JR
John Ritter — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Philadelphia-County, Pennsylvania
Our Model Tree links this John Ritter across the 1930 and 1940 US Censuses in Philadelphia-County, Pennsylvania (XGBoost, ~Confirmed) — first a son (b.~1923), then head of a 13-person household.
Age 17
b. ~1923
Male
Son
Born: Penna
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Philadelphia-County, Pennsylvania |
| Surname | Ritter |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Penna |
| 1935 Residence (City) | Phila City |
| 1935 Residence (County) | PHILA |
| Additional Details | |
| Occupation | New Worker |
| Income (1939) | 0 |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | penna |
| Occupation | New Worker |
| Township / Ward | Phila City |
| Est. Birth Year | ~1923 |
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 John | Age | Birth yr |
|---|---|---|---|---|
| Alice Ritter | Other | — | 20 | ~1920 |
| Elizabeth Ritter | Other | — | 12 | ~1928 |
| Frank Ritter | Son | — | 22 | ~1918 |
| Stanley Ritter | Son | — | 8 | ~1932 |
| Letetia Ritter | Spouse | — | 45 | ~1895 |
| Samuel Ritter | Son | — | 20 | ~1920 |
| William Ritter | Son | — | 24 | ~1916 |
| William Ritter | Other | — | 1 | ~1939 |
| William Ritter | Head | — | 49 | ~1891 |
| Mary Ritter | Other | — | 8 | ~1932 |
| Joseph Ritter | Son | — | 5 | ~1935 |
| John Ritter | Son | — | 17 | ~1923 |
| Judith Ritter | Other | — | 1 | ~1939 |
Census Appearances
1930
Philadelphia, Pennsylvania
Son, age 7
Philadelphia, Pennsylvania · implied b. ~1923 — 5 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 | Penna. |
| Father's Birthplace | Penna. |
| Mother's Birthplace | Penna. |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | penna |
1940
Philadelphia-County, Pennsylvania
Son, age 17
Philadelphia-County, Pennsylvania · implied b. ~1923 — 13 household members
| Surname | Ritter |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Penna |
| 1935 Residence (City) | Phila City |
| 1935 Residence (County) | PHILA |
| Occupation | New Worker |
| Income (1939) | 0 |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | penna |
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 17 · b. ~1923 · Pennsylvania
★ You are viewing this record
Sibling
Frank Ritter
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Ritter
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Samuel Ritter
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Ritter
Sibling · 1940 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Stanley Ritter
Sibling · 1940 · age 8
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 — Philadelphia-County, Pennsylvania
Open full size
1940 US Federal Census — Philadelphia-County, Pennsylvania
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-03739-00613)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Mary Lautenbacher | 19 | Dau | New Worker | Penna |
| 2 | Barbara O'Gara | 30 | Dau | Sewer | Penna |
| 3 | Martin Ryan | 33 | Head | Fireman | Eire |
| 4 | Margaret Ryan | 28 | Wife | — | Scotland |
| 5 | Martin Ryan | 7 | Son | — | Penna |
| 6 | Margaret Ryan | 7 | Dau | — | Penna |
| 7 | Thomas Ryan | 6 | Son | — | Penna |
| 8 | John Ryan | 5 | Son | — | Penna |
| 9 | Alice Ryan | 3 | Dau | — | Penna |
| 10 | Walker Young | 45 | Head | Crane Opr. | Virginia |
| 11 | Jesse Young | 41 | Wife | Proprietor | Virginia |
| 12 | Henry Mcdonald | 37 | Head | Clerk | Penna |
| 13 | Emma Mcdonald | 37 | Wife | — | Penna |
| 14 | James Mcdonald | 16 | Son | — | Penna |
| 15 | Loretta Mcdonald | 14 | Dau | — | Penna |
| 16 | Margaret Mcdonald | 13 | Dau | — | Penna |
| 17 | Catherine Mcdonald | 12 | Dau | — | Penna |
| 18 | Rosanna Mcdonald | 3 | Dau | — | Penna |
| 20 | Ellen Maher | 65 | Head | — | Penna |
| 21 | Timothy Maher | 37 | Son | Machine Opr. | Penna |
| 22 | William Maher | 36 | Son | Machine Opr. | Penna |
| 23 | Ellen Maher | 28 | Dau | — | Penna |
| 24 | William Ritter | 49 | Head | Brake Hand | Penna |
| 25 | Letetia Ritter | 45 | Wife | Waitress | Penna |
| 26 | Frank Ritter | 22 | Son | — | Penna |
| 27 | Samuel Ritter | 20 | Son | Laborer | Penna |
| 28 | John Ritter THIS PERSON | 17 | Son | New Worker | Penna |
| 29 | Elizabeth Ritter | 12 | Dau | — | Penna |
| 30 | Mary Ritter | 8 | Dau | — | Penna |
| 31 | Stanley Ritter | 8 | Son | — | Penna |
| 32 | Joseph Ritter | 5 | Son | — | Penna |
| 33 | William Ritter | 24 | Son | Shears Opr | Penna |
| 34 | Alice Ritter | 20 | Dau-in-L | — | Penna |
| 35 | Judith Ritter | 1 | Gr-Dau | — | Penna |
| 36 | William Ritter | 1 | Gr-Son | — | Penna |
| 37 | Harry Walker | 42 | Head | Machine Opr. | Penna |
| 38 | Agnes Walker | 36 | Wife | — | Penna |
| 39 | Joseph Walker | 18 | Son | New Worker | Penna |
| 40 | Eleanor Walker | 15 | Dau | New Worker | Penna |
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)