RT
Robert Thomas — 1940 US Census Record
Model Tree available1940 United States Federal Census · Fayette-County, Pennsylvania
Our Model Tree links this Robert Thomas across the 1910, 1920, 1930 and 1940 US Censuses in Fayette-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents Loy & Lloyd — first a head (b.~1899), then head of a 4-person household.
Age 41
b. ~1899
Male
Head
Born: Pennsylvania
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Fayette-County, Pennsylvania |
| Surname | Thomas |
| Given Name | Robert L |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 41 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Percy |
| 1935 Residence (County) | Fayette |
| Additional Details | |
| Occupation | Teacher |
| Industry | Public School |
| Class of Worker | GW |
| Hours Worked | 40 |
| Income (1939) | 1400 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same home |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Teacher |
| Township / Ward | Percy |
| Est. Birth Year | ~1899 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Roberta Thomas | Daughter | — | 18 | ~1922 |
| Robert Thomas | Head | — | 41 | ~1899 |
| Robert Thomas | Son | — | 8 | ~1932 |
| Elizabeth Thomas | Spouse | — | 43 | ~1897 |
Census Appearances
1910
Fayette, Pennsylvania
Son, age 11
Fayette, Pennsylvania · implied b. ~1899 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Robert L |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1920
Fayette, Pennsylvania
Son, age 20
Fayette, Pennsylvania · implied b. ~1900 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Robert L |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Trucker |
| Industry | Brick Yard |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Fayette, Pennsylvania
Head, age 31
Fayette, Pennsylvania · implied b. ~1899 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Robert L. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Age at First Marriage | 22 |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Teacher |
| Industry | Public School |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 10 |
| Radio Set | R |
| Veteran | No |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Fayette-County, Pennsylvania
Head, age 41
Fayette-County, Pennsylvania · implied b. ~1899 — 4 household members
| Surname | Thomas |
| Given Name | Robert L |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 41 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Percy |
| 1935 Residence (County) | Fayette |
| Occupation | Teacher |
| Industry | Public School |
| Class of Worker | GW |
| Hours Worked | 40 |
| Income (1939) | 1400 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same home |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
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 Robert Thomas across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Loy Thomas (~0.92 confidence) and father Lloyd Thomas (~0.92 confidence) and mother Blanch Thomas (~0.92 confidence) and mother Blanch Thomas (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Loy Thomas
b. ~1870
Source father
● Household
· direct · ~0.92
Father
Lloyd Thomas
b. ~1873
Source father
● Household
· direct · ~0.92
Mother
Blanch Thomas
b. ~1878
Source mother
● Household
· direct · ~0.92
Mother
Blanch Thomas
b. ~1873
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Thomas
Head · 1940 · age 41 · b. ~1899 · Pennsylvania
★ 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 — Fayette-County, Pennsylvania
Open full size
1940 US Federal Census — Fayette-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03506-00094)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Helen Dehnert|Dehnertt | 41 | Daughter | Teacher | Pennsylvania |
| 2 | Nellie Dehnert|Dehnertt | 34 | Daughter | Teacher | Pennsylvania |
| 3 | Jean Francis | 14 | Daughter | — | Pennsylvania |
| 4 | Lalite Anderson | 18 | Daughter | New Worker | Pennsylvania |
| 5 | John O Means | 64 | Head | Teacher | Pennsylvania |
| 6 | Robert L Thomas THIS PERSON | 41 | Head | Teacher | Pennsylvania |
| 7 | Elizabeth Thomas | 43 | Wife | — | Pennsylvania |
| 8 | Roberta Thomas | 18 | Daughter | New Worker | Pennsylvania |
| 9 | Robert Thomas | 8 | Son | — | Pennsylvania |
| 10 | Lloyd Thomas | 70 | Head | — | Maryland |
| 11 | Blanche Thomas | 64 | Wife | — | Pennsylvania |
| 12 | Althea Thomas | 36 | Daughter | — | Pennsylvania |
| 13 | George Osborne | 35 | Roomer | Laborer | Pennsylvania |
| 14 | Joseph Seflarsky | 50 | Head | Loader | Poland |
| 15 | Victoria Seflarsky | 45 | Wife | — | Hungary |
| 16 | Joseph Seflarsky | 20 | Son | Stock Man | Pennsylvania |
| 17 | Betty Seflarsky | 12 | Daughter | — | Pennsylvania |
| 18 | John Mehall | 74 | Head | — | Slovakia |
| 19 | Andrew Mehall | 33 | Son | Salesman | Pennsylvania |
| 20 | Jean O Mehall | 26 | Daughter-in-law | — | Pennsylvania |
| 21 | Andrew Jr Mehall | 2 | Son | — | Pennsylvania |
| 22 | Steve Mehall | 30 | Son | Cashier | Pennsylvania |
| 23 | Margaret Stephan | 18 | Daughter | New Worker | Pennsylvania |
| 24 | Sibyl Means | 67 | Head | — | Pennsylvania |
| 25 | Eleanor Means | 36 | Daughter | — | Pennsylvania |
| 26 | Sadie Fordyce | 73 | Head | — | West Virginia |
| 27 | William C Means | 37 | Head | Brakeman | Pennsylvania |
| 28 | Goldie M Means | 28 | Wife | — | West Virginia |
| 29 | Marjorie Messenger | 22 | Sister-in-law | New Worker | West Virginia |
| 30 | William Hardman | 57 | Head | Proprietor | Pennsylvania |
| 31 | Abigail Hardman | 47 | Wife | — | Pennsylvania |
| 32 | John Evancheck | 26 | Head | Miner | Pennsylvania |
| 33 | Elizabeth Evancheck | 24 | Sister | — | Pennsylvania |
| 34 | Mike Evancheck | 25 | Brother | Laborer | Pennsylvania |
| 35 | Margaret Evancheck | 17 | Sister | New Worker | Pennsylvania |
| 36 | Thomas Landman | 55 | Head | Machine Runner | Pennsylvania |
| 37 | Mary Landman | 52 | Wife | Cutting Machine | Scotland |
| 38 | Dora Landman | 17 | Daughter | New Worker | Pennsylvania |
| 39 | Thomas Jr Conroy | 30 | Head | Miner | Pennsylvania |
| 40 | Mary Ellen Conroy | 21 | Wife | New Worker | Pennsylvania |
Pedigree Summary
Robert
Gen 1 · 4 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)