HT
Helen Thomas — 1940 US Census Record
Model Tree available1940 United States Federal Census · Mahoning-County, Ohio
Our Model Tree links this Helen Thomas across the 1920, 1930 and 1940 US Censuses in Mahoning-County, Ohio (XGBoost, ~Confirmed), with identified parents Anna & Patrick — first a daughter (b.~1916), then head of a 8-person household.
Age 24
b. ~1916
Female
Daughter
Born: Ohio
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Mahoning-County, Ohio |
| Surname | Thomas |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Youngstown |
| 1935 Residence (County) | Mahoning |
| Additional Details | |
| Highest Grade | H-2 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Township / Ward | Youngstown |
| Est. Birth Year | ~1916 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Helen | Age | Birth yr |
|---|---|---|---|---|
| Helen Thomas | Daughter | — | 24 | ~1916 |
| Peter Thomas | Head | — | 52 | ~1888 |
| Joseph Pincinico | Other | — | ~1940 | |
| Anthony Pincinico | Other | — | 26 | ~1914 |
| Camilla Pincinico | Other | — | 2 | ~1938 |
| Lilly Pincinico | Other | — | 21 | ~1919 |
| Peter Thomas | Son | — | 19 | ~1921 |
| Angeline Thomas | Spouse | — | 50 | ~1890 |
Census Appearances
1920
Mahoning, Ohio
Daughter, age 3
Mahoning, Ohio · implied b. ~1917 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Italy |
| Mother's Birthplace | Italy |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1930
Mahoning, Ohio
Daughter, age 13
Mahoning, Ohio · implied b. ~1917 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Italy |
| Mother's Birthplace | Italy |
| Can Read/Write | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Mahoning-County, Ohio
Daughter, age 24
Mahoning-County, Ohio · implied b. ~1916 — 8 household members
| Surname | Thomas |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Youngstown |
| 1935 Residence (County) | Mahoning |
| Highest Grade | H-2 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
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 Thomas across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Anna Thomas (~0.92 confidence) and father Patrick Thomas (~0.92 confidence) and father Patsy Thomas (~0.92 confidence) and father Peter Thomas (~0.92 confidence) and mother Angeline Thomas (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Anna Thomas
b. ~1886
Source mother
● Household
· direct · ~0.92
Father
Patrick Thomas
b. ~1888
Source father
● Household
· direct · ~0.92
Father
Patsy Thomas
b. ~1888
Source father
● Household
· direct · ~0.92
Father
Peter Thomas
b. ~1888
Source father
● Household
· direct · ~0.92
Mother
Angeline Thomas
b. ~1890
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Helen Thomas
Daughter · 1940 · age 24 · b. ~1916 · Ohio
★ You are viewing this record
Sibling
Peter Thomas
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 — Mahoning-County, Ohio
Open full size
1940 US Federal Census — Mahoning-County, Ohio
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03268-00600)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John Reator | 39 | Head | Butt Welder | Wisconsin |
| 2 | Anna Reator | 58 | Mother | — | Wisconsin |
| 3 | Louis Reator | 36 | Brother | Line Man | Minnesota |
| 4 | George Rector | 26 | Head | Attendant | Minnesota |
| 5 | Rose Rector | 22 | Wife | Waitress | Ohio |
| 6 | Peter Thomas | 52 | Head | Laborer | Italy |
| 7 | Angeline Thomas | 50 | Wife | — | Italy |
| 8 | Helen Thomas THIS PERSON | 24 | Daughter | — | Ohio |
| 9 | Peter Jr. (At) Thomas | 19 | Son | — | Ohio |
| 10 | Anthony Pincinico | 26 | Step son | Craneman | Massachusetts |
| 11 | Lilly Pincinico | 21 | Daughter in law | — | Ohio |
| 12 | Camilla Pincinico | 2 | Grand daughter | — | Ohio |
| 13 | Joseph Pincinico | 0 | Grand son | — | Ohio |
| 14 | Harry Q. Matthews | 59 | Head | Stoker | England |
| 15 | Margaret Matthews | 59 | Wife | — | Ohio |
| 16 | Martha Matthews | 20 | Daughter | Saleslady | Ohio |
| 17 | Vera Bonner | 28 | Daughter | Asst Order Cook | Ohio |
| 18 | A. Margaret Bonner | 9 | Grand daughter | — | Ohio |
| 19 | William Bonner | 8 | Grand son | — | Ohio |
| 20 | James Dunkin | 36 | Head | Shipping Clerk | New York |
| 21 | Aldean Dunkin | 32 | Wife | — | Pennsylvania |
| 22 | Patricia Ann Dunkin | 5 | Daughter | — | Ohio |
| 23 | Robert Dunkin | 4 | Son | — | Ohio |
| 24 | James Gregory | 40 | Head | Shearman | Pennsylvania |
| 25 | Mary Gregory | 41 | Wife | — | Pennsylvania |
| 26 | Leanora Gregory | 20 | Daughter | Secretary | Pennsylvania |
| 27 | Harold Gregory | 16 | Son | — | Pennsylvania |
| 28 | Sally Varner | 48 | Sister in law | — | Pennsylvania |
| 29 | Carl Edward Guinther | 48 | Head | Packer | Pennsylvania |
| 30 | Katherine Guinther | 39 | Wife | — | Ohio |
| 31 | Carl Edward Guinther | 19 | Son | New Worker | Ohio |
| 32 | Ruth Arleen Guinther | 16 | Daughter | — | Ohio |
| 33 | Sara Guinther | 86 | Mother | — | Pennsylvania |
| 34 | John Guinther | 65 | Brother | Machinist Helper | Pennsylvania |
| 35 | Eugene Garrison | 24 | Head | Crane Follower | Pennsylvania |
| 36 | Elizabeth Garrison | 22 | Wife | — | Pennsylvania |
| 37 | Winifred Dunn | 65 | Head | — | Ireland |
| 38 | John Dunn | 42 | Son | Brakeman | New York |
| 39 | William T. Dunn | 45 | Son | Laborer | New York |
| 40 | Charles E. Naper | 72 | Lodger | — | Ohio |
Pedigree Summary
Helen + 1 sibling
Gen 1 · 5 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)