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John Mahoney — 1930 US Census Record
Model Tree available1930 United States Federal Census · Marion, Indiana
Our Model Tree links this John Mahoney across the 1910, 1920 and 1930 US Censuses in Marion, Indiana (XGBoost, ~Confirmed), with identified parents Jeremiah & John — first a son (b.~1905), then head of a 12-person household.
Age 25
b. ~1905
Male
Son
Born: Nebraska
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Marion, Indiana |
| Surname | Mahoney |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Nebraska |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Nebraska |
| Additional Details | |
| Occupation | Printer |
| Industry | Printing Shop |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Nebraska |
| Birth Country | United States |
| Birthplace (normalized) | nebraska |
| Occupation | Printer |
| Township / Ward | Indianapolis City |
| Est. Birth Year | ~1905 |
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.
12 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Marie Mcmillan | Daughter | — | 39 | ~1891 |
| Elizabeth Mahoney | Daughter | — | 22 | ~1908 |
| Elizabeth Mahoney | Head | — | 55 | ~1875 |
| Robert Mcmillan | Other | — | 6 | ~1924 |
| Mary Mcdonald | Other | — | 63 | ~1867 |
| Betty Mcmillan | Other | — | 9 | ~1921 |
| Tim Lynch | Other | — | 76 | ~1854 |
| Madaline Mcmillan | Other | — | 8 | ~1922 |
| Phillip Mcmillan | Other | — | 44 | ~1886 |
| Wilfred Mahoney | Son | — | 29 | ~1901 |
| John Mahoney | Son | — | 25 | ~1905 |
| Harry Mahoney | Son | — | 20 | ~1910 |
Census Appearances
1910
Marion, Indiana
Son, age 5
Marion, Indiana · implied b. ~1905 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mahoney |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Nebraska |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Nebraska |
| Birth State | Nebraska |
| Birth Country | United States |
| Birthplace (normalized) | nebraska |
1920
Marion, Indiana
Son, age 14
Marion, Indiana · implied b. ~1906 — 11 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mahoney |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Nebraska |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Nebraska |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Nebraska |
| Birth Country | United States |
| Birthplace (normalized) | nebraska |
1930
Marion, Indiana
Son, age 25
Marion, Indiana · implied b. ~1905 — 12 household members
| Surname | Mahoney |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Nebraska |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Nebraska |
| Occupation | Printer |
| Industry | Printing Shop |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Nebraska |
| Birth Country | United States |
| Birthplace (normalized) | nebraska |
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 John Mahoney across 3 US Census years (1910, 1920 and 1930) in Marion, Indiana, using XGBoost record linkage. Identified parents: father Jeremiah Mahoney (~0.92 confidence) and father John Mahoney (~0.92 confidence) and mother Elizabeth Mahoney (~0.92 confidence) and mother Elizabeth Mahoney (~0.92 confidence) and mother Mary Mahoney (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Jeremiah Mahoney
b. ~1874
Source father
● Household
· direct · ~0.92
Father
John Mahoney
b. ~1874
Source father
● Household
· direct · ~0.92
Mother
Elizabeth Mahoney
b. ~1875
Source mother
● Household
· direct · ~0.92
Mother
Elizabeth Mahoney
b. ~1875
Source mother
● Household
· direct · ~0.92
Mother
Mary Mahoney
b. ~1876
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Mahoney
