CP
Clara Peterson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Utah-County, Utah
Our Model Tree links this Clara Peterson across the 1930 and 1940 US Censuses in Utah-County, Utah (XGBoost, ~Confirmed) — first a daughter (b.~1910), then head of a 7-person household.
Age 30
b. ~1910
Female
Daughter
Born: Utah
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Utah-County, Utah |
| Surname | Peterson |
| Given Name | Clara |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 30 |
| Marital Status | Single |
| Birthplace | Utah |
| 1935 Residence (City) | Spanish Fork Precinct |
| 1935 Residence (County) | Utah |
| Additional Details | |
| Occupation | Secretary |
| Industry | Doc. Off. |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 450 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Utah |
| Birth Country | United States |
| Birthplace (normalized) | utah |
| Occupation | Secretary |
| Township / Ward | Spanish Fork Precinct |
| Est. Birth Year | ~1910 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Clara | Age | Birth yr |
|---|---|---|---|---|
| Clara Peterson | Daughter | — | 30 | ~1910 |
| Wylls Peterson | Son | — | 24 | ~1916 |
| Florence Peterson | Spouse | — | 55 | ~1885 |
| Elva Peterson | Daughter | — | 15 | ~1925 |
| Willard Peterson | Head | — | 58 | ~1882 |
| Herbert Peterson | Son | — | 28 | ~1912 |
| Lynn Peterson | Son | — | 21 | ~1919 |
Census Appearances
1930
Utah, Utah
Daughter, age 19
Utah, Utah · implied b. ~1911 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Peterson |
| Given Name | Clara |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Utah |
| Father's Birthplace | Utah |
| Mother's Birthplace | Nevada |
| Occupation | Stenographer |
| Industry | Wholesale Warehouse |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Utah |
| Birth Country | United States |
| Birthplace (normalized) | utah |
1940
Utah-County, Utah
Daughter, age 30
Utah-County, Utah · implied b. ~1910 — 7 household members
| Surname | Peterson |
| Given Name | Clara |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 30 |
| Marital Status | Single |
| Birthplace | Utah |
| 1935 Residence (City) | Spanish Fork Precinct |
| 1935 Residence (County) | Utah |
| Occupation | Secretary |
| Industry | Doc. Off. |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 450 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| 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 Clara Peterson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Clara Peterson
Daughter · 1940 · age 30 · b. ~1910 · Utah
★ You are viewing this record
Sibling
Lynn Peterson
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Herbert Peterson
Sibling · 1940 · age 28
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Wylls Peterson
Sibling · 1940 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Elva Peterson
Sibling · 1940 · age 15
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 — Utah-County, Utah
Open full size
1940 US Federal Census — Utah-County, Utah
Page Contents
38 people indexed on this census page (nara:1940:m-t0627-04220-00718)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Elva Galloway | 18 | Daughter | — | Utah |
| 42 | Ralph Galloway | 16 | Son | — | Utah |
| 43 | Charles Galloway | 14 | Son | — | Utah |
| 44 | Alvin Galloway | 10 | Son | — | Utah |
| 45 | Darlene Galloway | 8 | Daughter | — | Utah |
| 46 | Stephen Markham | 54 | Head | Farmer | Utah |
| 47 | Phoebe Markham | 52 | Wife | — | Utah |
| 48 | Lynn Markham | 25 | Son | — | Utah |
| 49 | Joseph Markham | 45 | Head | Farmer | Utah |
| 50 | Iris Markham | 44 | Wife | — | Utah |
| 51 | Gladys Markham | 22 | Daughter | Teacher | Utah |
| 52 | Beth Markham | 19 | Daughter | — | Utah |
| 53 | Eliza Markham | 9 | Daughter | — | Utah |
| 54 | Lois Markham | 7 | Daughter | — | Utah |
| 55 | Wm Chambers | 12 | Head | Farmer | Utah |
| 56 | Keith Chambers | 19 | Son | Aid On Above Farm | Utah |
| 57 | Gerald Chambers | 16 | Son | — | Utah |
| 58 | John H Beck | 67 | Head | Farmer | Utah |
| 59 | Leila Beck | 65 | Wife | — | Utah |
| 61 | Almira Thomas | 60 | Head | Govt. Relief | Utah |
| 62 | Isaac Beck | 76 | Head | Pension | Utah |
| 63 | Son Demerr | 32 | Head | Farmer | Utah |
| 64 | Helen Demerr | 29 | Wife | — | Utah |
| 65 | Betty Lou Demerr | 8 | Daughter | — | Utah |
| 66 | Blokall Demerr | 5 | Son | — | Utah |
| 67 | Willard Peterson | 58 | Head | Farmer | Utah |
| 68 | Florence Peterson | 55 | Wife | — | Utah |
| 69 | Clara Peterson THIS PERSON | 30 | Daughter | Secretary | Utah |
| 70 | Herbert Peterson | 28 | Son | Driver | Utah |
| 71 | Wylls Peterson | 24 | Son | Aid. | Utah |
| 72 | Lynn Peterson | 21 | Son | — | Utah |
| 73 | Elva Peterson | 15 | Daughter | — | Utah |
| 74 | John H Stoker | 24 | Head | Farmer | Utah |
| 75 | Enora Stoker | 21 | Wife | — | Utah |
| 76 | Gayle Stoker | 1 | Daughter | — | Utah |
| 77 | Ben Stoker | 63 | Head | Pension | Utah |
| 78 | Mary Stoker | 70 | Wife | Pension | Utah |
| 79 | Julida Stoker | 45 | 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)