MC
Mary Cahill — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Daviess, Indiana
Our Model Tree links this Mary Cahill across the 1920, 1930 and 1940 US Censuses in Daviess, Indiana (XGBoost, ~Confirmed) — first a spouse (b.~1888), then head of a 5-person household.
Age 42
b. ~1888
Female
Spouse
Born: Indiana
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Daviess, Indiana |
| Surname | Cahill |
| Given Name | Mary C. |
| Relationship to Head | wife |
| Sex | F |
| Color / Race | White |
| Age | 42 |
| Marital Status | Married |
| Birthplace | Indiana |
| Age at First Marriage | 21 |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Additional Details | |
| Occupation | servant |
| Industry | private |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
| Occupation | Servant |
| Township / Ward | Washington City |
| Est. Birth Year | ~1888 |
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 Mary | Age | Birth yr |
|---|---|---|---|---|
| George Cahill | Head | — | 44 | ~1886 |
| Joseph Cahill | Son | — | 15 | ~1915 |
| Marie Cahill | Daughter | — | 12 | ~1918 |
| Ralph Cahill | Son | — | 20 | ~1910 |
| Mary Cahill | Spouse | — | 42 | ~1888 |
Census Appearances
1920
Daviess, Indiana
Spouse, age 32
Daviess, Indiana · implied b. ~1888 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cahill |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 32 |
| Marital Status | Married |
| Birthplace | Indiana |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1930
Daviess, Indiana
Spouse, age 42
Daviess, Indiana · implied b. ~1888 — 5 household members
| Surname | Cahill |
| Given Name | Mary C. |
| Relationship to Head | wife |
| Sex | F |
| Color / Race | White |
| Age | 42 |
| Marital Status | Married |
| Birthplace | Indiana |
| Age at First Marriage | 21 |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Occupation | servant |
| Industry | private |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1940
Daviess-County, Indiana
Spouse, age 53
Daviess-County, Indiana · implied b. ~1887 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cahill |
| Given Name | Mable E |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 53 |
| Marital Status | Married |
| Birthplace | Indiana |
| 1935 Residence (City) | Washington City |
| 1935 Residence (County) | Daviess |
| Income (1939) | 0 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same house |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
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 Mary Cahill across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Cahill
Spouse · 1930 · age 42 · b. ~1888 · Indiana
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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 — Daviess, Indiana
Open full size
1930 US Federal Census — Daviess, Indiana
Page Contents
50 people indexed on this census page (ia:1930:indianacensus00reel582:0348)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Rosemary Glass | 8 | daughter | None | Indiana |
| 2 | Jennie Glass | 50 | stepdaughter | None | Indiana |
| 3 | Glenn B. Hedges | 50 | head | Seamstress | Indiana |
| 4 | Ralph Hedges | 15 | son | None | Indiana |
| 5 | George Cahill | 44 | head | Laborer | Indiana |
| 6 | Mary C. Cahill THIS PERSON | 42 | wife | Servant | Indiana |
| 7 | Ralph Cahill | 20 | son | Machinist | Indiana |
| 8 | Joseph Cahill | 15 | son | None | Indiana |
| 9 | Marie Cahill | 12 | daughter | None | Indiana |
| 10 | John Garaghan | 52 | head | None | Indiana |
| 11 | Mollie Garaghan | 60 | sister | None | Indiana |
| 12 | Joe Garaghan | 58 | brother | None | Indiana |
| 13 | Matilda Garaghan | 56 | sister | None | Indiana |
| 14 | Emma Leahigh | 50 | sister | Milliner | Indiana |
| 15 | Jack Leahigh | 22 | nephew | Secretary | Indiana |
| 16 | J. A. Mccafferty | 39 | head | Car Mech. | Indiana |
| 17 | Fay Mccafferty | 17 | daughter | None | Indiana |
| 18 | Joe Mccafferty | 14 | son | None | Indiana |
| 19 | Virginia R. Mccafferty | 10 | daughter | None | Indiana |
| 20 | Jack C. Alberti | 36 | head | Dry Cleaning | Indiana |
| 21 | Louise Alberti | 36 | wife | Dry Cleaning | Indiana |
| 22 | Arthur Alberti | 10 | son | None | Indiana |
| 23 | Marion Hatfield | 26 | head | Salesman | Indiana |
| 24 | Margaret Hatfield | 22 | wife | None | Indiana |
| 25 | F. A. Mccormick | 31 | head | Teacher | Indiana |
| 26 | Myrtle Mccormick | 33 | wife | Teacher | Indiana |
| 27 | Lura H. Burris | 46 | head | Proprietor | Indiana |
| 28 | Goldie F. Burris | 41 | wife | Housekeeper | Indiana |
| 29 | Louise Payne | 17 | lodger | Waitress | Illinois |
| 30 | Katie Denham | 24 | lodger | Waitress | Indiana |
| 31 | Milton H. Wilson | 68 | lodger | Farmer & Contractor | Indiana |
| 32 | John W. Mccarter | 62 | lodger | Manager | South Ireland |
| 33 | Harold J. Thedrick | 19 | lodger | Printer | Indiana |
| 34 | John J. Cavanaugh | 72 | lodger | Merchant | Missouri |
| 35 | Lena S. Arnold | 34 | lodger | None | Indiana |
| 36 | Thomas J. Arnold | 45 | lodger | Manager | Indiana |
| 37 | Howard S. Chun | 37 | lodger | Car Foreman | Maryland |
| 38 | Lee Willis Vincent | 52 | lodger | None | Pennsylvania |
| 39 | Irene Doolin | 26 | lodger | Saleslady | Indiana |
| 40 | Faye Conner Brown | 39 | head | Teacher | Indiana |
| 41 | George Gilliatt | 62 | head | Farmer | Indiana |
| 42 | Nora Gilliatt | 60 | wife | None | Indiana |
| 43 | Earl Gilliatt | 40 | son | Laborer | Indiana |
| 44 | Thomas J. Daily | 31 | head | Merchant | Indiana |
| 45 | Bernadine Daily | 23 | wife | None | Indiana |
| 46 | William Taylor | 50 | head | Laborer | Kentucky |
| 47 | Lena Taylor | 36 | wife | None | Indiana |
| 48 | Cecil Dogard | 17 | stepson | Laborer | Indiana |
| 49 | Marie Dogard | 16 | daughter | None | Indiana |
| 50 | Pauline Copeland | 14 | daughter | None | Indiana |
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)