WM
William Mcmahon — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Cuyahoga, Ohio
Our Model Tree links this William Mcmahon across the 1910, 1920 and 1930 US Censuses in Cuyahoga, Ohio (XGBoost, ~Confirmed) — first a head (b.~1874), then head of a 4-person household.
Age 56
b. ~1874
Male
Head
Born: Ohio
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Cuyahoga, Ohio |
| Surname | McMahon |
| Given Name | William J. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 56 |
| Marital Status | Married |
| Birthplace | Ohio |
| Age at First Marriage | 34 |
| Father's Birthplace | United States |
| Mother's Birthplace | Irish Free State |
| Additional Details | |
| Occupation | Fireman |
| Industry | City |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 6000 |
| Radio Set | R |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Occupation | Fireman |
| Township / Ward | Cleveland City |
| Est. Birth Year | ~1874 |
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 William | Age | Birth yr |
|---|---|---|---|---|
| William Mcmahon | Head | — | 56 | ~1874 |
| Frances Mcmahon | Daughter | — | 10 | ~1920 |
| Helen Mcmahon | Daughter | — | 12 | ~1918 |
| Fannie Mcmahon | Other | — | 50 | ~1880 |
Census Appearances
1910
Cuyahoga, Ohio
Head, age 35
Cuyahoga, Ohio · implied b. ~1875 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McMahon |
| Given Name | William J |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Ohio |
| Years Married | 3 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Fireman |
| Industry | City |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1920
Cuyahoga, Ohio
Head, age 46
Cuyahoga, Ohio · implied b. ~1874 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McMahon |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | Ohio |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Fireman |
| Industry | City |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1930
Cuyahoga, Ohio
Head, age 56
Cuyahoga, Ohio · implied b. ~1874 — 4 household members
| Surname | McMahon |
| Given Name | William J. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 56 |
| Marital Status | Married |
| Birthplace | Ohio |
| Age at First Marriage | 34 |
| Father's Birthplace | United States |
| Mother's Birthplace | Irish Free State |
| Occupation | Fireman |
| Industry | City |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 6000 |
| Radio Set | R |
| 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 Mcmahon across 3 US Census years (1910, 1920 and 1930) in Cuyahoga, Ohio, using XGBoost record linkage.
Show:
This person
Anchor record
William Mcmahon
Head · 1930 · age 56 · b. ~1874 · Ohio
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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 — Cuyahoga, Ohio
Open full size
1930 US Federal Census — Cuyahoga, Ohio
Page Contents
50 people indexed on this census page (ia:1930:ohiocensus00reel1777:0113)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Harry W. Smith | 26 | Head | Shipping Clerk | Ohio |
| 52 | Elsie M. Smith | 30 | Wife-H | — | Ohio |
| 53 | August J. Tepper | 44 | Head | Machinist | Ohio |
| 54 | Ida Tepper | 49 | Sister | — | Germany |
| 55 | Joseph W. Baryas | 31 | Head | Switchman | Michigan |
| 56 | Marion M. Baryas | 30 | Wife-H | — | Ohio |
| 57 | Eleanor Baryas | 7 | Daughter | — | Ohio |
| 58 | Henry A. Herdt | 38 | Head | Salesman | Ohio |
| 59 | Maude L. Herdt | 40 | Wife-H | — | Pennsylvania |
| 60 | Joseph C. Harmony | 22 | Son | Foreman | Pennsylvania |
| 61 | Mary Jane Heidt | 5 | Son | — | Ohio |
| 62 | Angelo Castrigano | 52 | Head-H | — | Kentucky |
| 63 | Michael Castrigano | 20 | Son | Barber | Ohio |
| 64 | Louise Castrigano | 18 | Daughter | Clerk | Ohio |
| 65 | Daniel Castrigano | 13 | Son | — | Ohio |
| 66 | Theresa Lanese | 23 | Daughter | — | Ohio |
| 67 | John J. Lanese | 3 | Grandson | — | Ohio |
| 68 | Donald Lanese | 1 | Grandson | — | Ohio |
| 69 | William Fleming | 23 | Head | Salesman | Germany |
| 70 | Frida Fleming | 21 | Wife-H | — | Germany |
| 71 | Richard W. Fleming | 2 | Son | — | New York |
| 72 | Charles S. Griffith | 33 | Head | Salesman | Illinois |
| 73 | Dorothy S. Griffith | 36 | Wife-H | — | Missouri |
| 74 | John R. Askins | 53 | Head | Tailor | Ohio |
| 75 | Hattie M. Askins | 44 | Wife-H | — | Ohio |
| 76 | Raymond C. Askins | 17 | Son | Salesman | Ohio |
| 77 | Philip J. Wuerth | 51 | Head | — | Germany |
| 78 | Barbara Wuerth | 77 | Wife-H | — | Ohio |
| 79 | Caroline Wuerth | 50 | Daughter | Instructor | Ohio |
| 80 | William J. Mcmahon THIS PERSON | 56 | Head | Fireman | Ohio |
| 81 | Fannie L. Mcmahon | 50 | Wife-H | — | Ohio |
| 82 | Helen J. Mcmahon | 12 | Daughter | — | Ohio |
| 83 | Frances R. Mcmahon | 10 | Daughter | — | Ohio |
| 84 | Alfred H. Aaronson | 73 | Head | Machinist | New Jersey |
| 85 | Imme Aaronson | 69 | Wife-H | — | New York |
| 86 | Arlene L. Myron | 21 | Granddaughter | Stenographer | Ohio |
| 87 | Ralph Macintosh | 50 | Head | Bailiff | Canada-English |
| 88 | Mae E. Macintosh | 50 | Wife-H | — | New York |
| 89 | Frank Baltrusehaetus | 56 | Head | Toolgrinder | Lithuania |
| 90 | Marcella Baltrusehaetus | 47 | Wife-H | — | Lithuania |
| 91 | Rudolph Klein | 33 | Lodger | Tailor | Hungary |
| 92 | Herman Fessler | 53 | Head | Instructor | Germany |
| 93 | Hulda A. Fessler | 46 | Wife-H | — | Germany |
| 94 | Herman C. Fessler | 24 | Nephew | Cabinet-Maker | Germany |
| 95 | Walter H. Fessler | 21 | Nephew | — | Ohio |
| 96 | David J. Shanks | 63 | Head | Agent | Indiana |
| 97 | Artie M. Shanks | 57 | Wife-H | — | Indiana |
| 98 | Mae M. Shanks | 36 | Daughter | Stenographer | Indiana |
| 99 | Ralph R. Shanks | 13 | Grandson | — | Indiana |
| 100 | Left Vacant | None | through error | — | — |
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)