TJ
Theodore Johnson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Hudson-County, New Jersey
Our Model Tree links this Theodore Johnson across the 1910, 1920, 1930 and 1940 US Censuses in Hudson-County, New Jersey (XGBoost, ~Confirmed), with identified parents Stephan & Johanna — first a head (b.~1900), then head of a 3-person household.
Age 40
b. ~1900
Male
Head
Born: New Jersey
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Hudson-County, New Jersey |
| Surname | Johnson |
| Given Name | Theodore |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | New Jersey |
| 1935 Residence (City) | Union City |
| 1935 Residence (County) | Hudson |
| Additional Details | |
| Occupation | Inspector |
| Industry | Manufacturing |
| Class of Worker | PW |
| Hours Worked | 45 |
| Income (1939) | 2275 |
| Highest Grade | H 1 |
| 1935 Residence | Same place |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
| Occupation | Inspector |
| Township / Ward | Union City |
| Est. Birth Year | ~1900 |
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 Theodore | Age | Birth yr |
|---|---|---|---|---|
| Marion Johnson | Daughter | — | 16 | ~1924 |
| Theodore Johnson | Head | — | 40 | ~1900 |
| Loretta Johnson | Spouse | — | 41 | ~1899 |
Census Appearances
1910
Hudson, New …
Son, age 10
Hudson, New Jersey · implied b. ~1900 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Theodore |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | Norwegian |
| Mother's Birthplace | Germany |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1920
Hudson, New …
Son, age 20
Hudson, New Jersey · implied b. ~1900 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Theodore |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | Norway |
| Mother's Birthplace | Berlin |
| Occupation | Typist |
| Industry | Export House |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1930
Hudson, New …
Head, age 30
Hudson, New Jersey · implied b. ~1900 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Theodore |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | New Jersey |
| Age at First Marriage | 27 |
| Father's Birthplace | Norway |
| Mother's Birthplace | Germany |
| Occupation | clerk |
| Industry | mfg co |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Home Value / Rent | 30 |
| Radio Set | R |
| Veteran | No |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1940
Hudson-County, New …
Head, age 40
Hudson-County, New Jersey · implied b. ~1900 — 3 household members
| Surname | Johnson |
| Given Name | Theodore |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | New Jersey |
| 1935 Residence (City) | Union City |
| 1935 Residence (County) | Hudson |
| Occupation | Inspector |
| Industry | Manufacturing |
| Class of Worker | PW |
| Hours Worked | 45 |
| Income (1939) | 2275 |
| Highest Grade | H 1 |
| 1935 Residence | Same place |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
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 Theodore Johnson across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Stephan Johnson (~0.92 confidence) and mother Johanna Johnson (~0.92 confidence) and mother Johanna Johnson (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Stephan Johnson
b. ~1853
Source father
● Household
· direct · ~0.92
Mother
Johanna Johnson
b. ~1858
Source mother
● Household
· direct · ~0.92
Mother
Johanna Johnson
b. ~1860
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Theodore Johnson
Head · 1940 · age 40 · b. ~1900 · New Jersey
★ 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 — Hudson-County, New Jersey
Open full size
1940 US Federal Census — Hudson-County, New Jersey
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02352-00425)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Theodore Johnson THIS PERSON | 40 | Head | Inspector | New Jersey |
| 2 | Loretta Johnson | 41 | Wife | — | New Jersey |
| 3 | Marion Johnson | 16 | Daughter | — | New Jersey |
| 4 | Harold Ertz | 26 | Head | Grinder | New Jersey |
| 5 | Josephine Ertz | 22 | Wife | — | New York |
| 6 | Joan Ann Ertz | 4 | Daughter | — | New Jersey |
| 7 | Alphonse Bognar | 59 | Head | Cook | Italy |
| 8 | Severina Bognar | 53 | Wife | — | Italy |
| 9 | Dario Bognar | 19 | Son | Waiter | Italy |
| 10 | Anna Boylan | 40 | Head | Seamstress | New York |
| 11 | William Boylan | 13 | Son | — | New York |
| 12 | Agnes Lovering | 42 | Sister | Maid | New York |
| 13 | Charles Cardinale | 27 | Head | Knives | New York |
| 14 | Clarice Cardinale | 25 | Wife | — | New Jersey |
| 15 | Mary Cardinale | 25 | Daughter | Spinner | New Jersey |
| 16 | Peter Cardinale | 5 | Son | — | New Jersey |
| 17 | Catherine Guite | 31 | Head | Clerk | New Jersey |
| 18 | Mary Guite | 27 | Sister | Packer | New Jersey |
| 19 | Joseph Heble | 37 | Head | Wheelsman | New Jersey |
| 20 | Minnie Heble | 35 | Wife | — | New Jersey |
| 21 | Mary Heble | 15 | Daughter | — | New York |
| 22 | Frank Ferraro | 26 | Head | Driver | New York |
| 23 | Shirley Ferraro | 18 | Wife | — | New Jersey |
| 24 | Frank Ferraro | 0 | Son | — | New Jersey |
| 25 | Adrian Petersen | 25 | Head | Mechanic | New Jersey |
| 26 | Theresa Petersen | 24 | Wife | — | New Jersey |
| 27 | Margaret Petersen | 1 | Daughter | — | New Jersey |
| 28 | Andrew Treano | 43 | Head | Painter | New Jersey |
| 29 | Andrew Treano | 15 | Son | New Worker | New Jersey |
| 30 | Margaret Treano | 43 | Wife | — | New Jersey |
| 31 | Charles Potti | 45 | Head | Melder | New Jersey |
| 32 | Florence Potti | 43 | Wife | — | New York |
| 33 | Joseph Potti | 31 | Head | Oil & Coal | New Jersey |
| 34 | Dorothy Potti | 24 | Wife | — | New York |
| 35 | John Reeson | 38 | Head | Driver | New Jersey |
| 36 | Josephine Reeson | 37 | Wife | Typist | New York |
| 37 | Edward Gunther | 41 | Head | Junkman | New York |
| 38 | Mary Gunther | 43 | Wife | — | New York |
| 39 | Doris Gunther | 17 | Daughter | — | New Jersey |
| 40 | Eleanor Gunther | 13 | Daughter | — | New Jersey |
Pedigree Summary
Theodore
Gen 1 · 3 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)