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John Donovan — 1940 US Census Record

Model Tree available

1940 United States Federal Census · Kings-County, New York

Our Model Tree links this John Donovan across the 1920, 1930 and 1940 US Censuses in Kings-County, New York (XGBoost, ~Confirmed), with identified parents Hannah & Hannah — first a son (b.~1909), then head of a 3-person household.

Age 31 b. ~1909 Male Son Born: New York Single

1940 Census Record Details

Census Year1940
LocationKings-County, New York
SurnameDonovan
Given NameJohn
Relationship to Headson
SexM
Color / RaceWhite
Age31
Marital StatusSingle
BirthplaceNew York
1935 Residence (City)New York City
1935 Residence (County)Kings
Additional Details
Occupationpoliceman
IndustryN.Y. City Police
Class of WorkerGW
Hours Worked44
Income (1939)2500
Highest GradeNo 8
1935 ResidenceSame place
Birth StateNew York
Birth CountryUnited States
Birthplace (normalized)new york
OccupationPoliceman
Township / WardNew York City
Est. Birth Year~1909

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.

3 people recorded at the same address in the 1940 census.

Name Relation to head Relative to John Age Birth yr
Hannah Donovan Head — 65 ~1875
Timothy Donovan Son — 40 ~1900
John Donovan Son — 31 ~1909

Census Appearances

1920
Kings, New …
Son, age 10
Kings, New York · implied b. ~1910 — 13 household members
●  Primary link · ~Confirmed · 2 sources
XGBoost Household
Surname Donovan
Given Name John
Relationship to Head Son
Sex M
Color / Race White
Age 10
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
Kings, New …
Son, age 21
Kings, New York · implied b. ~1909 — 9 household members
●  Primary link · ~Confirmed · 2 sources
XGBoost Household
Surname Donovan
Given Name John
Relationship to Head Son
Sex M
Color / Race White
Age 21
Marital Status Single
Birthplace New York
Father's Birthplace New York
Mother's Birthplace New York
Can Read/Write Yes
Veteran No
Birth State New York
Birth Country United States
Birthplace (normalized) new york
1940
Kings-County, New …
Son, age 31
Kings-County, New York · implied b. ~1909 — 3 household members
Surname Donovan
Given Name John
Relationship to Head son
Sex M
Color / Race White
Age 31
Marital Status Single
Birthplace New York
1935 Residence (City) New York City
1935 Residence (County) Kings
Occupation policeman
Industry N.Y. City Police
Class of Worker GW
Hours Worked 44
Income (1939) 2500
Highest Grade No 8
1935 Residence Same place
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 John Donovan across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Hannah Donovan (~0.83 confidence) and mother Hannah Donovan (~0.92 confidence) and father John Donovan (~0.92 confidence) and father William Donovan (~0.92 confidence) and mother Mary Donovan (~0.92 confidence) and mother Mary Donovan (~0.92 confidence). The pedigree spans 2 generations with 6 identified ancestors.
Show:
Gen 1 Parents confidence ≈ 0.9
Mother
Hannah Donovan
b. ~1844
Source father>mother
● Household · direct · ~0.83
Mother
Hannah Donovan
b. ~1875
Source mother
● Household · direct · ~0.92
Father
John Donovan
b. ~1879
Source father
● Household · direct · ~0.92
Father
William Donovan
b. ~1883
Source father
● Household · direct · ~0.92
Mother
Mary Donovan
b. ~1885
Source mother
● Household · direct · ~0.92
Mother
Mary Donovan
b. ~1886
Source mother
● Household · direct · ~0.92
This person
Anchor record
John Donovan
Son · 1940 · age 31 · b. ~1909 · New York
★ You are viewing this record
Sibling
Timothy Donovan
Sibling · 1940 · age 40
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

1940 US Federal Census — Kings-County, New York Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-02575-00010)

Line Name Age Relation Occupation Birthplace
1 Peck Mary R. Peck 55 wife Teacher New York
2 John J. Sheehy 42 head Patrolman New York
3 Catherine Sheehy 42 wife — New York
4 Gudrun Kullgren 39 head Seamstress Sweden
5 Einar Kullgren 11 son — New York
6 William Jenkins 35 head Detective New York
7 Carl Rofuss 30 head Salesman Germany
8 Lenore Rofuss 27 wife Assistant New York
9 Joseph Parisi 29 head Service Man New York
10 Josephine Parisi 33 sister Saleslady New York
11 Camille Parisi 24 sister Designer New York
12 Edward Euler 32 head Mechanic New Jersey
13 Stella Euler 34 wife Salesgirl Canada English
14 Irwin Pratt 35 head Jeweler Russia
15 Mildred Pratt 24 wife — New York
16 Howard E. Pratt 9 son — New York
17 Albert H. Lufburrow 49 head Fire Lieut. New Jersey
18 Dora F. Lufburrow 48 wife — New Jersey
19 Francis J. Reardon 72 head — Massachusetts
20 Gladys Reardon 38 daughter Teacher New Jersey
21 Leo Sullivan 51 head Clerk New York
22 Mary Sullivan 49 wife Ticket Agent Ireland
23 August Ollry 76 head — Germany
24 Helena Ollry 56 daughter — New Jersey
25 William D. Foster 50 head Chief Clerk Massachusetts
26 Caroline Foster 50 wife — New York
27 Mary T. Murray 57 head Engineer New York
28 Sydney H. Dean 40 head Clerk England
29 Veronica Dean 34 wife — New York
30 Frank B. Cooke 31 head Policeman New York
31 Margaret Cooke 27 wife — New York
32 Margaret Mary Cooke 2 daughter — New York
33 James A. Thornton 49 head Clerical Pennsylvania
34 Esther E. Thornton 45 wife — Massachusetts
35 Royal Prentzel 33 head Salesman New York
36 Mary Prentzel 33 wife — New York
37 Hannah Donovan 65 head — Ireland
38 Timothy Donovan 40 son Biller New York
39 John Donovan THIS PERSON 31 son Policeman New York
40 George Geraghty 43 head Driver New York

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Pedigree Summary

John + 1 sibling
Gen 1 · 5 parents ~0.92
Gen 2 · 1 grandparents ~0.83
Max depth 4 (1900–1950 window)

About This Record & Model Tree

This record was independently indexed by YourRoots from the 1940 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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