WM
William Mcmahon — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Hudson, New Jersey
Our Model Tree links this William Mcmahon across the 1920 and 1930 US Censuses in Hudson, New Jersey (XGBoost, ~Confirmed) — first a head (b.~1899), then head of a 7-person household.
Age 31
b. ~1899
Male
Head
Born: New Jersey
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Hudson, New Jersey |
| Surname | McMahon |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | New Jersey |
| Age at First Marriage | 18 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Additional Details | |
| Occupation | Stoker |
| Industry | Lehigh & W. RR |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 3000 |
| Radio Set | R |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
| Occupation | Stoker |
| Township / Ward | Jersey City |
| Est. Birth Year | ~1899 |
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 1930 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Gloria Mcmahon | Daughter | — | 4 | ~1926 |
| Gertrude Mcmahon | Spouse | — | 30 | ~1900 |
| William Mcmahon | Son | — | ~1930 | |
| William Mcmahon | Head | — | 31 | ~1899 |
| Walter Mcmahon | Son | — | 6 | ~1924 |
| Richard Mcmahon | Son | — | 1 | ~1929 |
| John Mcmahon | Son | — | 10 | ~1920 |
Census Appearances
1920
Hudson, New …
Head, age 21
Hudson, New Jersey · implied b. ~1899 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McMahon |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Married |
| Birthplace | New Jersey |
| Father's Birthplace | Ireland |
| Mother's Birthplace | English |
| Occupation | Laborer |
| Industry | Docks |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1930
Hudson, New …
Head, age 31
Hudson, New Jersey · implied b. ~1899 — 7 household members
| Surname | McMahon |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | New Jersey |
| Age at First Marriage | 18 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Stoker |
| Industry | Lehigh & W. RR |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 3000 |
| Radio Set | R |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
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 William Mcmahon across 2 US Census years (1920 and 1930) in Hudson, New Jersey, using XGBoost record linkage.
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This person
Anchor record
William Mcmahon
Head · 1930 · age 31 · b. ~1899 · New Jersey
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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 — Hudson, New Jersey
Open full size
1930 US Federal Census — Hudson, New Jersey
Page Contents
50 people indexed on this census page (ia:1930:newjerseycensus00reel1351:0229)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | William Mcmahon THIS PERSON | 31 | Head | Stoker | New Jersey |
| 2 | Gertrude Mcmahon | 30 | Wife | — | New Jersey |
| 3 | John Mcmahon | 10 | Son | — | New Jersey |
| 4 | Walter Mcmahon | 6 | Son | — | New Jersey |
| 5 | Gloria Mcmahon | 4 | Daughter | — | New Jersey |
| 6 | Richard Mcmahon | 1 | Son | — | New Jersey |
| 7 | William Mcmahon | 0 | Son | — | New Jersey |
| 8 | Raymond Witkoski | 42 | Head | Blacksmith | Poland |
| 9 | Mary Witkoski | 36 | Wife | — | Poland |
| 10 | Sophie Witkoski | 14 | Daughter | — | New Jersey |
| 11 | Eugenie Witkoski | 13 | Daughter | — | New Jersey |
| 12 | William Witkoski | 12 | Son | — | New Jersey |
| 13 | Helen Witkoski | 10 | Daughter | — | New Jersey |
| 14 | Sigmund Witkoski | 8 | Son | — | New Jersey |
| 15 | Fannie Witkoski | 7 | Daughter | — | New Jersey |
| 16 | Raymond Witkoski | 4 | Son | — | New Jersey |
| 17 | Joseph Kucyla | 42 | Head | Car Inspector | Poland |
| 18 | Elizabeth Kucyla | 42 | Wife | — | Poland |
| 19 | Wanda Kucyla | 17 | Daughter | Feeder | New Jersey |
| 20 | Theodore Kucyla | 12 | Son | — | New Jersey |
| 21 | May Kucyla | 5 | Daughter | — | New Jersey |
| 22 | Ida Kucyla | 4 | Daughter | — | New Jersey |
| 23 | Dorothy Kucyla | 1 | Daughter | — | New Jersey |
| 24 | Herbert Lawrence | 22 | Son in law | Mechanic | New York |
| 25 | Josephine Lawrence | 20 | Wife | — | New Jersey |
| 26 | Adam Skok | 48 | Head | Porter | Poland |
| 27 | Christine Skok | 47 | Wife | — | Poland |
| 28 | Stanley Skok | 21 | Son | Butcher | New Jersey |
| 29 | Josephine Skok | 11 | Daughter | — | New Jersey |
| 30 | Joseph Przeworski | 38 | Head | Proprietor | Poland |
| 31 | Stella Przeworski | 33 | Wife | — | Poland |
| 32 | Alfred Przeworski | 11 | Son | — | New York |
| 33 | Lester Przeworski | 9 | Son | — | New York |
| 34 | Frank Campione | 30 | Head | Mechanic | New York |
| 35 | May Campione | 31 | Wife | — | New Jersey |
| 36 | Robert Campione | 10 | Son | — | New Jersey |
| 37 | Anna Campione | 9 | Daughter | — | New Jersey |
| 38 | Frank Jr. Campione | 7 | Son | — | New Jersey |
| 39 | John Campione | 4 | Son | — | New Jersey |
| 40 | Dorothy Campione | 2 | Daughter | — | New Jersey |
| 41 | Theresa Campione | 1 | Daughter | — | New Jersey |
| 42 | Ignacy Kurtyka | 34 | Head | Laborer | Poland |
| 43 | Josephine Kurtyka | 35 | Wife | — | Poland |
| 44 | Edward Kurtyka | 16 | Son | — | New Jersey |
| 45 | John Kurtyka | 14 | Son | — | New Jersey |
| 46 | Helen Kurtyka | 12 | Daughter | — | New Jersey |
| 47 | Sophie Kurtyka | 8 | Daughter | — | New Jersey |
| 48 | Leunice Mane | 17 | Boarder | Typewriter | New Jersey |
| 49 | Stanislaw Mosewicz | 35 | Head | Laborer | Poland |
| 50 | Catherine Mosewicz | 33 | Wife | — | Poland |
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)