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James Mahoney — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Butler, Iowa
Our Model Tree links this James Mahoney across the 1900, 1910, 1920 and 1930 US Censuses in Butler, Iowa (XGBoost, ~Confirmed) — first a head (b.~1862), then head of a 5-person household.
Age 68
b. ~1862
Male
Head
Born: Wisconsin
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Butler, Iowa |
| Surname | Mahoney |
| Given Name | James A. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 68 |
| Marital Status | Married |
| Birthplace | Wisconsin |
| Age at First Marriage | 31 |
| Father's Birthplace | Irish Free State |
| Mother's Birthplace | Wisconsin |
| Additional Details | |
| Occupation | Farmer |
| Industry | General Farm |
| Class of Worker | O |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
| Occupation | Farmer |
| Township / Ward | Fremont Township |
| Est. Birth Year | ~1862 |
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.
5 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| Ellen Mahoney | Daughter | — | 28 | ~1902 |
| Ellen Mahoney | Spouse | — | 61 | ~1869 |
| Rex Scorles | Other | — | 28 | ~1902 |
| James Mahoney | Head | — | 68 | ~1862 |
| William Mahoney | Son | — | 30 | ~1900 |
Census Appearances
1900
Butler, Iowa
Head, age 35
Butler, Iowa · implied b. ~1865 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mahoney |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 34 |
| Marital Status | Married |
| Birthplace | Wisconsin |
| Birth Month | Aug |
| Birth Year | 1865 |
| Year of Immigration | 1883 |
| Naturalization Status | First papers filed |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Wisconsin |
| Occupation | Farmer |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
1910
Butler, Iowa
Head, age 48
Butler, Iowa · implied b. ~1862 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mahony |
| Given Name | James M |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 48 |
| Marital Status | Married |
| Birthplace | Wisconsin |
| Years Married | 16 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Wisconsin |
| Occupation | Farmer |
| Industry | General Farm |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
1920
Butler, Iowa
Head, age 57
Butler, Iowa · implied b. ~1863 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mahoney |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 57 |
| Marital Status | Married |
| Birthplace | Wisconsin |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Farmer |
| Industry | General Farm |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | O |
| Home Free/Mortgaged | F |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
1930
Butler, Iowa
Head, age 68
Butler, Iowa · implied b. ~1862 — 5 household members
| Surname | Mahoney |
| Given Name | James A. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 68 |
| Marital Status | Married |
| Birthplace | Wisconsin |
| Age at First Marriage | 31 |
| Father's Birthplace | Irish Free State |
| Mother's Birthplace | Wisconsin |
| Occupation | Farmer |
| Industry | General Farm |
| Class of Worker | O |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
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 James Mahoney across 4 US Census years (1900, 1910, 1920 and 1930) in Butler, Iowa, using XGBoost record linkage.
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This person
Anchor record
James Mahoney
Head · 1930 · age 68 · b. ~1862 · Iowa
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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 — Butler, Iowa
Open full size
1930 US Federal Census — Butler, Iowa
Page Contents
50 people indexed on this census page (ia:1930:iowacensus00reel645:0590)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Eelaje Hopkes | 23 | Daughter | — | Iowa |
| 2 | John Mehmen | 15 | Hired Man | Laborer | Iowa |
| 3 | Adam H. Jacobs | 44 | Head | Farmer | Iowa |
| 4 | Mary Jacobs | 49 | Wife | — | Germany |
| 5 | Forest J. Jacobs | 19 | Son | — | Iowa |
| 6 | Ralph A. Jacobs | 16 | Son | — | Iowa |
| 7 | Harold H. Jacobs | 14 | Son | — | Iowa |
| 8 | Gladys Jacobs | 13 | Daughter | — | Iowa |
| 9 | Dan J. Mahoney | 32 | Head | Farmer | Iowa |
| 10 | Ival Mahoney | 29 | Wife | — | Iowa |
| 11 | Norma J. Mahoney | 5 | Daughter | — | Iowa |
| 12 | Lucille D. Mahoney | 3 | Daughter | — | Iowa |
| 13 | Allice M. Mahoney | 1 | Daughter | — | Iowa |
| 14 | Jim Hewitt | 60 | Hired Man | Laborer | Wisconsin |
| 15 | Henry Pals | 46 | Head | Farmer | Iowa |
| 16 | Trientine Pals | 46 | Wife | — | Iowa |
| 17 | Chester Pals | 18 | Son | — | Iowa |
| 18 | Mary J. Pals | 8 | Daughter | — | Iowa |
| 19 | Edmund Hedeking | 37 | Head | Farmer | Iowa |
| 20 | Louise Hedeking | 37 | Wife | — | Germany |
| 21 | Lily Hedeking | 14 | Daughter | — | Iowa |
| 22 | Herman Hedeking | 12 | Son | — | Iowa |
| 23 | Clarence Hedeking | 9 | Son | — | Iowa |
| 24 | Raymond Hedeking | 6 | Son | — | Iowa |
| 25 | Helmut Hedeking | 26 | Head | Farmer | Iowa |
| 26 | Bertha Hedeking | 25 | Wife | — | Iowa |
| 27 | Lavola Hedeking | 2 | Daughter | — | Iowa |
| 28 | James A. Mahoney THIS PERSON | 68 | Head | Farmer | Wisconsin |
| 29 | Ellen M. Mahoney | 61 | Wife | — | Iowa |
| 30 | William E. Mahoney | 30 | Son | Laborer | Iowa |
| 31 | Ellen M. Mahoney | 28 | Daughter | Teacher | Iowa |
| 32 | Rex Scorles | 28 | Hired Man | Laborer | Minnesota |
| 33 | Harm B. Reints | 62 | Head | Farmer | Holland |
| 34 | Lena Reints | 48 | Wife | — | Iowa |
| 35 | Harm Reints | 19 | Son | — | Iowa |
| 36 | John Reints | 17 | Son | — | Iowa |
| 37 | Lena Reints | 7 | Daughter | — | Iowa |
| 38 | Fred Hamke | 70 | Head | Farmer | Germany |
| 39 | Amanda Hamke | 74 | Wife | — | Iowa |
| 40 | Christine Nissen | 74 | Head | — | Denmark |
| 41 | Nis Nissen | 46 | Son | Farmer | Iowa |
| 42 | Peter Nissen | 45 | Son | Farmer | Iowa |
| 43 | Arthur Nissen | 35 | Son | Laborer | Iowa |
| 44 | Ralph Head | 32 | Head | Farmer | Iowa |
| 45 | Ruth Head | 22 | Wife | — | Iowa |
| 46 | Leroy Head | 1 | Son | — | Iowa |
| 47 | Elfas B. Meyers | 52 | Head | Farmer | Iowa |
| 48 | Edna Meyers | 48 | Wife | — | Iowa |
| 49 | Henry Maloy | 65 | Head | Farmer | Iowa |
| 50 | Roy Maloy | 18 | Son | — | Iowa |
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)