WP
William Peterson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Marion-County, Kentucky
Our Model Tree links this William Peterson across the 1920, 1930 and 1940 US Censuses in Marion-County, Kentucky (XGBoost, ~Confirmed), with identified parents Charles & Stephen — first a son (b.~1904), then head of a 6-person household.
Age 36
b. ~1904
Male
Son
Born: Kentucky
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Marion-County, Kentucky |
| Surname | Peterson |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 36 |
| Marital Status | Single |
| Birthplace | Kentucky |
| 1935 Residence (County) | Marion |
| Additional Details | |
| Occupation | Farm |
| Industry | OA |
| Class of Worker | 0 |
| Highest Grade | Hs 4 |
| 1935 Residence | 60 |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
| Occupation | Farm |
| Township / Ward | Magisterial District 6 Raywick |
| Est. Birth Year | ~1904 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Mrs Peterson | Head | — | 71 | ~1869 |
| Subella Peterson | Other | — | 1 | ~1939 |
| Virginia Peterson | Other | — | ~1940 | |
| Annie Peterson | Other | — | 33 | ~1907 |
| William Peterson | Son | — | 36 | ~1904 |
| George Peterson | Son | — | 39 | ~1901 |
Census Appearances
1920
Marion, Kentucky
Son, age 16
Marion, Kentucky · implied b. ~1904 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Peterson |
| Given Name | William H |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Kentucky |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1930
Marion, Kentucky
Son, age 26
Marion, Kentucky · implied b. ~1904 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Peterson |
| Given Name | William H. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Kentucky |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Occupation | Laborer |
| Industry | Farm |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1940
Marion-County, Kentucky
Son, age 36
Marion-County, Kentucky · implied b. ~1904 — 6 household members
| Surname | Peterson |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 36 |
| Marital Status | Single |
| Birthplace | Kentucky |
| 1935 Residence (County) | Marion |
| Occupation | Farm |
| Industry | OA |
| Class of Worker | 0 |
| Highest Grade | Hs 4 |
| 1935 Residence | 60 |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
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 William Peterson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Charles Peterson (~0.92 confidence) and father Stephen Peterson (~0.92 confidence) and mother Mrs Peterson (~0.92 confidence) and mother Susana Peterson (~0.92 confidence) and mother Mattie Peterson (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Charles Peterson
b. ~1869
Source father
● Household
· direct · ~0.92
Father
Stephen Peterson
b. ~1869
Source father
● Household
· direct · ~0.92
Mother
Mrs Peterson
b. ~1869
Source mother
● Household
· direct · ~0.92
Mother
Susana Peterson
b. ~1869
Source mother
● Household
· direct · ~0.92
Mother
Mattie Peterson
b. ~1878
Source mother
● Household
· direct · ~0.92
This person
Anchor record
William Peterson
Son · 1940 · age 36 · b. ~1904 · Kentucky
★ You are viewing this record
Sibling
George Peterson
Sibling · 1940 · age 39
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 — Marion-County, Kentucky
Open full size
1940 US Federal Census — Marion-County, Kentucky
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01338-00338)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Elvy Lucas | 1 | Son | — | Kentucky |
| 2 | Alonzo Allen | 53 | Head | Own Farm | Kentucky |
| 3 | Joe Farris | 56 | Head | Own Farm | Kentucky |
| 4 | Iora Farris | 54 | Wife | — | Kentucky |
| 5 | Mary Farris | 27 | Daughter | County School | Kentucky |
| 6 | Willard Farris | 22 | Son | County School | Kentucky |
| 7 | Rufus Price | 31 | Head | Operator | Kentucky |
| 8 | Mae Price | 23 | Wife | — | Kentucky |
| 9 | Imogene Price | 1 | Daughter | — | Kentucky |
| 10 | Lois Imogene Scoffey | 5 | Daughter | — | Kentucky |
| 11 | Charles B. Shelton | 72 | Head | Own Farm | Kentucky |
| 12 | Lizzie Shelton | 62 | Wife | — | Kentucky |
| 13 | Melba Shelton | 23 | Son | Farm | Kentucky |
| 14 | Gid Shelton | 21 | Son | Farm | Kentucky |
| 15 | Mattie Hayes | 67 | Mother-in-law | — | Kentucky |
| 16 | Lloyd Burress | 32 | Head | Own Farm | Kentucky |
| 17 | Lorena W. Burress | 28 | Wife | — | Kentucky |
| 18 | Ralph Burress | 5 | Son | — | Kentucky |
| 19 | Joel Lambin | 52 | Head | Own Farm | Kentucky |
| 20 | Mattie Lambin | 56 | Wife | — | Kentucky |
| 21 | Milan Lambin | 25 | Son | Farm | Kentucky |
| 22 | Anna Mary Lambin | 14 | Daughter | — | Illinois |
| 23 | Bernadine Lambin | 12 | Daughter | — | Illinois |
| 24 | Lloyd Leake | 67 | Head | Own Farm | Kentucky |
| 25 | Alice Leake | 63 | Wife | — | Kentucky |
| 26 | Albert Leake | 40 | Son | Own Farm | Kentucky |
| 27 | Florie Leake | 37 | Son | Farm | Kentucky |
| 28 | Jack Leake | 25 | Son | Farm | Kentucky |
| 29 | Richard Leake | 22 | Son | Voice | Kentucky |
| 30 | Sam Leake | 19 | Son | Farm | Kentucky |
| 31 | Mrs. Sudie Peterson | 71 | Head | — | Kentucky |
| 32 | George Peterson | 39 | Son | Farm | Kentucky |
| 33 | William Peterson THIS PERSON | 36 | Son | Farm | Kentucky |
| 34 | Annie Peterson | 33 | Daughter-in-law | — | Kentucky |
| 35 | Subella Peterson | 1 | Granddaughter | — | Kentucky |
| 36 | Virginia Ann Peterson | 0 | Granddaughter | — | Kentucky |
| 37 | Felix Mattingly | 42 | Head | Own Farm | Kentucky |
| 38 | Daisy Mattingly | 31 | Wife | — | Kentucky |
| 39 | Lillie Mae Mattingly | 11 | Daughter | — | Kentucky |
| 40 | Mary Alice Mattingly | 9 | Daughter | — | Kentucky |
Pedigree Summary
William + 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)