CT
Clarence Thompson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Plymouth-County, Massachusetts
Our Model Tree links this Clarence Thompson across the 1920, 1930 and 1940 US Censuses in Plymouth-County, Massachusetts (XGBoost, ~Confirmed), with identified parents Thomas & Albert — first a son (b.~1917), then head of a 6-person household.
Age 23
b. ~1917
Male
Son
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Plymouth-County, Massachusetts |
| Surname | Thompson |
| Given Name | Clarence |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Middleborough |
| 1935 Residence (County) | Plymouth |
| Additional Details | |
| Occupation | Salesman |
| Industry | Retail grocery store |
| Class of Worker | PW |
| Hours Worked | 30 |
| Income (1939) | 496 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Salesman |
| Township / Ward | Middleborough |
| Est. Birth Year | ~1917 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Clarence | Age | Birth yr |
|---|---|---|---|---|
| Rose Thompson | Daughter | — | 19 | ~1921 |
| Gertrude Thompson | Daughter | — | 26 | ~1914 |
| Agnes Thompson | Head | — | 57 | ~1883 |
| Clarence Thompson | Son | — | 23 | ~1917 |
| Frank Thompson | Son | — | 18 | ~1922 |
| James Thompson | Son | — | 27 | ~1913 |
Census Appearances
1920
Plymouth, Massachusetts
Son, age 3
Plymouth, Massachusetts · implied b. ~1917 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Clarence P. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Massachusetts |
| Mother Tongue | Scotch |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Plymouth, Massachusetts
Son, age 13
Plymouth, Massachusetts · implied b. ~1917 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Clarence P |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Massachusetts |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Plymouth-County, Massachusetts
Son, age 23
Plymouth-County, Massachusetts · implied b. ~1917 — 6 household members
| Surname | Thompson |
| Given Name | Clarence |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Middleborough |
| 1935 Residence (County) | Plymouth |
| Occupation | Salesman |
| Industry | Retail grocery store |
| Class of Worker | PW |
| Hours Worked | 30 |
| Income (1939) | 496 |
| Highest Grade | No 8 |
| 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 Clarence Thompson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Thomas Thompson (~0.92 confidence) and father Albert Thompson (~0.92 confidence) and mother Agnes Thompson (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Thomas Thompson
b. ~1869
Source father
● Household
· direct · ~0.92
Father
Albert Thompson
b. ~1872
Source father
● Household
· direct · ~0.92
Mother
Agnes Thompson
b. ~1883
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Clarence Thompson
Son · 1940 · age 23 · b. ~1917 · Massachusetts
★ You are viewing this record
Sibling
James Thompson
Sibling · 1940 · age 27
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rose Thompson
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Frank Thompson
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Gertrude Thompson
Sibling · 1940 · age 26
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 — Plymouth-County, Massachusetts
Open full size
1940 US Federal Census — Plymouth-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01639-00180)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Anne C. Varney | 37 | daughter | — | Massachusetts |
| 2 | Remington Varney | 38 | son in law | Truck Driver | Massachusetts |
| 3 | Priscilla Varney | 18 | daughter | Bookkeeper | Massachusetts |
| 4 | Charles Varney | 16 | son | — | Massachusetts |
| 5 | Florence Varney | 10 | daughter | — | Massachusetts |
| 6 | Agnes Thompson | 57 | Head | — | Massachusetts |
| 7 | James Thompson | 27 | Son | Employer | Massachusetts |
| 8 | Clarence Thompson THIS PERSON | 23 | Son | Salesman | Massachusetts |
| 9 | Rose Thompson | 19 | daughter | Bookkeeper | Massachusetts |
| 10 | Frank Thompson | 18 | Son | Stock Clerk | Massachusetts |
| 11 | Gertrude Thompson | 26 | daughter | — | Massachusetts |
| 12 | Alva Halling | 44 | Head | Heel Shaver | Nova Scotia |
| 13 | Beatrice M. Halling | 39 | Wife | — | Rhode Island |
| 14 | Edna Laurence Halling | 17 | daughter | — | Rhode Island |
| 15 | Ruth Halling | 13 | daughter | — | Massachusetts |
| 16 | Shirley Halling | 10 | daughter | — | Massachusetts |
| 17 | George A. Green | 72 | Head | — | Massachusetts |
| 18 | Alta Green | 54 | Wife | — | Massachusetts |
| 19 | Charles H. Goodwin | 56 | Head | Janitor | Massachusetts |
| 20 | Harriett Goodwin | 54 | Wife | — | Nova Scotia |
| 21 | Norman Goodwin | 33 | Son | Labourer | Massachusetts |
| 22 | Malcolm Arter | 29 | Head | Machinist | Massachusetts |
| 23 | Lillian Arter | 24 | Wife | — | Massachusetts |
| 24 | Barbara Arter | 2 | daughter | — | Massachusetts |
| 25 | Ralph Conant | 50 | Boarder | Carpenter | Massachusetts |
| 26 | Tony Molisciuna | 58 | Head | Barber | Italy |
| 27 | Anne Molisciuna | 48 | Wife | — | Italy |
| 28 | Margaret Molisciuna | 24 | daughter | Match Maker | Massachusetts |
| 29 | Almolo Molisciuna | 20 | son | Breaking Channels | Massachusetts |
| 30 | Anne Molisciuna | 17 | daughter | New Worker | Massachusetts |
| 31 | Evelyn Molisciuna | 15 | daughter | — | Massachusetts |
| 32 | Antoinette Molisciuna | 10 | daughter | — | Massachusetts |
| 33 | Roy Tiger | 47 | Head | Automobile Mechanic | Massachusetts |
| 34 | Goldie Tiger | 40 | Wife | — | Massachusetts |
| 35 | Roy Jr. Tiger | 14 | Son | — | Massachusetts |
| 36 | Geraldine Tiger | 12 | daughter | — | Massachusetts |
| 37 | Adelbert Fuller | 68 | Head | Section Finisher | Massachusetts |
| 38 | Alice Fuller | 67 | Wife | — | England |
| 39 | Arlene Fuller | 20 | daughter | — | Massachusetts |
| 40 | Alberta Fuller | 15 | daughter | — | Massachusetts |
Pedigree Summary
Clarence + 4 siblings
Gen 1 · 3 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)