RT
Ralph Thomas — 1940 US Census Record
Model Tree available1940 United States Federal Census · Nassau-County, New York
Our Model Tree links this Ralph Thomas across the 1920, 1930 and 1940 US Censuses in Nassau-County, New York (XGBoost, ~Confirmed), with identified parents Sylvester & Hyacinth — first a head (b.~1910), then head of a 3-person household.
Age 30
b. ~1910
Male
Head
Born: New York
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Nassau-County, New York |
| Surname | Thomas |
| Given Name | Ralph |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | New York |
| 1935 Residence (City) | Bronx |
| Additional Details | |
| Occupation | Service Man |
| Industry | Electric |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1976 |
| Highest Grade | H-2 |
| 1935 Residence | New York |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
| Occupation | Service Man |
| Township / Ward | New Hyde Park Village |
| Est. Birth Year | ~1910 |
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 Ralph | Age | Birth yr |
|---|---|---|---|---|
| Nancy Thomas | Daughter | — | 7 | ~1933 |
| Ralph Thomas | Head | — | 30 | ~1910 |
| Clara Thomas | Spouse | — | 30 | ~1910 |
Census Appearances
1920
New York, …
Son, age 10
New York, New York · implied b. ~1910 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Ralph |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | Italy |
| Mother's Birthplace | New York |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1930
Queens, New …
Son, age 20
Queens, New York · implied b. ~1910 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Ralph |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | Italy |
| Mother's Birthplace | New York |
| Occupation | Stock Clerk |
| Industry | U.S. Rubber Co. |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1940
Nassau-County, New …
Head, age 30
Nassau-County, New York · implied b. ~1910 — 3 household members
| Surname | Thomas |
| Given Name | Ralph |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | New York |
| 1935 Residence (City) | Bronx |
| Occupation | Service Man |
| Industry | Electric |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1976 |
| Highest Grade | H-2 |
| 1935 Residence | New York |
| 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 Ralph Thomas across 3 US Census years (1920, 1930 and 1940) in 3 locations, using XGBoost record linkage. Identified parents: father Sylvester Thomas (~0.92 confidence) and father Hyacinth Thomas (~0.92 confidence) and mother Alice Thomas (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Sylvester Thomas
b. ~1883
Source father
● Household
· direct · ~0.92
Father
Hyacinth Thomas
b. ~1885
Source father
● Household
· direct · ~0.92
Mother
Alice Thomas
b. ~1886
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Ralph Thomas
Head · 1940 · age 30 · b. ~1910 · New York
★ 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 — Nassau-County, New York
Open full size
1940 US Federal Census — Nassau-County, New York
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02683-00774)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Ralph Thomas THIS PERSON | 30 | Head | Service Man | New York |
| 2 | Clara Thomas | 30 | Wife | — | New York |
| 3 | Nancy Thomas | 7 | Daughter | — | New York |
| 4 | Henry Brinkers | 32 | Head | Waiter | Holland |
| 5 | Margaret Brinkers | 32 | Wife | — | New York |
| 6 | Henry Brinkers | 8 | Son | — | New York |
| 7 | Saundra Brinkers | 4 | Daughter | — | New York |
| 8 | Werner Kaufmann | 40 | Head | Commercial Artist | Switzerland |
| 9 | Marietta Kaufmann | 41 | Wife | — | Switzerland |
| 10 | Silvia Kaufmann | 9 | Daughter | — | New York |
| 11 | Ruth Kaufmann | 5 | Daughter | — | New York |
| 12 | Frank Wulforst | 47 | Head | — | New York |
| 13 | Mary Wulforst | 49 | Wife | — | New York |
| 14 | Frank Wulforst | 24 | Son | New Worker | New York |
| 15 | John Wulforst | 20 | Son | — | New York |
| 16 | Frank Wulforst | 18 | Son | — | New York |
| 17 | Patricia Wulforst | 17 | Daughter | — | New York |
| 18 | Doris Wulforst | 15 | Daughter | — | New York |
| 19 | Robert Wulforst | 14 | Son | — | New York |
| 20 | Karl Eliassow | 44 | Head | Cable Splicer | Finland |
| 21 | Edith Eliassow | 45 | Wife | — | Finland |
| 22 | Norman Eliassow | 14 | Son | — | New York |
| 23 | Donald G. Eliassow | 6 | Son | — | New York |
| 24 | Karl Adams | 57 | Head | Machinist | Austria |
| 25 | Maria Adams | 55 | Wife | — | Austria |
| 26 | Charles Adams | 33 | Son | Plumber | Austria |
| 27 | Pauline Adams | 29 | Daughter | Bookkeeper | Austria |
| 28 | John Ohtrogge | 41 | Head | Counter Clerk | Germany |
| 29 | Elizabeth Ohtrogge | 31 | Wife | — | Germany |
| 30 | Audrey Ohtrogge | 5 | Daughter | — | New York |
| 31 | Frank Deltalocca | 50 | Head | Track Repairman | Italy |
| 32 | Giovannina Deltalocca | 46 | Wife | — | Italy |
| 33 | Emilia Deltalocca | 21 | Daughter | — | New York |
| 34 | Paul Pocera | 28 | Head | Cement Worker | New York |
| 35 | Lucy Pocera | 24 | Wife | — | New York |
| 36 | Josephine Pocera | 2 | Daughter | — | New York |
| 37 | Frank Pocera | 0 | Son | — | New York |
| 38 | Frank Riosca | 38 | Head | Plumber | New York |
| 39 | Alice Riosca | 38 | Wife | — | New York |
| 40 | Helen Riosca | 11 | Daughter | — | New York |
Pedigree Summary
Ralph
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)