CP
Clarence Peterson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Marshall-County, Minnesota
Our Model Tree links this Clarence Peterson across the 1920, 1930 and 1940 US Censuses in Marshall-County, Minnesota (XGBoost, ~Confirmed), with identified parents Eliza & Oscar — first a head (b.~1909), then head of a 4-person household.
Age 31
b. ~1909
Male
Head
Born: Minnesota
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Marshall-County, Minnesota |
| Surname | Peterson |
| Given Name | Clarence H. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Minnesota |
| 1935 Residence (City) | Warren City |
| 1935 Residence (County) | Marshall |
| Additional Details | |
| Occupation | Traveling Salesman |
| Industry | Wholesale Meat Co. |
| Class of Worker | PW |
| Hours Worked | 52 |
| Income (1939) | 278 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
| Occupation | Traveling Salesman |
| Township / Ward | Warren City |
| Est. Birth Year | ~1909 |
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 |
|---|---|---|---|---|
| Clarence Peterson | Head | — | 31 | ~1909 |
| Marlyce Peterson | Daughter | — | 4 | ~1936 |
| Bernice Peterson | Spouse | — | 24 | ~1916 |
| Marilyn Peterson | Daughter | — | ~1940 |
Census Appearances
1920
Marshall, Minnesota
Son, age 11
Marshall, Minnesota · implied b. ~1909 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Peterson |
| Given Name | Clarence A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Norway |
| Mother's Birthplace | Minnesota |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1930
Marshall, Minnesota
Son, age 21
Marshall, Minnesota · implied b. ~1909 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Peterson |
| Given Name | Clarence H. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Norway |
| Mother's Birthplace | Minnesota |
| Occupation | Laborer |
| Industry | General Farm |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1940
Marshall-County, Minnesota
Head, age 31
Marshall-County, Minnesota · implied b. ~1909 — 4 household members
| Surname | Peterson |
| Given Name | Clarence H. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Minnesota |
| 1935 Residence (City) | Warren City |
| 1935 Residence (County) | Marshall |
| Occupation | Traveling Salesman |
| Industry | Wholesale Meat Co. |
| Class of Worker | PW |
| Hours Worked | 52 |
| Income (1939) | 278 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
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: mother Eliza Peterson (~0.92 confidence) and father Oscar Peterson (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Eliza Peterson
b. ~1876
Source mother
● Household
· direct · ~0.92
Father
Oscar Peterson
b. ~1876
Source father
● Household
· direct · ~0.92
This person
Anchor record
Clarence Peterson
Head · 1940 · age 31 · b. ~1909 · Minnesota
★ 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 — Marshall-County, Minnesota
Open full size
1940 US Federal Census — Marshall-County, Minnesota
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01936-00821)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Phillip Marshall | 6 | Head | — | Minnesota |
| 2 | Barbara Marshall | 5 | Daughter | — | Minnesota |
| 3 | Ole Anderson | 66 | Lodger | Carpenter | Sweden |
| 4 | Clarence H. Peterson THIS PERSON | 31 | Head | Traveling Salesman | Minnesota |
| 5 | Bernice V. Peterson | 24 | Wife | — | Minnesota |
| 6 | Marlyce Peterson | 4 | Daughter | — | Minnesota |
| 7 | Marilyn Peterson | 0 | Daughter | — | Minnesota |
| 8 | August (X) Pearson | 70 | Head | — | Sweden |
| 9 | Lena Pearson | 62 | Wife | — | Norway |
| 10 | Oscar Peterson | 64 | Head | Janitor | Norway |
| 11 | Agnes Peterson | 63 | Wife | — | Minnesota |
| 12 | Dorothy Peterson | 20 | Daughter | — | Minnesota |
| 13 | Caroline (X) Skoglund | 70 | Head | — | Sweden |
| 14 | Albert C. Paul | 33 | Head | Blade Man | North Dakota |
| 15 | Rose (X) Paul | 29 | Wife | — | North Dakota |
| 16 | Allen Paul | 5 | Son | — | North Dakota |
| 17 | Emma Eliason | 46 | Head | Senior Book Repairer | Sweden |
| 18 | Olive Eliason | 16 | Daughter | — | Minnesota |
| 19 | Evelyn Eliason | 14 | Daughter | — | Minnesota |
| 20 | Alfred C. (X) Swandby | 68 | Head | Clerk Of Court | Norway |
| 21 | Bertha Swandby | 68 | Wife | — | Minnesota |
| 22 | Rose Swandby | 30 | Daughter | Office Clerk | Minnesota |
| 23 | Violet Swandby | 27 | Daughter | — | Minnesota |
| 24 | Hilda (X) Bakke | 70 | Head | — | Illinois |
| 25 | Adolph Bakke | 38 | Son | Prospector | North Dakota |
| 26 | Clayton Bakke | 12 | Grandson | — | Minnesota |
| 27 | Joseph Nyquist | 19 | Lodger | Waiter | Minnesota |
| 28 | Hulda (X) Melbo | 37 | Head | Manager | Minnesota |
| 29 | Phyllis H. Melbo | 18 | Sister | — | Minnesota |
| 30 | Ralph E. Melbo | 31 | Head | — | Minnesota |
| 31 | Walter Hoplin | 39 | Head | Janitor | Minnesota |
| 32 | Eleanor (X) Hoplin | 32 | Wife | — | Minnesota |
| 33 | Norita Hoplin | 5 | Daughter | — | Minnesota |
| 34 | Corrine Hoplin | 0 | Daughter | — | Minnesota |
| 35 | J. Henry Barneck | 30 | Lodger | Art + Mathematics Teacher | Minnesota |
| 36 | Martin Neegaard | 72 | Head | — | Norway |
| 37 | Kristina Neegaard | 59 | Wife | — | Sweden |
| 38 | John Neegaard | 26 | Son | Grave-Digger | Canada-English |
| 39 | Walter Neegaard | 23 | Son | Pinsetter | Minnesota |
| 40 | Myrtle Neegaard | 18 | Daughter | — | Minnesota |
Pedigree Summary
Clarence
Gen 1 · 2 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)