CP
Clarence Peterson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Salt-Lake-County, Utah
Our Model Tree links this Clarence Peterson across the 1920, 1930 and 1940 US Censuses in Salt-Lake-County, Utah (XGBoost, ~Confirmed), with identified parents Carl & Carl — first a head (b.~1913), then head of a 4-person household.
Age 27
b. ~1913
Male
Head
Born: Utah
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Salt-Lake-County, Utah |
| Surname | Peterson |
| Given Name | Clarence |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Married |
| Birthplace | Utah |
| 1935 Residence (City) | Salt Lake |
| 1935 Residence (County) | Salt Lake |
| Additional Details | |
| Occupation | Sanitation Man |
| Industry | S. L. Project |
| Class of Worker | GW |
| Hours Worked | 48 |
| Income (1939) | 731 |
| Highest Grade | Hs 1 |
| 1935 Residence | Utah |
| Birth State | Utah |
| Birth Country | United States |
| Birthplace (normalized) | utah |
| Occupation | Sanitation Man |
| Township / Ward | Salt Lake City |
| Est. Birth Year | ~1913 |
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 Clarence | Age | Birth yr |
|---|---|---|---|---|
| Pasty Peterson | Daughter | — | 4 | ~1936 |
| Laurin Peterson | Son | — | 3 | ~1937 |
| Clarence Peterson | Head | — | 27 | ~1913 |
| Nora Peterson | Spouse | — | 22 | ~1918 |
Census Appearances
1920
Salt Lake, …
Son, age 7
Salt Lake, Utah · implied b. ~1913 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Petersen |
| Given Name | Clarence |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Utah |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Denmark |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Utah |
| Birth Country | United States |
| Birthplace (normalized) | utah |
1930
Salt Lake, …
Son, age 17
Salt Lake, Utah · implied b. ~1913 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Peterson |
| Given Name | Clarence |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Utah |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Denmark |
| Can Read/Write | Yes |
| Birth State | Utah |
| Birth Country | United States |
| Birthplace (normalized) | utah |
1940
Salt-Lake-County, Utah
Head, age 27
Salt-Lake-County, Utah · implied b. ~1913 — 4 household members
| Surname | Peterson |
| Given Name | Clarence |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Married |
| Birthplace | Utah |
| 1935 Residence (City) | Salt Lake |
| 1935 Residence (County) | Salt Lake |
| Occupation | Sanitation Man |
| Industry | S. L. Project |
| Class of Worker | GW |
| Hours Worked | 48 |
| Income (1939) | 731 |
| Highest Grade | Hs 1 |
| 1935 Residence | Utah |
| 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 Clarence Peterson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Carl Petersen (~0.92 confidence) and father Carl Peterson (~0.92 confidence) and mother Mary Petersen (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Carl Petersen
b. ~1869
Source father
● Household
· direct · ~0.92
Father
Carl Peterson
b. ~1870
Source father
● Household
· direct · ~0.92
Mother
Mary Petersen
b. ~1876
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Clarence Peterson
Head · 1940 · age 27 · b. ~1913 · 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-t0627-04223-00057)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Georgiana Geddes | 2 | Daughter | — | Utah |
| 42 | Henry D. F. Lindgren | 42 | Head | Checker | Utah |
| 43 | Marie Lindgren | 37 | Wife | Housewife | Utah |
| 44 | Harald Lindgren | 12 | Son | — | Utah |
| 45 | Sophie Kaslovitz | 54 | Head | Manager | Russia |
| 46 | Jesse Mccherron | 46 | Head | Laborer | New Mexico |
| 47 | Pearl Mccherron | 45 | Wife | Housewife | Utah |
| 48 | Betty Jean Mccherron | 12 | Daughter | — | Utah |
| 49 | Jerry Mccherron | 9 | Son | — | Utah |
| 50 | Barbara Ann Mccherron | 1 | Daughter | — | Utah |
| 51 | Charles Dix | 33 | Head | Produce Agent | Utah |
| 52 | Pearl Dix | 25 | Wife | Housewife | So Dakota |
| 53 | John Thomas Dix | 4 | Son | — | Utah |
| 54 | Kathrine Dix | 2 | Daughter | — | Utah |
| 55 | Vivian Peterson | 30 | Head | Laborer | Utah |
| 56 | Clarence Peterson THIS PERSON | 27 | Head | Sanitation Man | Utah |
| 57 | Nora Peterson | 22 | Wife | Housewife | Utah |
| 58 | Pasty Jane Peterson | 4 | Daughter | — | Utah |
| 59 | Laurin Peterson | 3 | Son | — | Utah |
| 60 | J. M. Peterson | 27 | Head | Plumber | Utah |
| 61 | Ruth Agnes Peterson | 21 | Wife | Housewife | Iowa |
| 62 | Nancy Jean Peterson | 3 | Daughter | — | Utah |
| 63 | Fred P. Peterson | 1 | Son | — | Utah |
| 64 | Bert Mill | 36 | Head | Fry Cook | Utah |
| 65 | Rose Mill | 31 | Wife | Housewife | Utah |
| 66 | Lois L. Mill | 10 | Daughter | — | Utah |
| 67 | George Moffat | 23 | Head | Radio Service | Utah |
| 68 | Lucile Moffat | 23 | Wife | Housewife | Utah |
| 69 | Dennis Moffat | 1 | Son | — | Utah |
| 70 | J. F. Curtis | 30 | Head | Orderly | Utah |
| 71 | Ruth Curtis | 30 | Wife | Seamstress | Utah |
| 72 | Royce Curtis | 11 | Daughter | — | Utah |
| 73 | Jean Curtis | 8 | Daughter | — | Utah |
| 74 | Brent Curtis | 6 | Son | — | Utah |
| 75 | Don Curtis | 1 | Son | — | Utah |
| 76 | Charles Parker | 48 | Head | Roadman | Mississippi |
| 77 | Lucinda Parker | 48 | Wife | Housewife | Utah |
| 78 | Raeola Parker | 15 | Daughter | — | Utah |
| 79 | Ernest Voss | 24 | Head | Truck Driver | Holland |
| 80 | Ruth Voss | 23 | Wife | Housewife | Utah |
Pedigree Summary
Clarence
Gen 1 · 3 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)