John Chase — 1940 US Census Record

Linked across censuses

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

Our Model Tree links this John Chase across the 1920, 1930 and 1940 US Censuses in Monroe-County, New York (XGBoost, ~Confirmed) — first a head (b.~1870), then head of a 3-person household.

Age 70 b. ~1870 Male Head Born: New York Married

1940 Census Record Details

Census Year	1940
Location	Monroe-County, New York
Surname	Chase
Given Name	John P.
Relationship to Head	Head
Sex	M
Color / Race	White
Age	70
Marital Status	Married
Birthplace	New York
1935 Residence (City)	Rochester
1935 Residence (County)	Monroe
Additional Details
Occupation	Certificate Physician
Industry	At home
Class of Worker	OA
Hours Worked	45
Income (1939)	1800
Highest Grade	C 4
1935 Residence	Same place
Birth State	New York
Birth Country	United States
Birthplace (normalized)	new york
Occupation	Certificate Physician
Township / Ward	Rochester
Est. Birth Year	~1870

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
Florence Chase	Spouse	—	61	~1879
Virginia Chase	Daughter	—	33	~1907
John Chase	Head	—	70	~1870

Census Appearances

1920

Monroe, New …

Head, age 50

Monroe, New York · implied b. ~1870 — 4 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Chase
Given Name	John P
Relationship to Head	Head
Sex	M
Color / Race	White
Age	50
Marital Status	Married
Birthplace	New York
Father's Birthplace	New York
Mother's Birthplace	New York
Occupation	Physician
Industry	Office
Class of Worker	OA
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Home Owned/Rented	O
Home Free/Mortgaged	M
Birth State	New York
Birth Country	United States
Birthplace (normalized)	new york

1930

Monroe, New …

Head, age 60

Monroe, New York · implied b. ~1870 — 4 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Chase
Given Name	John P.
Relationship to Head	Head
Sex	M
Color / Race	White
Age	60
Marital Status	Married
Birthplace	New York
Age at First Marriage	33
Father's Birthplace	New York
Mother's Birthplace	New York
Occupation	Osteopathic Physician
Industry	Own Office
Class of Worker	OA
Can Read/Write	Yes
Home Owned/Rented	O
Birth State	New York
Birth Country	United States
Birthplace (normalized)	new york

1940

Monroe-County, New …

Head, age 70

Monroe-County, New York · implied b. ~1870 — 3 household members

Surname	Chase
Given Name	John P.
Relationship to Head	Head
Sex	M
Color / Race	White
Age	70
Marital Status	Married
Birthplace	New York
1935 Residence (City)	Rochester
1935 Residence (County)	Monroe
Occupation	Certificate Physician
Industry	At home
Class of Worker	OA
Hours Worked	45
Income (1939)	1800
Highest Grade	C 4
1935 Residence	Same place
Birth State	New York
Birth Country	United States
Birthplace (normalized)	new york

Model Tree

Linked across censuses

Our Model Tree links John Chase across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.

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This person

Anchor record

John Chase

Head · 1940 · age 70 · b. ~1870 · New York

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Confirmed / household (~0.90+) Probable / derived (~0.65–0.89) Candidate (<0.65, unverified)

Original Census Page

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

Page Contents

39 people indexed on this census page (nara:1940:m-t0627-02850-00974)

Line	Name	Age	Relation	Occupation	Birthplace
41	Blair Johnson	34	Head	—	New York
42	Bessas Johnson	1	Daughter	—	New York
43	Newton Conklin	35	Head	Roller Operator	New York
44	Emily Conklin	36	Wife	—	New York
45	Gail Conklin	4	Daughter	—	New York
46	William Conklin	0	Son	—	New York
47	John P. Chase THIS PERSON	70	Head	Certificate Physician	New York
48	Florence Chase	61	Wife	—	New York
49	Virginia Chase	33	Daughter	—	New York
50	Jean Dryden	32	Head	Nurse	New York
51	Marlene Loos	64	Head	—	New York
52	Elizabeth Loos	62	Sister	—	New York
53	Harry Chase	70	Head	Manager	New York
54	Harry Jr. Chase	31	Son	Foreman	New York
55	Helen Chase	33	Daughter-in-law	—	New York
56	Harrison Dudas	34	Head	Traffic Manager	New York
57	Irma Dudas	33	Wife	—	New York
58	Richard Dudas	10	Son	—	New York
59	Adah Dudas	65	Mother	—	New York
60	William Turnbull	47	Head	Housekeeper	Canada
61	Ruth Turnbull	47	Wife	Secretary	Massachusetts
62	Mary G. Turnbull	10	Daughter	—	New York
63	Isabelle Turnbull	8	Daughter	—	New York
64	Ellen Jones	74	Mother-in-law	—	New Hampshire
65	Gustav Kuerzi	37	Head	Research Laboratory	Austria
66	Rose Kuerzi	35	Wife	—	Austria
67	Anton Kuerzi	4	Son	—	Austria
68	Roy Stoddard	60	Head	Stationary Engineer	New York
69	Ina Stoddard	52	Wife	—	New York
70	Hilda Brostedt	45	Head	—	Connecticut
71	Irma Brostedt	20	Daughter	Secretary	Massachusetts
72	Ronald Brostedt	16	Son	—	New York
73	Virginia Brostedt	15	Daughter	—	New York
74	Ernest Brostedt	10	Son	—	New York
75	Amelia Doughty	26	Lodger	Assistant Teacher	New York
76	William Bachman	65	Head	Official	New York
77	Clara Bachman	60	Wife	—	New York
78	Isabella Schram	64	Head	—	New York
79	Robert Mclaughlin	55	Head	Orderly	Scotland

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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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