JM
John Mackey — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Salt-Lake-County, Utah
Our Model Tree links this John Mackey across the 1930 and 1940 US Censuses in Salt-Lake-County, Utah (XGBoost, ~Confirmed) — first a head (b.~1903), then head of a 6-person household.
Age 37
b. ~1903
Male
Head
Born: Utah
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Salt-Lake-County, Utah |
| Surname | Mackey |
| Given Name | John R |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Utah |
| 1935 Residence (City) | Precinct 5 |
| 1935 Residence (County) | Salt Lake |
| Additional Details | |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 100 |
| Income (1939) | 0 |
| Highest Grade | H 4 |
| 1935 Residence | Same House |
| Birth State | Utah |
| Birth Country | United States |
| Birthplace (normalized) | utah |
| Occupation | Farmer |
| Township / Ward | Precinct 5 |
| Est. Birth Year | ~1903 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Melva Mackey | Spouse | — | 33 | ~1907 |
| Norene Mackey | Daughter | — | 11 | ~1929 |
| Marian Mackey | Daughter | — | 9 | ~1931 |
| John Mackey | Head | — | 37 | ~1903 |
| Ralph Mackey | Son | — | 5 | ~1935 |
| Boyd Mackey | Son | — | 13 | ~1927 |
Census Appearances
1930
Salt Lake, …
Head, age 27
Salt Lake, Utah · implied b. ~1903 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mackay |
| Given Name | John R. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Married |
| Birthplace | Utah |
| Age at First Marriage | 23 |
| Father's Birthplace | Utah |
| Mother's Birthplace | Utah |
| Occupation | Field man |
| Industry | Sugar Factory |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Birth State | Utah |
| Birth Country | United States |
| Birthplace (normalized) | utah |
1940
Salt-Lake-County, Utah
Head, age 37
Salt-Lake-County, Utah · implied b. ~1903 — 6 household members
| Surname | Mackey |
| Given Name | John R |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Utah |
| 1935 Residence (City) | Precinct 5 |
| 1935 Residence (County) | Salt Lake |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 100 |
| Income (1939) | 0 |
| Highest Grade | H 4 |
| 1935 Residence | Same House |
| Birth State | Utah |
| Birth Country | United States |
| Birthplace (normalized) | utah |
Model Tree
An inferred pedigree reconstructed from census links — up to 4 generations within the 1900–1950 window. Closer generations are built from household co-residence; deeper ones are bridged by following a relative to their own childhood census. Confidence compounds and weakens with each generation.
Our Model Tree links John Mackey across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Mackey
Head · 1940 · age 37 · b. ~1903 · 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
1940 US Federal Census — Salt-Lake-County, Utah
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-04216-00102)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Fredrick Finlayson | 9 | Son | — | Utah |
| 42 | Janice Finlayson | 1 | Daughter | — | Utah |
| 43 | Horwood W Thomas | 55 | Head | Laborer | Utah |
| 44 | Annie W Thomas | 49 | Wife | — | Utah |
| 45 | Mary C Thomas | 18 | Daughter | — | Utah |
| 46 | Pearl R Williams | 42 | Head | — | Utah |
| 47 | Jessie J Leavitt | 29 | Head | Gardner | Utah |
| 48 | Phoebe Leavitt | 31 | Wife | — | Utah |
| 49 | Carol N Leavitt | 7 | Daughter | — | Utah |
| 50 | Sandra R Leavitt | 6 | Daughter | — | Utah |
| 51 | Violeta Leavitt | 4 | Daughter | — | Utah |
| 52 | Marguerite Leavitt | 3 | Daughter | — | Utah |
| 53 | Jessie N Leavitt | 1 | Son | — | Utah |
| 54 | Fred A Johnson | 34 | Head | Mechanic | Utah |
| 55 | Hazel Johnson | 29 | Wife | — | Utah |
| 56 | Dee Johnson | 11 | Son | — | Utah |
| 57 | Wendell Johnson | 10 | Son | — | Utah |
| 58 | Murlin R Pendleton | 34 | Head | Welder | Utah |
| 59 | Edith W Pendleton | 34 | Wife | — | Utah |
| 60 | June Pendleton | 10 | Daughter | — | California |
| 61 | Jack Pendleton | 8 | Son | — | Utah |
| 62 | Nancy Pendleton | 5 | Daughter | — | Utah |
| 63 | Sharon Pendleton | 2 | Daughter | — | Utah |
| 64 | Charles W Revis | 68 | Head | Farmer | England |
| 65 | Clara M Revis | 65 | Wife | — | Utah |
| 66 | James Devecchi | 54 | Head | Farmer | Italy |
| 67 | Josephine Devecchi | 48 | Wife | — | Italy |
| 68 | Mary Devecchi | 25 | Daughter | Seamstress | Texas |
| 69 | Frank Devecchi | 23 | Son | Farmer | Texas |
| 70 | Josephine Devecchi | 15 | Daughter | — | Utah |
| 71 | Elinor Devecchi | 8 | Daughter | — | Utah |
| 72 | John R Mackey THIS PERSON | 37 | Head | Farmer | Utah |
| 73 | Melva R Mackey | 33 | Wife | — | Utah |
| 74 | Boyd R Mackey | 13 | Son | — | Utah |
| 75 | Norene Mackey | 11 | Daughter | — | Utah |
| 76 | Marian Mackey | 9 | Daughter | — | Utah |
| 77 | Ralph Mackey | 5 | Son | — | Utah |
| 78 | Willard Barker | 28 | Head | Truck Driver | Utah |
| 79 | Evelyn Barker | 21 | Wife | — | Utah |
| 80 | Sheron Barker | 0 | Daughter | — | Utah |
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)