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William Mcmahon — 1930 US Census Record

Linked across censuses

1930 United States Federal Census · Lucas, Ohio

Our Model Tree links this William Mcmahon across the 1920 and 1930 US Censuses in Lucas, Ohio (XGBoost, ~Confirmed) — first a son (b.~1916), then head of a 7-person household.

Age 14 b. ~1916 Male Son Born: Ohio Single

1930 Census Record Details

Census Year1930
LocationLucas, Ohio
SurnameMcMahon
Given NameWilliam
Relationship to HeadSon
SexM
Color / RaceWhite
Age14
Marital StatusSingle
BirthplaceOhio
Father's BirthplaceOhio
Mother's BirthplaceOhio
Additional Details
Can Read/WriteYes
Birth StateOhio
Birth CountryUnited States
Birthplace (normalized)ohio
Township / WardToledo City
Est. Birth Year~1916

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
Marian Mcmahon Daughter — 6 ~1924
Timothy Mcmahon Daughter — 11 ~1919
William Mcmahon Son — 14 ~1916
William Mcmahon Head — 35 ~1895
Rachael Mcmahon Daughter — 12 ~1918
Darlene Mcmahon Daughter — 6 ~1924
Edna Mcmahon Spouse — 33 ~1897

Census Appearances

1920
Lucas, Ohio
Son, age 4
Lucas, Ohio · implied b. ~1916 — 5 household members
●  Primary link · ~Confirmed · 2 sources
XGBoost Household
Surname McMahon
Given Name William
Relationship to Head Son
Sex M
Color / Race White
Age 4
Marital Status Single
Birthplace Ohio
Father's Birthplace Ohio
Mother's Birthplace Ohio
Birth State Ohio
Birth Country United States
Birthplace (normalized) ohio
1930
Lucas, Ohio
Son, age 14
Lucas, Ohio · implied b. ~1916 — 7 household members
Surname McMahon
Given Name William
Relationship to Head Son
Sex M
Color / Race White
Age 14
Marital Status Single
Birthplace Ohio
Father's Birthplace Ohio
Mother's Birthplace Ohio
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.
Linked across censuses
Our Model Tree links William Mcmahon across 2 US Census years (1920 and 1930) in Lucas, Ohio, using XGBoost record linkage.
Show:
This person
Anchor record
William Mcmahon
Son · 1930 · age 14 · b. ~1916 · Ohio
★ You are viewing this record
Sibling
Darlene Mcmahon
Sibling · 1930 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rachael Mcmahon
Sibling · 1930 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Timothy Mcmahon
Sibling · 1930 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Marian Mcmahon
Sibling · 1930 · age 6
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 — Lucas, Ohio Open full size

Page Contents

48 people indexed on this census page (ia:1930:ohiocensus00reel1837rs:0608)

Line Name Age Relation Occupation Birthplace
1 Oscar F Harpster 29 Son-in-law Inspector Ohio
2 Iona Harpster 27 Daughter Stenographer Michigan
3 William Zimmerman 45 Boarder Laborer Indiana
4 William Mcmahon 35 Head Electrician Ohio
5 Edna Mcmahon 33 Wife — Ohio
6 William Mcmahon THIS PERSON 14 Son — Ohio
7 Rachael Ann Mcmahon 12 Daughter — Ohio
8 Timothy Mcmahon 11 Daughter — Ohio
9 Marian Mcmahon 6 Daughter — Ohio
10 Darlene Mcmahon 6 Daughter — Ohio
11 Roy G Iskins 42 Head Foreman Missouri
12 Florence Iskins 35 Wife — Missouri
13 Ethel Iskins 16 Daughter — Missouri
14 Violet Iskins 14 Daughter — Missouri
15 Charles Iskins 13 Son — Missouri
16 David Iskins 11 Son — Ohio
17 Mary Finney 65 Mother-in-law — Missouri
18 Anthony Luefer 65 Head Gardener Germany
19 Minnie Luefer 63 Wife — Germany
20 Karl Luefer 30 Son Sheet Metal Worker Ohio
21 Myron Wiltachack 28 Nephew Assembler Michigan
23 William E Block 38 Head Rail Roader Michigan
24 Bernice Block 35 Wife — Ohio
25 Helen Block 15 Daughter — Ohio
26 Dorothy Block 13 Daughter — Ohio
27 Howard B Scott 31 Head Cook Clerk Indiana
28 Edna Scott 27 Wife — Indiana
29 Marjorie Scott 9 Daughter — Indiana
30 Vivian Luckerland 47 Head Laundress Ohio
31 Robert Luckerland 19 Son — Ohio
32 Mary Gansley 21 Lodger Inspector Ohio
33 David H Allison 53 Head Moulder Ohio
34 Lulu Allison 49 Wife — Ohio
35 Barbara Guchey 80 Mother — Ohio
36 Jessie Daily 56 Head — Michigan
37 Louis Lenequet 71 Head Metal Worker New York
38 Rosalie Lenequet 65 Wife — France
39 Sylvanus Lenequet 37 Son Trucker Ohio
40 Louis Jr Lenequet 34 Son Driver Ohio
41 Mary Jane Lenequet 94 Mother — France
42 J. G. Grainger 44 Head Auto Repair Ohio
43 Elsie Grainger 42 Wife — Michigan
44 Ruth Grainger 17 Daughter — Ohio
45 Nola Grainger 15 Daughter — Ohio
46 Alworth Grainger 13 Son — Ohio
47 William Grainger 9 Son — Ohio
48 William Freeworth 68 Father-in-law — Germany
49 Richard B Scott 7 Son — Indiana

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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)

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