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John Ritter — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Baltimore, Maryland
Our Model Tree links this John Ritter across the 1930 and 1940 US Censuses in Baltimore, Maryland (XGBoost, ~Confirmed) — first a son (b.~1919), then head of a 7-person household.
Age 11
b. ~1919
Male
Son
Born: Maryland
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Baltimore, Maryland |
| Surname | Ritter |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Maryland |
| Additional Details | |
| Occupation | Dipper |
| Industry | Enamel Works |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Occupation | Dipper |
| Township / Ward | Baltimore City |
| Est. Birth Year | ~1919 |
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.
7 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| William Ritter | Head | — | 35 | ~1895 |
| Robert Ritter | Son | — | 1 | ~1929 |
| Bernice Ritter | Spouse | — | 31 | ~1899 |
| David Ritter | Son | — | 4 | ~1926 |
| William Ritter | Son | — | 13 | ~1917 |
| Rose Sanner | Other | — | 71 | ~1859 |
| John Ritter | Son | — | 11 | ~1919 |
Census Appearances
1930
Baltimore, Maryland
Son, age 11
Baltimore, Maryland · implied b. ~1919 — 7 household members
| Surname | Ritter |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Maryland |
| Occupation | Dipper |
| Industry | Enamel Works |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Baltimore-City-County, Maryland
Son, age 22
Baltimore-City-County, Maryland · implied b. ~1918 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Rutter |
| Given Name | John H. Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore City |
| 1935 Residence (County) | Baltimore City |
| Highest Grade | C 4 |
| 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 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 · 1930 · age 11 · b. ~1919 · Maryland
★ You are viewing this record
Sibling
William Ritter
Sibling · 1930 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Ritter
Sibling · 1930 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
David Ritter
Sibling · 1930 · age 4
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
1930 US Federal Census — Baltimore, Maryland
Open full size
1930 US Federal Census — Baltimore, Maryland
Page Contents
19 people indexed on this census page (ia:1930:15thcensus865unit:0501)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Alice A Bradley | 65 | Head | Shipping Clerk | Maryland |
| 52 | Howard Miller | 71 | Nephew | Teamster | Maryland |
| 53 | Samuel Sanner | 30 | Head | Laborer | Maryland |
| 54 | Beatrice Sanner | 25 | Wife | Machine Hand | Maryland |
| 55 | Frank Sanner | 24 | Head | Shipping Clerk | Maryland |
| 56 | Ruth Sanner | 21 | Wife | — | Maryland |
| 57 | Franklin V Sanner | 2 | Son | — | Maryland |
| 58 | Evelyn Sanner | 1 | Daughter | — | Maryland |
| 59 | Robert Sanner | 0 | Son | — | Maryland |
| 60 | Charles Sanner | 4 | Step Son | — | Maryland |
| 61 | William H Ritter | 35 | Head | Crossing Watchman | Illinois |
| 62 | Bernice Ritter | 31 | Wife | — | Maryland |
| 63 | Rose Sanner | 71 | Mother in law | — | Maryland |
| 64 | William Ritter | 13 | Son | Sprayer | Maryland |
| 65 | John Ritter THIS PERSON | 11 | Son | Dipper | Maryland |
| 66 | David R Ritter | 4 | Son | — | Maryland |
| 67 | Robert A Ritter | 1 | Son | — | Maryland |
| 68 | John Sanner | 72 | Head | Retired | Maryland |
| 69 | William Sanner | 12 | Brother | — | Maryland |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)