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Robert Harmon — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Salt-Lake-County, Utah
Our Model Tree links this Robert Harmon across the 1930 and 1940 US Censuses in Salt-Lake-County, Utah (XGBoost, ~Confirmed) — first a son (b.~1928), then head of a 10-person household.
Age 12
b. ~1928
Male
Son
Born: Utah
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Salt-Lake-County, Utah |
| Surname | Harmon |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Utah |
| 1935 Residence (City) | Magna |
| 1935 Residence (County) | Salt Lake |
| Additional Details | |
| Highest Grade | G-6 |
| 1935 Residence | Same house |
| Birth State | Utah |
| Birth Country | United States |
| Birthplace (normalized) | utah |
| Township / Ward | Magna |
| Est. Birth Year | ~1928 |
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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Floyd Harmon | Son | — | 14 | ~1926 |
| Carol Harmon | Daughter | — | 6 | ~1934 |
| Robert Harmon | Son | — | 12 | ~1928 |
| Florence Harmon | Head | — | 47 | ~1893 |
| Lynn Harmon | Son | — | 10 | ~1930 |
| Irene Harmon | Daughter | — | 22 | ~1918 |
| Edwin Harmon | Son | — | 20 | ~1920 |
| Dorothy Harmon | Daughter | — | 18 | ~1922 |
| La Harmon | Daughter | — | 16 | ~1924 |
| Lorraine Harmon | Daughter | — | 16 | ~1924 |
Census Appearances
1930
Salt Lake, …
Son, age 2
Salt Lake, Utah · implied b. ~1928 — 11 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Harmon |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Utah |
| Father's Birthplace | Utah |
| Mother's Birthplace | Utah |
| Occupation | none |
| Birth State | Utah |
| Birth Country | United States |
| Birthplace (normalized) | utah |
1940
Salt-Lake-County, Utah
Son, age 12
Salt-Lake-County, Utah · implied b. ~1928 — 10 household members
| Surname | Harmon |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Utah |
| 1935 Residence (City) | Magna |
| 1935 Residence (County) | Salt Lake |
| Highest Grade | G-6 |
| 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 Robert Harmon across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Robert Harmon
Son · 1940 · age 12 · b. ~1928 · Utah
★ You are viewing this record
Sibling
Dorothy Harmon
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lynn Harmon
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edwin Harmon
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lorraine Harmon
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
La Harmon
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Floyd Harmon
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Carol Harmon
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Irene Harmon
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
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-t0627-04215-00884)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Peter W Christensen | 60 | Head | Janitor | Utah |
| 42 | Tressa Christensen | 57 | Wife | — | Utah |
| 43 | Jessie Christensen | 16 | Daughter | — | Utah |
| 44 | Florence D Harmon | 47 | Head | — | Utah |
| 45 | Irene Harmon | 22 | Daughter | Saleslady | Utah |
| 46 | Edwin Harmon | 20 | Son | Mill Flotation Operator | Utah |
| 47 | Dorothy Harmon | 18 | Daughter | Housemaid | Utah |
| 48 | La Rue Harmon | 16 | Daughter | — | Utah |
| 49 | Lorraine Harmon | 16 | Daughter | — | Utah |
| 50 | Floyd Harmon | 14 | Son | — | Utah |
| 51 | Robert Harmon THIS PERSON | 12 | Son | — | Utah |
| 52 | Lynn Harmon | 10 | Son | — | Utah |
| 53 | Carol Harmon | 6 | Daughter | — | Utah |
| 54 | Moses Brotherton | 27 | Head | Apprentice Blacksmith | Utah |
| 55 | Mary D Brotherton | 24 | Wife | — | Utah |
| 56 | Russell V Bird | 22 | Head | Laborer | Utah |
| 57 | Laura D Bird | 22 | Wife | — | Utah |
| 58 | Stephen Bird | 1 | Son | — | Utah |
| 59 | Charles D Angell | 27 | Head | Mill Operator | Utah |
| 60 | Edna Rae Angell | 22 | Wife | — | Utah |
| 61 | Gloria Rae Angell | 3 | Daughter | — | Utah |
| 62 | Judy Carol Angell | 0 | Daughter | — | Utah |
| 63 | Theodore Ek | 63 | Head | — | Sweden |
| 64 | Marvin Ek | 28 | Son | Laborer | Utah |
| 65 | Rebecca D Ek | 27 | Daughter-in-law | Stay Operator | Utah |
| 66 | Verna Ek | 6 | Grand-daughter | — | Utah |
| 67 | Marlin Ek | 3 | Grand-son | — | Utah |
| 68 | Glen D Bergstrom | 20 | Head | Farming | Utah |
| 69 | Walter Bergstrom | 22 | Brother | Truck Driver | Utah |
| 70 | Marvin D Coon | 22 | Head | Laborer | Utah |
| 71 | Joy Coon | 17 | Wife | Saleslady | Utah |
| 72 | Don B Searle | 24 | Head | Laborer | Utah |
| 73 | Lenore D Searle | 21 | Wife | — | Utah |
| 74 | Donna Searle | 2 | Daughter | — | Utah |
| 75 | Laura D Rasmussen | 48 | Head | — | Utah |
| 76 | Clarissa Rasmussen | 21 | Daughter | Operational Instructor | Utah |
| 77 | Reed Rasmussen | 16 | Son | Janitor | Utah |
| 78 | Betty Jane Rasmussen | 14 | Daughter | — | Utah |
| 79 | Eugene Rasmussen | 13 | Son | — | Utah |
| 80 | David L Jones | 46 | Head | Carpenter | 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)