MR
Mary Ritter — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Arapahoe-County, Colorado
Our Model Tree links this Mary Ritter across the 1930 and 1940 US Censuses in Arapahoe-County, Colorado (XGBoost, ~Confirmed) — first a spouse (b.~1901), then head of a 13-person household.
Age 39
b. ~1901
Female
Spouse
Born: Colorado
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Arapahoe-County, Colorado |
| Surname | Ritter |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | Colorado |
| 1935 Residence (City) | Prec 44 |
| 1935 Residence (County) | Arapahoe |
| Additional Details | |
| Occupation | Housewife |
| Industry | Farm |
| Class of Worker | NP |
| Income (1939) | 0 |
| Highest Grade | Hs 2 |
| 1935 Residence | Same place |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
| Occupation | Housewife |
| Township / Ward | Prec 44 |
| Est. Birth Year | ~1901 |
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.
13 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Ritter | Spouse | — | 39 | ~1901 |
| Bernice Ritter | Daughter | — | 4 | ~1936 |
| Raymond Ritter | Son | — | 17 | ~1923 |
| Lucile Ritter | Daughter | — | 12 | ~1928 |
| Harold Ritter | Son | — | 9 | ~1931 |
| Leo Ritter | Son | — | 8 | ~1932 |
| Raymond Ritter | Head | — | 43 | ~1897 |
| Ellen Ritter | Daughter | — | 10 | ~1930 |
| Ivan Scherer | Other | — | 28 | ~1912 |
| Margery Ritter | Daughter | — | 15 | ~1925 |
| Patricia Ritter | Daughter | — | 6 | ~1934 |
| Clara Ritter | Daughter | — | 13 | ~1927 |
| Barbara Ritter | Daughter | — | 3 | ~1937 |
Census Appearances
1930
Adams, Colorado
Spouse, age 28
Adams, Colorado · implied b. ~1902 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Rutter |
| Given Name | Mary F. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 28 |
| Marital Status | Married |
| Birthplace | Colorado |
| Age at First Marriage | 15 |
| Father's Birthplace | Missouri |
| Mother's Birthplace | West Virginia |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
1940
Arapahoe-County, Colorado
Spouse, age 39
Arapahoe-County, Colorado · implied b. ~1901 — 13 household members
| Surname | Ritter |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | Colorado |
| 1935 Residence (City) | Prec 44 |
| 1935 Residence (County) | Arapahoe |
| Occupation | Housewife |
| Industry | Farm |
| Class of Worker | NP |
| Income (1939) | 0 |
| Highest Grade | Hs 2 |
| 1935 Residence | Same place |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
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.
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This person
Anchor record
Mary Ritter
Spouse · 1940 · age 39 · b. ~1901 · Colorado
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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 — Arapahoe-County, Colorado
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1940 US Federal Census — Arapahoe-County, Colorado
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00455-01012)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | J. K. Krantzel | 61 | Head | Farmer | Germany |
| 2 | Eva Krantzel | 49 | Wife | Housewife | Iowa |
| 3 | L. T. Barnes | 65 | Head | Farmer | Missouri |
| 4 | Florence Barnes | 58 | Wife | Housewife | Kansas |
| 5 | Don Kendree | 34 | Son | Farmer | Kansas |
| 6 | E. E. Van Matre | 53 | Head | Farmer | Illinois |
| 7 | Isa Van Matre | 49 | Wife | Housewife | Illinois |
| 8 | Jessie Van Matre | 24 | Daughter | Clerk Typist | Colorado |
| 9 | William Van Matre | 18 | Son | Student | Colorado |
| 10 | James Johnson | 45 | Head | Farmer | Illinois |
| 11 | Teresa Johnson | 27 | Wife | Housewife | Colorado |
| 12 | Ralph Johnson | 11 | Son | — | Colorado |
| 13 | Della Johnson | 10 | Daughter | — | Colorado |
| 14 | Elbert Johnson | 8 | Son | — | Colorado |
| 15 | Hugh Johnson | 5 | Son | — | Colorado |
| 16 | Sarah Johnson | 4 | Daughter | — | Colorado |
| 17 | Romona Johnson | 2 | Daughter | — | Colorado |
| 18 | James Johnson | 1 | Son | — | Colorado |
| 19 | Arthur Ritter | 42 | Head | Farmer | Colorado |
| 20 | Crystal Ritter | 33 | Wife | Housewife | Kansas |
| 21 | Virginia Ritter | 2 | Daughter | — | Colorado |
| 22 | Lois Ritter | 1 | Daughter | — | Colorado |
| 23 | Raymond Ritter | 43 | Head | Farmer | Colorado |
| 24 | Mary Ritter THIS PERSON | 39 | Wife | Housewife | Colorado |
| 25 | Raymond Ritter | 17 | Son | Student | Colorado |
| 26 | Margery Ritter | 15 | Daughter | Student | Colorado |
| 27 | Clara Ritter | 13 | Daughter | Student | Colorado |
| 28 | Lucile Ritter | 12 | Daughter | — | Colorado |
| 29 | Ellen Ritter | 10 | Daughter | — | Colorado |
| 30 | Harold Gerald Ritter | 9 | Son | — | Colorado |
| 31 | Leo Ritter | 8 | Son | — | Colorado |
| 32 | Patricia Ritter | 6 | Daughter | — | Colorado |
| 33 | Bernice Ritter | 4 | Daughter | — | Colorado |
| 34 | Barbara Ritter | 3 | Daughter | — | Colorado |
| 35 | Ivan Scherer | 28 | Boarder | Hired Hand | Colorado |
| 36 | George Davies | 48 | Head | Rancher | Nebraska |
| 37 | Gladys Davies | 46 | Wife | Housewife | Nebraska |
| 38 | George Davies | 18 | Son | — | Colorado |
| 39 | Doris Davies | 10 | Daughter | — | Colorado |
| 40 | Marion Davies | 2 | Daughter | — | Colorado |
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)