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John Schroeder — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Pottawattamie-County, Iowa
Our Model Tree links this John Schroeder across the 1920, 1930 and 1940 US Censuses in Pottawattamie-County, Iowa (XGBoost, ~Confirmed) — first a head (b.~1880), then head of a 3-person household.
Age 60
b. ~1880
Male
Head
Born: Germany
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Pottawattamie-County, Iowa |
| Surname | Schroeder |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 60 |
| Marital Status | Married |
| Birthplace | Germany |
| 1935 Residence (City) | Hardin twp. |
| 1935 Residence (County) | Pottawattamie |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | farming |
| Class of Worker | OA |
| Hours Worked | 70 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth Country | Germany |
| Birthplace (normalized) | germany |
| Occupation | Farming |
| Township / Ward | Hardin Twp |
| Est. Birth Year | ~1880 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| John Schroeder | Head | — | 60 | ~1880 |
| Harvey Schroeder | Son | — | 21 | ~1919 |
| Mary Schroeder | Spouse | — | 55 | ~1885 |
Census Appearances
1920
Pottawattamie, Iowa
Head, age 40
Pottawattamie, Iowa · implied b. ~1880 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Schroeder |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Germany |
| Year of Immigration | 1890 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Occupation | Farmer |
| Industry | General Farm |
| Class of Worker | OA |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | German |
| Home Owned/Rented | O |
| Home Free/Mortgaged | F |
| Birth Country | Germany |
| Year of Naturalization | 1907 |
| Birthplace (normalized) | germany |
1930
Pottawattamie, Iowa
Head, age 52
Pottawattamie, Iowa · implied b. ~1878 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Schroeder |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 52 |
| Marital Status | Married |
| Birthplace | Germany |
| Naturalization Status | Naturalized |
| Year of Immigration | 1890 |
| Age at First Marriage | 27 |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Occupation | Farmer |
| Industry | General Farming |
| Class of Worker | OA |
| Can Read/Write | Yes |
| Mother Tongue | German |
| Home Owned/Rented | O |
| Radio Set | R |
| Veteran | No |
| Birth Country | Germany |
| Birthplace (normalized) | germany |
1940
Pottawattamie-County, Iowa
Head, age 60
Pottawattamie-County, Iowa · implied b. ~1880 — 3 household members
| Surname | Schroeder |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 60 |
| Marital Status | Married |
| Birthplace | Germany |
| 1935 Residence (City) | Hardin twp. |
| 1935 Residence (County) | Pottawattamie |
| Naturalization Status | Naturalized |
| Occupation | farming |
| Class of Worker | OA |
| Hours Worked | 70 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth Country | Germany |
| Birthplace (normalized) | germany |
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 John Schroeder across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
John Schroeder
Head · 1940 · age 60 · b. ~1880 · Iowa
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Pottawattamie-County, Iowa
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1940 US Federal Census — Pottawattamie-County, Iowa
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-01198-00205)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Bruce J. Chambers | 46 | Head | Farm Manager | Iowa |
| 2 | Mabel J. Chambers | 46 | Wife | — | Iowa |
| 3 | Warren B. Chambers | 17 | Son | — | Iowa |
| 4 | Ray Kenneth Chambers | 12 | Son | — | Iowa |
| 5 | Robert Chambers | 10 | Son | — | Iowa |
| 6 | Marilyn Chambers | 7 | Daughter | — | Iowa |
| 7 | Ronald Chambers | 3 | Son | — | Iowa |
| 8 | Raymond H. Kerber | 44 | Head | Farm Manager | Iowa |
| 9 | Myrtle Kerber | 43 | Wife | — | Iowa |
| 10 | Donald Kerber | 17 | Son | — | Iowa |
| 11 | John Schroeder THIS PERSON | 60 | Head | Farming | Germany |
| 12 | Mary Schroeder | 55 | Wife | — | Germany |
| 13 | Harvey Schroeder | 21 | Son | Student | Iowa |
| 14 | Detlef Stange | 31 | Head | Farmer | Iowa |
| 15 | Ardith A. Stange | 30 | Wife | — | Iowa |
| 16 | Donald Trede | 19 | Hired hand | Farm Hand | Iowa |
| 17 | John D. Stange | 69 | Head | — | Germany |
| 18 | Dora A. Stange | 61 | Wife | — | Germany |
| 19 | Herman Stange | 29 | Son | Farmer | Iowa |
| 20 | Honor Stange | 20 | Daughter-in-law | — | Iowa |
| 21 | Emil Schroeder | 34 | Head | Farm Operator | Iowa |
| 22 | Emma Schroeder | 36 | Wife | — | Iowa |
| 23 | Laverne Schroeder | 6 | Son | — | Iowa |
| 24 | Lorraine Schroeder | 3 | Daughter | — | Iowa |
| 25 | Frank Hugh | 36 | Hired hand | Farming | Iowa |
| 26 | Glenn H. A. Dryden | 26 | Head | Farm Operator | Iowa |
| 27 | Wilma Dryden | 24 | Wife | — | Iowa |
| 28 | Robert Dryden | 3 | Son | — | Iowa |
| 29 | Richard Dryden | 1 | Son | — | Iowa |
| 30 | Marilyn Dryden | 0 | Daughter | — | Iowa |
| 31 | John A. Vickey | 59 | Head | Farmer | Iowa |
| 32 | Ralph B. A. Klausen | 42 | Head | Farm Operator | Iowa |
| 33 | Rosina H. Klausen | 44 | Wife | — | Iowa |
| 34 | E. Fay A. Chambers | 37 | Head | Farm Operator | Iowa |
| 35 | Claus H. A. Engel | 66 | Head | Farm Operator | Germany |
| 36 | Cecelia M. Engel | 60 | Wife | — | Germany |
| 37 | Edna Engel | 20 | Daughter | — | Iowa |
| 38 | Dale Warren Engel | 18 | Son | — | Iowa |
| 39 | Alvin Walter Engel | 16 | 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)