TM
Thomas Mcmahon — 1930 US Census Record
Linked across censuses1930 United States Federal Census · New York, New York
Our Model Tree links this Thomas Mcmahon across the 1920, 1930 and 1940 US Censuses in New York, New York (XGBoost, ~Confirmed) — first a head (b.~1884), then head of a 4-person household.
Age 46
b. ~1884
Male
Head
Born: Ireland
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | New York, New York |
| Surname | McMahon |
| Given Name | Thomas |
| Relationship to Head | head |
| Sex | M |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | Ireland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1904 |
| Age at First Marriage | 23 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Additional Details | |
| Occupation | watchman |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Home Value / Rent | 30 |
| Radio Set | R |
| Veteran | yes |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
| Occupation | Watchman |
| Township / Ward | Manhattan Boro |
| Est. Birth Year | ~1884 |
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 1930 census.
| Name | Relation to head | Relative to Thomas | Age | Birth yr |
|---|---|---|---|---|
| Thomas Mcmahon | Head | — | 46 | ~1884 |
| Katie Mcmahon | Spouse | — | 46 | ~1884 |
| Sara Mcmahon | Daughter | — | 23 | ~1907 |
| Thomas Mcmahon | Son | — | 19 | ~1911 |
Census Appearances
1920
New York, …
Head, age 36
New York, New York · implied b. ~1884 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McMahon |
| Given Name | Thomas |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | Ireland |
| Year of Immigration | 1903 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Policeman |
| Industry | City |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Birth Country | Ireland |
| Year of Naturalization | 1908 |
| Birthplace (normalized) | ireland |
1930
New York, …
Head, age 46
New York, New York · implied b. ~1884 — 4 household members
| Surname | McMahon |
| Given Name | Thomas |
| Relationship to Head | head |
| Sex | M |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | Ireland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1904 |
| Age at First Marriage | 23 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | watchman |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Home Value / Rent | 30 |
| Radio Set | R |
| Veteran | yes |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1940
New-York-County, New …
Other, age 55
New-York-County, New York · implied b. ~1885 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McMahon |
| Given Name | Thomas |
| Relationship to Head | Brother |
| Sex | M |
| Color / Race | White |
| Age | 55 |
| Marital Status | Single |
| Birthplace | Ireland |
| 1935 Residence (City) | New York |
| Naturalization Status | Naturalized |
| Occupation | Unemployed |
| Highest Grade | No 8 |
| 1935 Residence | N.Y. |
| 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 Thomas Mcmahon across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Thomas Mcmahon
Head · 1930 · age 46 · b. ~1884 · New York
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — New York, New York
Open full size
1930 US Federal Census — New York, New York
Page Contents
50 people indexed on this census page (ia:1930:newyorkcensus00reel1551:0666)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Martha Rogers | 16 | daughter | None | New York |
| 2 | Billy Rogers | 5 | son | None | New York |
| 3 | Dorothy Rogers | 4 | daughter | None | New York |
| 4 | Charles Eisley | 35 | head | Laborer | France |
| 5 | Pauline Eisley | 31 | wife | None | France |
| 6 | Louis Eisley | 3 | son | None | France |
| 7 | Andrew Chotrey | 35 | boarder | Bus Boy | France |
| 8 | Thomas Mcmahon THIS PERSON | 46 | head | Watchman | Ireland |
| 9 | Katie Mcmahon | 46 | wife | None | Ireland |
| 10 | Thomas Mcmahon | 19 | son | Laundryman | New York |
| 11 | Sara Mcmahon | 23 | daughter | Stenographer | New York |
| 12 | Margaret Butler | 48 | head | None | Scotland |
| 13 | Frank Butler | 17 | son | Electrician | New Jersey |
| 14 | Harold Butler | 16 | son | Office Boy | New Jersey |
| 15 | Joseph Butler | 13 | son | Office Boy | New York |
| 16 | Edward Butler | 12 | son | None | New York |
| 17 | Willie Butler | 10 | son | None | New York |
| 18 | Margaret Butler | 7 | daughter | None | New York |
| 19 | Clara Butler | 7 | daughter | None | New York |
| 20 | Gerald Garcia | 42 | head | Photograph | Cuba |
| 21 | Josephine Garcia | 32 | wife | None | Spain |
| 22 | Josephine Garcia | 14 | daughter | None | New York |
| 23 | Angelitta Garcia | 11 | daughter | None | New York |
| 24 | Mildred Garcia | 9 | daughter | None | New York |
| 25 | Gerald Garcia | 6 | son | None | New York |
| 26 | Margaret Bradstreet | 44 | head | None | New York |
| 27 | Walter Helms | 42 | roomer | Chauffeur | Maine |
| 28 | James Flanegan | 31 | head | Watchman | Ireland |
| 29 | Thomas Poreate | 30 | head | Tailor | Italy |
| 30 | Georgiana Poreate | 24 | wife | None | Bohemia |
| 31 | Dorothy Poreate | 6 | daughter | None | New York |
| 32 | Michael Poreate | 5 | son | None | New York |
| 33 | James Finney | 54 | head | Clerk | California |
| 34 | Ignatz Marth | 27 | head | Clerk | Hungary |
| 35 | Julia Marth | 20 | wife | None | Hungary |
| 36 | Anthony Marth | 3 | son | None | New York |
| 37 | Emma Marth | 0 | daughter | None | New York |
| 38 | Daniel Fussell | 58 | head | Retired | New York |
| 39 | Carrie Fussell | 54 | wife | None | New York |
| 40 | Peter Fussell | 24 | son | Tel Operator | New York |
| 41 | Francis Fussell | 17 | grandson | None | New York |
| 42 | David Fussell | 13 | grandson | None | New York |
| 43 | Nancy Connor | 22 | roomer | Bookbinder | New York |
| 44 | John Scalio | 36 | head | Iceman | Italy |
| 45 | Anna Scalio | 34 | wife | None | Italy |
| 46 | Angelo Scalio | 11 | son | None | New York |
| 47 | Frank Scalio | 10 | son | None | New York |
| 48 | Julia Scalio | 9 | daughter | None | New York |
| 49 | Dorothy Scalio | 7 | daughter | None | New York |
| 50 | Joseph Scalio | 5 | son | None | New York |
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)