RJ
Robert Johnson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Hudson-County, New Jersey
Our Model Tree links this Robert Johnson across the 1920, 1930 and 1940 US Censuses in Hudson-County, New Jersey (XGBoost, ~Confirmed), with identified parents Knut & Anna — first a son (b.~1917), then head of a 6-person household.
Age 23
b. ~1917
Male
Son
Born: New Jersey
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Hudson-County, New Jersey |
| Surname | Johnson |
| Given Name | Robert |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Jersey City |
| 1935 Residence (County) | Hudson |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | C 4 |
| 1935 Residence | Same house |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
| Township / Ward | Jersey City |
| 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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Claire Johnson | Daughter | — | 16 | ~1924 |
| John Johnson | Son | — | 12 | ~1928 |
| Edward Johnson | Son | — | 18 | ~1922 |
| Joseph Johnson | Son | — | 25 | ~1915 |
| Robert Johnson | Son | — | 23 | ~1917 |
| Anna Johnson | Spouse | — | 55 | ~1885 |
Census Appearances
1920
Hudson, New …
Son, age 2
Hudson, New Jersey · implied b. ~1918 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | Sweden |
| Mother's Birthplace | New Jersey |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1930
Hudson, New …
Son, age 12
Hudson, New Jersey · implied b. ~1918 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | Sweden |
| Mother's Birthplace | New Jersey |
| Can Read/Write | Yes |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1940
Hudson-County, New …
Son, age 23
Hudson-County, New Jersey · implied b. ~1917 — 6 household members
| Surname | Johnson |
| Given Name | Robert |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Jersey City |
| 1935 Residence (County) | Hudson |
| Income (1939) | 0 |
| Highest Grade | C 4 |
| 1935 Residence | Same house |
| 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 Robert Johnson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Knut Johnson (~0.92 confidence) and mother Anna Johnson (~0.92 confidence) and mother Anna Johnson (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Knut Johnson
b. ~1878
Source father
● Household
· direct · ~0.92
Mother
Anna Johnson
b. ~1885
Source mother
● Household
· direct · ~0.92
Mother
Anna Johnson
b. ~1883
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Johnson
Son · 1940 · age 23 · b. ~1917 · New Jersey
★ You are viewing this record
Sibling
Joseph Johnson
Sibling · 1940 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edward Johnson
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Johnson
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Claire Johnson
Sibling · 1940 · age 16
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 — 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-t0627-02408-00558)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Anna Johnson | 55 | wife | — | New Jersey |
| 42 | Joseph Johnson | 25 | son | Brokers Clerk | New Jersey |
| 43 | Robert Johnson THIS PERSON | 23 | son | — | New Jersey |
| 44 | Edward Johnson | 18 | son | — | New Jersey |
| 45 | Claire Johnson | 16 | daughter | — | New Jersey |
| 46 | John Johnson | 12 | son | — | New Jersey |
| 47 | Anna Devermann | 76 | head | — | New York |
| 48 | Henrietta Bock | 74 | sister | — | New York |
| 49 | Mary Jordan | 49 | head | Cook | New York |
| 50 | Demetria Jordan | 22 | daughter | Telephone Oper. | New York |
| 51 | John Jordan | 17 | son | — | New York |
| 52 | William Godfrey | 56 | head | Mech. Helper | Ireland Free State |
| 53 | Nora Godfrey | 52 | wife | — | Ireland Free State |
| 54 | Edward Godfrey | 29 | son | Boiler Maker | New Jersey |
| 55 | William Jr. Godfrey | 26 | son | Clerk | New Jersey |
| 56 | Mary Mclaren | 61 | head | — | New York |
| 57 | Ben|Bernhard Mount | 71 | head | Druggist | Maryland |
| 58 | Harriet|Harriet Bushman Mount | 62 | wife | — | Pennsylvania |
| 59 | Henry Otter | 61 | head | Superintendent Bldg | New Jersey |
| 60 | Ernestine Otter | 57 | wife | — | New Jersey |
| 61 | Eleanor K. Otter | 25 | daughter | Secretary | New Jersey |
| 62 | Mary Scudder | 50 | head | Teacher | New York |
| 63 | Clara Haight | 69 | head | Practical Nurse | New York |
| 64 | Joseph King | 27 | head | Handy Man | New Jersey |
| 65 | Dorothy King | 23 | wife | Tel. Operator | New Jersey |
| 66 | Al Asher | 63 | head | Theatrical Teacher | New York |
| 67 | Dorothy Asher | 45 | wife | — | New York |
| 68 | Harry Asher | 1 | son | — | New Jersey |
| 69 | Frank Mares | 40 | head | Lawyer | New Jersey |
| 70 | Mildred Mares | 36 | sister | Secretary | New York |
| 71 | Isabel Mares | 9 | daughter | — | New Jersey |
| 72 | Walter K. Skyler | 35 | head | Superintendent | New York |
| 73 | Elizabeth Skyler | 29 | wife | — | Rhode Island |
| 74 | Mary Stadelman | 55 | head | — | Massachusetts |
| 75 | Helen Stadelman | 21 | daughter | Secretary | New Jersey |
| 76 | Charles H. Conrad | 66 | head | Salesman | New Jersey |
| 77 | Meta J. Conrad | 43 | wife | — | New York |
| 78 | Francis J. Cahill | 23 | head | Asst. Engineer | Massachusetts |
| 79 | Harry J. Cahill | 24 | lodger | Chemist | Massachusetts |
| 80 | Emma S. Bailey | 83 | head | — | England |
Related Census Records
Pedigree Summary
Robert + 4 siblings
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)