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Alfred Thomas — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Suffolk-County, Massachusetts
Our Model Tree links this Alfred 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 | Alfred |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston City |
| 1935 Residence (County) | Suffolk |
| Additional Details | |
| Occupation | Soldier |
| Industry | U.S. Army |
| Class of Worker | GW |
| Hours Worked | 55 |
| Income (1939) | 350 |
| Highest Grade | H-4 |
| 1935 Residence | Same Place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Soldier |
| Township / Ward | Boston City |
| 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 Alfred | Age | Birth yr |
|---|---|---|---|---|
| William Thomas | Son | — | 13 | ~1927 |
| Elsa Thomas | Daughter | — | 16 | ~1924 |
| Theresa Thomas | Daughter | — | 12 | ~1928 |
| Alfred Thomas | Son | — | 21 | ~1919 |
| Rudolph Thomas | Son | — | 19 | ~1921 |
| Herbert Thomas | Son | — | 8 | ~1932 |
| Lucette Thomas | Spouse | — | 49 | ~1891 |
| Ludwig Thomas | Head | — | 54 | ~1886 |
| Paul Thomas | Son | — | 23 | ~1917 |
Census Appearances
1930
Suffolk, Massachusetts
Son, age 10
Suffolk, Massachusetts · implied b. ~1920 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Alfred |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Russia |
| Mother's Birthplace | Russia |
| 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 | Alfred |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston City |
| 1935 Residence (County) | Suffolk |
| Occupation | Soldier |
| Industry | U.S. Army |
| Class of Worker | GW |
| Hours Worked | 55 |
| Income (1939) | 350 |
| Highest Grade | 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 Alfred Thomas across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Alfred Thomas
Son · 1940 · age 21 · b. ~1919 · Massachusetts
★ You are viewing this record
Sibling
Theresa Thomas
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Thomas
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Elsa Thomas
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Paul Thomas
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Herbert Thomas
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rudolph 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 — 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-t0627-01680-00140)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Edward M Moulton | 65 | Head | Carpenter | Maine |
| 2 | Annette M Moulton | 62 | Wife | — | Massachusetts |
| 3 | Richard E Halberg | 28 | Head | Salesman | Massachusetts |
| 4 | Elinor S Halberg | 28 | Wife | — | Massachusetts |
| 5 | Ludwig Thomas | 54 | Head | — | Germany |
| 6 | Lucette Thomas | 49 | Wife | — | Germany |
| 7 | Paul Thomas | 23 | Son | — | Massachusetts |
| 8 | Alfred Thomas THIS PERSON | 21 | Son | Soldier | Massachusetts |
| 9 | Rudolph Thomas | 19 | Son | Printer | Massachusetts |
| 10 | Elsa Thomas | 16 | Daughter | — | Massachusetts |
| 11 | William Thomas | 13 | Son | — | Massachusetts |
| 12 | Theresa Thomas | 12 | Daughter | — | Massachusetts |
| 13 | Herbert Thomas | 8 | Son | — | Massachusetts |
| 14 | Ellen G Brown | 69 | Head | — | Massachusetts |
| 15 | Charles Warren | 45 | Son | Embalmer | Massachusetts |
| 16 | James J Morris | 57 | Head | Operator | England |
| 17 | Wilena M Morris | 60 | Wife | — | Canada English |
| 18 | Winifred J Morris | 27 | Daughter | — | Massachusetts |
| 19 | Mary B Mcvicar | 62 | Sister-in-law | — | Canada English |
| 20 | Louisa C Thielscher | 78 | Head | — | Massachusetts |
| 21 | Frederick W Thielscher | 59 | Brother | Shipper | Massachusetts |
| 22 | Elsa Thielscher | 54 | Sister | Clerk | Massachusetts |
| 23 | Louise Thielscher | 43 | Daughter | Secretary | Massachusetts |
| 24 | William C Sheriff | 29 | Head | Pressman | Massachusetts |
| 25 | Mildred Sheriff | 26 | Wife | — | Massachusetts |
| 26 | Robert Sheriff | 5 | Son | — | Massachusetts |
| 27 | Andrew Allan | 44 | Head | Investigator | Massachusetts |
| 28 | Veronica Allan | 39 | Wife | — | Massachusetts |
| 29 | Arthur Brennan | 41 | Head | Custodian | Massachusetts |
| 30 | Christina Brennan | 39 | Wife | — | Scotland |
| 31 | Nancy Brennan | 15 | Daughter | — | Massachusetts |
| 32 | John Kinnear | 72 | Father-in-law | — | Scotland |
| 33 | Ralph Hirst | 34 | Head | Service Man | Pennsylvania |
| 34 | Edith B Hirst | 33 | Wife | — | Rhode Island |
| 35 | Arthur R Hirst | 4 | Son | — | Massachusetts |
| 36 | Marjorie C Hirst | 5 | Daughter | — | Massachusetts |
| 37 | Harold M Cowley | 29 | Head | Superintendent | Massachusetts |
| 38 | Beulah C Cowley | 29 | Wife | — | Massachusetts |
| 39 | Richard H Cowley | 1 | Son | — | Massachusetts |
| 40 | Theresa Travers | 55 | Head | Waitress | Irish Free State |
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)