MR
Mary Ritter — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Baltimore-City-County, Maryland
Our Model Tree links this Mary Ritter across the 1930 and 1940 US Censuses in Baltimore-City-County, Maryland (XGBoost, ~Confirmed) — first a spouse (b.~1894), then head of a 5-person household.
Age 46
b. ~1894
Female
Spouse
Born: Maryland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Baltimore-City-County, Maryland |
| Surname | Ritter |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore |
| 1935 Residence (County) | Baltimore City |
| Additional Details | |
| Occupation | Janitress |
| Industry | Court House |
| Class of Worker | GW |
| Hours Worked | 18 |
| Income (1939) | 740 |
| Highest Grade | No 5 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Occupation | Janitress |
| Township / Ward | Baltimore |
| Est. Birth Year | ~1894 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Margaret Ritter | Daughter | — | 25 | ~1915 |
| Joseph Ritter | Son | — | 18 | ~1922 |
| Mary Ritter | Spouse | — | 46 | ~1894 |
| Joseph Ritter | Head | — | 50 | ~1890 |
| Lillian Ritter | Daughter | — | 11 | ~1929 |
Census Appearances
1930
Baltimore, Maryland
Other, age 37
Baltimore, Maryland · implied b. ~1893 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Ritter |
| Given Name | Margaret |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Maryland |
| Age at First Marriage | 22 |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Can Read/Write | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Baltimore-City-County, Maryland
Spouse, age 46
Baltimore-City-County, Maryland · implied b. ~1894 — 5 household members
| Surname | Ritter |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore |
| 1935 Residence (County) | Baltimore City |
| Occupation | Janitress |
| Industry | Court House |
| Class of Worker | GW |
| Hours Worked | 18 |
| Income (1939) | 740 |
| Highest Grade | No 5 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
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 46 · b. ~1894 · Maryland
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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 — Baltimore-City-County, Maryland
Open full size
1940 US Federal Census — Baltimore-City-County, Maryland
Page Contents
30 people indexed on this census page (nara:1940:m-t0627-01511-00054)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Frank S. Mckenney | 63 | Head | Chief Clerk Sig Dept | Maryland |
| 42 | Beulah F. Mckenney | 53 | Wife | — | Maryland |
| 43 | Wayforth Parks | 42 | Head | Service Station | Maryland |
| 44 | Melva B. Parks | 43 | Wife | Tele. Operator | Maryland |
| 45 | George C. Thomas | 45 | Head | Inspector | Maryland |
| 46 | Angelina B. Thomas | 32 | Wife | — | Maryland |
| 47 | George H. May | 24 | Head | Motorman | Maryland |
| 48 | Gertrude N. May | 22 | Wife | Marker | Maryland |
| 49 | George C. Bauernschub | 48 | Head | Elevator Oper. | Maryland |
| 50 | Augusta Bauernschub | 45 | Wife | — | Maryland |
| 51 | Marie Macdermott | 39 | Head | Head Waitress | New York |
| 52 | Michael F. Wollin | 54 | Head | Engineer | Maryland |
| 53 | Elizabeth Wollin | 47 | Wife | — | Maryland |
| 54 | George J. Wohner | 54 | Head | Printer | Maryland |
| 55 | Margaret E. Wohner | 51 | Wife | — | Maryland |
| 56 | Margaret E. Wohner | 13 | Daughter | — | Maryland |
| 57 | Fredric C. R. Cook | 50 | Head | Barber | Maryland |
| 58 | Alberdine Cook | 51 | Wife | — | Maryland |
| 59 | Charles F. Cook | 26 | Son | Baker | Maryland |
| 60 | Harry L. Cook | 23 | Son | Laborer | Maryland |
| 61 | Clifford F. Cook | 20 | Son | Baker | Maryland |
| 62 | Gordon F. Cook | 16 | Son | New Worker | Maryland |
| 63 | Joseph G. Ritter | 50 | Head | Laborer | Maryland |
| 64 | Mary Ritter THIS PERSON | 46 | Wife | Janitress | Maryland |
| 65 | Margaret Ritter | 25 | Daughter | Packer | Maryland |
| 66 | Joseph Jr. Ritter | 18 | Son | Doubler | Maryland |
| 67 | Lillian Ritter | 11 | Daughter | — | Maryland |
| 68 | John J. Wehner | 68 | Head | Engineer | Maryland |
| 69 | Gertrude Wehner | 71 | Wife | — | Maryland |
| 70 | Madeline Link | 20 | Daughter | — | Maryland |
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)