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Helen Davis — 1940 US Census Record
Model Tree available1940 United States Federal Census · New-York-County, New York
Our Model Tree links this Helen Davis across the 1920, 1930 and 1940 US Censuses in New-York-County, New York (XGBoost, ~Confirmed), with identified parents Bridget & Patrick — first a daughter (b.~1914), then head of a 6-person household.
Age 26
b. ~1914
Female
Daughter
Born: New York
Widowed
1940 Census Record Details
| Census Year | 1940 |
| Location | New-York-County, New York |
| Surname | Davis |
| Given Name | Helen |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 26 |
| Marital Status | Widowed |
| Birthplace | New York |
| 1935 Residence (City) | New York City |
| 1935 Residence (County) | New York |
| Additional Details | |
| Highest Grade | No 8 |
| 1935 Residence | Same Place |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
| Township / Ward | New York 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 Helen | Age | Birth yr |
|---|---|---|---|---|
| Helen Davis | Daughter | — | 26 | ~1914 |
| Patrick O'Connor | Head | — | 54 | ~1886 |
| Thomas Davis | Other | — | 3 | ~1937 |
| James O'Connor | Son | — | 22 | ~1918 |
| Jerry O'Connor | Son | — | 19 | ~1921 |
| Bridget O'Connor | Spouse | — | 59 | ~1881 |
Census Appearances
1920
Kings, New …
Other, age 6
Kings, New York · implied b. ~1914 — 50 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davis |
| Given Name | Helen |
| Relationship to Head | Inmate |
| Sex | F |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1930
New York, …
Other, age 16
New York, New York · implied b. ~1914 — 49 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davis |
| Given Name | Helen |
| Relationship to Head | Lodger |
| Sex | F |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Occupation | File clerk |
| Industry | Chemical Co. |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1940
New-York-County, New …
Daughter, age 26
New-York-County, New York · implied b. ~1914 — 6 household members
| Surname | Davis |
| Given Name | Helen |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 26 |
| Marital Status | Widowed |
| Birthplace | New York |
| 1935 Residence (City) | New York City |
| 1935 Residence (County) | New York |
| Highest Grade | No 8 |
| 1935 Residence | Same Place |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
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 3 locations, using XGBoost record linkage. Identified parents: mother Bridget O'Connor (~0.92 confidence) and father Patrick O'Connor (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Bridget O'Connor
b. ~1881
Source mother
● Household
· direct · ~0.92
Father
Patrick O'Connor
b. ~1886
Source father
● Household
· direct · ~0.92
This person
Anchor record
Helen Davis
Daughter · 1940 · age 26 · b. ~1914 · New York
★ You are viewing this record
Sibling
James O'Connor
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jerry O'Connor
Sibling · 1940 · age 19
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 — New-York-County, New York
Open full size
1940 US Federal Census — New-York-County, New York
Page Contents
33 people indexed on this census page (nara:1940:m-t0627-02633-00487)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 48 | Mat J. Vacht | 59 | Head | Dry Goods Store | Roumania |
| 49 | Betty Vacht | 50 | Wife | — | Roumania |
| 50 | Sylvia Vacht | 20 | daughter | — | New York |
| 51 | Rosalie Vacht | 14 | daughter | — | New York |
| 52 | Alice Murphy | 57 | Head | — | New York |
| 53 | Lawrence Murphy | 29 | Son | Clerk | New York |
| 54 | Alice Murphy | 25 | daughter | Telephone Opr. | New York |
| 55 | Helen Murphy | 17 | daughter | — | New York |
| 56 | Michele Proscia | 22 | Head | Dry Cleaner | New York |
| 57 | Rose Proscia | 24 | Sister | Book Binder | New York |
| 58 | Frances Proscia | 19 | Sister | Sewing | New York |
| 59 | Angelina Proscia | 18 | Sister | — | New York |
| 60 | Catherine Proscia | 54 | Mother | — | Italy |
| 61 | Emile Leininger | 57 | Head | Kitchenman | France |
| 62 | Mary Leininger | 43 | Wife | — | France |
| 63 | Bertha Fritzschler | 30 | Stepdaughter | Governess | New York |
| 64 | Helen Fritzschler | 26 | Stepdaughter | Clerk | New York |
| 65 | Patrick Murphy | 53 | Head | Laborer | New York |
| 66 | Lillie Murphy | 50 | Wife | — | New York |
| 67 | Anna May Murphy | 23 | daughter | — | New York |
| 68 | Edward Parkinson | 53 | Head | Deputy Collector | New York |
| 69 | Alice Parkinson | 55 | Wife | — | New York |
| 70 | B. De Luca | 43 | Head | Fish Store Owner | Italy |
| 71 | John Riley | 61 | Head | — | New York |
| 72 | Catherine Riley | 60 | Wife | Attendant | New York |
| 73 | Katherine Lully | 53 | Head | Attendant | New York |
| 74 | Patrick O'Connor | 54 | Head | Laborer | Eire |
| 75 | Bridget O'Connor | 59 | Wife | — | Eire |
| 76 | James O'Connor | 22 | Son | Messenger | New York |
| 77 | Jerry O'Connor | 19 | Son | — | New York |
| 78 | Helen Davis THIS PERSON | 26 | daughter | — | New York |
| 79 | Thomas Davis | 3 | Grandson | — | New York |
| 80 | Catherine Marich | 50 | Head | — | Austria |
Pedigree Summary
Helen + 2 siblings
Gen 1 · 2 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)