JH
John Hopkins — 1940 US Census Record
Model Tree available1940 United States Federal Census · Union-County, New Jersey
Our Model Tree links this John Hopkins across the 1920, 1930 and 1940 US Censuses in Union-County, New Jersey (XGBoost, ~Confirmed), with identified parents Amos & Mary — first a son (b.~1914), then head of a 6-person household.
Age 26
b. ~1914
Male
Son
Born: New Jersey
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Union-County, New Jersey |
| Surname | Hopkins |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Elizabeth city |
| 1935 Residence (County) | Union |
| Additional Details | |
| Occupation | Bookkeeper |
| Industry | Advertising |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 640 |
| Highest Grade | C 4 |
| 1935 Residence | Same House |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
| Occupation | Bookkeeper |
| Township / Ward | Elizabeth City |
| Est. Birth Year | ~1914 |
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 John | Age | Birth yr |
|---|---|---|---|---|
| Marcella Hopkins | Daughter | — | 23 | ~1917 |
| Elizabeth Hopkins | Daughter | — | 15 | ~1925 |
| John Hopkins | Head | — | 53 | ~1887 |
| Robert Hopkins | Son | — | 19 | ~1921 |
| John Hopkins | Son | — | 26 | ~1914 |
| Thomas Hopkins | Son | — | 13 | ~1927 |
Census Appearances
1920
Union, New …
Son, age 6
Union, New Jersey · implied b. ~1914 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hopkins |
| Given Name | John A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | New Jersey |
| Mother's Birthplace | New Jersey |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1930
Union, New …
Son, age 16
Union, New Jersey · implied b. ~1914 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hopkins |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | New Jersey |
| Mother's Birthplace | Canada-Eng |
| Can Read/Write | Yes |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1940
Union-County, New …
Son, age 26
Union-County, New Jersey · implied b. ~1914 — 6 household members
| Surname | Hopkins |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Elizabeth city |
| 1935 Residence (County) | Union |
| Occupation | Bookkeeper |
| Industry | Advertising |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 640 |
| 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 John Hopkins across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Amos Hopkins (~0.92 confidence) and mother Mary Hopkins (~0.92 confidence) and father John Hopkins (~0.92 confidence) and mother Mary Hopkins (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Amos Hopkins
b. ~1871
Source father
● Household
· direct · ~0.92
Mother
Mary Hopkins
b. ~1871
Source mother
● Household
· direct · ~0.92
Father
John Hopkins
b. ~1888
Source father
● Household
· direct · ~0.92
Mother
Mary Hopkins
b. ~1889
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Hopkins
Son · 1940 · age 26 · b. ~1914 · New Jersey
★ You are viewing this record
Sibling
Robert Hopkins
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Marcella Hopkins
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Elizabeth Hopkins
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas Hopkins
Sibling · 1940 · age 13
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 — Union-County, New Jersey
Open full size
1940 US Federal Census — Union-County, New Jersey
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02399-00541)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Marie Cook | 40 | Wife | — | New Jersey |
| 2 | John Cook | 13 | Son | — | New Jersey |
| 3 | Jane E. Cook | 11 | Daughter | — | New Jersey |
| 4 | Floyd Cook | 9 | Son | — | New Jersey |
| 5 | Patrick J. O'Connor | 61 | Lodger | Laborer | Eire |
| 6 | Raymond J. Drum | 51 | Head | Proprietor | New Jersey |
| 7 | Anna B. Drum | 44 | Wife | — | Connecticut |
| 8 | T. Douglas Drum | 12 | Son | — | New Jersey |
| 9 | Francis Krick | 50 | Head | Telep. Engineer | Pennsylvania |
| 10 | Elsa Krick | 50 | Wife | — | Illinois |
| 11 | Marianne Krick | 20 | Daughter | New Worker | Illinois |
| 12 | Mabel K. Brooks | 61 | Head | Stenographer | Massachusetts |
| 13 | Anna G. Brooks | 51 | Sister | Secretary | Massachusetts |
| 14 | Olive F. Brooks | 89 | Mother | — | New York |
| 15 | Alberta Taylor | 36 | Maid | Housekeeper | Virginia |
| 16 | John M. Hopkins | 53 | Head | Stock Broker | New Jersey |
| 17 | John Hopkins THIS PERSON | 26 | Son | Bookkeeper | New Jersey |
| 18 | Marcella Hopkins | 23 | Daughter | Secretary | New Jersey |
| 19 | Robert Hopkins | 19 | Son | — | New Jersey |
| 20 | Elizabeth Hopkins | 15 | Daughter | — | New Jersey |
| 21 | Thomas Hopkins | 13 | Son | — | New Jersey |
| 22 | Theodore M. Hanlon | 51 | Head | Salesman | New York |
| 23 | Metta Hanlon | 50 | Wife | — | New York |
| 24 | Jean Hanlon | 25 | Daughter | Secretary | New York |
| 25 | Theodore Hanlon | 17 | Son | — | New York |
| 26 | Margaret Hanlon | 13 | Daughter | — | New Jersey |
| 27 | Block Hess | 45 | Block | Proprietor | New York |
| 28 | Joseph J. Lehe | 46 | Head | — | New Jersey |
| 29 | Rebecca J. Lehe | 44 | Wife | — | New Jersey |
| 30 | Mary V. Ab Lehe | 19 | Daughter | — | New Jersey |
| 31 | Joseph J. Lehe | 16 | Son | — | New Jersey |
| 32 | Joan Lehe | 14 | Daughter | — | New Jersey |
| 33 | John P. Lehe | 12 | Son | — | New Jersey |
| 34 | Ann Macclay | 27 | Maid | Housekeeper | Scotland |
| 35 | Roy Ross | 46 | Head | Journalism | New Jersey |
| 36 | Louise Ross | 42 | Wife | — | Pennsylvania |
| 37 | Michael J. Mulcahy | 69 | Head | — | New Jersey |
| 38 | Elizabeth Mulcahy | 59 | Wife | — | New Jersey |
| 39 | Kathleen Mulcahy | 27 | Daughter | Stenographer | New Jersey |
| 40 | Edward Mulcahy | 23 | Son | Typist | New Jersey |
Related Census Records
Pedigree Summary
John + 4 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)