HT
Herbert Thomas — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Suffolk-County, Massachusetts
Our Model Tree links this Herbert Thomas across the 1930 and 1940 US Censuses in Suffolk-County, Massachusetts (XGBoost, ~Confirmed) — first a son (b.~1919), then head of a 9-person household.
Age 21
b. ~1919
Male
Son
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Suffolk-County, Massachusetts |
| Surname | Thomas |
| Given Name | Herbert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | East Boston |
| Additional Details | |
| Occupation | Steel worker |
| Industry | Steel manufactory |
| Class of Worker | PW |
| Hours Worked | 42 |
| Income (1939) | 496 |
| Highest Grade | No 8 |
| 1935 Residence | Massachusetts |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Steel Worker |
| Township / Ward | Chelsea |
| Est. Birth Year | ~1919 |
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 Herbert | Age | Birth yr |
|---|---|---|---|---|
| Catherine Thomas | Spouse | — | 47 | ~1893 |
| Herbert Thomas | Son | — | 21 | ~1919 |
| Lorine Thomas | Daughter | — | 17 | ~1923 |
| William Thomas | Head | — | 45 | ~1895 |
| Clare Thomas | Daughter | — | 15 | ~1925 |
| Mary Thomas | Daughter | — | 19 | ~1921 |
| Raymond Thomas | Son | — | 6 | ~1934 |
| Catherine Thomas | Daughter | — | 12 | ~1928 |
| Paul Thomas | Son | — | 7 | ~1933 |
Census Appearances
1930
Suffolk, Massachusetts
Son, age 11
Suffolk, Massachusetts · implied b. ~1919 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Herbert |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Suffolk-County, Massachusetts
Son, age 21
Suffolk-County, Massachusetts · implied b. ~1919 — 9 household members
| Surname | Thomas |
| Given Name | Herbert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | East Boston |
| Occupation | Steel worker |
| Industry | Steel manufactory |
| Class of Worker | PW |
| Hours Worked | 42 |
| Income (1939) | 496 |
| Highest Grade | No 8 |
| 1935 Residence | Massachusetts |
| 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 Herbert Thomas across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Herbert Thomas
Son · 1940 · age 21 · b. ~1919 · Massachusetts
★ You are viewing this record
Sibling
Paul Thomas
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Clare Thomas
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Thomas
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Catherine Thomas
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Raymond Thomas
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lorine Thomas
Sibling · 1940 · age 17
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 — 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-t0627-01641-00565)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Mary De Wolf | 47 | Wife | House Keeper | Canada French |
| 2 | Martha De Wolf | 21 | Daughter | Box Folder | Canada French |
| 3 | Virginia De Wolf | 18 | Daughter | New Worker | Massachusetts |
| 4 | Bernard De Wolf | 11 | Son | — | Massachusetts |
| 5 | William Thomas | 45 | Head | Rigger | Massachusetts |
| 6 | Catherine F. Thomas | 47 | Wife | House Keeper | Massachusetts |
| 7 | Herbert Thomas THIS PERSON | 21 | Son | Steel Worker | Massachusetts |
| 8 | Mary Thomas | 19 | Daughter | Fancy Packer | Massachusetts |
| 9 | Lorine Thomas | 17 | Daughter | House Keeper | Massachusetts |
| 10 | Clare Thomas | 15 | Daughter | — | Massachusetts |
| 11 | Catherine Thomas | 12 | Daughter | — | Massachusetts |
| 12 | Paul Thomas | 7 | Son | — | Massachusetts |
| 13 | Raymond Thomas | 6 | Son | — | Massachusetts |
| 14 | John J. Coleman | 60 | Head | Salesman | Massachusetts |
| 15 | Gertrude A. Coleman | 53 | Wife | House Keeper | Massachusetts |
| 16 | Laurence B. Trainor | 82 | Head | Plasterer | Canada English |
| 17 | Eva B. Trainor | 64 | Wife | House Keeper | Massachusetts |
| 18 | Anna Trainor | 24 | Daughter | Typist | Massachusetts |
| 19 | Margaret M. Fitzgerald | 70 | Head | House Keeper | Scotland |
| 20 | Jane Macknight | 67 | Sister | Assistant House Keeper | Scotland |
| 21 | John J. Kilkelly | 58 | Head | Watchman | Eire |
| 22 | Delia S. Kilkelly | 59 | Wife | House Keeper | Eire |
| 23 | Mary Kilkelly | 30 | Daughter | Book Keeper | Massachusetts |
| 24 | Joseph Kilkelly | 27 | Son | Comptometer Machine | Massachusetts |
| 25 | Helene Kilkelly | 26 | Daughter | Typist | Massachusetts |
| 26 | John Kilkelly | 24 | Son | General Utility | Massachusetts |
| 27 | Adelaide T. Salaine | 74 | Head | House Keeper | Massachusetts |
| 28 | Harry N. Ellis | 47 | Head | Sherman Cloud | Massachusetts |
| 29 | Alice P. Ellis | 24 | Wife | House Keeper | Massachusetts |
| 30 | John A. Ellis | 19 | Son | Laborer | Massachusetts |
| 31 | Francis H. Ellis | 17 | Son | — | Massachusetts |
| 32 | Helen A. Ellis | 16 | Daughter | New Worker | Massachusetts |
| 33 | Harry M. Ellis | 14 | Son | — | Massachusetts |
| 34 | William N. Ellis | 12 | Son | — | Massachusetts |
| 35 | Charles E. Ellis | 10 | Son | — | Massachusetts |
| 36 | Andrew J. Ellis | 3 | Son | — | Massachusetts |
| 37 | Robert V. Ellis | 1 | Son | — | Massachusetts |
| 38 | Lauren A. Gallant | 58 | Head | Carpenter | Canada French |
| 39 | Melina Gallant | 44 | Wife | House Keeper | Canada French |
| 40 | Raymond Gallant | 15 | Son | New Worker | Massachusetts |
Related Census Records
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)