CP
Carl Peterson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Scott-County, Iowa
Our Model Tree links this Carl Peterson across the 1920, 1930 and 1940 US Censuses in Scott-County, Iowa (XGBoost, ~Confirmed) — first a head (b.~1872), then head of a 6-person household.
Age 68
b. ~1872
Male
Head
Born: Sweden
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Scott-County, Iowa |
| Surname | Peterson |
| Given Name | Carl W |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 68 |
| Marital Status | Married |
| Birthplace | Sweden |
| 1935 Residence (City) | Davenport City |
| 1935 Residence (County) | Scott |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Harnessmaker |
| Industry | Harness shop |
| Class of Worker | OA |
| Hours Worked | 18 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth Country | Sweden |
| Birthplace (normalized) | sweden |
| Occupation | Harnessmaker |
| Township / Ward | Davenport City |
| Est. Birth Year | ~1872 |
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 Carl | Age | Birth yr |
|---|---|---|---|---|
| Grace Harvey | Daughter | — | 38 | ~1902 |
| Marie Peterson | Daughter | — | 26 | ~1914 |
| Helena Peterson | Daughter | — | 32 | ~1908 |
| Carl Peterson | Head | — | 68 | ~1872 |
| Gower Harvey | Other | — | 8 | ~1932 |
| Hulda Peterson | Spouse | — | 66 | ~1874 |
Census Appearances
1920
Scott, Iowa
Head, age 47
Scott, Iowa · implied b. ~1873 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Peterson |
| Given Name | Carl W |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 47 |
| Marital Status | Married |
| Birthplace | Sweden |
| Year of Immigration | 1892 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Nursery Man |
| Industry | Nurseryman |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Swedish |
| Home Owned/Rented | O |
| Home Free/Mortgaged | M |
| Birth Country | Sweden |
| Birthplace (normalized) | sweden |
1930
Scott, Iowa
Head, age 57
Scott, Iowa · implied b. ~1873 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Peterson |
| Given Name | Carl W. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 57 |
| Marital Status | Married |
| Birthplace | Sweden |
| Naturalization Status | Naturalized |
| Year of Immigration | 1892 |
| Age at First Marriage | 24 |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | shoe repairer |
| Industry | dry goods |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | Swedish |
| Home Owned/Rented | O |
| Home Value / Rent | 10000 |
| Radio Set | R |
| Veteran | No |
| Birth Country | Sweden |
| Birthplace (normalized) | sweden |
1940
Scott-County, Iowa
Head, age 68
Scott-County, Iowa · implied b. ~1872 — 6 household members
| Surname | Peterson |
| Given Name | Carl W |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 68 |
| Marital Status | Married |
| Birthplace | Sweden |
| 1935 Residence (City) | Davenport City |
| 1935 Residence (County) | Scott |
| Naturalization Status | Naturalized |
| Occupation | Harnessmaker |
| Industry | Harness shop |
| Class of Worker | OA |
| Hours Worked | 18 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth Country | Sweden |
| Birthplace (normalized) | sweden |
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 Carl Peterson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Carl Peterson
Head · 1940 · age 68 · b. ~1872 · Iowa
★ 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 — Scott-County, Iowa
Open full size
1940 US Federal Census — Scott-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01203-00871)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Otto A Mueller | 50 | Head | Attendant | Germany |
| 2 | Hazel Mueller | 47 | Wife | — | Iowa |
| 3 | Louis Lucille Mueller | 19 | Daughter | Waitress | Iowa |
| 4 | Carl W Peterson THIS PERSON | 68 | Head | Harnessmaker | Sweden |
| 5 | Hulda Peterson | 66 | Wife | — | Sweden |
| 6 | Helena Peterson | 32 | Daughter | Bookkeeper | Iowa |
| 7 | Marie Peterson | 26 | Daughter | Stenographer | Iowa |
| 8 | Grace Harvey | 38 | Daughter | Bookkeeper | Iowa |
| 9 | Gower Harvey | 8 | Grandson | — | Iowa |
| 10 | Harlan H Schuwat | 30 | Head | Civil Engineer | Iowa |
| 11 | Mary Schuwat | 29 | Wife | — | Iowa |
| 12 | Dorothy Schuwat | 4 | Daughter | — | Iowa |
| 13 | Sally Schuwat | 0 | Daughter | — | Iowa |
| 14 | Ana Fugent | 49 | Mother-in-law | — | Iowa |
| 15 | Thomas B Thompson | 37 | Head | Assembler | Illinois |
| 16 | Marie Thompson | 35 | Wife | — | Iowa |
| 17 | George Thompson | 13 | Son | — | Iowa |
| 18 | Thomas P Thompson | 12 | Son | — | Iowa |
| 19 | Rose A Trey | 70 | Roomer | Nurse | Iowa |
| 20 | Ends Reore | None | Block | — | — |
| 21 | Ann Schmalhaus | 49 | Head | Milliner | Canada |
| 22 | Charles H Turner | 54 | Head | Janitor | Iowa |
| 23 | Olive Turner | 46 | Wife | Butchers Help | Iowa |
| 24 | Harold Turner | 25 | Son | Janitor | Missouri |
| 25 | Charles E Westerlo | 64 | Head | Salesman | England |
| 26 | Mary Westerlo | 20 | Daughter | Stenographer | Michigan |
| 27 | Margaret Hassett | 40 | Head | — | Iowa |
| 28 | Elliot Van Epps | 32 | Head | Salesman | Iowa |
| 29 | Edna Van Epps | 30 | Wife | Seamstress | Iowa |
| 30 | Phyllis Van Epps | 10 | Daughter | — | Iowa |
| 31 | Wm W Winters | 35 | Head | — | Iowa |
| 32 | Marie Winters | 32 | Wife | Operator | Iowa |
| 33 | Harvey Winters | 9 | Son | — | Iowa |
| 34 | Mary Meade | 50 | Head | Operator | New York |
| 35 | William Czekler | 23 | Roomer | Bakery | Iowa |
| 36 | In Count Error | None | — | — | — |
| 37 | In Count Error | None | — | — | — |
| 38 | In Count Error | None | — | — | — |
| 39 | Harold E Wilson | 58 | Head | Floor Walker | Missouri |
| 40 | Sylvia Wilson | 54 | Wife | — | 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)