Son · 1930 · age 25 · b. ~1905 · Indiana
★ You are viewing this record
Sibling
Harry Mahoney
Sibling · 1930 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Wilfred Mahoney
Sibling · 1930 · age 29
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Marie Mcmillan
Sibling · 1930 · age 39
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Elizabeth Mahoney
Sibling · 1930 · age 22
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 — Marion, Indiana
Open full size
1930 US Federal Census — Marion, Indiana
Page Contents
50 people indexed on this census page (ia:1930:indianacensus00reel614:0847)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Herman Steinkoyman | 24 | Head | Grocery | Poland |
| 2 | Olga Steinkoyman | 32 | Wife | — | Germany |
| 3 | Lawrence C. Mayes | 31 | Head | Box Maker | Tennessee |
| 4 | Mayme Mayes | 31 | Wife | — | Tennessee |
| 5 | Mildred O. Mayes | 11 | Daughter | — | Tennessee |
| 6 | Calean Mayes | 10 | Daughter | — | Tennessee |
| 7 | J. Mcalister | 30 | Boarder | Box Maker | Tennessee |
| 8 | Elizabeth Mahoney | 55 | Head | — | Nebraska |
| 9 | Wilfred M. Mahoney | 29 | Son | Pressman | Nebraska |
| 10 | John Mahoney THIS PERSON | 25 | Son | Printer | Nebraska |
| 11 | Elizabeth C. Mahoney | 22 | Daughter | Instructor | Nebraska |
| 12 | Harry W. Mahoney | 20 | Son | Presser | Nebraska |
| 13 | Tim Lynch | 76 | Brother | — | Nebraska |
| 14 | Mary A. Mcdonald | 63 | Sister | — | Nebraska |
| 15 | Phillip Mcmillan | 44 | Son-in-law | Boilermaker | Nebraska |
| 16 | Marie Mcmillan | 39 | Daughter | — | Nebraska |
| 17 | Betty N. Mcmillan | 9 | Granddaughter | — | Indiana |
| 18 | Madaline E. Mcmillan | 8 | Granddaughter | — | Indiana |
| 19 | Robert Mcmillan | 6 | Grandson | — | Indiana |
| 20 | Clifford E. Donovan | 27 | Head | Railroad Clerk | Ohio |
| 21 | Margaret Donovan | 56 | Mother | — | Ohio |
| 22 | Alexander Edwards | 73 | Head | — | Scotland |
| 23 | Isaac Edwards | 40 | Son | Labor | Indiana |
| 24 | William Underwood | 32 | Head | Laborer | Illinois |
| 25 | Elsie Underwood | 41 | Wife | — | Indiana |
| 26 | Albertie Stewart | 9 | Granddaughter | — | Indiana |
| 27 | Sarah Millon | 86 | Head | — | Indiana |
| 28 | James H. Millon | 60 | Son | — | Indiana |
| 29 | Joseph P. Aton | 37 | Head | Carpenter | Indiana |
| 30 | Opal N. Aton | 34 | Wife | — | Indiana |
| 31 | Donald J. Aton | 13 | Son | — | Indiana |
| 32 | Maxine J. Aton | 11 | Daughter | — | Indiana |
| 33 | Opal J. Aton | 5 | Daughter | — | Indiana |
| 34 | Gene J. Aton | 3 | Son | — | Indiana |
| 35 | Barton Okey | 52 | Head | — | Indiana |
| 36 | Lillian Okey | 52 | Wife | — | Indiana |
| 37 | Alice Compton | 21 | Step-daughter | Inspector | Indiana |
| 38 | Ruth Brackett | 15 | Step-daughter | — | Indiana |
| 39 | Thomas Thas | 70 | Head | — | Irish Free State |
| 40 | Herbert Cox | 44 | Head | Polishing Machine | Kentucky |
| 41 | Effie Cox | 41 | Wife | — | Kentucky |
| 42 | Lafrom Vedma Cox | 21 | Daughter | Inspector | Kentucky |
| 43 | Thaddeus Cox | 21 | Son-in-law | Laborer | Mississippi |
| 44 | Gilbert Cox | 20 | Son | Washing Machine | Kentucky |
| 45 | Frank H. Talbert | 43 | Head | Floor Man | Ohio |
| 46 | Margaret Talbert | 45 | Wife | — | Ohio |
| 47 | Bertha Mathews | 52 | Head | — | Indiana |
| 48 | Claudia M. Mathews | 27 | Daughter | Bookkeeper | Indiana |
| 49 | Dorothy Mathews | 21 | Daughter | Saleslady | Indiana |
| 50 | Albert Williams | 26 | Head | Laborer | Indiana |
Pedigree Summary
John + 4 siblings
Gen 1 · 5 parents
~0.92
Max depth 4 (1900–1950 window)
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)