JC
John Cahill — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Maricopa, Arizona
Our Model Tree links this John Cahill across the 1920 and 1930 US Censuses in Maricopa, Arizona (XGBoost, ~Confirmed) — first a head (b.~1893), then head of a 9-person household.
Age 37
b. ~1893
Male
Head
Born: Mexico
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Maricopa, Arizona |
| Surname | Cahill |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | Mexican |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Mexico |
| Naturalization Status | Naturalized |
| Year of Immigration | 1902 |
| Age at First Marriage | 19 |
| Father's Birthplace | Michigan |
| Mother's Birthplace | Mexico |
| Additional Details | |
| Occupation | Truck driver |
| Industry | Cement products |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | Spanish |
| Home Owned/Rented | O |
| Home Value / Rent | 1500 |
| Radio Set | No |
| Birth Country | Mexico |
| Birthplace (normalized) | mexico |
| Occupation | Truck Driver |
| Township / Ward | Phoenix City |
| Est. Birth Year | ~1893 |
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.
9 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Mary Cahill | Daughter | — | 15 | ~1915 |
| James Cahill | Son | — | 5 | ~1925 |
| Alga Cahill | Daughter | — | 13 | ~1917 |
| John Cahill | Son | — | 11 | ~1919 |
| George Cahill | Son | — | 9 | ~1921 |
| Lola Cahill | Other | — | 44 | ~1886 |
| John Cahill | Head | — | 37 | ~1893 |
| Zelda Cahill | Daughter | — | 9 | ~1921 |
| Lenore Cahill | Daughter | — | 17 | ~1913 |
Census Appearances
1920
Maricopa, Arizona
Head, age 26
Maricopa, Arizona · implied b. ~1894 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cahill |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Married |
| Birthplace | Mexico |
| Year of Immigration | 1900 |
| Naturalization Status | Alien |
| Father's Birthplace | Mexico |
| Mother's Birthplace | Mexico |
| Occupation | laborer |
| Industry | working out |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Spanish |
| Home Owned/Rented | R |
| Birth Country | Mexico |
| Birthplace (normalized) | mexico |
1930
Maricopa, Arizona
Head, age 37
Maricopa, Arizona · implied b. ~1893 — 9 household members
| Surname | Cahill |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | Mexican |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Mexico |
| Naturalization Status | Naturalized |
| Year of Immigration | 1902 |
| Age at First Marriage | 19 |
| Father's Birthplace | Michigan |
| Mother's Birthplace | Mexico |
| Occupation | Truck driver |
| Industry | Cement products |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | Spanish |
| Home Owned/Rented | O |
| Home Value / Rent | 1500 |
| Radio Set | No |
| Birth Country | Mexico |
| Birthplace (normalized) | mexico |
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 Cahill across 2 US Census years (1920 and 1930) in Maricopa, Arizona, using XGBoost record linkage.
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This person
Anchor record
John Cahill
Head · 1930 · age 37 · b. ~1893 · Arizona
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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 — Maricopa, Arizona
Open full size
1930 US Federal Census — Maricopa, Arizona
Page Contents
50 people indexed on this census page (ia:1930:15thcensus58unit:0165)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Bertha Barragan | 28 | Wife-H | — | Mexico |
| 52 | Jose Barragan | 5 | Son | — | Arizona |
| 53 | Stella Barragan | 4 | Daughter | — | Arizona |
| 54 | Felipa Lizarraga | 53 | Head-H | Caretaker | Mexico |
| 55 | Ramon Lizarraga | 29 | Son | Caretaker | Arizona |
| 56 | Dan Lizarraga | 22 | Son | Cement Worker | Arizona |
| 57 | Carlos Lizarraga | 15 | Son | — | Arizona |
| 58 | Francis Lizarraga | 17 | Daughter-in-law | — | Arizona |
| 59 | Ramon Lizarraga | 0 | Grandson | — | Arizona |
| 60 | Jesus Valencia | 87 | Father | — | Mexico |
| 61 | Esther Parra | 15 | Granddaughter | Servant | Arizona |
| 62 | Alfred Jones | 38 | Head | Paperhangers Helper | Ohio |
| 63 | Helen Marie Jones | 37 | Wife-H | — | Ohio |
| 64 | Leonard Raymond Jones | 10 | Son | — | Ohio |
| 65 | Marjorie Ann Jones | 8 | Daughter | — | Ohio |
| 66 | Duane Allen Jones | 3 | Son | — | Ohio |
| 67 | John Tallies | 35 | Boarder | Paperhanger Painter | France |
| 68 | John Tallies | 5 | Boarder | — | California |
| 69 | Paul Tallies | 3 | Boarder | — | California |
| 70 | John Cahill THIS PERSON | 37 | Head | Truck Driver | Mexico |
| 71 | Lola Cahill | 44 | Wife-H | — | Mexico |
| 72 | Lenore Cahill | 17 | Daughter | — | Arizona |
| 73 | Mary Alice Cahill | 15 | Daughter | — | Arizona |
| 74 | Alga Cahill | 13 | Daughter | — | Arizona |
| 75 | John Cahill | 11 | Son | — | Arizona |
| 76 | George Cahill | 9 | Son | — | Arizona |
| 77 | Zelda Cahill | 9 | Daughter | — | Arizona |
| 78 | James Cahill | 5 | Son | — | Arizona |
| 79 | Edward Enriquez | 43 | Head | Order Clerk | Arizona |
| 80 | Dolores Enriquez | 53 | Head-H | — | Mexico |
| 81 | Laura Pacheco | 9 | Ward | — | Arizona |
| 82 | Marcus Pacheco | 6 | Ward | — | Arizona |
| 83 | Crispin Laguna | 66 | Head | — | Mexico |
| 84 | Jesus Laguna | 38 | Wife-H | Laundress | Mexico |
| 85 | Alex Gonzales | 20 | Son-in-law | Carpenters Helper | Arizona |
| 86 | Luzginia Gonzales | 18 | Daughter | — | Kansas |
| 87 | Lilly Gonzales | 1 | Daughter | — | Arizona |
| 88 | Frank Gonzales | 0 | Son | — | Arizona |
| 89 | Julia Laguna | 10 | Daughter | — | Arizona |
| 90 | Enid Laguna | 9 | Son | — | Arizona |
| 91 | Albert Laguna | 7 | Son | — | Arizona |
| 92 | Salvatore Laguna | 5 | Son | — | Arizona |
| 93 | Rosie Laguna | 2 | Daughter | — | Arizona |
| 94 | Luis Lugo | 47 | Head | Grocery Man | Mexico |
| 95 | Luz Lugo | 39 | Wife-H | — | Mexico |
| 96 | Alice Lugo | 23 | Daughter | Saleslady | Mexico |
| 97 | Mary Lugo | 22 | Daughter | Saleslady | Mexico |
| 98 | Manuel Aguirre | 31 | Boarder | Butcher | Arizona |
| 99 | Aguirre | 9 | Boarder | — | Arizona |
| 100 | Lydia Aguirre | 7 | Boarder | — | Arizona |
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)