John Decker — 1930 US Census Record

Linked across censuses

1930 United States Federal Census · Monroe, New York

Our Model Tree links this John Decker across the 1930 and 1940 US Censuses in Monroe, New York (XGBoost, ~Confirmed) — first a head (b.~1895), then head of a 8-person household.

Age 35 b. ~1895 Male Head Born: New York Married

1930 Census Record Details

Census Year	1930
Location	Monroe, New York
Surname	Decker
Given Name	John T.
Relationship to Head	Head
Sex	M
Color / Race	White
Age	35
Marital Status	Married
Birthplace	New York
Age at First Marriage	19
Father's Birthplace	New York
Mother's Birthplace	New York
Additional Details
Occupation	Policeman
Industry	City Police Dept
Class of Worker	W
Can Read/Write	Yes
Home Owned/Rented	R
Home Value / Rent	$28
Birth State	New York
Birth Country	United States
Birthplace (normalized)	new york
Occupation	Policeman
Township / Ward	Rochester City
Est. Birth Year	~1895

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.

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

Name	Relation to head	Relative to John	Age	Birth yr
Alfred Kase	Other	—	43	~1887
Harold Decker	Son	—	3	~1927
John Decker	Head	—	35	~1895
Jean Decker	Daughter	—	11	~1919
Harriet Decker	Daughter	—	14	~1916
Clarence Decker	Son	—	15	~1915
Ada Decker	Spouse	—	38	~1892
Donald Decker	Son	—	6	~1924

Census Appearances

1930

Monroe, New …

Head, age 35

Monroe, New York · implied b. ~1895 — 8 household members

Surname	Decker
Given Name	John T.
Relationship to Head	Head
Sex	M
Color / Race	White
Age	35
Marital Status	Married
Birthplace	New York
Age at First Marriage	19
Father's Birthplace	New York
Mother's Birthplace	New York
Occupation	Policeman
Industry	City Police Dept
Class of Worker	W
Can Read/Write	Yes
Home Owned/Rented	R
Home Value / Rent	$28
Birth State	New York
Birth Country	United States
Birthplace (normalized)	new york

1940

Monroe-County, New …

Head, age 45

Monroe-County, New York · implied b. ~1895 — 4 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Dicker
Given Name	John T.
Relationship to Head	Head
Sex	M
Color / Race	White
Age	45
Marital Status	Married
Birthplace	New York
1935 Residence (City)	Rochester city
1935 Residence (County)	Monroe
Occupation	Policeman
Industry	Headquarters P.D.
Class of Worker	GW
Hours Worked	48
Income (1939)	2100
Highest Grade	No 8
1935 Residence	Same House
Birth State	New York
Birth Country	United States
Birthplace (normalized)	new york

Model Tree

Linked across censuses

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

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Anchor record

John Decker

Head · 1930 · age 35 · b. ~1895 · New York

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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 — Monroe, New York Open full size

Page Contents

50 people indexed on this census page (ia:1930:newyorkcensus00reel1452rs:0216)

Line	Name	Age	Relation	Occupation	Birthplace
51	George Frost	54	Head	Engineer	New York
52	Mary Frost	53	Wife	—	New York
53	Catherine Vormeng	46	Head	Boarder	New York
54	John Frost	44	Brother	—	New York
55	William Anderson	37	Boarder	Tinsmith	New York
56	Harry Eggleston	22	Boarder	Plumber	New York
57	Julia Leo	42	Head	Assembler	New York
58	William H. Snyder	52	Head	Asst. Master	New Jersey
59	Cecila Snyder	51	Wife	—	Germany (Bav.)
60	Joseph Snyder	28	Son	Laborer	New Jersey
61	Blifford Love	31	Boarder	Waiter	New York
62	Raymond Frenzel	28	Head	Carpenter	New York
63	Ruth Frenzel	23	Wife	—	New York
64	Walter Frenzel	1	Son	—	New York
65	Rose Hochrein	54	Head	Tailoress	Germany (Bavaria)
66	Alice Galler	63	Head	—	New York
67	Eugene Galler	37	Son	Stockman	New York
68	Marcella Galler	31	Daughter	Stenographer	New York
69	Leo Galler	25	Son	Salesman	New York
70	Albert Booker	36	Head	Salesman	New York
71	Mary Booker	34	Wife	Tailoress	New York
72	Edward A. Bohner	26	Head	Auto Mechanic	New York
73	Marion Bohner	19	Wife	—	New York
74	Edward Jr. Bohner	1	Son	—	New York
75	Margaret Rauschenberg	56	Head	—	New York
76	Helen Galarneau	34	Daughter	Hairdressing	New York
77	Sylvester Galarneau	39	Son-in-law	Film Maker	New York
78	Charles Mccabe	44	Head	Mail Clerk	New York
79	Loretta Mccabe	45	Wife	—	New York
80	Raymond Mccabe	20	Son	Assembler	New York
81	Mildred Mccabe	18	Daughter	Operator	New York
82	Catherine Paul	72	Head	—	New York
83	Louie Gall	62	Sister	Finisher	New York
84	Fred Paul	25	Nephew	Shipping	New York
85	Harold Paul	20	Nephew	Timekeeper	New York
86	Gerard Paul	9	Nephew	—	New York
87	John T. Decker THIS PERSON	35	Head	Policeman	New York
88	Ada Decker	38	Wife	—	New York
89	Clarence Decker	15	Son	—	New York
90	Harriet Decker	14	Daughter	—	New York
91	Jean Decker	11	Daughter	—	New York
92	Donald Decker	6	Son	—	New York
93	Harold Decker	3	Son	—	New York
94	Alfred Kase	43	Brother-in-law	Cutter	New York
95	Edward Uderitz	57	Head	Asst Chemist	New York
96	Eva Uderitz	46	Wife	—	New York
97	Harold Uderitz	21	Son	Foreman	New York
98	Mildred Uderitz	20	Daughter	Saleslady	New York
99	Robert Uderitz	17	Son	Salesman	New York
100	William Uderitz	15	Son	—	New York

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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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