JH
John Hendricks — 1940 US Census Record
Model Tree available1940 United States Federal Census · Mercer-County, New Jersey
Our Model Tree links this John Hendricks across the 1920, 1930 and 1940 US Censuses in Mercer-County, New Jersey (XGBoost, ~Confirmed), with identified parents Frederick & Margaret — first a son (b.~1911), then head of a 4-person household.
Age 29
b. ~1911
Male
Son
Born: New Jersey
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Mercer-County, New Jersey |
| Surname | Hendricks |
| Given Name | John J |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Trenton City |
| 1935 Residence (County) | Mercer |
| Additional Details | |
| Occupation | Bookkeeper |
| Industry | State |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 982 |
| Highest Grade | H 4 |
| 1935 Residence | Same House |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
| Occupation | Bookkeeper |
| Township / Ward | Trenton City |
| Est. Birth Year | ~1911 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Frederick Hendricks | Son | — | 28 | ~1912 |
| Frederick Hendricks | Head | — | 54 | ~1886 |
| John Hendricks | Son | — | 29 | ~1911 |
| William Hendricks | Son | — | 27 | ~1913 |
Census Appearances
1920
Mercer, New …
Son, age 8
Mercer, New Jersey · implied b. ~1912 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hendricks |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | New York |
| Mother's Birthplace | New Jersey |
| Can Read | No |
| Speaks English | Yes |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1930
Mercer, New …
Son, age 18
Mercer, New Jersey · implied b. ~1912 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hendricks |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | New York |
| Mother's Birthplace | New Jersey |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1940
Mercer-County, New …
Son, age 29
Mercer-County, New Jersey · implied b. ~1911 — 4 household members
| Surname | Hendricks |
| Given Name | John J |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Trenton City |
| 1935 Residence (County) | Mercer |
| Occupation | Bookkeeper |
| Industry | State |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 982 |
| Highest Grade | H 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 Hendricks across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Frederick Hendricks (~0.92 confidence) and mother Margaret Hendricks (~0.92 confidence) and mother Margaret Hendricks (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Frederick Hendricks
b. ~1886
Source father
● Household
· direct · ~0.92
Mother
Margaret Hendricks
b. ~1887
Source mother
● Household
· direct · ~0.92
Mother
Margaret Hendricks
b. ~1889
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Hendricks
Son · 1940 · age 29 · b. ~1911 · New Jersey
★ You are viewing this record
Sibling
Frederick Hendricks
Sibling · 1940 · age 28
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Hendricks
Sibling · 1940 · age 27
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 — Mercer-County, New Jersey
Open full size
1940 US Federal Census — Mercer-County, New Jersey
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02437-00224)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Edward F Krucek | 45 | Head | Foreman | New Jersey |
| 42 | Florentine K Krucek | 45 | Wife | — | New Jersey |
| 43 | Filomena M Krucek | 11 | Daughter | — | New Jersey |
| 44 | Mary A Bohnenberger | 70 | Mother-in-law | — | New Jersey |
| 45 | Nellie Hendricks | 62 | Head | — | New York |
| 46 | Catherine D Hendricks | 35 | Daughter | — | New Jersey |
| 47 | Josephine M Hendricks | 43 | Daughter | Assembler | New Jersey |
| 48 | James J Hendricks | 41 | Son | Laborer | New Jersey |
| 49 | Frederick O Hendricks | 54 | Head | Officer | New York |
| 50 | John J Hendricks THIS PERSON | 29 | Son | Bookkeeper | New Jersey |
| 51 | Frederick O Hendricks | 28 | Son | Finger Printer | New Jersey |
| 52 | William Hendricks | 27 | Son | Shipping Clerk | New Jersey |
| 53 | John J Webber | 47 | Head | Collector And Inspector | Pennsylvania |
| 54 | Anna Webber | 40 | Wife | — | New Jersey |
| 55 | Warren J Webber | 17 | Son | Office Boy | New Jersey |
| 56 | Clifford J Webber | 12 | Son | — | New Jersey |
| 57 | Mary L Hand | 91 | Head | — | New Jersey |
| 58 | Marietta G Hand | 64 | Daughter | Dressmaker | New Jersey |
| 59 | Emma S Gelley | 79 | Sister | — | New Jersey |
| 60 | Ella E Renini | 61 | Head | — | New Jersey |
| 61 | Lulu Renini | 40 | Daughter | Clerk | New Jersey |
| 62 | Ernest M Renini | 48 | Son | Welder | New Jersey |
| 63 | William J Nolan | 42 | Head | Block Cutter | New Jersey |
| 64 | Florence Nolan | 36 | Wife | — | New Jersey |
| 65 | William J Nolan | 17 | Son | Delivery Boy | New Jersey |
| 66 | Edna M Nolan | 14 | Daughter | — | New Jersey |
| 67 | Florence L Nolan | 11 | Daughter | — | New Jersey |
| 68 | Robert L Nolan | 9 | Son | — | New Jersey |
| 69 | Dorothy M Nolan | 6 | Daughter | — | New Jersey |
| 70 | Thomas E Nolan | 2 | Son | — | New Jersey |
| 71 | Joseph P Nolan | 0 | Son | — | New Jersey |
| 72 | Edward L Danduray | 75 | Head | — | New Jersey |
| 73 | Mary L Danduray | 77 | Wife | — | New Jersey |
| 74 | Peter R Danduray | 46 | Son | Foreman | New Jersey |
| 75 | Anna M Danduray | 23 | Granddaughter | Stenographer | New Jersey |
| 76 | Frank H Taylor | 48 | Head | Car Checking | New Jersey |
| 77 | Amanda G Taylor | 49 | Wife | Companion | New Jersey |
| 78 | Frank H Taylor | 15 | Son | — | New Jersey |
| 79 | James H Taylor | 72 | Brother | Packer | New Jersey |
| 80 | Nettie E Taylor | 69 | Mother | — | New Jersey |
Pedigree Summary
John + 2 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)