WM
William Mahoney — 1910 US Census Record
Linked across censuses1910 United States Federal Census · Calhoun, Iowa
Our Model Tree links this William Mahoney across the 1910, 1920 and 1930 US Censuses in Calhoun, Iowa (XGBoost, ~Confirmed) — first a head (b.~1849), then head of a 4-person household.
Age 61
b. ~1849
Male
Head
Born: Wisconsin
Married
1910 Census Record Details
| Census Year | 1910 |
| Location | Calhoun, Iowa |
| Surname | Mahoney |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 61 |
| Marital Status | Married |
| Birthplace | Wisconsin |
| Years Married | 37 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Additional Details | |
| Occupation | Merchant |
| Industry | Grain |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
| Occupation | Merchant |
| Township / Ward | Lake City Town |
| Est. Birth Year | ~1849 |
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 1910 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Margaret Mahoney | Spouse | — | 63 | ~1847 |
| William Mahoney | Head | — | 61 | ~1849 |
| Mabel Mahoney | Daughter | — | 16 | ~1894 |
| John Mahoney | Son | — | 28 | ~1882 |
Census Appearances
1910
Calhoun, Iowa
Head, age 61
Calhoun, Iowa · implied b. ~1849 — 4 household members
| Surname | Mahoney |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 61 |
| Marital Status | Married |
| Birthplace | Wisconsin |
| Years Married | 37 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Merchant |
| Industry | Grain |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
1920
Calhoun, Iowa
Head, age 71
Calhoun, Iowa · implied b. ~1849 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mahony |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 71 |
| Marital Status | Married |
| Birthplace | Wisconsin |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | O |
| Home Free/Mortgaged | M |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
1930
Calhoun, Iowa
Other, age 81
Calhoun, Iowa · implied b. ~1849 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mahony |
| Given Name | William H. |
| Relationship to Head | Father |
| Sex | M |
| Color / Race | White |
| Age | 81 |
| Marital Status | Married |
| Birthplace | Wisconsin |
| Age at First Marriage | 24 |
| Father's Birthplace | Irish Free State |
| Mother's Birthplace | Irish Free State |
| Occupation | none |
| Can Read/Write | Yes |
| 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 William Mahoney across 3 US Census years (1910, 1920 and 1930) in Calhoun, Iowa, using XGBoost record linkage.
Show:
This person
Anchor record
William Mahoney
Head · 1910 · age 61 · b. ~1849 · Iowa
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1910 US Federal Census — Calhoun, Iowa
Open full size
1910 US Federal Census — Calhoun, Iowa
Page Contents
50 people indexed on this census page (ia:1910:13thcensus1910po394unit:0990)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | William H Ripley | 41 | Head | Merchant | Iowa |
| 2 | Bertha S Ripley | 8 | Daughter | — | Iowa |
| 3 | Grace B Ripley | 1 | Daughter | — | Iowa |
| 4 | Mary List | 74 | Mother-in-law | — | Germany |
| 5 | Abraham Pierce | 65 | Head | Retired | England |
| 6 | Cornelia Pierce | 63 | Wife | — | Canada |
| 7 | Sherman S Pierson | 43 | Head | Driver | Iowa |
| 8 | Anna L Pierson | 45 | Wife | — | West Virginia |
| 9 | Ernest E Pierson | 18 | Son | Farmer | Iowa |
| 10 | Claude E Pierson | 17 | Son | — | Iowa |
| 11 | Russell S Pierson | 13 | Son | — | Iowa |
| 12 | Eva M Pierson | 10 | Daughter | — | Iowa |
| 13 | Julia A Pierson | 6 | Daughter | — | Iowa |
| 14 | Ira M Pierson | 4 | Son | — | Iowa |
| 15 | James R Chapman | 52 | Head | Retired | New York |
| 16 | Mamie L Chapman | 48 | Wife | — | Pennsylvania |
| 17 | Nellie G Chapman | 23 | Daughter | Teacher | Iowa |
| 18 | Eva L Chapman | 21 | Daughter | Teacher | Iowa |
| 19 | Frank J Chapman | 16 | Son | — | Iowa |
| 20 | William Lowder | 51 | Head | Farmer | Iowa |
| 21 | Mary Lowder | 36 | Wife | — | Canada |
| 22 | Eva V Lowder | 10 | Daughter | — | Iowa |
| 23 | Ruth E Lowder | 7 | Daughter | — | Iowa |
| 24 | Robert L Lowder | 3 | Son | — | Iowa |
| 25 | Lizzie Little | 52 | Boarder | — | Illinois |
| 26 | William Mahoney THIS PERSON | 61 | Head | Merchant | Wisconsin |
| 27 | Margaret Mahoney | 63 | Wife | — | New York |
| 28 | John M Mahoney | 28 | Son | Agent | Iowa |
| 29 | Mabel L Mahoney | 16 | Daughter | — | Iowa |
| 30 | Henry H Carney | 51 | Head | Butcher | Iowa |
| 31 | Rebecca Carney | 54 | Wife | — | Indiana |
| 32 | Ernest J Carney | 22 | Son | Butcher | Iowa |
| 33 | Martha A Uhlman | 41 | Head | — | Pennsylvania |
| 34 | Jessie M Doty | 28 | Boarder | Dressmaker | Iowa |
| 35 | Albert Harold Lowe | 37 | Head | Dealer | Illinois |
| 36 | Lena Lowe | 43 | Wife | — | Iowa |
| 37 | Oscar J Lowe | 3 | Son | — | Iowa |
| 38 | Marcus S Chapman | 59 | Head | Retired | Ohio |
| 39 | Margaret Chapman | 50 | Wife | — | Missouri |
| 40 | Morris J Muehler | 75 | Head | — | Germany |
| 41 | Edith A Lewis | 75 | Head | — | Pennsylvania |
| 42 | Abel B Munroe | 77 | Head | Retired | New York |
| 43 | Lizzie Munroe | 77 | Wife | — | New York |
| 44 | Leonard C Mosby | 30 | Head | Barber | Iowa |
| 45 | Annie Mosby | 23 | Wife | — | Illinois |
| 46 | Fred M David | 33 | Head | Engineer | Iowa |
| 47 | Josephine David | 33 | Wife | — | Iowa |
| 48 | Vellma David | 3 | Daughter | — | Iowa |
| 49 | Maurice S David | 1 | Son | — | Iowa |
| 50 | John W Lumpkin | 76 | Head | Retired | Virginia |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1910 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)