John Harmon — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Murray-County, Minnesota

Our Model Tree links this John Harmon across the 1920, 1930 and 1940 US Censuses in Murray-County, Minnesota (XGBoost, ~Confirmed) — first a head (b.~1892), then head of a 9-person household.

Age 48 b. ~1892 Male Head Born: Minnesota Married

1940 Census Record Details

Census Year	1940
Location	Murray-County, Minnesota
Surname	Harmon
Given Name	John J.
Relationship to Head	Head
Sex	M
Color / Race	White
Age	48
Marital Status	Married
Birthplace	Minnesota
1935 Residence (City)	Lowville Township
1935 Residence (County)	Murray
Additional Details
Occupation	Farmer
Industry	Farm
Class of Worker	OA
Hours Worked	70
Income (1939)	0
Highest Grade	Hs 8
1935 Residence	Minnesota
Birth State	Minnesota
Birth Country	United States
Birthplace (normalized)	minnesota
Occupation	Farmer
Township / Ward	Lowville Township
Est. Birth Year	~1892

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.

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

Name	Relation to head	Relative to John	Age	Birth yr
Gwendolyn Harmon	Daughter	—	21	~1919
Jean Harmon	Daughter	—	15	~1925
John Harmon	Head	—	48	~1892
Rose Myers	Other	—	67	~1873
Vincent Harmon	Son	—	22	~1918
Paul Harmon	Son	—	16	~1924
Mark Harmon	Son	—	9	~1931
Mose Harmon	Son	—	6	~1934
Ruth Harmon	Spouse	—	46	~1894

Census Appearances

1920

Murray, Minnesota

Head, age 28

Murray, Minnesota · implied b. ~1892 — 4 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Harmon
Given Name	John
Relationship to Head	Head
Sex	M
Color / Race	White
Age	28
Marital Status	Married
Birthplace	Minnesota
Naturalization Status	Naturalized
Father's Birthplace	Germany
Mother's Birthplace	Germany
Occupation	Farmer
Industry	General farm
Class of Worker	W
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Mother Tongue	German
Home Owned/Rented	R
Birth State	Minnesota
Birth Country	United States
Birthplace (normalized)	minnesota

1930

Murray, Minnesota

Head, age 38

Murray, Minnesota · implied b. ~1892 — 7 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Harmon
Given Name	John
Relationship to Head	Head
Sex	M
Color / Race	White
Age	38
Marital Status	Married
Birthplace	Minnesota
Age at First Marriage	24
Father's Birthplace	Germany
Mother's Birthplace	Germany
Occupation	Farmer
Industry	General farm
Class of Worker	W
Can Read/Write	Yes
Home Owned/Rented	10
Veteran	R
Birth State	Minnesota
Birth Country	United States
Birthplace (normalized)	minnesota

1940

Murray-County, Minnesota

Head, age 48

Murray-County, Minnesota · implied b. ~1892 — 9 household members

Surname	Harmon
Given Name	John J.
Relationship to Head	Head
Sex	M
Color / Race	White
Age	48
Marital Status	Married
Birthplace	Minnesota
1935 Residence (City)	Lowville Township
1935 Residence (County)	Murray
Occupation	Farmer
Industry	Farm
Class of Worker	OA
Hours Worked	70
Income (1939)	0
Highest Grade	Hs 8
1935 Residence	Minnesota
Birth State	Minnesota
Birth Country	United States
Birthplace (normalized)	minnesota

Model Tree

Linked across censuses

Our Model Tree links John Harmon 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 Harmon

Head · 1940 · age 48 · b. ~1892 · Minnesota

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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 — Murray-County, Minnesota Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-01941-00323)

Line	Name	Age	Relation	Occupation	Birthplace
1	John D. Guthier	47	Head	Farmer	Iowa
2	Minnie Guthier	45	Wife	—	Iowa
3	Bernice Guthier	25	Daughter	Egg Candling	Iowa
4	Verna Guthier	15	Daughter	—	Iowa
5	Leland Guthier	13	Son	—	Iowa
6	Jack Guthier	10	Son	—	Minnesota
7	Donna Fay Guthier	7	Daughter	—	Minnesota
8	Vernon Hollenbeck	40	Head	Farmer	Illinois
9	Minnie Hollenbeck	38	Wife	—	Illinois
10	Mary Louise Hollenbeck	7	Daughter	—	Iowa
11	William H. Ost	51	Head	Farmer	Illinois
12	Charles A. Olson	62	Head	Farmer	Sweden
13	Joseph H. Eystad	36	Head	Hired Hand	Minnesota
14	Beatrice Eystad	32	Wife	—	Wisconsin
15	Beverly Eystad	13	Daughter	—	Minnesota
16	Fern Eystad	11	Daughter	—	Minnesota
17	Howard Eystad	8	Son	—	Minnesota
18	James Eystad	6	Son	—	Minnesota
19	Twyla Eystad	4	Daughter	—	Minnesota
20	Albert R. Dickson	54	Head	Farmer	Illinois
21	Clara Dickson	48	Wife	—	Minnesota
22	Earl R. Dickson	20	Son	Farmer	Minnesota
23	Lois Dickson	16	Daughter	—	Minnesota
24	Jennie Johnson	52	Head	Sewing	Iowa
25	Amanda Johnson	50	Sister	—	Iowa
26	Alfred Johnson	48	Brother	Farmwork	Iowa
27	George Johnson	45	Brother	Farmer	Iowa
28	John J. Harmon THIS PERSON	48	Head	Farmer	Minnesota
29	Ruth Harmon	46	Wife	—	Iowa
30	Vincent Harmon	22	Son	Farmer	Minnesota
31	Gwendolyn Harmon	21	Daughter	—	Minnesota
32	Paul Harmon	16	Son	—	Minnesota
33	Jean Harmon	15	Daughter	—	Minnesota
34	Mark Harmon	9	Son	—	Minnesota
35	Mose Harmon	6	Son	—	Minnesota
36	Rose Myers	67	Mother-in-law	—	Iowa
37	Merrill P. Ingalls	27	Head	Farmer	Nebraska
38	Esther Ingalls	37	Wife	—	Nebraska
39	Merlyn Ingalls	10	Son	—	Nebraska
40	Gaylord Ingalls	1	Son	—	Minnesota

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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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