John Fitzgerald — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Delaware-County, Iowa

Our Model Tree links this John Fitzgerald across the 1920, 1930 and 1940 US Censuses in Delaware-County, Iowa (XGBoost, ~Confirmed) — first a head (b.~1873), then head of a 3-person household.

Age 67 b. ~1873 Male Head Born: Iowa Married

1940 Census Record Details

Census Year	1940
Location	Delaware-County, Iowa
Surname	Fitzgerald
Given Name	John
Relationship to Head	Head
Sex	M
Color / Race	White
Age	67
Marital Status	Married
Birthplace	Iowa
1935 Residence (City)	North Fork
1935 Residence (County)	Delaware
Additional Details
Occupation	Farmer
Industry	Gen. Farming
Class of Worker	OA
Hours Worked	70
Income (1939)	450
Highest Grade	No 8
1935 Residence	Same place
Birth State	Iowa
Birth Country	United States
Birthplace (normalized)	iowa
Occupation	Farmer
Township / Ward	North Fork
Est. Birth Year	~1873

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
Catherine Fitzgerald	Daughter	—	22	~1918
John Fitzgerald	Head	—	67	~1873
Louise Fitzgerald	Spouse	—	67	~1873

Census Appearances

1920

Delaware, Iowa

Head, age 46

Delaware, Iowa · implied b. ~1874 — 7 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Fitzgerald
Given Name	John
Relationship to Head	Head
Sex	M
Color / Race	White
Age	46
Marital Status	Married
Birthplace	Iowa
Father's Birthplace	Ireland
Mother's Birthplace	Ireland
Occupation	Farmer
Industry	General farm
Class of Worker	OA
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Mother Tongue	Irish
Home Owned/Rented	O
Home Free/Mortgaged	M
Birth State	Iowa
Birth Country	United States
Birthplace (normalized)	iowa

1930

Delaware, Iowa

Head, age 57

Delaware, Iowa · implied b. ~1873 — 4 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Fitzgerald
Given Name	John B
Relationship to Head	Head
Sex	M
Color / Race	White
Age	57
Marital Status	Married
Birthplace	Iowa
Age at First Marriage	21
Father's Birthplace	Irish Free State
Mother's Birthplace	Irish Free State
Occupation	Farmer
Industry	General farm
Class of Worker	O
Can Read/Write	Yes
Home Owned/Rented	O
Radio Set	R
Birth State	Iowa
Birth Country	United States
Birthplace (normalized)	iowa

1940

Delaware-County, Iowa

Head, age 67

Delaware-County, Iowa · implied b. ~1873 — 3 household members

Surname	Fitzgerald
Given Name	John
Relationship to Head	Head
Sex	M
Color / Race	White
Age	67
Marital Status	Married
Birthplace	Iowa
1935 Residence (City)	North Fork
1935 Residence (County)	Delaware
Occupation	Farmer
Industry	Gen. Farming
Class of Worker	OA
Hours Worked	70
Income (1939)	450
Highest Grade	No 8
1935 Residence	Same place
Birth State	Iowa
Birth Country	United States
Birthplace (normalized)	iowa

Model Tree

Linked across censuses

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

Show:

This person

Anchor record

John Fitzgerald

Head · 1940 · age 67 · b. ~1873 · Iowa

★ You are viewing this record

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

Original Census Page

1940 US Federal Census — Delaware-County, Iowa Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-01155-00400)

Line	Name	Age	Relation	Occupation	Birthplace
41	Drumbarger	24	Hired Man	Farming	Iowa
42	John Fitzgerald THIS PERSON	67	Head	Farmer	Iowa
43	Louise Fitzgerald	67	Wife	—	Iowa
44	Catherine Fitzgerald	22	Daughter	—	Iowa
45	Walter Sherlock	36	Head	Farmer	Iowa
46	Marguerite Sherlock	36	Wife	—	Iowa
47	Elaine Sherlock	1	Daughter	—	Iowa
48	Rosalee Sherlock	0	Daughter	—	Iowa
49	Richard Sherlock	22	Head	—	Iowa
50	Margaret Sherlock	20	Wife	—	Iowa
51	John B. Collins	24	Head	Farmer	New York
52	Edward Collins	3	Son	C.C.C. Work	Iowa
53	Eileen Collins	1	Daughter	—	Iowa
54	Regina Collins	0	Daughter	—	Iowa
55	Sylvester Lahr	29	Head	Farmer	Iowa
56	Mabel Lahr	29	Wife	—	Iowa
57	Henry N. Curry	73	Father-in-law	Farm Laborer	Iowa
58	Herman Weber	44	Head	Farm Laborer	Iowa
59	Leona Weber	45	Wife	—	Iowa
60	Jerome Weber	13	Son	—	Nebraska
61	Bernard Weber	11	Son	—	Nebraska
62	Clara Mae Weber	9	Daughter	—	Nebraska
63	Margaret Weber	7	Daughter	—	Nebraska
64	Bernadette Weber	6	Daughter	—	Nebraska
65	Richard Weber	4	Son	—	Nebraska
66	Donald Weber	2	Son	—	Nebraska
67	Alfred Oggerman	35	Head	Farmer	Iowa
68	Malvina Oggerman	36	Wife	—	Iowa
69	Leon Oggerman	10	Son	—	Iowa
70	Norma Oggerman	8	Daughter	—	Iowa
71	Lois Oggerman	6	Daughter	—	Iowa
72	Theresa Oggerman	3	Daughter	—	Iowa
73	Ernest Oggerman	0	Son	—	Iowa
74	Bernard Stelken	22	Hired Man	Farm Laborer	Iowa
75	Nicholas Jr. Klaren	29	Head	Farmer	Iowa
76	Armella Klaren	25	Wife	—	Iowa
77	Frederick Klaren	2	Son	—	Iowa
78	Elizabeth Klaren	0	Daughter	—	Iowa
79	Raymond Schlarmann	29	Head	Farmer	Iowa
80	Veronica Schlarmann	33	Wife	—	Iowa

Search for John Fitzgerald

All John Fitzgerald Census Records Discover Fitzgerald Family Tree

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)

Report inaccurate data