AP
Andrew Peterson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Shelby-County, Iowa
Our Model Tree links this Andrew Peterson across the 1920, 1930 and 1940 US Censuses in Shelby-County, Iowa (XGBoost, ~Confirmed) — first a head (b.~1891), then head of a 6-person household.
Age 49
b. ~1891
Male
Head
Born: Iowa
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Shelby-County, Iowa |
| Surname | Peterson |
| Given Name | Andrew |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Cass Township |
| 1935 Residence (County) | Shelby |
| Additional Details | |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 70 |
| Income (1939) | 0 |
| Highest Grade | No |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Farmer |
| Township / Ward | Cass Township |
| Est. Birth Year | ~1891 |
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 Andrew | Age | Birth yr |
|---|---|---|---|---|
| Pauline Peterson | Daughter | — | 22 | ~1918 |
| Andrew Peterson | Head | — | 49 | ~1891 |
| Gene Peterson | Son | — | 19 | ~1921 |
| Bernard Peterson | Son | — | 8 | ~1932 |
| Urban Peterson | Son | — | 15 | ~1925 |
| Anna Peterson | Spouse | — | 46 | ~1894 |
Census Appearances
1920
Shelby, Iowa
Head, age 28
Shelby, Iowa · implied b. ~1892 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Petersen |
| Given Name | Andrew |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Married |
| Birthplace | Iowa |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Denmark |
| Occupation | Farmer |
| Industry | General Farm |
| Class of Worker | OA |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Danish |
| Home Owned/Rented | R |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Shelby, Iowa
Head, age 38
Shelby, Iowa · implied b. ~1892 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Peterson |
| Given Name | Andrew |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 38 |
| Marital Status | Married |
| Birthplace | Iowa |
| Age at First Marriage | 23 |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Denmark |
| Occupation | Farmer |
| Industry | General farm |
| Class of Worker | OA |
| Can Read/Write | No |
| Home Owned/Rented | O |
| Veteran | No |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Shelby-County, Iowa
Head, age 49
Shelby-County, Iowa · implied b. ~1891 — 6 household members
| Surname | Peterson |
| Given Name | Andrew |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Cass Township |
| 1935 Residence (County) | Shelby |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 70 |
| Income (1939) | 0 |
| Highest Grade | No |
| 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 Andrew Peterson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Andrew Peterson
Head · 1940 · age 49 · b. ~1891 · 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 — Shelby-County, Iowa
Open full size
1940 US Federal Census — Shelby-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01204-00021)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Kathleen A Bender | 12 | Daughter | — | Iowa |
| 42 | Pauline H Bender | 10 | Daughter | — | Iowa |
| 43 | Mary Margaret Bender | 8 | Daughter | — | Iowa |
| 44 | Annie Lawrence | 83 | Head | — | Iowa |
| 45 | Thomas Lawrence | 63 | Son | Farmer | Illinois |
| 46 | David Lawrence | 59 | Son | Farmer | Illinois |
| 47 | Lillian Bash | 21 | Hired girl | Housekeeper | Missouri |
| 48 | Ellen Monahan | 79 | Head | — | Illinois |
| 49 | Edward Monahan | 54 | Son | Labor | Illinois |
| 50 | Roy Monahan | 48 | Son | Labor | Illinois |
| 51 | Helen White | 21 | Hired girl | House Work | Illinois |
| 52 | Mary J Pruitt | 59 | Head | — | Iowa |
| 53 | Varnice Pruitt | 26 | Daughter | Operator | Iowa |
| 54 | Nolert F Pruitt | 24 | Son | Laborer Farm | Iowa |
| 55 | Anna R Pruitt | 21 | Daughter | Housekeeper | Iowa |
| 56 | Joseph J Pruitt | 18 | Son | Labor | Iowa |
| 57 | Andrew R Benson | 55 | Head | Farmer | Iowa |
| 58 | Sena Benson | 57 | Sister | — | Iowa |
| 59 | Andrew Peterson THIS PERSON | 49 | Head | Farmer | Iowa |
| 60 | Anna Peterson | 46 | Wife | — | Iowa |
| 61 | Pauline Peterson | 22 | Daughter | Teacher | Iowa |
| 62 | Gene Peterson | 19 | Son | Laborer Farm | Iowa |
| 63 | Urban Peterson | 15 | Son | — | Iowa |
| 64 | Bernard Peterson | 8 | Son | — | Iowa |
| 65 | Albert R Huber | 28 | Head | Farmer | Iowa |
| 66 | Helen M Huber | 21 | Wife | — | Iowa |
| 67 | Robert J Huber | 0 | Son | — | Iowa |
| 68 | Alfred F Shalla | 26 | Boarder | Farmer | Iowa |
| 69 | Andrew M Gau | 37 | Head | Farmer | Iowa |
| 70 | Hazel E Gau | 38 | Wife | — | Iowa |
| 71 | Verna May Gau | 12 | Daughter | — | Iowa |
| 72 | Dorothy J Gau | 10 | Daughter | — | Iowa |
| 73 | Philip E Gau | 8 | Son | — | Iowa |
| 74 | Paul Dean Gau | 5 | Son | — | Iowa |
| 75 | Lois O Gau | 2 | Daughter | — | Iowa |
| 76 | — | None | — | — | — |
| 77 | Henry H Heese | 52 | Head | Farmer | Iowa |
| 78 | Meta B Heese | 51 | Wife | — | Iowa |
| 79 | Elven E Heese | 18 | Son | Labor | Iowa |
| 80 | Elmer G Heese | 14 | Son | — | 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)