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William Mcgrath — 1930 US Census Record

Model Tree available

1930 United States Federal Census · New York, New York

Our Model Tree links this William Mcgrath across the 1910, 1920 and 1930 US Censuses in New York, New York (XGBoost, ~Confirmed), with identified parents James & Robert — first a son (b.~1899), then head of a 6-person household.

Age 31 b. ~1899 Male Son Born: New York Single

1930 Census Record Details

Census Year1930
LocationNew York, New York
SurnameMcGrath
Given NameWilliam
Relationship to HeadSon
SexM
Color / RaceWhite
Age31
Marital StatusSingle
BirthplaceNew York
Father's BirthplaceNew York
Mother's BirthplaceNew York
Additional Details
OccupationElectrician
IndustryRailroad
Class of WorkerW
Can Read/WriteYes
VeteranNo
Birth StateNew York
Birth CountryUnited States
Birthplace (normalized)new york
OccupationElectrician
Township / WardNew York City
Est. Birth Year~1899

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.

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

Name Relation to head Relative to William Age Birth yr
Nellie Mcgrath Other — 54 ~1876
William Mcgrath Son — 31 ~1899
Florence Mcgrath Daughter — 14 ~1916
James Mcgrath Son — 22 ~1908
Lillian Mcgrath Daughter — 20 ~1910
James Mcgrath Head — 60 ~1870

Census Appearances

1910
New York, …
Other, age 10
New York, New York · implied b. ~1900 — 9 household members
●  Primary link · ~Confirmed · 2 sources
XGBoost Household
Surname McGrath
Given Name William
Relationship to Head Nephew
Sex M
Color / Race White
Age 10
Marital Status Single
Birthplace New York
Father's Birthplace New York
Mother's Birthplace New York
Occupation Envelopes
Industry Printing
Birth State New York
Birth Country United States
Birthplace (normalized) new york
1920
New York, …
Son, age 20
New York, New York · implied b. ~1900 — 6 household members
●  Primary link · ~Confirmed · 2 sources
XGBoost Household
Surname McGrath
Given Name William
Relationship to Head Son
Sex M
Color / Race White
Age 20
Marital Status Single
Birthplace New York
Father's Birthplace New York
Mother's Birthplace New York
Can Read Yes
Can Write Yes
Speaks English Yes
Birth State New York
Birth Country United States
Birthplace (normalized) new york
1930
New York, …
Son, age 31
New York, New York · implied b. ~1899 — 6 household members
Surname McGrath
Given Name William
Relationship to Head Son
Sex M
Color / Race White
Age 31
Marital Status Single
Birthplace New York
Father's Birthplace New York
Mother's Birthplace New York
Occupation Electrician
Industry Railroad
Class of Worker W
Can Read/Write Yes
Veteran No
Birth State New York
Birth Country United States
Birthplace (normalized) new york

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.
Model Tree available
Our Model Tree links William Mcgrath across 3 US Census years (1910, 1920 and 1930) in New York, New York, using XGBoost record linkage. Identified parents: father James Mcgrath (~0.92 confidence) and father Robert Mcgrath (~0.92 confidence) and mother Rose Mcgrath (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1 Parents confidence ≈ 0.92
Father
James Mcgrath
b. ~1870
Source father
● Household · direct · ~0.92
Father
Robert Mcgrath
b. ~1864
Source father
● Household · direct · ~0.92
Mother
Rose Mcgrath
b. ~1870
Source mother
● Household · direct · ~0.92
This person
Anchor record
William Mcgrath
Son · 1930 · age 31 · b. ~1899 · New York
★ You are viewing this record
Sibling
James Mcgrath
Sibling · 1930 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lillian Mcgrath
Sibling · 1930 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Florence Mcgrath
Sibling · 1930 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+) Probable / derived (~0.65–0.89) Candidate (<0.65, unverified)

Original Census Page

1930 US Federal Census — New York, New York Open full size

Page Contents

50 people indexed on this census page (ia:1930:newyorkcensus00reel1571:0066)

Line Name Age Relation Occupation Birthplace
1 Ellen Reilly 51 Wife-H — Irish Free State
2 John Reilly 19 Son Clerk Irish Free State
3 Mary Reilly 17 Daughter Typist Irish Free State
4 Edward Kelly 48 Head House Porter Irish Free State
5 Elizabeth Kelly 47 Wife-H — Irish Free State
6 John Kelly 16 Son — New York
7 James Kelly 14 Son — New York
8 Patrick Mcgrory 52 Head Watchman North Ireland
9 Delia Mcgrory 48 Wife-H — Irish Free State
10 Francis J. Farley 29 Boarder Repair Man New York
11 Helen Caragher 21 Boarder Chambermaid North Ireland
12 Emil Miller 61 Head Carpenter Posen
13 Anna Miller 60 Wife-H — Vienna
14 Bruce Raymond 28 Head Entertainer New York
15 George Snyder 43 Head Electrician New York
16 Isabelle Snyder 37 Wife-H — New York
17 Thomas Snyder 17 Son Messenger New York
18 John Reiter 41 Head Butcher Posen
19 Teresa Reiter 39 Wife-H — Posen
20 John Reiter 10 Son — Posen
21 Rudolph Reiter 7 Son — Posen
22 Frank Kramer 44 Head Cook Hanover
23 May Kramer 45 Wife-H — Hanover
24 William Kramer 18 Son Clerk Hanover
25 James Hickey 37 Head Blacksmith Irish Free State
26 Margaret Hickey 32 Wife-H — Irish Free State
27 Michael Cummings 31 Head Guard Irish Free State
28 Catherine Cummings 33 Wife-H — Irish Free State
29 Lena Cummings 1 Daughter — New York
30 Eugene Tierney 31 Head Conductor Irish Free State
31 Nora Tierney 27 Wife-H — Irish Free State
32 Teresa Tierney 5 Daughter — New York
33 Elizabeth Tierney 4 Daughter — New York
34 Mary Tierney 1 Daughter — New York
35 James Mcgrath 60 Head Laborer New York
36 Nellie Mcgrath 54 Wife-H — New York
37 William Mcgrath THIS PERSON 31 Son Electrician New York
38 James Mcgrath 22 Son Laundry Laborer New York
39 Lillian Mcgrath 20 Daughter Stenographer New York
40 Florence Mcgrath 14 Daughter — New York
41 Mary Coffey 48 Head — Irish Free State
42 Mary Coffey 17 Daughter — New York
43 Margaret Coffey 11 Daughter — New York
44 Dorothy Coffey 9 Daughter — New York
45 James Coffey 7 Son — New York
46 Johanna Paine 53 Head Manager New York
47 Thomas Paine 19 Son Bookkeeper New York
48 Charles Paine 18 Son Bookkeeper New York
49 Antoinette Paine 16 Daughter — New York
50 Mary Paine 14 Daughter — New York

Related Census Records

Pedigree Summary

William + 3 siblings
Gen 1 · 3 parents ~0.92
Max depth 4 (1900–1950 window)

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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