875 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McMahon |
| Given Name | Margaret |
| Relationship to Head | D. Law |
| Sex | F |
| Color / Race | White |
| Age | 25 |
| Marital Status | Married |
| Birthplace | Ireland |
| Birth Month | Mar |
| Birth Year | 1875 |
| Year of Immigration | 1894 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1910
New York, …
Other, age 35
New York, New York · implied b. ~1875 — 50 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McMahon |
| Given Name | Margaret |
| Sex | F |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Ireland |
| Year of Immigration | 1889 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read | No |
| Can Write | No |
| Speaks English | English |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1920
New York, …
Spouse, age 44
New York, New York · implied b. ~1876 — 3 household members
| Surname | McMahon |
| Given Name | Margaret |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Ireland |
| Year of Immigration | 1889 |
| 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 Margaret Mcmahon 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
Margaret Mcmahon
Spouse · 1920 · age 44 · b. ~1876 · 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
50 people indexed on this census page (ia:1920:14thcensusofpopu1202unit:0339)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | S Alice | 22 | daughter | — | New York |
| 52 | Elizabeth A Alice | 21 | daughter | — | New York |
| 53 | Peter J Flynn | 55 | Head | Engineer | Ireland |
| 54 | Margaret Flynn | 46 | Wife | — | Ireland |
| 55 | Bernard Flynn | 23 | son | Plumber | New York |
| 56 | Anna M Flynn | 22 | daughter | Stenographer | New York |
| 57 | James F Flynn | 16 | son | Office Boy | New York |
| 58 | John F Flynn | 9 | son | — | New York |
| 59 | Teresa Flynn | 46 | Sister | Signature | Ireland |
| 60 | Walter Roup | 42 | Head | Collector | New York |
| 61 | Mary J Roup | 45 | Wife | — | Ireland |
| 62 | Viola E Roup | 15 | daughter | Clerical | New York |
| 63 | Walter Roup | 13 | son | — | New York |
| 64 | John J Schine | 34 | Head | Policeman | New York |
| 65 | Mary A Schine | 38 | Wife | — | New York |
| 66 | Hilda Schine | 15 | daughter | Saleslady | New York |
| 67 | Anna V Schine | 6 | daughter | — | New York |
| 68 | Thomas Stanton | 42 | Head | Salesman | New York |
| 69 | Margaret Stanton | 39 | Wife | — | New York |
| 70 | Helen M Stanton | 18 | daughter | Stenographer | New York |
| 71 | Raymond L Stanton | 14 | son | High School | New York |
| 72 | Marjorie C Stanton | 12 | daughter | — | New York |
| 73 | William Kirk | 48 | Head | Steward | Ireland |
| 74 | Susie G Kirk | 38 | Wife | — | Ireland |
| 75 | Michael J Kirk | 18 | son | Clerk | New York |
| 76 | John W Kirk | 17 | son | Sailor | New York |
| 77 | Thomas Kirk | 36 | Cousin | — | Ireland |
| 78 | Margaret Croke | 46 | Head | — | Ireland |
| 79 | John J Croke | 20 | son | Clerk | New York |
| 80 | James P Croke | 18 | son | Chauffeur | New York |
| 81 | George C Croke | 13 | son | — | New York |
| 82 | Thomas F Croke | 12 | son | — | New York |
| 83 | Philip J Croke | 8 | son | — | New York |
| 84 | Anna Mulcahy | 28 | Sister | Dressmaker | Ireland |
| 85 | Abraham Goldberg | 57 | Head | Jeweler | Russia |
| 86 | Sarah Goldberg | 36 | Wife | — | New York |
| 87 | William Mckeon | 39 | Head | Piano Work | Connecticut |
| 88 | Catherine Mckeon | 38 | Wife | — | New York |
| 89 | Mario Negroni | 21 | Lodger | Manager | Porto Rico |
| 90 | Donald Bliss | 19 | Lodger | Draftsman | Pennsylvania |
| 91 | Thomas Mcmahon | 44 | Head | Manager | Ireland |
| 92 | Margaret Mcmahon THIS PERSON | 44 | Wife | — | Ireland |
| 93 | Marion Mcmahon | 17 | daughter | Stenographer | New York |
| 94 | Edward J Reddy | 54 | Head | Steamfitter | New York |
| 95 | Katherine F Reddy | 53 | Wife | — | New York |
| 96 | William Degnan | 40 | Nephew | Broker | New York |
| 97 | Edward S Miller | 32 | Head | Wholesale | Pennsylvania |
| 98 | Gertrude G Miller | 26 | Wife | — | New York |
| 99 | Marilyn J Miller | 2 | daughter | — | New York |
| 100 | Helen Sudden | 22 | Lodger | — | Ireland |
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)