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John Ritter — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Baltimore-City-County, Maryland
Our Model Tree links this John Ritter across the 1930 and 1940 US Censuses in Baltimore-City-County, Maryland (XGBoost, ~Confirmed) — first a son (b.~1922), then head of a 10-person household.
Age 18
b. ~1922
Male
Son
Born: Maryland
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Baltimore-City-County, Maryland |
| Surname | Ritter |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore |
| Additional Details | |
| Hours Worked | 64 |
| Highest Grade | No 6 |
| 1935 Residence | Maryland |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Township / Ward | Baltimore City |
| Est. Birth Year | ~1922 |
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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| John Ritter | Son | — | 18 | ~1922 |
| Bessie Warfield | Spouse | — | 25 | ~1915 |
| Joanne Hay | Daughter | — | ~1940 | |
| Thomas Chestnut | Son | — | 9 | ~1931 |
| Barbara Kettenring | Daughter | — | 5 | ~1935 |
| Infant Warfield | Daughter | — | ~1940 | |
| Edith Kellum | Other | — | 9 | ~1931 |
| Ora Hoffman | Other | — | 45 | ~1895 |
| Annie Bowman | Other | — | 81 | ~1859 |
| Joseph Warfield | Head | — | 28 | ~1912 |
Census Appearances
1930
Baltimore, Maryland
Son, age 7
Baltimore, Maryland · implied b. ~1923 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Rutter |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Baltimore-City-County, Maryland
Son, age 18
Baltimore-City-County, Maryland · implied b. ~1922 — 10 household members
| Surname | Ritter |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore |
| Hours Worked | 64 |
| Highest Grade | No 6 |
| 1935 Residence | Maryland |
| 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 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 18 · b. ~1922 · Maryland
★ You are viewing this record
Sibling
Infant Warfield
Sibling · 1940 · age
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas Chestnut
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Barbara Kettenring
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joanne Hay
Sibling · 1940 · age
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 — Baltimore-City-County, Maryland
Open full size
1940 US Federal Census — Baltimore-City-County, Maryland
Page Contents
28 people indexed on this census page (nara:1940:m-t0627-01528-00442)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Edward A. Reisler | 68 | Husband | Street Comber | Germany |
| 2 | — | None | — | — | — |
| 3 | — | None | — | — | — |
| 4 | Monica B. Bromley | 19 | Daughter | Stenographer | Pennsylvania |
| 5 | Gilbert L. Coakley | 21 | Lodger | Secretary | Maryland |
| 6 | — | None | — | — | — |
| 7 | Mary J. Marshall | 0 | Daughter | — | Maryland |
| 8 | — | None | — | — | — |
| 9 | Joseph Jr. Warfield | 28 | Head | Draftsman | Maryland |
| 10 | Bessie M. Warfield | 25 | Wife | — | Maryland |
| 11 | Infant Warfield | 0 | Daughter | — | Maryland |
| 12 | Joanne M. Hay | 0 | Daughter | — | Maryland |
| 13 | Annie J. Bowman | 81 | Grandmother In-law | — | Pennsylvania |
| 14 | — | None | — | — | — |
| 15 | John Ritter THIS PERSON | 18 | Son | — | Maryland |
| 16 | — | None | — | — | — |
| 17 | — | None | — | — | — |
| 18 | Edith M. (Ab) Kellum | 9 | Granddaughter | — | Maryland |
| 19 | — | None | — | — | — |
| 20 | — | None | — | — | — |
| 21 | Thomas W. (Ab) Chestnut | 9 | Son | — | Maryland |
| 22 | — | None | — | — | — |
| 23 | — | None | — | — | — |
| 24 | Barbara E. Kettenring | 5 | Daughter | — | Maryland |
| 25 | — | None | — | — | — |
| 26 | — | None | — | — | — |
| 27 | Ora Hoffman | 45 | Housekeeper | Housekeeper | Maryland |
| 28 | — | None | — | — | — |
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)