DT
Dorothy Thomas — 1940 US Census Record
Model Tree available1940 United States Federal Census · Suffolk-County, Massachusetts
Our Model Tree links this Dorothy Thomas across the 1920, 1930 and 1940 US Censuses in Suffolk-County, Massachusetts (XGBoost, ~Confirmed), with identified parents Ellen — first a spouse (b.~1911), then head of a 5-person household.
Age 29
b. ~1911
Female
Spouse
Born: Massachusetts
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Suffolk-County, Massachusetts |
| Surname | Thomas |
| Given Name | Dorothy A |
| Relationship to Head | wife |
| Sex | F |
| Color / Race | White |
| Age | 29 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston city |
| 1935 Residence (County) | Suffolk |
| Additional Details | |
| Highest Grade | No H-4 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | Boston City |
| Est. Birth Year | ~1911 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Dorothy | Age | Birth yr |
|---|---|---|---|---|
| Irene Thomas | Daughter | — | 3 | ~1937 |
| Owen Thomas | Head | — | 31 | ~1909 |
| William Thomas | Son | — | 7 | ~1933 |
| Robert Thomas | Son | — | 5 | ~1935 |
| Dorothy Thomas | Spouse | — | 29 | ~1911 |
Census Appearances
1920
Suffolk, Massachusetts
Daughter, age 8
Suffolk, Massachusetts · implied b. ~1912 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Dorothy |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | England |
| Mother's Birthplace | Nova Scotia |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Suffolk, Massachusetts
Daughter, age 19
Suffolk, Massachusetts · implied b. ~1911 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Dorothy |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | England |
| Mother's Birthplace | Canada-English |
| Occupation | Packer |
| Industry | Chocolate Mfg |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Suffolk-County, Massachusetts
Spouse, age 29
Suffolk-County, Massachusetts · implied b. ~1911 — 5 household members
| Surname | Thomas |
| Given Name | Dorothy A |
| Relationship to Head | wife |
| Sex | F |
| Color / Race | White |
| Age | 29 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston city |
| 1935 Residence (County) | Suffolk |
| Highest Grade | No H-4 |
| 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 Dorothy Thomas across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Ellen Thomas (~0.92 confidence). The pedigree spans 1 generation with 1 identified ancestor.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Ellen Thomas
b. ~1865
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Dorothy Thomas
Spouse · 1940 · age 29 · b. ~1911 · Massachusetts
★ 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 — Suffolk-County, Massachusetts
Open full size
1940 US Federal Census — Suffolk-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01658-00131)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Julia Conti | 10 | daughter | — | Massachusetts |
| 2 | Biagio Jr Conti | 3 | son | — | Massachusetts |
| 3 | Salvatore Malanga | 57 | head | Laborer | Italy |
| 4 | Rose Malanga | 50 | wife | — | Italy |
| 5 | Joseph Malanga | 15 | son | New Worker | Massachusetts |
| 6 | Felicia Malanga | 10 | daughter | — | Massachusetts |
| 7 | Mary A Carroll | 22 | head | — | Massachusetts |
| 8 | Owen J Thomas | 31 | head | Longshoreman | Massachusetts |
| 9 | Dorothy A Thomas THIS PERSON | 29 | wife | — | Massachusetts |
| 10 | William F Thomas | 7 | son | — | Massachusetts |
| 11 | Robert Thomas | 5 | son | — | Massachusetts |
| 12 | Irene Thomas | 3 | daughter | — | Massachusetts |
| 13 | Joseph J Taft | 38 | head | Longshoreman | Massachusetts |
| 14 | Margaret Taft | 32 | wife | — | Massachusetts |
| 15 | Joseph P Taft | 7 | son | — | Massachusetts |
| 16 | Francis W Taft | 6 | son | — | Massachusetts |
| 17 | William A Crosell | 50 | head | Street Car Operator | Eire |
| 18 | Rudolph A Tippet | 57 | head | Repair Man | Pennsylvania |
| 19 | Elizabeth A Tippet | 48 | wife | — | Massachusetts |
| 20 | Curtis Tippet | 15 | son | — | Massachusetts |
| 21 | Angelo Russo | 46 | head | Candy Maker | Italy |
| 22 | Frances Russo | 41 | wife | Proprietor | Italy |
| 23 | Salvatore Russo | 22 | son | Bundle Packer | Massachusetts |
| 24 | Philip Russo | 17 | son | — | Massachusetts |
| 25 | Joseph Russo | 13 | son | — | Massachusetts |
| 26 | Theodora Russo | 11 | daughter | — | Massachusetts |
| 27 | Gerald Russo | 5 | son | — | Massachusetts |
| 28 | Saverio Murstone | 54 | head | Laborer | Italy |
| 29 | Mary Murstone | 45 | wife | — | Italy |
| 30 | Suzanne Murstone | 23 | daughter | Saleslady | Massachusetts |
| 31 | Eugene Murstone | 20 | son | New Worker | Massachusetts |
| 32 | Etta Murstone | 17 | daughter | New Worker | Massachusetts |
| 33 | Cristi Murstone | 14 | son | — | Massachusetts |
| 34 | John Murstone | 12 | son | — | Massachusetts |
| 35 | Helen Murstone | 10 | daughter | — | Massachusetts |
| 36 | Rita Murstone | 8 | daughter | — | Massachusetts |
| 37 | Irene Murstone | 5 | daughter | — | Massachusetts |
| 38 | Concetta Curreri | 24 | head | — | Massachusetts |
| 39 | Leonard Curreri | 7 | son | — | Massachusetts |
| 40 | Vincent Curreri | 6 | son | — | Massachusetts |
Pedigree Summary
Dorothy
Gen 1 · 1 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)