WM
William Mahoney — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Cuyahoga, Ohio
Our Model Tree links this William Mahoney across the 1920 and 1930 US Censuses in Cuyahoga, Ohio (XGBoost, ~Confirmed) — first a son (b.~1912), then head of a 10-person household.
Age 18
b. ~1912
Male
Son
Born: Ohio
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Cuyahoga, Ohio |
| Surname | Mahoney |
| Given Name | William Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Ohio |
| Additional Details | |
| Occupation | Racer |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Occupation | Racer |
| Township / Ward | City Of Cleveland |
| Est. Birth Year | ~1912 |
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.
10 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| William Mahoney | Son | — | 18 | ~1912 |
| Berna Mahoney | Daughter | — | 5 | ~1925 |
| Margaret Mahoney | Daughter | — | 20 | ~1910 |
| Bernice Mahoney | Daughter | — | 12 | ~1918 |
| Gertrude Mahoney | Spouse | — | 41 | ~1889 |
| William Mahoney | Head | — | 70 | ~1860 |
| Donald Mahoney | Son | — | 2 | ~1928 |
| John Mahoney | Son | — | 16 | ~1914 |
| Eileen Mahoney | Daughter | — | 7 | ~1923 |
| James Mahoney | Son | — | 15 | ~1915 |
Census Appearances
1920
Cuyahoga, Ohio
Son, age 8
Cuyahoga, Ohio · implied b. ~1912 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mahony |
| Given Name | William |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Ohio |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1930
Cuyahoga, Ohio
Son, age 18
Cuyahoga, Ohio · implied b. ~1912 — 10 household members
| Surname | Mahoney |
| Given Name | William Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Ohio |
| Occupation | Racer |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
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 Mahoney across 2 US Census years (1920 and 1930) in Cuyahoga, Ohio, using XGBoost record linkage.
Show:
This person
Anchor record
William Mahoney
Son · 1930 · age 18 · b. ~1912 · Ohio
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Sibling
John Mahoney
Sibling · 1930 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Mahoney
Sibling · 1930 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Donald Mahoney
Sibling · 1930 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Berna Mahoney
Sibling · 1930 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Bernice Mahoney
Sibling · 1930 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Eileen Mahoney
Sibling · 1930 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Mahoney
Sibling · 1930 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Cuyahoga, Ohio
Open full size
1930 US Federal Census — Cuyahoga, Ohio
Page Contents
50 people indexed on this census page (ia:1930:ohiocensus00reel1782:0194)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Vander Grant | 41 | Head | Machinist | Roumania |
| 2 | Agnes Grant | 47 | Wife | — | Roumania |
| 3 | Paul Grant | 23 | Son | Punch Presser | Roumania |
| 4 | Alvin Grant | 20 | Son | Boiler Maker Apprentice | Ohio |
| 5 | Margaret Grant | 18 | Daughter | — | Ohio |
| 6 | Hilda Grant | 16 | Daughter | — | Ohio |
| 7 | Anton Maier | 43 | Head | Carpenter | Roumania |
| 8 | Mary Maier | 37 | Wife | Paper Maker | Roumania |
| 9 | Wanda Rindinger | 18 | Step-daughter | Paper Box Maker | Roumania |
| 10 | Elizabeth Rindinger | 13 | Step-daughter | — | Roumania |
| 11 | Mary Maier | 7 | Daughter | — | Roumania |
| 12 | Frank Nithgal | 35 | Head | Boiler Maker | Austria |
| 13 | Catherine Nithgal | 27 | Wife | — | Austria |
| 14 | Frank Nithgal | 8 | Son | — | Ohio |
| 15 | Eleanor Nithgal | 2 | Daughter | — | Ohio |
| 16 | Ernest Mohrsmith | 18 | Step-son | Painter | Ohio |
| 17 | William Mahoney | 70 | Head | Superintendent | Pennsylvania |
| 18 | Gertrude Mahoney | 41 | Wife | — | Ohio |
| 19 | Margaret Mahoney | 20 | Daughter | — | Ohio |
| 20 | William Jr. Mahoney THIS PERSON | 18 | Son | Racer | Ohio |
| 21 | John Mahoney | 16 | Son | Delivery Boy | Ohio |
| 22 | James Mahoney | 15 | Son | — | Ohio |
| 23 | Bernice Mahoney | 12 | Daughter | — | Ohio |
| 24 | Eileen Mahoney | 7 | Daughter | — | Ohio |
| 25 | Berna Mahoney | 5 | Daughter | — | Ohio |
| 26 | Donald Mahoney | 2 | Son | — | Ohio |
| 27 | Gilbert R. Bodger | 55 | Head | Foreman | Ohio |
| 28 | Ella M. Bodger | 56 | Wife | — | Ohio |
| 29 | Norma Machenna | 13 | Grand-daughter | — | Ohio |
| 30 | Matthew Durbin | 65 | Head | Boiler Maker | Irish Free State |
| 31 | Mary Rockford | 74 | Sister | — | England |
| 32 | Andrew Horak | 62 | Head | — | Jugoslavia |
| 33 | Anna Horak | 26 | Daughter | — | Ohio |
| 34 | Frank Horak | 24 | Son | Laborer | Ohio |
| 35 | Frank Hribar | 50 | Head | Bundler | Jugoslavia |
| 36 | Pauline Hribar | 42 | Wife | — | Jugoslavia |
| 37 | Pauline Jr. Hribar | 5 | Daughter | — | Ohio |
| 38 | Frank Jr. Hribar | 3 | Son | — | Ohio |
| 39 | William T. Robinson | 38 | Head | Brakeman | New York |
| 40 | Lydia H. Robinson | 33 | Wife | — | New York |
| 41 | Thomas E. Robinson | 7 | Son | — | Ohio |
| 42 | William M. Robinson | 6 | Son | — | Ohio |
| 43 | John H. Robinson | 4 | Son | — | Ohio |
| 44 | Edward J. Robinson | 3 | Son | — | Ohio |
| 45 | Hannah Robinson | 63 | Mother | Molder | Canada English |
| 46 | William H. Crum | 70 | Boarder | Switchman | Michigan |
| 47 | Paul Vidmar | 45 | Head | Crane Operator | Jugoslavia |
| 48 | Caroline Vidmar | 40 | Wife | — | Jugoslavia |
| 49 | Margaret Vidmar | 21 | Daughter | Sewing | Ohio |
| 50 | Mary Vidmar | 17 | Daughter | — | Ohio |
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)