CP
Clarence Peterson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Pierce-County, Washington
Our Model Tree links this Clarence Peterson across the 1920, 1930 and 1940 US Censuses in Pierce-County, Washington (XGBoost, ~Confirmed), with identified parents C & Peter — first a head (b.~1911), then head of a 4-person household.
Age 29
b. ~1911
Male
Head
Born: Oregon
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Pierce-County, Washington |
| Surname | Peterson |
| Given Name | Clarence E. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Married |
| Birthplace | Oregon |
| 1935 Residence (City) | Tacoma |
| 1935 Residence (County) | Pierce |
| Additional Details | |
| Occupation | Parts Man |
| Industry | Auto Shop |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 1570 |
| Highest Grade | Hs 3 |
| 1935 Residence | Same place |
| Birth State | Oregon |
| Birth Country | United States |
| Birthplace (normalized) | oregon |
| Occupation | Parts Man |
| Township / Ward | Tacoma |
| Est. Birth Year | ~1911 |
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 |
|---|---|---|---|---|
| Della Peterson | Spouse | — | 28 | ~1912 |
| Clarence Peterson | Head | — | 29 | ~1911 |
| Delman Peterson | Son | — | 1 | ~1939 |
| Ronald Peterson | Son | — | 3 | ~1937 |
Census Appearances
1920
Pierce, Washington
Son, age 9
Pierce, Washington · implied b. ~1911 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Peterson |
| Given Name | Clarence E |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Oregon |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Norway |
| Speaks English | Yes |
| Birth State | Oregon |
| Birth Country | United States |
| Birthplace (normalized) | oregon |
1930
Pierce, Washington
Son, age 19
Pierce, Washington · implied b. ~1911 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Peterson |
| Given Name | Clarence E |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Oregon |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Helper |
| Industry | Service station |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Oregon |
| Birth Country | United States |
| Birthplace (normalized) | oregon |
1940
Pierce-County, Washington
Head, age 29
Pierce-County, Washington · implied b. ~1911 — 4 household members
| Surname | Peterson |
| Given Name | Clarence E. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Married |
| Birthplace | Oregon |
| 1935 Residence (City) | Tacoma |
| 1935 Residence (County) | Pierce |
| Occupation | Parts Man |
| Industry | Auto Shop |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 1570 |
| Highest Grade | Hs 3 |
| 1935 Residence | Same place |
| Birth State | Oregon |
| Birth Country | United States |
| Birthplace (normalized) | oregon |
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 C Peterson (~0.92 confidence) and father Peter Peterson (~0.92 confidence) and mother Inga Peterson (~0.92 confidence) and mother Inga Peterson (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
C Peterson
b. ~1875
Source father
● Household
· direct · ~0.92
Father
Peter Peterson
b. ~1875
Source father
● Household
· direct · ~0.92
Mother
Inga Peterson
b. ~1878
Source mother
● Household
· direct · ~0.92
Mother
Inga Peterson
b. ~1878
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Clarence Peterson
Head · 1940 · age 29 · b. ~1911 · Washington
★ 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 — Pierce-County, Washington
Open full size
1940 US Federal Census — Pierce-County, Washington
Page Contents
38 people indexed on this census page (nara:1940:m-t0627-04390-00455)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Lena Mitchell | 57 | Wife | — | Ohio |
| 2 | Robert E. Sharpe | 27 | Head | Glass Blower | Washington |
| 3 | Nadine Sharpe | 25 | Wife | — | Washington |
| 4 | Roger E. Sharpe | 4 | Son | — | Washington |
| 5 | Ray O. Sharpe | 2 | Son | — | Washington |
| 6 | Stanley H. Craig | 69 | Head | Gardener | New Jersey |
| 7 | Dora E. Craig | 61 | Wife | — | Washington |
| 8 | Letzer, Ida M. Craig | 59 | In-law | — | Washington |
| 9 | Theodore Ramsdell | 35 | Head | Door Driver | Minnesota |
| 10 | Alerta Ramsdell | 60 | Mother | — | Iowa |
| 11 | Carl E. Anderson | 52 | Head | Car Repairer | Sweden |
| 12 | Minnie Anderson | 42 | Wife | — | Washington |
| 13 | Sydney Marshall | 65 | Head | — | Wisconsin |
| 14 | Frances Marshall | 59 | Wife | — | Wisconsin |
| 16 | Harry N. Jorgensen | 31 | Head | Office Clerk | Washington |
| 17 | Verna Jorgensen | 30 | Wife | — | Washington |
| 18 | Lynne M. Jorgensen | 2 | Daughter | — | Washington |
| 19 | Alice Jacobson | 37 | Head | — | England |
| 20 | Anna L. Jacobson | 19 | Daughter | Feed Wrapper | Washington |
| 21 | Mary E. Jacobson | 13 | Daughter | — | Washington |
| 22 | Melvin A. Jacobson | 10 | Son | — | Washington |
| 23 | Clarence E. Peterson THIS PERSON | 29 | Head | Parts Man | Oregon |
| 24 | Della M. Peterson | 28 | Wife | — | California |
| 25 | Ronald C. Peterson | 3 | Son | — | Washington |
| 26 | Delman L. Peterson | 1 | Son | — | Washington |
| 27 | Arthur Strong | 34 | Head | Fireman | Missouri |
| 28 | Cora L. Strong | 31 | Wife | — | Washington |
| 29 | Nancy Strong | 9 | Daughter | — | Washington |
| 30 | John Strong | 6 | Son | — | Washington |
| 31 | Mary Strong | 4 | Daughter | — | Washington |
| 32 | Harold Strong | 2 | Son | — | Washington |
| 33 | George Sabol | 37 | Head | Car Repair Helper | Montana |
| 34 | Mary Sabol | 37 | Wife | — | Washington |
| 35 | Loren L. Whitney | 38 | Head | Stationary Engineer | Oregon |
| 36 | Frances Whitney | 31 | Wife | — | Washington |
| 37 | Theresa Whitney | 12 | Daughter | — | Washington |
| 38 | Pauline Whitney | 11 | Daughter | — | Washington |
| 39 | Frank Whitney | 1 | Son | — | Washington |
Pedigree Summary
Clarence
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)