DP
Dorothy Peterson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Woodbury-County, Iowa
Our Model Tree links this Dorothy Peterson across the 1930 and 1940 US Censuses in Woodbury-County, Iowa (XGBoost, ~Confirmed) — first a daughter (b.~1930), then head of a 10-person household.
Age 10
b. ~1930
Female
Daughter
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Woodbury-County, Iowa |
| Surname | Peterson |
| Given Name | Dorothy |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Sioux City |
| 1935 Residence (County) | Woodbury |
| Additional Details | |
| Highest Grade | No 5 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Sioux City |
| Est. Birth Year | ~1930 |
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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Dorothy | Age | Birth yr |
|---|---|---|---|---|
| Johanna Peterson | Spouse | — | 33 | ~1907 |
| Robert Peterson | Son | — | 15 | ~1925 |
| Mary Peterson | Daughter | — | 2 | ~1938 |
| Dorothy Peterson | Daughter | — | 10 | ~1930 |
| Edward Peterson | Son | — | 12 | ~1928 |
| Jimmy Peterson | Son | — | 13 | ~1927 |
| Hans Peterson | Head | — | 43 | ~1897 |
| Lois Peterson | Daughter | — | 5 | ~1935 |
| Ronald Peterson | Son | — | 7 | ~1933 |
| Lorraine Peterson | Daughter | — | 11 | ~1929 |
Census Appearances
1930
Woodbury, Iowa
Daughter, age
Woodbury, Iowa · implied b. ~1930 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Petersen |
| Given Name | Dorothy J. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Denmark |
| Mother's Birthplace | South Dakota |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Woodbury-County, Iowa
Daughter, age 10
Woodbury-County, Iowa · implied b. ~1930 — 10 household members
| Surname | Peterson |
| Given Name | Dorothy |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Sioux City |
| 1935 Residence (County) | Woodbury |
| Highest Grade | No 5 |
| 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 Dorothy Peterson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Dorothy Peterson
Daughter · 1940 · age 10 · b. ~1930 · Iowa
★ You are viewing this record
Sibling
Edward Peterson
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jimmy Peterson
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Peterson
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Peterson
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lorraine Peterson
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lois Peterson
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ronald Peterson
Sibling · 1940 · age 7
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 — Woodbury-County, Iowa
Open full size
1940 US Federal Census — Woodbury-County, Iowa
Page Contents
38 people indexed on this census page (nara:1940:m-t0627-01215-00679)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Hans Peterson | 43 | Head | Butter Maker | Denmark |
| 2 | Johanna Peterson | 33 | Wife | — | South Dakota |
| 3 | Robert Peterson | 15 | Son | — | Iowa |
| 4 | Jimmy Peterson | 13 | Son | — | Iowa |
| 5 | Lorraine Peterson | 11 | Daughter | — | Canada Eng |
| 6 | Dorothy Peterson THIS PERSON | 10 | Daughter | — | Iowa |
| 7 | Ronald Peterson | 7 | Son | — | Iowa |
| 8 | Lois Anne Peterson | 5 | Daughter | — | Iowa |
| 9 | Mary Ellen Peterson | 2 | Daughter | — | Iowa |
| 10 | Edward Peterson | 12 | Son | — | Iowa |
| 11 | Willard Stevens | 24 | Head | Baker | North Dakota |
| 12 | Anne Stevens | 24 | Wife | Baker | Nebraska |
| 13 | Stanley Margis | 14 | Brother-in-law | — | Iowa |
| 15 | Fred Jenkins | 62 | Head | — | Illinois |
| 16 | Marie Jenkins | 52 | Wife | Sales-Lady | Iowa |
| 17 | Roy Millage | 37 | Head | Stationary Engineer | Kansas |
| 18 | Hilda Millage | 31 | Wife | — | Iowa |
| 19 | William Kroll | 65 | Head | Sales-Man | Germany |
| 20 | Ingval Isaacson | 42 | Head | Laborer | Iowa |
| 21 | Elsie Isaacson | 40 | Wife | — | South Dakota |
| 22 | Fern Isaacson | 10 | Daughter | — | Canada Eng |
| 23 | Arthur White | 32 | Head | Meat Smoker | Iowa |
| 24 | Vera White | 28 | Wife | — | Arkansas |
| 25 | Eugene White | 3 | Son | — | Iowa |
| 26 | C. D. Studley | 63 | Head | Line Man | Illinois |
| 27 | Bertha Studley | 56 | Wife | — | Illinois |
| 28 | Teddy Studley | 8 | Grand-son | — | Iowa |
| 29 | Maly Studley | 2 | Grand-daughter | — | Iowa |
| 30 | Deforest Ransom | 48 | Head | Fire Man | Illinois |
| 31 | Laura Ransom | 46 | Wife | — | Illinois |
| 32 | Ida Benis | 75 | Mother-in-law | — | Illinois |
| 33 | Hans Kuklentz | 45 | Head | Baker | Iowa |
| 34 | Winifred Kuklentz | 40 | Wife | — | England |
| 35 | Darlene Kuklentz | 4 | Daughter | — | Iowa |
| 37 | Ira Leo Cook | 55 | Head | Labour | Illinois |
| 38 | Anna Jane Cook | 55 | Wife | — | Iowa |
| 39 | Edward Cornell | 30 | Head | General Office Worker | Nebraska |
| 40 | Eleanore Cornell | 24 | Wife | Trimmer | 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)