MR
Mary Ritter — 1940 US Census Record
Linked across censuses1940 United States Federal Census · St.-Louis-County, Missouri
Our Model Tree links this Mary Ritter across the 1930 and 1940 US Censuses in St.-Louis-County, Missouri (XGBoost, ~Confirmed) — first a spouse (b.~1890), then head of a 4-person household.
Age 50
b. ~1890
Female
Spouse
Born: Missouri
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | St.-Louis-County, Missouri |
| Surname | Ritter |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | Missouri |
| 1935 Residence (City) | St Louis |
| 1935 Residence (County) | St Louis |
| Additional Details | |
| Highest Grade | S 8 |
| 1935 Residence | Missouri |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
| Township / Ward | Lemay Township |
| Est. Birth Year | ~1890 |
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 Mary | Age | Birth yr |
|---|---|---|---|---|
| Joseph Ritter | Head | — | 49 | ~1891 |
| Jane Ritter | Daughter | — | 16 | ~1924 |
| Joseph Ritter | Son | — | 21 | ~1919 |
| Mary Ritter | Spouse | — | 50 | ~1890 |
Census Appearances
1930
St Louis, …
Other, age 40
St Louis, Missouri · implied b. ~1890 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Rutter |
| Given Name | Margaret V. |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Missouri |
| Age at First Marriage | 20 |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Can Read/Write | Yes |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
1940
St.-Louis-County, Missouri
Spouse, age 50
St.-Louis-County, Missouri · implied b. ~1890 — 4 household members
| Surname | Ritter |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | Missouri |
| 1935 Residence (City) | St Louis |
| 1935 Residence (County) | St Louis |
| Highest Grade | S 8 |
| 1935 Residence | Missouri |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
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 Mary Ritter across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Ritter
Spouse · 1940 · age 50 · b. ~1890 · Missouri
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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 — St.-Louis-County, Missouri
Open full size
1940 US Federal Census — St.-Louis-County, Missouri
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02151-00213)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Clifford Koch | 14 | Son | — | Missouri |
| 42 | Thomas Thomas | 50 | Head | Laborer | Missouri |
| 43 | Louisa Thomas | 41 | Wife | — | Missouri |
| 44 | Norman Thomas | 16 | Son | — | Missouri |
| 45 | Lloyd Thomas | 4 | Son | — | Missouri |
| 46 | Philip Kirchner | 49 | Head | Farmer | Missouri |
| 47 | Lulu Kirchner | 41 | Wife | — | Missouri |
| 48 | Alfonso Kirchner | 20 | Son | Packer | Missouri |
| 49 | Virginia Kirchner | 18 | Daughter | Trimmer Tailor | Missouri |
| 50 | Wilma Kirchner | 16 | Daughter | Assistant Housewife | Missouri |
| 51 | Herman Wtohf|Wtohf|Wtohf | 25 | Head | Farmer | Missouri |
| 52 | Celeste Wtohf|Wtohf|Wtohf | 30 | Wife | — | Missouri |
| 53 | Glenn Wtohf|Wtohf|Wtohf | 4 | Son | — | Missouri |
| 54 | Louisa Studer | 68 | Mother-in-law | — | Missouri |
| 55 | Arthur Jennemann | 36 | Head | Merchant | Missouri |
| 56 | Mamie Jennemann | 35 | Wife | Saleswoman | Missouri |
| 57 | Alvin Jennemann | 9 | Son | — | Missouri |
| 58 | Katy Jennemann | 64 | Mother | — | Missouri |
| 59 | Arthur Louis Jennemann | 17 | Cousin | Clerk Salesman | Missouri |
| 60 | John Barth | 67 | Head | — | Germany |
| 61 | Tillie Barth | 67 | Wife | — | Missouri |
| 62 | Joseph C Ritter | 49 | Head | Service Man | Missouri |
| 63 | Mary Ritter THIS PERSON | 50 | Wife | — | Missouri |
| 64 | Joseph H Ritter | 21 | Son | Clerk | Missouri |
| 65 | Jane Ritter | 16 | Daughter | — | Missouri |
| 66 | Richard Kassebaum | 43 | Head | Rock Laborer | Missouri |
| 67 | Hattie Kassebaum | 39 | Wife | — | Missouri |
| 68 | Pearl Kassebaum | 14 | Daughter | — | Missouri |
| 69 | Richard Jr Kassebaum | 7 | Son | — | Missouri |
| 70 | Ruby M Kassebaum | 4 | Daughter | — | Missouri |
| 71 | Ray Lewis Kassebaum | 0 | Son | — | Missouri |
| 72 | Nick Eberhardt | 53 | Head | — | Hungary |
| 73 | Lillie Eberhardt | 57 | Wife | — | Wisconsin |
| 74 | Henry Sr Schuetz | 76 | Head | Farmer | Missouri |
| 75 | Annie Schuetz | 70 | Wife | — | Missouri |
| 76 | Harry Klunk | 37 | Head | Laborer | Missouri |
| 77 | Frieda Klunk | 34 | Wife | — | Missouri |
| 78 | Evelyn Klunk | 10 | Daughter | — | Missouri |
| 79 | Henry Jr Schuetz | 46 | Head | Farmer | Missouri |
| 80 | Katie Schuetz | 40 | Wife | — | Missouri |
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)