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John Schroeder — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Scott-County, Iowa
Our Model Tree links this John Schroeder across the 1920, 1930 and 1940 US Censuses in Scott-County, Iowa (XGBoost, ~Confirmed) — first a head (b.~1885), then head of a 6-person household.
Age 55
b. ~1885
Male
Head
Born: Iowa
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Scott-County, Iowa |
| Surname | Schroeder |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 55 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Davenport City |
| 1935 Residence (County) | Scott |
| Additional Details | |
| Occupation | Proprietor |
| Industry | Machine Shop |
| Class of Worker | OA |
| Hours Worked | 65 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Proprietor |
| Township / Ward | Davenport City |
| Est. Birth Year | ~1885 |
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 John | Age | Birth yr |
|---|---|---|---|---|
| Marilyn Schroeder | Daughter | — | 19 | ~1921 |
| Phyllis Schroeder | Daughter | — | 21 | ~1919 |
| John Schroeder | Head | — | 55 | ~1885 |
| Heinrich Schroeder | Other | — | 90 | ~1850 |
| Leslie Schroeder | Son | — | 17 | ~1923 |
| Ella Schroeder | Spouse | — | 49 | ~1891 |
Census Appearances
1920
Scott, Iowa
Head, age 35
Scott, Iowa · implied b. ~1885 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Schroeder |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Iowa |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Occupation | Machinist Foreman |
| Industry | Factory |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | R |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Scott, Iowa
Head, age 45
Scott, Iowa · implied b. ~1885 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Schroeder |
| Given Name | John H |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | Iowa |
| Age at First Marriage | 27 |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Occupation | Machinist |
| Industry | Produce Mfg. |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 6000 |
| Radio Set | R |
| Veteran | No |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Scott-County, Iowa
Head, age 55
Scott-County, Iowa · implied b. ~1885 — 6 household members
| Surname | Schroeder |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 55 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Davenport City |
| 1935 Residence (County) | Scott |
| Occupation | Proprietor |
| Industry | Machine Shop |
| Class of Worker | OA |
| Hours Worked | 65 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 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 John Schroeder across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Schroeder
Head · 1940 · age 55 · b. ~1885 · 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
38 people indexed on this census page (nara:1940:m-t0627-01203-00751)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Gene Elizabeth Corey | 30 | Wife | — | Iowa |
| 2 | Sharon E Corey | 2 | Daughter | — | Iowa |
| 3 | George A Wieneke | 66 | Head | Chemist Assistant | Iowa |
| 4 | Glacie M Wieneke | 59 | Wife | — | Scotland |
| 5 | Agnes C Wieneke | 33 | Daughter | Cashier | Iowa |
| 6 | Jessie Wieneke | 28 | Daughter | Office Clerk | Iowa |
| 7 | Edward Concannon | 74 | Head | Salesman | Iowa |
| 8 | Mary E Concannon | 69 | Wife | — | Iowa |
| 9 | Joseph Dooley | 57 | Head | Auditor | Illinois |
| 10 | Laura E Dooley | 56 | Wife | — | Illinois |
| 11 | Joseph B Dooley | 19 | Son | Office Clerk | Iowa |
| 12 | William Leo Howes | 70 | Head | — | Illinois |
| 13 | Elizabeth Howes | 61 | Wife | — | Illinois |
| 14 | Katherine Howes | 34 | Daughter | Office Clerk | Illinois |
| 16 | Helen E Ackerman | 29 | Roomer | Teacher | Iowa |
| 17 | William Kellenberger | 60 | Head | Manager | Illinois |
| 18 | Ieone Kellenberger | 29 | Wife | Teacher | Illinois |
| 19 | William Kellenberger | 26 | Son | Machinist Helper | Iowa |
| 20 | Helen Kellenberger | 26 | Daughter-in-law | — | Iowa |
| 21 | Robert Kellenberger | 19 | Son | — | Iowa |
| 22 | Joanne Kellenberger | 6 | Granddaughter | — | Illinois |
| 23 | Bessie Eisner | 65 | Head | — | Iowa |
| 24 | Bertha Schmidt | 72 | Roomer | — | Iowa |
| 25 | Paul Young | 39 | Head | Dean | Iowa |
| 26 | Leona O Young | 40 | Wife | — | Iowa |
| 27 | Phyllis Young | 16 | Daughter | — | Iowa |
| 28 | Beverley Young | 14 | Daughter | — | Iowa |
| 29 | Joyce Young | 13 | Daughter | — | Iowa |
| 30 | Patricia Young | 7 | Daughter | — | Iowa |
| 31 | Mary Ann Hillis | 11 | Visitor | — | Illinois |
| 32 | Eva J Gregg | 47 | Head | Ladies Tailor | Iowa |
| 33 | Winnie Helen R Gregg | 70 | Roomer | — | Illinois |
| 34 | John Schroeder THIS PERSON | 55 | Head | Proprietor | Iowa |
| 35 | Ella Schroeder | 49 | Wife | — | Iowa |
| 36 | Phyllis Schroeder | 21 | Daughter | — | Iowa |
| 37 | Marilyn Schroeder | 19 | Daughter | Cashier | Iowa |
| 38 | Leslie Schroeder | 17 | Son | New Worker | Iowa |
| 39 | Heinrich Schroeder | 90 | Father | — | Germany |
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)