Frank Griffin — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Scott-County, Iowa

Our Model Tree links this Frank Griffin across the 1920, 1930 and 1940 US Censuses in Scott-County, Iowa (XGBoost, ~Confirmed) — first a head (b.~1891), then head of a 5-person household.

Age 49 b. ~1891 Male Head Born: Ohio Married

1940 Census Record Details

Census Year	1940
Location	Scott-County, Iowa
Surname	Griffin
Given Name	Frank J.
Relationship to Head	Head
Sex	M
Color / Race	White
Age	49
Marital Status	Married
Birthplace	Ohio
1935 Residence (City)	Davenport City
1935 Residence (County)	Scott
Additional Details
Occupation	Fireman
Industry	City
Class of Worker	GW
Hours Worked	52
Income (1939)	1800
Highest Grade	No 9
1935 Residence	Same place
Birth State	Ohio
Birth Country	United States
Birthplace (normalized)	ohio
Occupation	Fireman
Township / Ward	Davenport City
Est. Birth Year	~1891

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.

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

Name	Relation to head	Relative to Frank	Age	Birth yr
Jane Griffin	Daughter	—	17	~1923
Dorthy Griffin	Spouse	—	45	~1895
Marie Griffin	Other	—	72	~1868
Edward Griffin	Son	—	24	~1916
Frank Griffin	Head	—	49	~1891

Census Appearances

1920

Scott, Iowa

Head, age 29

Scott, Iowa · implied b. ~1891

● Primary link · ~Confirmed · 1 source

XGBoost

Surname	Griffin
Given Name	Frank J
Relationship to Head	Head
Sex	M
Color / Race	White
Age	29
Marital Status	Married
Birthplace	Ohio
Father's Birthplace	Massachusetts
Mother's Birthplace	Ohio
Occupation	Meter Reader
Industry	Light Co
Class of Worker	W
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Birth State	Ohio
Birth Country	United States
Year of Naturalization	R
Birthplace (normalized)	ohio

1930

Scott, Iowa

Head, age 39

Scott, Iowa · implied b. ~1891 — 8 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Griffin
Given Name	Frank J.
Relationship to Head	Head
Sex	M
Color / Race	White
Age	39
Marital Status	Married
Birthplace	Ohio
Age at First Marriage	22
Father's Birthplace	Massachusetts
Mother's Birthplace	Ohio
Occupation	Fireman (Captain)
Industry	Fire Department
Class of Worker	W
Can Read/Write	Yes
Home Owned/Rented	R
Home Value / Rent	30
Radio Set	R
Veteran	Yes
Birth State	Ohio
Birth Country	United States
Birthplace (normalized)	ohio

1940

Scott-County, Iowa

Head, age 49

Scott-County, Iowa · implied b. ~1891 — 5 household members

Surname	Griffin
Given Name	Frank J.
Relationship to Head	Head
Sex	M
Color / Race	White
Age	49
Marital Status	Married
Birthplace	Ohio
1935 Residence (City)	Davenport City
1935 Residence (County)	Scott
Occupation	Fireman
Industry	City
Class of Worker	GW
Hours Worked	52
Income (1939)	1800
Highest Grade	No 9
1935 Residence	Same place
Birth State	Ohio
Birth Country	United States
Birthplace (normalized)	ohio

Model Tree

Linked across censuses

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

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This person

Anchor record

Frank Griffin

Head · 1940 · age 49 · b. ~1891 · Iowa

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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 — Scott-County, Iowa Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-01203-00520)

Line	Name	Age	Relation	Occupation	Birthplace
41	Anna Schuholz	76	Head	—	Illinois
42	Bertha Schuholz	40	Daughter	Teacher	Iowa
43	Fred Schuholz	38	Son	Salesman	Iowa
44	James Schuholz	20	Daughter	—	Iowa
45	Oliver John Hickey	62	Head	Clerk	Iowa
46	Nelle Hickey	58	Wife	—	Iowa
47	Harry Morse	83	Lodger	—	England
48	Winston Price	39	Head	Barber	Iowa
49	Hazel Price	36	Wife	—	Iowa
50	Nadene S. Price	13	Daughter	—	Iowa
51	Beverly A. Price	9	Daughter	—	Iowa
52	Reubin Lee	38	Head	Attendant	Iowa
53	Esther Lee	34	Wife	—	Iowa
54	Gary Lee	0	Son	—	Iowa
55	Curtis Schannum	24	Head	Salesman	North Dakota
56	Hilda Schannum	22	Wife	—	South Dakota
57	Curtis M. Schannum	3	Son	—	South Dakota
58	Nancy Linda Schannum	1	Daughter	—	Iowa
59	Frank J. Griffin THIS PERSON	49	Head	Fireman	Ohio
60	Dorthy Griffin	45	Wife	—	Iowa
61	Edward O. Griffin	24	Son	Attendant	Iowa
62	Jane A. Griffin	17	Daughter	—	Iowa
63	Marie Griffin	72	Mother	—	Ohio
64	Harvey Keyott	31	Head	Office Work	Wisconsin
65	Mina Keyott	28	Wife	—	Iowa
66	Richard Keyott	10	Son	—	Iowa
67	James Keyott	8	Son	—	Iowa
68	Thomas Keyott	3	Son	—	Iowa
69	Sherrill Keyott	5	Daughter	—	Iowa
70	Elizabeth Mielot	76	Head	—	Iowa
71	Margaret Altfilisch	81	Sister	—	Iowa
72	Carl W. Offerman	55	Lodger	Machinist	Iowa
73	Henrietta Offerman	52	Housekeeper	Housekeeper	Iowa
74	Clenny Morrison	40	Head	Truck Driver	Missouri
75	Eloise Morrison	38	Wife	—	Illinois
76	Eugene Morrison	16	Son	—	Iowa
77	James Morrison	14	Son	—	Iowa
78	Harold Morrison	4	Son	—	Iowa
79	Susan Johnson	33	Head	Fore-Lady	Iowa
80	Catherine Brooks	83	Head	—	New Jersey

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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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