John Harper — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · St.-Tammany-County, Louisiana

Our Model Tree links this John Harper across the 1930 and 1940 US Censuses in St.-Tammany-County, Louisiana (XGBoost, ~Confirmed) — first a head (b.~1891), then head of a 11-person household.

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

1940 Census Record Details

Census Year	1940
Location	St.-Tammany-County, Louisiana
Surname	Harper
Given Name	John J.
Relationship to Head	Head
Sex	M
Color / Race	White
Age	49
Marital Status	Married
Birthplace	Louisiana
1935 Residence (City)	Police Jury Ward 6
1935 Residence (County)	St Tammany
Additional Details
Occupation	Farming
Industry	own farm
Class of Worker	OA
Hours Worked	58
Income (1939)	80
Highest Grade	No 5
1935 Residence	Same place
Birth State	Louisiana
Birth Country	United States
Birthplace (normalized)	louisiana
Occupation	Farming
Township / Ward	Police Jury Ward 6
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.

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

Name	Relation to head	Relative to John	Age	Birth yr
Dorothy Harper	Daughter	—	12	~1928
Eula Harper	Daughter	—	10	~1930
Cara Harper	Daughter	—	7	~1933
Mary Harper	Daughter	—	17	~1923
Rosa Harper	Daughter	—	3	~1937
John Harper	Head	—	49	~1891
Milton Harper	Son	—	15	~1925
John Harper	Son	—	14	~1926
Willie Harper	Son	—	20	~1920
Paul Harper	Son	—	5	~1935
Doshie Harper	Spouse	—	40	~1900

Census Appearances

1930

St Tammany, …

Head, age 39

St Tammany, Louisiana · implied b. ~1891 — 7 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Harper
Given Name	John
Relationship to Head	Head
Sex	M
Color / Race	White
Age	39
Marital Status	Married
Birthplace	Louisiana
Age at First Marriage	27
Father's Birthplace	Louisiana
Mother's Birthplace	Louisiana
Occupation	Laborer
Industry	Logging work
Class of Worker	W
Can Read/Write	Yes
Home Owned/Rented	O
Home Value / Rent	400
Birth State	Louisiana
Birth Country	United States
Birthplace (normalized)	louisiana

1940

St.-Tammany-County, Louisiana

Head, age 49

St.-Tammany-County, Louisiana · implied b. ~1891 — 11 household members

Surname	Harper
Given Name	John J.
Relationship to Head	Head
Sex	M
Color / Race	White
Age	49
Marital Status	Married
Birthplace	Louisiana
1935 Residence (City)	Police Jury Ward 6
1935 Residence (County)	St Tammany
Occupation	Farming
Industry	own farm
Class of Worker	OA
Hours Worked	58
Income (1939)	80
Highest Grade	No 5
1935 Residence	Same place
Birth State	Louisiana
Birth Country	United States
Birthplace (normalized)	louisiana

Model Tree

Linked across censuses

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

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This person

Anchor record

John Harper

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

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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 — St.-Tammany-County, Louisiana Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-01455-00410)

Line	Name	Age	Relation	Occupation	Birthplace
1	Esther M. Vaughn	34	wife	Housekeeping	Louisiana
2	Clayton P. Vaughn	13	son	—	Louisiana
3	Rachel I. Vaughn	12	daughter	—	Louisiana
4	I. Florence Stafford	65	Head	Housekeeping	Mississippi
5	Corton Tobey	27	boy in family	Laborer	Louisiana
6	G. Onetta Tobey	16	wife	Housekeeping	Louisiana
7	Eaton E. Bowman	32	daughter	Packing	Louisiana
8	Frank C. Blackwell	42	Head	Farmer	Louisiana
9	Emma M. Blackwell	35	wife	Housekeeping	Louisiana
10	Edith L. Blackwell	13	daughter	—	Louisiana
11	Letha Blackwell	10	daughter	—	Louisiana
12	Ree Blackwell	4	daughter	—	Louisiana
13	Walter C. Blackwell	2	son	—	Louisiana
14	Henry O. Craddock	24	Head	Laborer	Louisiana
15	Gladys V. Craddock	19	wife	Housekeeping	Louisiana
16	Doris M. Craddock	2	daughter	—	Louisiana
17	Elbert L. Spell	33	Head	Farming	Mississippi
18	Hazel Spell	22	wife	Housekeeping	Mississippi
19	Jeanette M. Spell	2	daughter	—	Mississippi
20	Norma Burgdorf	47	Head	Housekeeping	Louisiana
21	William V. Belsom	20	son in law	Agent	Louisiana
22	Irma R. Belsom	19	daughter	Housekeeping	Louisiana
23	John J. Harper THIS PERSON	49	Head	Farming	Louisiana
24	Doshie M. Harper	40	wife	Housekeeping	Louisiana
25	Willie J. Harper	20	son	Janitor	Louisiana
26	"Mary H. ""Ab""" Harper	17	daughter	None	Louisiana
27	Milton A. Harper	15	son	None	Louisiana
28	John L. Harper	14	son	None	Louisiana
29	Dorothy D. Harper	12	daughter	—	Louisiana
30	Eula M. Harper	10	daughter	—	Louisiana
31	Cara L. Harper	7	daughter	—	Louisiana
32	Paul J. Harper	5	son	—	Louisiana
33	Rosa L. Harper	3	daughter	—	Louisiana
34	Willie J. Wood	61	Head	Watchman	Alabama
35	A. Elizabeth Wood	47	wife	Housekeeping	Louisiana
36	Alma A. Wood	19	daughter	None	Louisiana
37	Asalene A. Wood	18	daughter	Waitress	Louisiana
38	Ada E. Wood	16	daughter	New Worker	Louisiana
39	Edith L. Wood	14	daughter	School	Louisiana
40	William A. Wood	12	son	—	Louisiana

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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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