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Helen Davis — 1930 US Census Record
Model Tree available1930 United States Federal Census · Mercer, New Jersey
Our Model Tree links this Helen Davis across the 1920, 1930 and 1940 US Censuses in Mercer, New Jersey (XGBoost, ~Confirmed), with identified parents Frank & Mary — first a daughter (b.~1902), then head of a 6-person household.
Age 28
b. ~1902
Female
Daughter
Born: New Jersey
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Mercer, New Jersey |
| Surname | Davis |
| Given Name | Helen E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | New Jersey |
| Mother's Birthplace | New Jersey |
| Additional Details | |
| Occupation | Stenographer |
| Industry | Insurance Co. |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
| Occupation | Stenographer |
| Township / Ward | Lawrence Township |
| Est. Birth Year | ~1902 |
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 1930 census.
| Name | Relation to head | Relative to Helen | Age | Birth yr |
|---|---|---|---|---|
| Anna Davis | Daughter | — | 18 | ~1912 |
| Helen Davis | Daughter | — | 28 | ~1902 |
| Isaiah Davis | Head | — | 59 | ~1871 |
| Ronald Davis | Other | — | 5 | ~1925 |
| Robert Davis | Son | — | 36 | ~1894 |
| Mary Davis | Spouse | — | 60 | ~1870 |
Census Appearances
Daughter, age 17
Mercer, New Jersey · implied b. ~1903 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davis |
| Given Name | Hazel M |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 17 |
| 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
Mercer, New …
Daughter, age 28
Mercer, New Jersey · implied b. ~1902 — 6 household members
| Surname | Davis |
| Given Name | Helen E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | New Jersey |
| Mother's Birthplace | New Jersey |
| Occupation | Stenographer |
| Industry | Insurance Co. |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1940
Mercer-County, New …
Daughter, age 40
Mercer-County, New Jersey · implied b. ~1900 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davis |
| Given Name | Hellen K |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 40 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Lawrence Township |
| 1935 Residence (County) | Mercer |
| Occupation | Bookkeeper |
| Industry | Garage |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1200 |
| 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 Helen Davis across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Frank Davis (~0.92 confidence) and mother Mary Davis (~0.92 confidence) and mother Ella Davis (~0.92 confidence) and father Isaiah Davis (~0.92 confidence) and father Joseph Davis (~0.92 confidence) and mother Almeda Davis (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Frank Davis
b. ~1853
Source father
● Household
· direct · ~0.92
Mother
Mary Davis
b. ~1870
Source mother
● Household
· direct · ~0.92
Mother
Ella Davis
b. ~1870
Source mother
● Household
· direct · ~0.92
Father
Isaiah Davis
b. ~1871
Source father
● Household
· direct · ~0.92
Father
Joseph Davis
b. ~1872
Source father
● Household
· direct · ~0.92
Mother
Almeda Davis
b. ~1876
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Helen Davis
Daughter · 1930 · age 28 · b. ~1902 · New Jersey
★ You are viewing this record
Sibling
Robert Davis
Sibling · 1930 · age 36
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Anna Davis
Sibling · 1930 · age 18
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
1930 US Federal Census — Mercer, New Jersey
Open full size
1930 US Federal Census — Mercer, New Jersey
Page Contents
50 people indexed on this census page (ia:1930:newjerseycensus00reel1362:0661)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Anna Gormley | 66 | Head | — | Pennsylvania |
| 2 | Harvey Gormley | 26 | Son | Rubber Worker | Pennsylvania |
| 3 | Walter E. Stevenson | 67 | Head | Salesman | New Jersey |
| 4 | Ida V. Stevenson | 61 | Wife | — | New Jersey |
| 5 | Laura W. Stevenson | 40 | Daughter | Clerk | New Jersey |
| 6 | Virginia B. Davis | 13 | Daughter | — | New York |
| 7 | Robert W. Davis | 12 | Son | — | New Jersey |
| 8 | Barbara Davis | 2 | Daughter | — | New Jersey |
| 9 | Douglas Barner | 36 | Head | Civil Engineer | New York |
| 10 | Mabel Barner | 29 | Wife | Stenographer | Pennsylvania |
| 11 | William H. Barner | 58 | Father | Retired | New York |
| 12 | Clifford W. Crane | 35 | Head | Printer | New Jersey |
| 13 | Ruth M. Crane | 30 | Wife | — | New Jersey |
| 14 | Ruth E. Crane | 7 | Daughter | — | New Jersey |
| 15 | Donald E. Crane | 1 | Son | — | New Jersey |
| 16 | Mary Crane | 74 | Mother | — | New Jersey |
| 17 | Elizabeth Crane | 37 | Sister | — | New Jersey |
| 18 | Joseph V. Crane | 38 | Brother | Salesman | New Jersey |
| 19 | Isaiah B. Davis | 59 | Head | Miller | New Jersey |
| 20 | Mary E. Davis | 60 | Wife | — | New Jersey |
| 21 | Robert W. Davis | 36 | Son | Salesman | New Jersey |
| 22 | Helen E. Davis THIS PERSON | 28 | Daughter | Stenographer | New Jersey |
| 23 | Anna Davis | 18 | Daughter | — | New Jersey |
| 24 | Ronald B. Davis | 5 | Grandson | — | New Jersey |
| 25 | John M. Francis | 73 | Head | Retired | New Jersey |
| 26 | Rebecca Francis | 64 | Wife | — | New Jersey |
| 27 | Ralph B. Davis | 27 | Head | Civil Engineer | New Jersey |
| 28 | Lillian A. Davis | 29 | Wife | — | New Jersey |
| 29 | William R. Daley | 44 | Head | Machinist | England |
| 30 | Rhoda V. Daley | 44 | Wife | — | England |
| 31 | Clifford H. Prall | 30 | Head | Salesman | New Jersey |
| 32 | E. Prall | 33 | Wife | — | New Jersey |
| 33 | Mary J. Stevens | 66 | Mother-in-law | — | Maryland |
| 34 | Isabelle Prall | 68 | Sister | — | New Jersey |
| 35 | Enock Hansen | 71 | Head | — | Poland |
| 36 | Frederick T. Hansen | 45 | Son | Teacher | Poland |
| 37 | Lewis K. Sneath | 38 | Head | Draftsman | New Jersey |
| 38 | Mildred Sneath | 33 | Wife | — | New Jersey |
| 39 | Raymond Sneath | 14 | Son | — | New Jersey |
| 40 | Edwin S. Sneath | 12 | Son | — | New Jersey |
| 41 | Orville E. July | 31 | Head | Collector | New Jersey |
| 42 | Georgianna July | 32 | Wife | — | New Jersey |
| 43 | George Tindel | 48 | Head | Driver | New Jersey |
| 44 | Susan Tindel | 49 | Wife | Painter | New Jersey |
| 45 | Martha Tindel | 19 | Daughter | — | New Jersey |
| 46 | William L. Nichols | 35 | Head | Teacher | New Jersey |
| 47 | Stephanie M. Nichols | 35 | Wife | Mechanic | New Jersey |
| 48 | Edith S. Nichols | 9 | Daughter | — | New Jersey |
| 49 | Russell J. Barron | 35 | Head | — | New Jersey |
| 50 | Dora Barron | 26 | Wife | — | New Jersey |
Related Census Records
Pedigree Summary
Helen + 2 siblings
Gen 1 · 6 parents
~0.92
Max depth 4 (1900–1950 window)
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)