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Helen Harris — 1940 US Census Record
Model Tree available1940 United States Federal Census · Mercer-County, New Jersey
Our Model Tree links this Helen Harris across the 1920, 1930 and 1940 US Censuses in Mercer-County, New Jersey (XGBoost, ~Confirmed), with identified parents Cora & Robert — first a daughter (b.~1917), then head of a 3-person household.
Age 23
b. ~1917
Female
Daughter
Born: New Jersey
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Mercer-County, New Jersey |
| Surname | Harris |
| Given Name | Helen |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Trenton City |
| 1935 Residence (County) | Mercer |
| Additional Details | |
| Occupation | Personal Secretary |
| Industry | NJ State Board of Health |
| Class of Worker | GW |
| Hours Worked | 40 |
| Income (1939) | 980 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same house |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
| Occupation | Personal Secretary |
| Township / Ward | Trenton 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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Helen | Age | Birth yr |
|---|---|---|---|---|
| Helen Harris | Daughter | — | 23 | ~1917 |
| Robert Harris | Head | — | 54 | ~1886 |
| Cora Harris | Spouse | — | 51 | ~1889 |
Census Appearances
1920
Mercer, New …
Daughter, age 4
Mercer, New Jersey · implied b. ~1916 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Harris |
| Given Name | Helen J. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | New Jersey |
| Mother's Birthplace | New Jersey |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1930
Mercer, New …
Daughter, age 14
Mercer, New Jersey · implied b. ~1916 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Harris |
| Given Name | Helen J. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | New Jersey |
| Mother's Birthplace | New Jersey |
| Can Read/Write | Yes |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1940
Mercer-County, New …
Daughter, age 23
Mercer-County, New Jersey · implied b. ~1917 — 3 household members
| Surname | Harris |
| Given Name | Helen |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Trenton City |
| 1935 Residence (County) | Mercer |
| Occupation | Personal Secretary |
| Industry | NJ State Board of Health |
| Class of Worker | GW |
| Hours Worked | 40 |
| Income (1939) | 980 |
| Highest Grade | Hs 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 Helen Harris across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Cora Harris (~0.92 confidence) and father Robert Harris (~0.92 confidence) and mother Cora Harris (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Cora Harris
b. ~1884
Source mother
● Household
· direct · ~0.92
Father
Robert Harris
b. ~1886
Source father
● Household
· direct · ~0.92
Mother
Cora Harris
b. ~1889
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Helen Harris
Daughter · 1940 · age 23 · b. ~1917 · 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 — 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-t0627-02437-00365)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Luella Gano | 65 | wife | — | New Jersey |
| 42 | Samuel Ponic | 63 | head | Court Clerk | England |
| 43 | Sarah Ponic | 62 | wife | — | England |
| 44 | Ethel Ponic | 40 | daughter | Medical Doctor | New Jersey |
| 45 | Russell Ponic | 38 | son | — | New Jersey |
| 46 | Walker Kripner | 49 | head | — | New Jersey |
| 47 | Edith Kripner | 43 | wife | — | New Jersey |
| 48 | Edith Kripner | 17 | daughter | — | New Jersey |
| 49 | John Miller | 38 | Step son | Night Attendant | New Jersey |
| 50 | Mary Miller | 38 | Step daughter-in-law | — | New Jersey |
| 51 | Walter Miller | 17 | Step Grand son | — | Pennsylvania |
| 52 | Charles Miller | 13 | Step Grand son | — | California |
| 53 | Forrest Miller | 8 | Step Grand son | — | New Jersey |
| 54 | John Kripner | 48 | brother | Baker | New Jersey |
| 55 | Louis Ruderman | 42 | head | Traveling Salesman | Russia |
| 56 | Gertrude Ruderman | 36 | wife | — | New Jersey |
| 57 | Armand Ruderman | 12 | son | — | New Jersey |
| 58 | Joseph Ruderman | 5 | son | — | New Jersey |
| 59 | Mark Ruderman | 3 | son | — | New Jersey |
| 60 | William Hamilton | 58 | head | Foreman Of Dept | Delaware |
| 61 | Hazel Hamilton | 51 | wife | — | New Jersey |
| 62 | Edward Kirk | 54 | brother-in-law | Foreman Of Dept | New Jersey |
| 63 | Deborah Kirk | 74 | mother-in-law | — | England |
| 64 | John Kemp | 33 | head | Administrative Assistant | Idaho |
| 65 | Helena Kemp | 26 | wife | — | New Jersey |
| 66 | John Kemp | 3 | son | — | New Jersey |
| 67 | James Kemp | 0 | son | — | New Jersey |
| 68 | Elizabeth Conklin | 87 | head | — | Connecticut |
| 69 | Elizabeth Golding | 63 | lodger | — | New Jersey |
| 70 | Almada Hearn | 55 | maid | Maid | Virginia |
| 71 | Robert Harris | 54 | head | Mechanical Engineer | New Jersey |
| 72 | Cora Harris | 51 | wife | — | New Jersey |
| 73 | Helen Harris THIS PERSON | 23 | daughter | Personal Secretary | New Jersey |
| 74 | William Krewson | 37 | head | Proprietor | New Jersey |
| 75 | Elair Krewson | 36 | wife | — | New Jersey |
| 76 | Grace Krewson | 16 | daughter | — | New Jersey |
| 77 | William Krewson | 13 | son | — | New Jersey |
| 78 | Elair Krewson | 10 | daughter | — | New Jersey |
| 79 | John Haney | 29 | lodger | — | New Jersey |
| 80 | Robert Millman | 36 | head | Chief District Manager | Maryland |
Pedigree Summary
Helen
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)