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Margaret Mcmahon — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Kings, New York
Our Model Tree links this Margaret Mcmahon across the 1900, 1910 and 1920 US Censuses in Kings, New York (XGBoost, ~Confirmed) — first a head (b.~1870), then head of a 4-person household.
Age 50
b. ~1870
Female
Head
Born: Ireland
Widowed
1920 Census Record Details
| Census Year | 1920 |
| Location | Kings, New York |
| Surname | McMahon |
| Given Name | Margaret |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 50 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| Year of Immigration | 1885 |
| 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 |
| Home Owned/Rented | R |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
| Township / Ward | Boro Brooklyn |
| Est. Birth Year | ~1870 |
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.
4 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to Margaret | Age | Birth yr |
|---|---|---|---|---|
| Nellie Mcmahon | Daughter | — | 21 | ~1899 |
| Catherine Mcmahon | Spouse | — | 17 | ~1903 |
| Margaret Mcmahon | Head | — | 50 | ~1870 |
| Margaret Mcmahon | Daughter | — | 19 | ~1901 |
Census Appearances
1900
Kings, New …
Head, age 31
Kings, New York · implied b. ~1869 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McMahon |
| Given Name | Margaret |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 30 |
| Marital Status | Single |
| Birthplace | Ireland |
| Birth Month | Aug |
| Birth Year | 1869 |
| Year of Immigration | 1883 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Stenographer |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1910
Kings, New …
Head, age 40
Kings, New York · implied b. ~1870 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McMahon |
| Given Name | Margaret |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 40 |
| Marital Status | Single |
| Birthplace | Ireland |
| Year of Immigration | 1885 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Fitter |
| Industry | Dresses |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1920
Kings, New …
Head, age 50
Kings, New York · implied b. ~1870 — 4 household members
| Surname | McMahon |
| Given Name | Margaret |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 50 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| Year of Immigration | 1885 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| 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 Kings, New York, using XGBoost record linkage.
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This person
Anchor record
Margaret Mcmahon
Head · 1920 · age 50 · b. ~1870 · 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 — Kings, New York
Open full size
1920 US Federal Census — Kings, New York
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu1156unit:0549)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Elizabeth Duffy | 20 | Daughter | Bank Clerk | New York |
| 52 | Josephine Duffy | 18 | Daughter | Bank Clerk | New York |
| 53 | Mary Duffy | 16 | Daughter | Stenographer | New York |
| 54 | Frank Jr Duffy | 13 | Son | — | New York |
| 55 | Sarah Duffy | 10 | Daughter | — | New York |
| 56 | John W James | 70 | Head | Watch Maker | England |
| 57 | Lottie James | 42 | Wife | — | England |
| 58 | Henry James | 7 | Son | — | New York |
| 59 | Alexander Madsen | 19 | Boarder | Machinist | Denmark |
| 60 | Sverre Stubstad | 27 | Boarder | Machinist | Norway |
| 61 | Sigurd Vittelsa | 25 | Boarder | Machinist | Norway |
| 62 | Eugene Erickson | 30 | Boarder | Machinist | Norway |
| 63 | Otto Meyer | 29 | Boarder | Machinist | New York |
| 64 | Peter Bilop | 25 | Boarder | Machinist | Norway |
| 65 | Harry J Mcdermott | 52 | Head | Laborer | New York |
| 66 | Mary Mcdermott | 50 | Wife | — | New York |
| 67 | Margaret Mcdermott | 25 | Daughter | Stenographer | New York |
| 68 | Joseph Mcdermott | 22 | Son | Bookkeeper | New York |
| 69 | Frank Mcdermott | 9 | Son | — | New York |
| 70 | Charles O'Malley | 35 | Head | Clerk | New York |
| 71 | Regina O'Malley | 30 | Wife | — | New York |
| 72 | Charles O'Malley | 6 | Son | — | New York |
| 73 | Regina O'Malley | 4 | Daughter | — | New York |
| 74 | Dorothy O'Malley | 1 | Daughter | — | New York |
| 75 | Sam Lee | 54 | Head | Laundry | China |
| 76 | Harold Jorgensen | 35 | Head | Pipe Fitter | Norway |
| 77 | Annie Jorgensen | 35 | Wife | — | Norway |
| 78 | Margaret Jorgensen | 11 | Daughter | — | Canada |
| 79 | Olaf Jorgensen | 8 | Son | — | Norway |
| 80 | William Barkins | 29 | Head | Machinist | New Jersey |
| 81 | Anetta Barkins | 29 | Wife | — | New York |
| 82 | Helen Barkins | 9 | Daughter | — | New York |
| 83 | Loretta Barkins | 3 | Daughter | — | New York |
| 84 | Edward Barkins | 1 | Son | — | New York |
| 85 | May Martin | 45 | Head | — | Ireland |
| 86 | Elizabeth Martin | 18 | Niece | Clerk | New York |
| 87 | David Martin | 15 | Nephew | — | New York |
| 88 | Mary Kenwood | 47 | Head | — | Scotland |
| 89 | John Kenwood | 18 | Son | Clerk | New York |
| 90 | Margaret Kenwood | 16 | Daughter | — | New York |
| 91 | Arthur Kenwood | 12 | Son | — | New York |
| 92 | Elizabeth Kenwood | 10 | Daughter | — | New York |
| 93 | James Kenwood | 22 | Boarder | Plumber | Scotland |
| 94 | Patrick Reilly | 65 | Head | — | Ireland |
| 95 | Catherine Reilly | 65 | Wife | — | Ireland |
| 96 | Margaret Reilly | 30 | Daughter | — | New York |
| 97 | Margaret Mcmahon THIS PERSON | 50 | Head | — | Ireland |
| 98 | Nellie Mcmahon | 21 | Daughter | Laundress | New York |
| 99 | Margaret Mcmahon | 19 | Daughter | Laundress | New York |
| 100 | Catherine Mcmahon | 17 | Wife | — | 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)