OP
Oscar Peterson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Jerome-County, Idaho
Our Model Tree links this Oscar Peterson across the 1920, 1930 and 1940 US Censuses in Jerome-County, Idaho (XGBoost, ~Confirmed), with identified parents O & Oscar — first a son (b.~1919), then head of a 4-person household.
Age 21
b. ~1919
Male
Son
Born: Idaho
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Jerome-County, Idaho |
| Surname | Peterson |
| Given Name | Oscar P Jr |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Idaho |
| 1935 Residence (City) | Jerome city |
| 1935 Residence (County) | Jerome |
| Additional Details | |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Idaho |
| Birth Country | United States |
| Birthplace (normalized) | idaho |
| Township / Ward | Jerome City |
| Est. Birth Year | ~1919 |
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 Oscar | Age | Birth yr |
|---|---|---|---|---|
| Oscar Peterson | Head | — | 60 | ~1880 |
| Oscar Peterson | Son | — | 21 | ~1919 |
| John Peterson | Son | — | 20 | ~1920 |
| Hazel Peterson | Spouse | — | 50 | ~1890 |
Census Appearances
1920
Jerome, Idaho
Son, age 1
Jerome, Idaho · implied b. ~1919 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Peterson |
| Given Name | Oscar R. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Idaho |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Michigan |
| Birth State | Idaho |
| Birth Country | United States |
| Birthplace (normalized) | idaho |
1930
Jerome, Idaho
Son, age 11
Jerome, Idaho · implied b. ~1919 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Peterson |
| Given Name | Oscar R. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Idaho |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Pennsylvania |
| Can Read/Write | Yes |
| Birth State | Idaho |
| Birth Country | United States |
| Birthplace (normalized) | idaho |
1940
Jerome-County, Idaho
Son, age 21
Jerome-County, Idaho · implied b. ~1919 — 4 household members
| Surname | Peterson |
| Given Name | Oscar P Jr |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Idaho |
| 1935 Residence (City) | Jerome city |
| 1935 Residence (County) | Jerome |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Idaho |
| Birth Country | United States |
| Birthplace (normalized) | idaho |
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 Oscar Peterson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father O Peterson (~0.92 confidence) and father Oscar Peterson (~0.92 confidence) and mother Eleanor Peterson (~0.92 confidence) and mother Hazel Peterson (~0.92 confidence) and mother Sarah Peterson (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
O Peterson
b. ~1870
Source father
● Household
· direct · ~0.92
Father
Oscar Peterson
b. ~1880
Source father
● Household
· direct · ~0.92
Mother
Eleanor Peterson
b. ~1890
Source mother
● Household
· direct · ~0.92
Mother
Hazel Peterson
b. ~1890
Source mother
● Household
· direct · ~0.92
Mother
Sarah Peterson
b. ~1891
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Oscar Peterson
Son · 1940 · age 21 · b. ~1919 · Idaho
★ You are viewing this record
Sibling
John Peterson
Sibling · 1940 · age 20
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 — Jerome-County, Idaho
Open full size
1940 US Federal Census — Jerome-County, Idaho
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00747-00941)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Earl A Mcguire | 49 | Head | Labor | Nebraska |
| 2 | Gail H Mcguire | 21 | Son | — | Idaho |
| 3 | Grant W Mcguire | 20 | Son | — | Colorado |
| 4 | George L Gaucher | 69 | Head | — | Illinois |
| 5 | Elsie M Gaucher | 67 | Wife | — | Iowa |
| 6 | Barbara Mclagan | 25 | Lodger | Teacher | Idaho |
| 7 | Florence Rooker | 24 | Lodger | Teacher | Idaho |
| 8 | Charles F Dent | 47 | Head | Telephone Lineman | Kansas |
| 9 | Helen Dent | 47 | Wife | — | Missouri |
| 10 | Geo V Dent | 17 | Son | — | Idaho |
| 11 | Agnes Dent | 12 | Daughter | — | Idaho |
| 12 | Frances Dent | 6 | Son | — | Idaho |
| 13 | Wayne Griffith | 30 | Head | Plumber | Idaho |
| 14 | Ray Griffith | 23 | Wife | — | Oklahoma |
| 15 | Walden Griffith | 2 | Son | — | Idaho |
| 16 | Fred C Reed | 48 | Head | Auto Dealer | Texas |
| 17 | Frances Reed | 42 | Wife | — | Texas |
| 18 | Cole Reed | 17 | Son | — | Idaho |
| 19 | Ralph Benedick | 51 | Lodger | News Boy | Nebraska |
| 20 | Ruth Bell | 20 | Lodger | Salesman | — |
| 21 | Summurt Darr | 49 | Head | Jeweler | Nebraska |
| 22 | Edna Darr | 50 | Wife | — | Wisconsin |
| 23 | Rex Darr | 21 | Son | Salesman | Idaho |
| 24 | Edward Stine | 70 | Father-in-law | — | — |
| 25 | Earl F Kennedy | 52 | Head | Treasurer | Nebraska |
| 26 | Helen E Kennedy | 49 | Wife | — | Nebraska |
| 27 | Albert Woodhead | 48 | Head | Manager | Wyoming |
| 28 | Clara Woodhead | 38 | Wife | — | Colorado |
| 29 | Richard Woodhead | 17 | Son | — | Idaho |
| 30 | Robert Woodhead | 15 | Son | — | Idaho |
| 31 | William B Verschuren | 40 | Head | Salesman | Indiana |
| 32 | Frances G Verschuren | 39 | Wife | — | Idaho |
| 33 | William Jr Verschuren | 12 | Son | — | Idaho |
| 34 | Joan C Verschuren | 10 | Daughter | — | Idaho |
| 35 | Edward T Verschuren | 3 | Son | — | Idaho |
| 36 | Mae C Lucey | 64 | Mother-in-law | Merchant | Indiana |
| 37 | Oscar P Peterson | 60 | Head | — | Sweden |
| 38 | Hazel E Peterson | 50 | Wife | — | Idaho |
| 39 | Oscar P Jr Peterson THIS PERSON | 21 | Son | — | Idaho |
| 40 | John W Peterson | 20 | Son | — | Idaho |
Related Census Records
Pedigree Summary
Oscar + 1 sibling
Gen 1 · 5 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)