John Mackey — 1940 US Census Record

Model Tree available

1940 United States Federal Census · Salt-Lake-County, Utah

Our Model Tree links this John Mackey across the 1920, 1930 and 1940 US Censuses in Salt-Lake-County, Utah (XGBoost, ~Confirmed), with identified parents William & Mary — first a head (b.~1908), then head of a 5-person household.

Age 32 b. ~1908 Male Head Born: Utah Married

1940 Census Record Details

Census Year	1940
Location	Salt-Lake-County, Utah
Surname	Mackey
Given Name	John G
Relationship to Head	Head
Sex	M
Color / Race	White
Age	32
Marital Status	Married
Birthplace	Utah
1935 Residence (City)	Rocksprings
1935 Residence (County)	Sweetwater
Additional Details
Occupation	Night Watchman
Industry	Store Dept.
Class of Worker	PW
Hours Worked	40
Income (1939)	1020
Highest Grade	Hs 4
1935 Residence	Wyoming
Birth State	Utah
Birth Country	United States
Birthplace (normalized)	utah
Occupation	Night Watchman
Township / Ward	Salt Lake City
Est. Birth Year	~1908

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 John	Age	Birth yr
John Mackey	Head	—	32	~1908
Maurice Mackey	Son	—	5	~1935
Keith Mackey	Son	—	9	~1931
Lowell Mackey	Son	—	10	~1930
Frances Mackey	Spouse	—	32	~1908

Census Appearances

1920

Salt Lake, …

Son, age 13

Salt Lake, Utah · implied b. ~1907 — 11 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Mackay
Given Name	John I
Relationship to Head	Son
Sex	M
Color / Race	White
Age	13
Marital Status	Single
Birthplace	Utah
Father's Birthplace	Utah
Mother's Birthplace	Utah
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Birth State	Utah
Birth Country	United States
Birthplace (normalized)	utah

1930

Salt Lake, …

Son, age 22

Salt Lake, Utah · implied b. ~1908 — 4 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	MacKay
Given Name	John T.
Relationship to Head	Son
Sex	M
Color / Race	White
Age	22
Marital Status	Single
Birthplace	Utah
Father's Birthplace	Utah
Mother's Birthplace	Utah
Occupation	Secretary
Industry	Live Stock
Class of Worker	W
Can Read/Write	Yes
Birth State	Utah
Birth Country	United States
Birthplace (normalized)	utah

1940

Salt-Lake-County, Utah

Head, age 32

Salt-Lake-County, Utah · implied b. ~1908 — 5 household members

Surname	Mackey
Given Name	John G
Relationship to Head	Head
Sex	M
Color / Race	White
Age	32
Marital Status	Married
Birthplace	Utah
1935 Residence (City)	Rocksprings
1935 Residence (County)	Sweetwater
Occupation	Night Watchman
Industry	Store Dept.
Class of Worker	PW
Hours Worked	40
Income (1939)	1020
Highest Grade	Hs 4
1935 Residence	Wyoming
Birth State	Utah
Birth Country	United States
Birthplace (normalized)	utah

Model Tree

Model Tree available

Our Model Tree links John Mackey across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father William Mackay (~0.92 confidence) and mother Mary Mackay (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.

Show:

Gen 1 Parents confidence ≈ 0.92

Father

William Mackay

b. ~1865

Source father

● Household · direct · ~0.92

Mother

Mary Mackay

b. ~1867

Source mother

● Household · direct · ~0.92

This person

Anchor record

John Mackey

Head · 1940 · age 32 · b. ~1908 · Utah

★ 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 — Salt-Lake-County, Utah Open full size

Page Contents

38 people indexed on this census page (nara:1940:m-t0627-04225-00095)

Line	Name	Age	Relation	Occupation	Birthplace
1	Hanna H Guebell	56	Head	—	England
2	Winor Guebell	20	Daughter	Stenographer	Utah
3	Lawrence Guebell	17	Son	—	Wyoming
4	John G Mackey THIS PERSON	32	Head	Night Watchman	Utah
5	Frances D Mackey	32	Wife	—	Utah
6	Lowell J Mackey	10	Son	—	Utah
7	Keith Mackey	9	Son	—	Utah
8	Maurice Mackey	5	Son	—	Wyoming
9	J. B. Stoll	66	Head	Janitor	Germany
10	Sina F Stoll	66	Wife	—	Germany
11	Nole C Bell	28	Head	Clerk	Utah
12	Martha E Bell	30	Wife	—	Utah
13	Bruce N Bell	4	Son	—	Utah
14	Jerry R Bell	3	Son	—	Utah
16	Arnold W Conrad	33	Head	Labor	Utah
17	Bertha H Conrad	31	Wife	—	Utah
18	Constance N Conrad	14	Daughter	—	Utah
19	Bernhard H Conrad	12	Son	—	California
20	Richard A Conrad	11	Son	—	Utah
21	Arnold O Conrad	9	Son	—	California
22	Leon R Brown	35	Head	Manager	Utah
23	Ione L Brown	35	Wife	Bookkeeper	Utah
24	Sherman D Brown	10	Son	—	Utah
25	Dardis S Brown	2	Son	—	Utah
26	Smith B Quick	27	Head	Laborer	Utah
27	Mary A Quick	29	Wife	—	Utah
28	Frank W Salt	39	Head	Machinist	Utah
29	Emma Salt	38	Wife	—	Utah
30	Margaret R Salt	15	Daughter	—	Utah
31	Richard L Salt	13	Son	—	Utah
32	Samuel Kung	83	Father	—	Switzerland
33	William F Kung	17	Son	—	Utah
34	Richard P Worthen	19	Head	—	Utah
35	Dorothy P Worthen	19	Wife	—	Utah
36	George W Gatre	64	Head	—	Iowa
38	Peter G Brown	44	Head	Manager	Utah
39	Margaret S Brown	40	Wife	—	Wyoming
40	Jack Brown	18	Son	—	Utah

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Pedigree Summary

John

Gen 1 · 2 parents ~0.92

Max depth 4 (1900–1950 window)

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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