DP
Donald Peterson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Marshall-County, Iowa
Our Model Tree links this Donald Peterson across the 1930 and 1940 US Censuses in Marshall-County, Iowa (XGBoost, ~Confirmed) — first a son (b.~1924), then head of a 8-person household.
Age 16
b. ~1924
Male
Son
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Marshall-County, Iowa |
| Surname | Peterson |
| Given Name | Donald |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Marshalltown |
| 1935 Residence (County) | Marshall |
| Additional Details | |
| Highest Grade | H 2 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Marshalltown |
| Est. Birth Year | ~1924 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Donald | Age | Birth yr |
|---|---|---|---|---|
| Merine Peterson | Daughter | — | 24 | ~1916 |
| Clarence Peterson | Head | — | 43 | ~1897 |
| Treva Peterson | Daughter | — | 5 | ~1935 |
| Donald Peterson | Son | — | 16 | ~1924 |
| Theodore Peterson | Son | — | 9 | ~1931 |
| Maye Peterson | Spouse | — | 41 | ~1899 |
| Charlotte Peterson | Daughter | — | 11 | ~1929 |
| Mildred Peterson | Daughter | — | 20 | ~1920 |
Census Appearances
1930
Marshall, Iowa
Son, age 6
Marshall, Iowa · implied b. ~1924 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Peterson |
| Given Name | Donald |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Occupation | none |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Marshall-County, Iowa
Son, age 16
Marshall-County, Iowa · implied b. ~1924 — 8 household members
| Surname | Peterson |
| Given Name | Donald |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Marshalltown |
| 1935 Residence (County) | Marshall |
| Highest Grade | H 2 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
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 Donald Peterson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Donald Peterson
Son · 1940 · age 16 · b. ~1924 · Iowa
★ You are viewing this record
Sibling
Theodore Peterson
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charlotte Peterson
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Treva Peterson
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Merine Peterson
Sibling · 1940 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mildred 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 — Marshall-County, Iowa
Open full size
1940 US Federal Census — Marshall-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01182-00721)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Jerry Coynes | 52 | Head | Trucker | Minnesota |
| 2 | Helen Coynes | 42 | Wife | — | Minnesota |
| 3 | Ivan Mcfarland | 22 | Roomer | Trucker | Iowa |
| 4 | Irene Mcfarland | 18 | Roomer | — | Iowa |
| 5 | Floyd Mcfarland | 51 | Roomer | Trucker | Iowa |
| 6 | Edward Youngworth | 30 | Roomer | Bookkeeper | Iowa |
| 7 | Ione Youngworth | 20 | Roomer | Clerk | Iowa |
| 8 | Alice Mcfarland | 43 | Roomer | — | Iowa |
| 9 | June Mcfarland | 26 | Roomer | Trucker | Iowa |
| 10 | Margaret Mcfarland | 24 | Roomer | — | Missouri |
| 11 | Bud Mcfarland | 7 | Roomer | — | Iowa |
| 12 | Beverly Mcfarland | 4 | Roomer | — | Iowa |
| 13 | Jay Leisetter | 31 | Head | Mechanist | Iowa |
| 14 | Iloise Leisetter | 32 | Wife | — | Iowa |
| 15 | Leon Leisetter | 7 | Son | — | Iowa |
| 16 | Janice Leisetter | 2 | Daughter | — | Iowa |
| 17 | Edward Geyer | 26 | Head | Meat Cutter | Iowa |
| 18 | Alice Geyer | 19 | Wife | — | Iowa |
| 19 | Lloyd Watson | 45 | Head | Trucker | Iowa |
| 20 | Alice Watson | 37 | Wife | — | Iowa |
| 21 | Kenneth Mckitrick | 35 | Roomer | Caseer | Iowa |
| 22 | Samuel Isenberg | 35 | Head | Owner | Russia |
| 23 | Ruth Isenberg | 35 | Wife | — | Russia |
| 24 | Aaron Kaufman | 85 | Father-in-law | — | Russia |
| 25 | Delmer Lane | 32 | Head | Trucker | Iowa |
| 26 | Rachel Lane | 35 | Wife | Piano Teacher | Iowa |
| 27 | Clarence Peterson | 43 | Head | Foreman | Iowa |
| 28 | Maye Peterson | 41 | Wife | — | Iowa |
| 29 | Merine Peterson | 24 | Daughter | Packer | Iowa |
| 30 | Mildred Peterson | 20 | Daughter | Packer | Iowa |
| 31 | Donald Peterson THIS PERSON | 16 | Son | — | Iowa |
| 32 | Charlotte Peterson | 11 | Daughter | — | Iowa |
| 33 | Theodore Peterson | 9 | Son | — | Iowa |
| 34 | Treva Peterson | 5 | Daughter | — | Iowa |
| 35 | Fred Turner | 33 | Head | Bookkeeper | Iowa |
| 36 | Joyce Turner | 12 | Daughter | — | Iowa |
| 37 | Joanne Turner | 10 | Daughter | — | Iowa |
| 38 | Lucille Wilson | 58 | Roomer | — | Missouri |
| 39 | Harry Vatrow | 63 | Roomer | Brake-Man | Minnesota |
| 40 | James Quigley | 58 | Roomer | Laborer | Iowa |
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)