Frank Mason — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Jefferson-County, Idaho

Our Model Tree links this Frank Mason across the 1920, 1930 and 1940 US Censuses in Jefferson-County, Idaho (XGBoost, ~Confirmed) — first a head (b.~1887), then head of a 4-person household.

Age 53 b. ~1887 Male Head Born: Utah Married

1940 Census Record Details

Census Year	1940
Location	Jefferson-County, Idaho
Surname	Mason
Given Name	Frank
Relationship to Head	Head
Sex	M
Color / Race	White
Age	53
Marital Status	Married
Birthplace	Utah
1935 Residence (City)	Rigby City
1935 Residence (County)	Jefferson
Additional Details
Occupation	Livestock Dealer
Industry	Livestock
Class of Worker	OA
Hours Worked	45
Income (1939)	132
Highest Grade	C-2
1935 Residence	Same House
Birth State	Utah
Birth Country	United States
Birthplace (normalized)	utah
Occupation	Livestock Dealer
Township / Ward	Rigby City
Est. Birth Year	~1887

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.

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

Name	Relation to head	Relative to Frank	Age	Birth yr
Vaughn Mason	Son	—	23	~1917
Frank Mason	Head	—	53	~1887
Vallie Mason	Spouse	—	54	~1886
Len Mason	Son	—	21	~1919

Census Appearances

1920

Jefferson, Idaho

Head, age 35

Jefferson, Idaho · implied b. ~1885 — 6 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Mason
Given Name	Frank
Relationship to Head	Head
Sex	M
Color / Race	White
Age	35
Marital Status	Married
Birthplace	Utah
Father's Birthplace	England
Mother's Birthplace	England
Occupation	Commission
Industry	Warehouse
Class of Worker	OA
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Home Owned/Rented	O
Home Free/Mortgaged	F
Birth State	Utah
Birth Country	United States
Birthplace (normalized)	utah

1930

Jefferson, Idaho

Head, age 45

Jefferson, Idaho · implied b. ~1885 — 5 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Mason
Given Name	Frank M.
Relationship to Head	Head
Sex	M
Color / Race	White
Age	45
Marital Status	Married
Birthplace	Utah
Age at First Marriage	23
Father's Birthplace	United States
Mother's Birthplace	United States
Occupation	Merchant
Industry	Retail Store
Class of Worker	OA
Can Read/Write	Yes
Home Owned/Rented	O
Home Value / Rent	3500
Radio Set	R
Birth State	Utah
Birth Country	United States
Birthplace (normalized)	utah

1940

Jefferson-County, Idaho

Head, age 53

Jefferson-County, Idaho · implied b. ~1887 — 4 household members

Surname	Mason
Given Name	Frank
Relationship to Head	Head
Sex	M
Color / Race	White
Age	53
Marital Status	Married
Birthplace	Utah
1935 Residence (City)	Rigby City
1935 Residence (County)	Jefferson
Occupation	Livestock Dealer
Industry	Livestock
Class of Worker	OA
Hours Worked	45
Income (1939)	132
Highest Grade	C-2
1935 Residence	Same House
Birth State	Utah
Birth Country	United States
Birthplace (normalized)	utah

Model Tree

Linked across censuses

Our Model Tree links Frank Mason 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 Mason

Head · 1940 · age 53 · b. ~1887 · Idaho

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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 — Jefferson-County, Idaho Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-00747-00699)

Line	Name	Age	Relation	Occupation	Birthplace
1	Marcus Durham	52	Head	Agent	Missouri
2	Mae Durham	50	Wife	—	Missouri
3	Marjorie Durham	21	Daughter	Clerk & Stenog	Missouri
4	Howard Durham	14	Son	Student	Missouri
5	Almon Harmon	42	Head	Operator	Idaho
6	Ada Harmon	35	Wife	—	Idaho
7	Lois D. Harmon	16	Daughter	—	Idaho
8	Maxine Harmon	12	Daughter	—	Idaho
9	Green Taylor	72	Head	—	Utah
10	Christine Taylor	72	Wife	—	Utah
11	Son Libord	None	M	Grain Elevator	—
12	Wilmer Kingham	31	Head	Teacher	Idaho
13	Edith Kingham	29	Wife	—	Utah
14	Wilford Kingham	4	Son	—	Idaho
15	Clyde Kingham	2	Son	—	Idaho
16	John Kingham	0	Son	—	Idaho
17	William Tutt	23	Head	Laborer	Idaho
18	Anna Tutt	17	Wife	—	Idaho
19	Albert Dunn	43	Head	Laborer	Mississippi
20	Lydia Dunn	47	Wife	—	Utah
21	Thomas Dunn	22	Son	Sports Director	Utah
22	Matthew Howe	27	Head	Meat Cutter	Utah
23	Neta Howe	33	Wife	—	Utah
24	Barbara Howe	3	Daughter	—	Idaho
25	Earl Mckeague	42	Head	Farmer	Montana
26	Lavella Mckeague	35	Wife	—	Idaho
27	Charley Mckeague	10	Son	—	Idaho
28	Earl Mckeague	5	Son	—	Idaho
29	Wesley Mckeague	78	Father	—	Quebec
30	Lydia Bishop	42	Head	Salesman	Utah
31	Gwendolyn Bishop	21	Daughter	—	Utah
32	Willard Bishop	19	Son	Janitor	Idaho
33	Dorothy Bishop	10	Daughter	—	Idaho
34	Clarence Snow	41	Lodger	Laborer	Indiana
35	Frank Mason THIS PERSON	53	Head	Livestock Dealer	Utah
36	Vallie M. Mason	54	Wife	Clerk	Utah
37	Vaughn Mason	23	Son	Laborer	Idaho
38	Len Mason	21	Son	Evaporator	Idaho
39	Howell Olsen	43	Head	Laborer	Utah
40	Mable Olsen	41	Wife	—	Utah

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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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