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Mary Cahill — 1930 US Census Record

Linked across censuses

1930 United States Federal Census · Monmouth, New Jersey

Our Model Tree links this Mary Cahill across the 1920 and 1930 US Censuses in Monmouth, New Jersey (XGBoost, ~Confirmed) — first a spouse (b.~1888), then head of a 7-person household.

Age 42 b. ~1888 Female Spouse Born: New Jersey Married

1930 Census Record Details

Census Year1930
LocationMonmouth, New Jersey
SurnameCahill
Given NameMary E.
Relationship to HeadWife
SexF
Color / RaceWhite
Age42
Marital StatusMarried
BirthplaceNew Jersey
Age at First Marriage24
Father's BirthplaceNew Jersey
Mother's BirthplaceNew Jersey
Additional Details
Can Read/WriteYes
Birth StateNew Jersey
Birth CountryUnited States
Birthplace (normalized)new jersey
Township / WardFreehold Borough
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.

7 people recorded at the same address in the 1930 census.

Name Relation to head Relative to Mary Age Birth yr
Matthew Cahill Head — 70 ~1860
Mary Cahill Daughter — 4 ~1926
Frederick Cahill Son — 2 ~1928
Rita Cahill Daughter — 8 ~1922
Mary Cahill Spouse — 42 ~1888
Clara Cahill Daughter — 13 ~1917
Helen Cahill Daughter — 23 ~1907

Census Appearances

1920
Monmouth, New …
Spouse, age 32
Monmouth, New Jersey · implied b. ~1888 — 4 household members
●  Primary link · ~Confirmed · 2 sources
XGBoost Household
Surname Cahill
Given Name Mary C.
Relationship to Head Wife
Sex F
Color / Race White
Age 32
Marital Status Married
Birthplace New Jersey
Father's Birthplace New Jersey
Mother's Birthplace New Jersey
Can Read Yes
Can Write Yes
Speaks English Yes
Birth State New Jersey
Birth Country United States
Birthplace (normalized) new jersey
1930
Monmouth, New …
Spouse, age 42
Monmouth, New Jersey · implied b. ~1888 — 7 household members
Surname Cahill
Given Name Mary E.
Relationship to Head Wife
Sex F
Color / Race White
Age 42
Marital Status Married
Birthplace New Jersey
Age at First Marriage 24
Father's Birthplace New Jersey
Mother's Birthplace New Jersey
Can Read/Write Yes
Birth State New Jersey
Birth Country United States
Birthplace (normalized) new jersey

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.
Linked across censuses
Our Model Tree links Mary Cahill across 2 US Census years (1920 and 1930) in Monmouth, New Jersey, using XGBoost record linkage.
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This person
Anchor record
Mary Cahill
Spouse · 1930 · age 42 · b. ~1888 · New Jersey
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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 — Monmouth, New Jersey Open full size

Page Contents

50 people indexed on this census page (ia:1930:newjerseycensus00reel1370:0802)

Line Name Age Relation Occupation Birthplace
1 George Atkinson 72 Father Harness Maker New Jersey
2 Milton Swinley 52 Head Tailor Pennsylvania
3 Helen Swinley 20 Daughter — New Jersey
4 Melchior Swinley 16 Son — New Jersey
5 Ralph E. Sr. Bower 37 Head Salesman Pennsylvania
6 Cecelia C. Bower 35 Wife — New York
7 Ralph E. Jr. Bower 8 Son — New York
8 Mary C. Bower 3 Daughter — New York
9 Morris Mundel 78 Father-in-law — Poland
10 Mary E. Vanderveer 61 Head — New Jersey
11 Irving Anderson 37 Head Salesman Vermont
12 Ruth Anderson 21 Daughter Teacher Vermont
13 Irene Williams 37 Boarder Salesman New York
14 Grant Sr. Matthews 56 Head Carpenter New Jersey
15 Sarah Matthews 37 Wife — New Jersey
16 Doris Matthews 13 Daughter — New Jersey
17 Grant Jr. Matthews 10 Son — New Jersey
18 Edgar Farrington 47 Head Weaver England
19 Elizabeth Farrington 44 Wife — Scotland
20 Nellie Farrington 18 Daughter — Canada English
21 William M. Moon 58 Head Painter New Jersey
22 Mary J. Moon 44 Wife — New York
23 John Moon 38 Son Stenographer New Jersey
24 Millard Moon 18 Son — New Jersey
25 William Wood 34 Head Weaver New York
26 Ida Wood 32 Wife — New York
27 William B. Wood 8 Son — New York
28 Robert L. Wood 6 Son — New Jersey
29 Donald J. Wood 1 Son — New Jersey
30 Harry L. Cook 36 Boarder Salesman New Jersey
31 Matthew Cahill 70 Head Carpenter New Jersey
32 Mary E. Cahill THIS PERSON 42 Wife — New Jersey
33 Helen Cahill 23 Daughter — New Jersey
34 Clara Cahill 13 Daughter — New Jersey
35 Rita Cahill 8 Daughter — New Jersey
36 Mary Cahill 4 Daughter — New Jersey
37 Frederick M. Cahill 2 Son — New Jersey
38 Arthur Flynn 29 Head Inspector New York
39 Ada Flynn 30 Wife — New Jersey
40 Edward Flynn 1 Son — New Jersey
41 Grace Bethel 27 Boarder Stenographer New Jersey
42 Cornelius Hibbits 52 Head Carpenter New Jersey
43 Carry Hibbits 46 Wife — New Jersey
44 Ralph Hibbits 26 Son Mechanic New Jersey
45 Estelle Hibbits 23 Wife — New Jersey
46 Arthur Sr. Lovelace 45 Head Weaver England
47 Florence Lovelace 45 Wife — England
48 Florence Lovelace 17 Daughter Stenographer New York
49 Arthur Jr. Lovelace 16 Son Beamer New York
50 Joseph Lovelace 72 Father Retired England

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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)

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