CP
Clarence Peterson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Vernon-County, Wisconsin
Our Model Tree links this Clarence Peterson across the 1920, 1930 and 1940 US Censuses in Vernon-County, Wisconsin (XGBoost, ~Confirmed), with identified parents Elmer & Elmer — first a son (b.~1920), then head of a 9-person household.
Age 20
b. ~1920
Male
Son
Born: Wisconsin
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Vernon-County, Wisconsin |
| Surname | Peterson |
| Given Name | Clarence |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Vernon |
| Additional Details | |
| Occupation | quarry |
| Industry | CCC |
| Class of Worker | GW |
| Hours Worked | 150 |
| Income (1939) | 360 |
| Highest Grade | No 8 |
| 1935 Residence | Wisconsin |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
| Occupation | Quarry |
| Township / Ward | Viroqua Town |
| Est. Birth Year | ~1920 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Clarence | Age | Birth yr |
|---|---|---|---|---|
| Elmer Peterson | Head | — | 56 | ~1884 |
| Clarence Peterson | Son | — | 20 | ~1920 |
| Elnora Peterson | Daughter | — | 18 | ~1922 |
| Palmer Peterson | Son | — | 10 | ~1930 |
| Alice Peterson | Daughter | — | 16 | ~1924 |
| Bernard Peterson | Son | — | 22 | ~1918 |
| Ruth Peterson | Daughter | — | 6 | ~1934 |
| Melvin Peterson | Son | — | 12 | ~1928 |
| Elvin Peterson | Son | — | 14 | ~1926 |
Census Appearances
1920
Vernon, Wisconsin
Son, age
Vernon, Wisconsin · implied b. ~1920 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Peterson |
| Given Name | Clarence |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| Father's Birthplace | Wisconsin |
| Mother's Birthplace | Wisconsin |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
1930
Vernon, Wisconsin
Son, age 10
Vernon, Wisconsin · implied b. ~1920 — 11 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Peterson |
| Given Name | Clarence |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| Father's Birthplace | Wisconsin |
| Mother's Birthplace | Wisconsin |
| Can Read/Write | Yes |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
1940
Vernon-County, Wisconsin
Son, age 20
Vernon-County, Wisconsin · implied b. ~1920 — 9 household members
| Surname | Peterson |
| Given Name | Clarence |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Vernon |
| Occupation | quarry |
| Industry | CCC |
| Class of Worker | GW |
| Hours Worked | 150 |
| Income (1939) | 360 |
| Highest Grade | No 8 |
| 1935 Residence | Wisconsin |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
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 Elmer Peterson (~0.92 confidence) and father Elmer Peterson (~0.92 confidence) and father Elmer Peterson (~0.92 confidence) and mother Annie Peterson (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Elmer Peterson
b. ~1884
Source father
● Household
· direct · ~0.92
Father
Elmer Peterson
b. ~1884
Source father
● Household
· direct · ~0.92
Father
Elmer Peterson
b. ~1887
Source father
● Household
· direct · ~0.92
Mother
Annie Peterson
b. ~1890
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Clarence Peterson
Son · 1940 · age 20 · b. ~1920 · Wisconsin
★ You are viewing this record
Sibling
Ruth Peterson
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Elnora Peterson
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Melvin Peterson
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Bernard Peterson
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Elvin Peterson
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Palmer Peterson
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alice Peterson
Sibling · 1940 · age 16
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 — Vernon-County, Wisconsin
Open full size
1940 US Federal Census — Vernon-County, Wisconsin
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-04530-00715)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Ole O. Espe | 35 | Head | Farmer | Norway |
| 2 | Lydia Espe | 32 | Wife | None | Wisconsin |
| 3 | Jerome D. Espe | 3 | Son | — | Wisconsin |
| 4 | Estelle C. Espe | 1 | Daughter | — | Wisconsin |
| 5 | Ray O. Mosher | 33 | Head | Truckman | Wisconsin |
| 6 | Jackie M. Mosher | 27 | Wife | Farmer | Wisconsin |
| 7 | Jerry Ray Mosher | 10 | Son | — | Wisconsin |
| 8 | Loretta Mosher | 9 | Daughter | — | Wisconsin |
| 9 | Hjalmer J. Jacobson | 33 | Head | Laborer | Wisconsin |
| 10 | Hilda S. Jacobson | 34 | Wife | — | Wisconsin |
| 11 | Alf H. Jacobson | 9 | Son | — | Wisconsin |
| 12 | Ernest J. Jacobson | 8 | Son | — | Wisconsin |
| 13 | Sherman H. Jacobson | 6 | Son | — | Wisconsin |
| 14 | Fredrick M. Jacobson | 4 | Son | — | Wisconsin |
| 15 | Betty Ann Jacobson | 3 | Daughter | — | Wisconsin |
| 16 | Albon O. Sordahl | 40 | Head | Farmer | Wisconsin |
| 17 | Viola M. Sordahl | 35 | Wife | — | Wisconsin |
| 18 | Janet L. Sordahl | 9 | Daughter | — | Wisconsin |
| 19 | Gulphid O. Sordahl | 40 | Head | Farmer | Wisconsin |
| 20 | Anna Sordahl | 70 | Mother | — | Wisconsin |
| 21 | Selmer Everson | 17 | Hired man | Laborer | Wisconsin |
| 22 | Melvin L. Hoff | 40 | Head | Farmer | Wisconsin |
| 23 | Thelma B. Hoff | 33 | Wife | — | Wisconsin |
| 24 | Rose Marie Hoff | 13 | Daughter | — | Wisconsin |
| 25 | Elmer L. Peterson | 56 | Head | Farmer | Wisconsin |
| 26 | Bernard Peterson | 22 | Son | Soil Erosion | Wisconsin |
| 27 | Clarence Peterson THIS PERSON | 20 | Son | Quarry | Wisconsin |
| 28 | Elnora Peterson | 18 | Daughter | — | Wisconsin |
| 29 | Alice Peterson | 16 | Daughter | — | Wisconsin |
| 30 | Elvin A. Peterson | 14 | Son | — | Wisconsin |
| 31 | Melvin H. Peterson | 12 | Son | — | Wisconsin |
| 32 | Palmer J. Peterson | 10 | Son | — | Wisconsin |
| 33 | Ruth D. Peterson | 6 | Daughter | — | Wisconsin |
| 34 | Theodore O. Lund | 42 | Head | Farmer | Wisconsin |
| 35 | Clara A. Lund | 41 | Wife | — | Wisconsin |
| 36 | Doris A. Lund | 13 | Daughter | — | Wisconsin |
| 37 | Helen May Lund | 10 | Daughter | — | Wisconsin |
| 38 | Esther L. Lund | 4 | Daughter | — | Wisconsin |
| 39 | Gerald T. Jacobson | 22 | Head | Farmer | Wisconsin |
| 40 | Earl F. Jacobson | 20 | Brother | Laborer | Wisconsin |
Related Census Records
Pedigree Summary
Clarence + 7 siblings
Gen 1 · 4 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)