JT
John Todd — 1940 US Census Record
Model Tree available1940 United States Federal Census · Philadelphia-County, Pennsylvania
Our Model Tree links this John Todd across the 1920, 1930 and 1940 US Censuses in Philadelphia-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents Jennie & John — first a head (b.~1917), then head of a 3-person household.
Age 23
b. ~1917
Male
Head
Born: Pennsylvania
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Philadelphia-County, Pennsylvania |
| Surname | Todd |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Philadelphia |
| 1935 Residence (County) | Philadelphia |
| Additional Details | |
| Occupation | Clerk |
| Industry | Bank Trust Co |
| Class of Worker | PW |
| Hours Worked | 40 |
| Highest Grade | H-4 |
| 1935 Residence | Same Place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Clerk |
| Township / Ward | Philadelphia |
| Est. Birth Year | ~1917 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Loni Todd | Daughter | — | 1 | ~1939 |
| John Todd | Head | — | 23 | ~1917 |
| Regina Todd | Spouse | — | 23 | ~1917 |
Census Appearances
1920
Philadelphia, Pennsylvania
Son, age 3
Philadelphia, Pennsylvania · implied b. ~1917 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Todd |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Philadelphia, Pennsylvania
Son, age 13
Philadelphia, Pennsylvania · implied b. ~1917 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Todd |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Philadelphia-County, Pennsylvania
Head, age 23
Philadelphia-County, Pennsylvania · implied b. ~1917 — 3 household members
| Surname | Todd |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Philadelphia |
| 1935 Residence (County) | Philadelphia |
| Occupation | Clerk |
| Industry | Bank Trust Co |
| Class of Worker | PW |
| Hours Worked | 40 |
| Highest Grade | H-4 |
| 1935 Residence | Same Place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
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 Todd across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Jennie Todd (~0.92 confidence) and father John Todd (~0.92 confidence) and mother Ida Todd (~0.92 confidence) and father John Todd (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Jennie Todd
b. ~1888
Source mother
● Household
· direct · ~0.92
Father
John Todd
b. ~1888
Source father
● Household
· direct · ~0.92
Mother
Ida Todd
b. ~1896
Source mother
● Household
· direct · ~0.92
Father
John Todd
b. ~1897
Source father
● Household
· direct · ~0.92
This person
Anchor record
John Todd
Head · 1940 · age 23 · b. ~1917 · Pennsylvania
★ You are viewing this record
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
40 people indexed on this census page (nara:1940:m-t0627-03699-00280)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | John O'Donnell | 79 | Lodger | Waterman | Ireland |
| 42 | Carolina Pancunzi | 75 | Head | — | Italy |
| 43 | Angelina Pancunzi | 41 | Daughter | — | Italy |
| 44 | William Klein | 42 | Head | Artist | Pennsylvania |
| 45 | Edna Klein | 47 | Wife | Clerical | Pennsylvania |
| 46 | Harold Klein | 29 | Son | — | Pennsylvania |
| 47 | John Todd THIS PERSON | 23 | Head | Clerk | Pennsylvania |
| 48 | Regina Todd | 23 | Wife | Bookkeeper | Pennsylvania |
| 49 | Loni Jean Todd | 1 | Daughter | — | Pennsylvania |
| 50 | William Lukens | 32 | Head | Signalman | Pennsylvania |
| 51 | Anna Lukens | 30 | Wife | — | Pennsylvania |
| 52 | William Jr Lukens | 10 | Son | — | Pennsylvania |
| 53 | Harry Mason | 64 | Head | Watchman | Pennsylvania |
| 54 | Emma Mason | 62 | Wife | — | New York |
| 55 | Emma E. Mason | 35 | Daughter | Bookkeeper | Pennsylvania |
| 56 | William Toner | 71 | Head | Stationary Fireman | Pennsylvania |
| 57 | Joseph Toner | 26 | Son | Tuner | Pennsylvania |
| 58 | William Jr Toner | 32 | Son | Clerk | Pennsylvania |
| 59 | John Toner | 28 | Son | Mechanic | Pennsylvania |
| 60 | Paul Toner | 30 | Son | Clerk | Pennsylvania |
| 61 | Rita Griffin | 27 | 1st Cousin | Packer | Pennsylvania |
| 62 | Helen Griffin | 28 | 1st Cousin | Packer | Pennsylvania |
| 63 | S. Francis Griffin | 26 | 1st Cousin | Waiter | Pennsylvania |
| 64 | William Klein | 42 | Son in Law | Mechanist Helper | Pennsylvania |
| 65 | Helen Klein | 35 | Daughter | — | Pennsylvania |
| 66 | William Jr Klein | 5 | Grandson | — | Pennsylvania |
| 67 | Frank Jernigan | 51 | Head | Engineer | Illinois |
| 68 | Anna Jernigan | 48 | Wife | — | Germany |
| 69 | Robert Jernigan | 20 | Son | Marine | St. Louis |
| 70 | Catherine Brown | 41 | Mother in Law | Valley Green Inn | Germany |
| 71 | Margaret Brown | 19 | Niece | Waitress | Pennsylvania |
| 72 | Catherine Brown | 16 | Niece | Waitress | Pennsylvania |
| 73 | William Brown | 14 | Nephew | — | Pennsylvania |
| 74 | Howard Scarborough | 57 | Head | Assistant Purchasing Agent | So. Dakota |
| 75 | Frances Scarborough | 52 | Wife | — | Pennsylvania |
| 76 | Ann Scarborough | 21 | Daughter | — | Pennsylvania |
| 77 | Charles Scarborough | 15 | Son | — | Pennsylvania |
| 78 | Marion Scarborough | 14 | Daughter | — | Pennsylvania |
| 79 | Harry Wacker | 39 | Head | Plumber | Pennsylvania |
| 80 | Margaret Wacker | 36 | Wife | — | Pennsylvania |
Pedigree Summary
John
Gen 1 · 4 parents
~0.92
Max depth 4 (1900–1950 window)
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)