AP
Arthur Peterson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Webster-County, Iowa
Our Model Tree links this Arthur Peterson across the 1920, 1930 and 1940 US Censuses in Webster-County, Iowa (XGBoost, ~Confirmed), with identified parents August & Alma — first a head (b.~1907), then head of a 4-person household.
Age 33
b. ~1907
Male
Head
Born: Iowa
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Webster-County, Iowa |
| Surname | Peterson |
| Given Name | Arthur |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Webster |
| Additional Details | |
| Occupation | Section man |
| Industry | Rail Road |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 1063 |
| Highest Grade | 8 |
| 1935 Residence | Iowa |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Section Man |
| Township / Ward | Douglas |
| Est. Birth Year | ~1907 |
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 Arthur | Age | Birth yr |
|---|---|---|---|---|
| Dick Peterson | Daughter | — | 5 | ~1935 |
| Peggy Peterson | Daughter | — | 8 | ~1932 |
| Arthur Peterson | Head | — | 33 | ~1907 |
| Anna Peterson | Spouse | — | 28 | ~1912 |
Census Appearances
1920
Webster, Iowa
Son, age 14
Webster, Iowa · implied b. ~1906 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Peterson |
| Given Name | Arthur |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Webster, Iowa
Son, age 24
Webster, Iowa · implied b. ~1906 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Peterson |
| Given Name | Arthur |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Laborer |
| Industry | Section |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Webster-County, Iowa
Head, age 33
Webster-County, Iowa · implied b. ~1907 — 4 household members
| Surname | Peterson |
| Given Name | Arthur |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Webster |
| Occupation | Section man |
| Industry | Rail Road |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 1063 |
| Highest Grade | 8 |
| 1935 Residence | Iowa |
| 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 Arthur Peterson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father August Peterson (~0.92 confidence) and mother Alma Peterson (~0.92 confidence) and father August Peterson (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
August Peterson
b. ~1871
Source father
● Household
· direct · ~0.92
Mother
Alma Peterson
b. ~1875
Source mother
● Household
· direct · ~0.92
Father
August Peterson
b. ~1891
Source father
● Household
· direct · ~0.92
This person
Anchor record
Arthur Peterson
Head · 1940 · age 33 · b. ~1907 · 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 — Webster-County, Iowa
Open full size
1940 US Federal Census — Webster-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01212-00212)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Mary Murphy | 65 | Head | — | Iowa |
| 42 | Vincent Murphy | 25 | Son | Farmer | Iowa |
| 43 | George Murphy | 26 | Son | Farmer | Iowa |
| 44 | M. J. Mcmahon | 56 | Head | Farmer | Iowa |
| 45 | Alice L. Mcmahon | 48 | Wife | — | Iowa |
| 46 | Eugene Mcmahon | 22 | Son | Roadworker | Iowa |
| 47 | Helen Mcmahon | 21 | Daughter | Teacher | Iowa |
| 48 | Catherine Mcmahon | 19 | Daughter | Cook | Iowa |
| 49 | Anna Marie Mcmahon | 17 | Daughter | Clerk | Iowa |
| 50 | James Mcmahon | 16 | Son | Farmer | Iowa |
| 51 | Robert Mcmahon | 15 | Son | Farmer | Iowa |
| 52 | Hubert Mcmahon | 14 | Son | Farmer | Iowa |
| 53 | Mortimer Mcmahon | 12 | Son | — | Iowa |
| 54 | Merle Mcmahon | 10 | Son | — | Iowa |
| 55 | Maureen Mcmahon | 7 | Daughter | — | Iowa |
| 56 | John Mcmahon | 5 | Son | — | Iowa |
| 57 | Gladine Mcmahon | 2 | Daughter | — | Iowa |
| 58 | Earl L. Amsden | 45 | Head | Farmer | Iowa |
| 59 | Martha Amsden | 44 | Wife | — | Illinois |
| 60 | George Mcmahon | 43 | Head | Farmer | Iowa |
| 61 | Lillian Mcmahon | 38 | Wife | — | Iowa |
| 62 | Mary Jane Mcmahon | 9 | Daughter | — | Iowa |
| 63 | George Ann Mcmahon | 7 | Daughter | — | Iowa |
| 64 | Frances Celia Mcmahon | 5 | Daughter | — | Iowa |
| 65 | Jack Mcmahon | 3 | Son | — | Iowa |
| 66 | Thomas Mcmahon | 1 | Son | — | Iowa |
| 67 | S. Arthur Banwell | 48 | Head | Farmer | Iowa |
| 68 | Sophia Banwell | 48 | Wife | — | Iowa |
| 69 | Mary Banwell | 14 | Daughter | — | Iowa |
| 70 | Robert Banwell | 12 | Son | — | Iowa |
| 71 | Carol Ann Banwell | 6 | Daughter | — | Iowa |
| 72 | Russell Treble | 36 | Head | Telegraph Operator | Iowa |
| 73 | Milda Treble | 33 | Wife | — | Iowa |
| 74 | Edward S. Reckner | 47 | Head | Farmer | Iowa |
| 75 | Mary E. Reckner | 48 | Wife | — | Iowa |
| 76 | Mary J. Wood | 89 | Mother-in-law | — | Pennsylvania |
| 77 | Arthur Peterson THIS PERSON | 33 | Head | Section Man | Iowa |
| 78 | Anna Peterson | 28 | Wife | — | Missouri |
| 79 | Peggy Irene Peterson | 8 | Daughter | — | Iowa |
| 80 | Dick Jean Peterson | 5 | Daughter | — | Iowa |
Pedigree Summary
Arthur
Gen 1 · 3 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)