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John Ritter — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Scott-County, Iowa
Our Model Tree links this John Ritter across the 1930 and 1940 US Censuses in Scott-County, Iowa (XGBoost, ~Confirmed) — first a son (b.~1911), then head of a 6-person household.
Age 29
b. ~1911
Male
Son
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Scott-County, Iowa |
| Surname | Ritter |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Pleasant Valley Township |
| 1935 Residence (County) | Scott |
| Additional Details | |
| Occupation | laborer |
| Industry | milling |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 900 |
| Highest Grade | No 8 |
| 1935 Residence | Same house |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Laborer |
| Township / Ward | Pleasant Valley Township |
| Est. Birth Year | ~1911 |
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 |
|---|---|---|---|---|
| Annie Ritter | Spouse | — | 56 | ~1884 |
| Edwin Ritter | Son | — | 20 | ~1920 |
| Rudolph Ritter | Son | — | 26 | ~1914 |
| John Ritter | Son | — | 29 | ~1911 |
| Harry Ritter | Son | — | 17 | ~1923 |
| Bruno Ritter | Head | — | 55 | ~1885 |
Census Appearances
1930
Scott, Iowa
Son, age 19
Scott, Iowa · implied b. ~1911 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Ritter |
| Given Name | John H |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Rotterdam Germany |
| Mother's Birthplace | Hanover Germany |
| Occupation | Laborer |
| Industry | Gen Farm |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Scott-County, Iowa
Son, age 29
Scott-County, Iowa · implied b. ~1911 — 6 household members
| Surname | Ritter |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Pleasant Valley Township |
| 1935 Residence (County) | Scott |
| Occupation | laborer |
| Industry | milling |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 900 |
| Highest Grade | No 8 |
| 1935 Residence | Same house |
| 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 Ritter across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Ritter
Son · 1940 · age 29 · b. ~1911 · Iowa
★ You are viewing this record
Sibling
Edwin Ritter
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rudolph Ritter
Sibling · 1940 · age 26
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Harry Ritter
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
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-t0627-01203-01185)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Bruno Ritter | 55 | Head | Farmer | Germany |
| 2 | Annie Ritter | 56 | Wife | — | Germany |
| 3 | John Ritter THIS PERSON | 29 | Son | Laborer | Iowa |
| 4 | Rudolph Ritter | 26 | Son | Hired Hand | Iowa |
| 5 | Edwin Ritter | 20 | Son | Hired Hand | Iowa |
| 6 | Harry Ritter | 17 | Son | Hired Hand | Iowa |
| 7 | Dolph Hultquist | 48 | Head | Coremaker | Tennessee |
| 8 | Edna Hultquist | 36 | Wife | — | Illinois |
| 9 | Edna Hultquist | 18 | Daughter | Laborer | Illinois |
| 10 | William Hultquist | 16 | Son | Laborer | Illinois |
| 11 | John Hultquist | 15 | Son | — | Illinois |
| 12 | Mary Hultquist | 13 | Daughter | — | Illinois |
| 13 | Raymond Hultquist | 11 | Son | — | Iowa |
| 14 | Mona Hultquist | 10 | Daughter | — | Iowa |
| 15 | Ruth Hultquist | 8 | Daughter | — | Iowa |
| 16 | Robert Hultquist | 6 | Son | — | Iowa |
| 17 | Calvin Hultquist | 4 | Son | — | Iowa |
| 18 | Dorothy Hultquist | 3 | Daughter | — | Iowa |
| 19 | James Lawrence | 45 | Head | Hired Hand | Illinois |
| 20 | Mildred Lawrence | 44 | Wife | — | Indiana |
| 21 | Mary Lawrence | 19 | Daughter | — | Illinois |
| 22 | Joseph Lawrence | 17 | Son | — | Illinois |
| 23 | Martin Johnson | 45 | Head | Janitor | Nebraska |
| 24 | Frieda Johnson | 40 | Wife | — | Iowa |
| 25 | Robert Johnson | 21 | Son | Hired Hand | Iowa |
| 26 | Priscilla Johnson | 16 | Daughter | — | Nebraska |
| 27 | Joanne Johnson | 12 | Daughter | — | Nebraska |
| 28 | Sharon Johnson | 8 | Daughter | — | Iowa |
| 29 | John F. Ehlers | 49 | Head | Farmer | Iowa |
| 30 | Annie H. Ehlers | 49 | Wife | — | Iowa |
| 31 | Jeanette Ehlers | 19 | Daughter | — | Iowa |
| 32 | Dorothy Ehlers | 12 | Daughter | — | Iowa |
| 33 | Gus Ritter | 29 | Head | Farmer | Iowa |
| 34 | Anna Ritter | 24 | Wife | — | Iowa |
| 35 | James Ritter | 2 | Son | — | Iowa |
| 36 | Frances Ritter | 1 | Daughter | — | Iowa |
| 37 | Frederic Ritter | 29 | Head | Laborer | Iowa |
| 38 | Lillian Ritter | 19 | Wife | — | Illinois |
| 39 | Roma Ritter | 2 | Daughter | — | Iowa |
| 40 | Betty Ritter | 1 | Daughter | — | 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)