FT
Frances Thomas — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Worcester-County, Massachusetts
Our Model Tree links this Frances Thomas across the 1930 and 1940 US Censuses in Worcester-County, Massachusetts (XGBoost, ~Confirmed) — first a son (b.~1930), then head of a 9-person household.
Age 10
b. ~1930
Male
Son
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Worcester-County, Massachusetts |
| Surname | Thomas |
| Given Name | Frances |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Leominster City |
| 1935 Residence (County) | Worcester |
| Additional Details | |
| Highest Grade | 3 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | Leominster City |
| Est. Birth Year | ~1930 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Frances | Age | Birth yr |
|---|---|---|---|---|
| Lawrence Thomas | Son | — | 8 | ~1932 |
| Frances Thomas | Son | — | 10 | ~1930 |
| Beverly Thomas | Daughter | — | 12 | ~1928 |
| Thomas Thomas | Son | — | 2 | ~1938 |
| Mary Thomas | Spouse | — | 40 | ~1900 |
| Audrey Thomas | Daughter | — | ~1940 | |
| George Thomas | Head | — | 38 | ~1902 |
| Paul Thomas | Son | — | 6 | ~1934 |
| George Thomas | Son | — | 11 | ~1929 |
Census Appearances
1930
Worcester, Massachusetts
Other, age
Worcester, Massachusetts · implied b. ~1930 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Frances G |
| Relationship to Head | Grandson |
| Sex | M |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Worcester-County, Massachusetts
Son, age 10
Worcester-County, Massachusetts · implied b. ~1930 — 9 household members
| Surname | Thomas |
| Given Name | Frances |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Leominster City |
| 1935 Residence (County) | Worcester |
| Highest Grade | 3 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
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 Frances Thomas across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Frances Thomas
Son · 1940 · age 10 · b. ~1930 · Massachusetts
★ You are viewing this record
Sibling
Beverly Thomas
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lawrence Thomas
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Paul Thomas
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas Thomas
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
George Thomas
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Audrey Thomas
Sibling · 1940 · age
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 — Worcester-County, Massachusetts
Open full size
1940 US Federal Census — Worcester-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01651-00341)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Arthur A. Roy | 36 | Head | Carrier | Massachusetts |
| 2 | Angeline Roy | 38 | Wife | — | Massachusetts |
| 3 | Catherine Thomas | 72 | Head | — | Massachusetts |
| 4 | Frances Thomas | 42 | Son | Press Feeder | Massachusetts |
| 5 | Catherine Thomas | 33 | Daughter | Matron | Massachusetts |
| 6 | Robert Thomas | 17 | Son | — | Massachusetts |
| 7 | George Thomas | 38 | Head | Printer | Massachusetts |
| 8 | Mary Thomas | 40 | Wife | — | Massachusetts |
| 9 | Beverly Thomas | 12 | Daughter | — | Massachusetts |
| 10 | George Jr. Thomas | 11 | Son | — | Massachusetts |
| 11 | Frances Thomas THIS PERSON | 10 | Son | — | Massachusetts |
| 12 | Lawrence Thomas | 8 | Son | — | Massachusetts |
| 13 | Paul Thomas | 6 | Son | — | Massachusetts |
| 14 | Thomas Thomas | 2 | Son | — | Massachusetts |
| 15 | Audrey Thomas | 0 | Daughter | — | Massachusetts |
| 16 | Stella La Pier | 53 | Head | Machine Operator | Vermont |
| 17 | Norman Brooks | 7 | Lodger | — | Massachusetts |
| 18 | Alfred J. Morse | 49 | Head | Fireman | Massachusetts |
| 19 | Florence B. Morse | 26 | Daughter | Frame Maker | Massachusetts |
| 20 | Ronald Gilmore | 35 | Head | Chef | Vermont |
| 21 | Eldora Gilmore | 35 | Wife | — | Massachusetts |
| 22 | Alfred Gilmore | 11 | Son | — | Massachusetts |
| 23 | Homer Miller | 23 | Head | Truck Driver | Massachusetts |
| 24 | Cecile Miller | 21 | Wife | Finisher | Canada French |
| 25 | Bartholomew Heaney | 38 | Head | Sleeper | Eire |
| 26 | Lucy Heaney | 40 | Wife | Ironer | Eire |
| 27 | John Flynn | 55 | Head | Yard Man | Eire |
| 28 | Annie Flynn | 48 | Wife | — | Eire |
| 29 | Mary Flynn | 32 | Daughter | — | Eire |
| 30 | Margaret Flynn | 24 | Daughter | — | Massachusetts |
| 31 | Robert Flynn | 22 | Son | — | Massachusetts |
| 32 | Pauline Flynn | 16 | Daughter | — | Massachusetts |
| 33 | Joseph Lemoine | 50 | Head | Carriage Maker | Massachusetts |
| 34 | Anna Lemoine | 37 | Wife | — | Massachusetts |
| 35 | Barbara Dignard | 13 | Daughter | — | Massachusetts |
| 36 | Cornelius Scully | 61 | Head | Carpenter | Eire |
| 37 | Mary Scully | 53 | Wife | — | Massachusetts |
| 38 | Elinor Scully | 22 | Daughter | School Teacher | Massachusetts |
| 39 | Alice Scully | 21 | Daughter | Waitress | Massachusetts |
| 40 | William Scully | 10 | Son | — | Massachusetts |
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)