RD
Robert Davis — 1940 US Census Record
Model Tree available1940 United States Federal Census · Hudson-County, New Jersey
Our Model Tree links this Robert Davis across the 1920, 1930 and 1940 US Censuses in Hudson-County, New Jersey (XGBoost, ~Confirmed), with identified parents Robert & Robert — first a son (b.~1900), then head of a 7-person household.
Age 40
b. ~1900
Male
Son
Born: New Jersey
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Hudson-County, New Jersey |
| Surname | Davis |
| Given Name | Robert Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Jersey City |
| 1935 Residence (County) | Hudson |
| Additional Details | |
| Hours Worked | 0 |
| Income (1939) | 0 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
| Township / Ward | Jersey 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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Marguerite Davis | Daughter | — | 48 | ~1892 |
| Bella Davis | Daughter | — | 50 | ~1890 |
| Grace Davis | Daughter | — | 22 | ~1918 |
| Robert Davis | Head | — | 73 | ~1867 |
| Raymond Davis | Son | — | 26 | ~1914 |
| Robert Davis | Son | — | 40 | ~1900 |
| Raymond Davis | Son | — | 32 | ~1908 |
Census Appearances
1920
Hudson, New …
Son, age 19
Hudson, New Jersey · implied b. ~1901 — 12 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davis |
| Given Name | Robert Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | New Jersey |
| Mother's Birthplace | New York |
| Occupation | Clerk |
| Industry | Railroad Co. |
| 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 …
Son, age 30
Hudson, New Jersey · implied b. ~1900 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davis |
| Given Name | Robert Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | New Jersey |
| Mother's Birthplace | New Jersey |
| Occupation | Conductor |
| Industry | Railroad |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | Yes |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1940
Hudson-County, New …
Son, age 40
Hudson-County, New Jersey · implied b. ~1900 — 7 household members
| Surname | Davis |
| Given Name | Robert Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Jersey City |
| 1935 Residence (County) | Hudson |
| Hours Worked | 0 |
| Income (1939) | 0 |
| Highest Grade | H 4 |
| 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 Robert Davis across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Robert Davis (~0.92 confidence) and father Robert Davis (~0.92 confidence) and mother Catherine Davis (~0.92 confidence) and mother Catherine Davis (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Robert Davis
b. ~1865
Source father
● Household
· direct · ~0.92
Father
Robert Davis
b. ~1862
Source father
● Household
· direct · ~0.92
Mother
Catherine Davis
b. ~1858
Source mother
● Household
· direct · ~0.92
Mother
Catherine Davis
b. ~1878
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Davis
Son · 1940 · age 40 · b. ~1900 · New Jersey
★ You are viewing this record
Sibling
Raymond Davis
Sibling · 1940 · age 32
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Raymond Davis
Sibling · 1940 · age 26
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Grace Davis
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Marguerite Davis
Sibling · 1940 · age 48
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Bella Davis
Sibling · 1940 · age 50
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
39 people indexed on this census page (nara:1940:m-t0627-02409-00659)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Annette Mullins | 33 | Daughter | Clerk | New Jersey |
| 2 | Thomas Dunnigan | 61 | Head | Laborer | New Jersey |
| 3 | Thomas Dunnigan | 36 | Son | Driver | New Jersey |
| 4 | Thomas Tarrant | 65 | Head | Janitor | Ireland |
| 5 | Mary Tarrant | 66 | Wife | — | New York |
| 6 | Edmund Tarrant | 32 | Son | Tester | New Jersey |
| 7 | Daniel Tarrant | 29 | Son | Carpenter | New Jersey |
| 8 | John Tarrant | 24 | Son | — | New Jersey |
| 9 | Thomas Tarrant | 22 | Son | Laborer | New Jersey |
| 10 | Lawrence Hyle | 25 | Lodger | Welder | New Jersey |
| 11 | Robert Davis | 73 | Head | — | New Jersey |
| 12 | Robert Jr. Davis THIS PERSON | 40 | Son | — | New Jersey |
| 13 | Bella Davis | 50 | Daughter | Clerk | New Jersey |
| 14 | Marguerite Davis | 48 | Daughter | Clerk | New Jersey |
| 15 | Raymond Davis | 32 | Son | — | New Jersey |
| 16 | Raymond Davis | 26 | Son | — | New Jersey |
| 17 | Grace Davis | 22 | Daughter | — | New Jersey |
| 18 | Mary Shea | 66 | Head | — | New York |
| 19 | Annette King | 55 | Head | — | New Jersey |
| 20 | Willie King | 61 | Brother | — | New Jersey |
| 21 | George Coely | 22 | Cousin | Accountant | New Jersey |
| 22 | Alfred Tomkins | 56 | Head | Foreman | England |
| 23 | Anna Tomkins | 44 | Wife | — | New Jersey |
| 24 | Alfred Tomkins | 23 | Son | — | New Jersey |
| 25 | Nicholas De Benedetto | 59 | Head | — | Italy |
| 26 | Anna De Benedetto | 51 | Wife | — | New Jersey |
| 27 | Amelia De Benedetto | 27 | Daughter | — | New Jersey |
| 28 | Louis De Benedetto | 35 | Son | Barber | New Jersey |
| 29 | Alphonse De Benedetto | 32 | Son | Barber | New Jersey |
| 30 | Anthony Mulligan | 54 | Head | Asst. Supervisor | New Jersey |
| 31 | Mary Mulligan | 50 | Wife | — | New York |
| 32 | Joan Mulligan | 18 | Daughter | — | New Jersey |
| 33 | Madelyn Mulligan | 14 | Daughter | — | New Jersey |
| 34 | Doris Mulligan | 11 | Daughter | — | New Jersey |
| 35 | Michael Ullrich | 38 | Head | Store Clerk | New Jersey |
| 36 | Angelina Ullrich | 38 | Wife | — | New Jersey |
| 37 | Clement Ullrich | 15 | Son | — | New Jersey |
| 38 | Philip Ullrich | 12 | Son | — | New Jersey |
| 39 | Rosemarie Ullrich | 3 | Daughter | — | New York |
Pedigree Summary
Robert + 5 siblings
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)