CT
Catherine Thompson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Suffolk-County, Massachusetts
Our Model Tree links this Catherine Thompson across the 1930 and 1940 US Censuses in Suffolk-County, Massachusetts (XGBoost, ~Confirmed) — first a daughter (b.~1925), then head of a 8-person household.
Age 15
b. ~1925
Female
Daughter
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Suffolk-County, Massachusetts |
| Surname | Thompson |
| Given Name | Catherine |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston City |
| 1935 Residence (County) | Suffolk |
| Additional Details | |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | Boston City |
| Est. Birth Year | ~1925 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Catherine | Age | Birth yr |
|---|---|---|---|---|
| Alice Thompson | Spouse | — | 37 | ~1903 |
| Leo Thompson | Son | — | 18 | ~1922 |
| Leo Thompson | Head | — | 39 | ~1901 |
| Harold Thompson | Son | — | 11 | ~1929 |
| Dorothy Thompson | Daughter | — | 5 | ~1935 |
| Robert Thompson | Son | — | 2 | ~1938 |
| Catherine Thompson | Daughter | — | 15 | ~1925 |
| Joan Thompson | Daughter | — | 7 | ~1933 |
Census Appearances
1930
Suffolk, Massachusetts
Daughter, age 4
Suffolk, Massachusetts · implied b. ~1926 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Catherine |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Suffolk-County, Massachusetts
Daughter, age 15
Suffolk-County, Massachusetts · implied b. ~1925 — 8 household members
| Surname | Thompson |
| Given Name | Catherine |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston City |
| 1935 Residence (County) | Suffolk |
| 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 Catherine Thompson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Catherine Thompson
Daughter · 1940 · age 15 · b. ~1925 · Massachusetts
★ You are viewing this record
Sibling
Joan Thompson
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Thompson
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Harold Thompson
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Thompson
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Leo Thompson
Sibling · 1940 · age 18
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-t0627-01659-00549)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | James Williams | 35 | Head | Painter | Canada |
| 2 | Alice Williams | 33 | Wife | — | Newfoundland |
| 3 | James Williams | 14 | Son | — | Somerville |
| 4 | Kenneth Williams | 13 | Son | — | Medford |
| 5 | Ethel Williams | 12 | Daughter | — | Canada-English |
| 6 | Richard Williams | 11 | Son | — | Medford |
| 7 | Christopher Williams | 11 | Son | — | Massachusetts |
| 8 | Barbara Williams | 7 | Daughter | — | Massachusetts |
| 9 | Dorothy Williams | 6 | Daughter | — | Massachusetts |
| 10 | Stella Williams | 4 | Daughter | — | Massachusetts |
| 11 | Patricia Williams | 2 | Daughter | — | Massachusetts |
| 12 | Leo Thompson | 39 | Head | Longshoreman | Massachusetts |
| 13 | Alice G. Thompson | 37 | Wife | — | Massachusetts |
| 14 | Leo Thompson | 18 | Son | Laborer | Massachusetts |
| 15 | Catherine Thompson THIS PERSON | 15 | Daughter | — | Massachusetts |
| 16 | Harold Thompson | 11 | Son | — | Massachusetts |
| 17 | Joan M. Thompson | 7 | Daughter | — | Massachusetts |
| 18 | Dorothy Thompson | 5 | Daughter | — | Massachusetts |
| 19 | Robert P. Thompson | 2 | Son | — | Massachusetts |
| 20 | Lawrence Fay | 25 | Head | Stevedore | Massachusetts |
| 21 | Helen Fay | 17 | Wife | — | Massachusetts |
| 22 | Annie M. Lucack | 72 | Head | — | New Hampshire |
| 23 | Stephen J. Lucack | 44 | Son | — | New Hampshire |
| 24 | Fred V. Lucack | 39 | Son | Longshoreman | Massachusetts |
| 25 | John R. Lucack | 37 | Son | Gas-Fitter | Massachusetts |
| 26 | Bernard Lucack | 31 | Son | Garment Cutter | Massachusetts |
| 27 | Rosetta Valle | 29 | Daughter | Bookkeeper | Massachusetts |
| 28 | Dolores Valle | 3 | Granddaughter | — | Massachusetts |
| 29 | John J. Ryle | 39 | Head | Chauffeur | Massachusetts |
| 30 | Elizabeth Ryle | 35 | Wife | — | Massachusetts |
| 31 | Thomas Ryle | 16 | Son | — | Massachusetts |
| 32 | John Ryle | 14 | Son | — | Massachusetts |
| 33 | Francis Ryle | 12 | Son | — | Massachusetts |
| 34 | Marilyn Ryle | 2 | Daughter | — | Massachusetts |
| 35 | Margaret Ann Ryle | 0 | Daughter | — | Massachusetts |
| 36 | Alfred Ridings | 39 | Head | Clerk | Massachusetts |
| 37 | Frances Ridings | 38 | Wife | — | Massachusetts |
| 38 | Mary Ridings | 19 | Daughter | Leather Worker | Massachusetts |
| 39 | Alfred Ridings | 18 | Son | Helper | Massachusetts |
| 40 | Francis Ridings | 15 | 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)