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Alfred Thompson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Suffolk-County, Massachusetts
Our Model Tree links this Alfred Thompson across the 1930 and 1940 US Censuses in Suffolk-County, Massachusetts (XGBoost, ~Confirmed) — first a son (b.~1928), then head of a 8-person household.
Age 12
b. ~1928
Male
Son
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Suffolk-County, Massachusetts |
| Surname | Thompson |
| Given Name | Alfred |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston City |
| 1935 Residence (County) | Suffolk |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | No 5 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | Boston City |
| Est. Birth Year | ~1928 |
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 Alfred | Age | Birth yr |
|---|---|---|---|---|
| Catherine Thompson | Daughter | — | 9 | ~1931 |
| Mary Thompson | Spouse | — | 42 | ~1898 |
| Mildred Thompson | Daughter | — | 18 | ~1922 |
| Mary Thompson | Daughter | — | 15 | ~1925 |
| Peter Flaherty | Other | — | 30 | ~1910 |
| Raymond Thompson | Head | — | 42 | ~1898 |
| Alfred Thompson | Son | — | 12 | ~1928 |
| Raymond Thompson | Son | — | 12 | ~1928 |
Census Appearances
1930
Suffolk, Massachusetts
Son, age 1
Suffolk, Massachusetts · implied b. ~1929 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Alfred |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Russia |
| Mother's Birthplace | Poland |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Suffolk-County, Massachusetts
Son, age 12
Suffolk-County, Massachusetts · implied b. ~1928 — 8 household members
| Surname | Thompson |
| Given Name | Alfred |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston City |
| 1935 Residence (County) | Suffolk |
| Income (1939) | 0 |
| Highest Grade | No 5 |
| 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 Thompson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Alfred Thompson
Son · 1940 · age 12 · b. ~1928 · Massachusetts
★ You are viewing this record
Sibling
Raymond Thompson
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Catherine Thompson
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Thompson
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mildred 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-t0627-01665-00660)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Amelio Colombo | 26 | Head | Butcher | Italy |
| 2 | Marietta Mistretta | 43 | Head | — | Massachusetts |
| 3 | Agnes Mistretta | 18 | Daughter | — | Massachusetts |
| 4 | Amelyn Mistretta | 17 | Daughter | — | Massachusetts |
| 5 | Joseph Mistretta | 15 | Son | — | Massachusetts |
| 6 | Harold Mistretta | 14 | Son | — | Massachusetts |
| 7 | Marietta Mistretta | 11 | Daughter | — | Massachusetts |
| 8 | Joan Mistretta | 9 | Daughter | — | Massachusetts |
| 9 | Robert Mistretta | 6 | Son | — | Massachusetts |
| 10 | Marie Early | 45 | Sister | Matron | Massachusetts |
| 11 | Grace E. Megher | 46 | Head | Timekeeper | Massachusetts |
| 12 | Richard F. Megher | 21 | Son | Salesman | Massachusetts |
| 13 | Eleanor Conley | 32 | Sister | — | Massachusetts |
| 14 | Joseph Warner | 52 | Roomer | Salesman | Massachusetts |
| 15 | William G. Irwin | 76 | Head | — | Canada English |
| 16 | Janet Irwin | 66 | Sister | Cashier | Massachusetts |
| 17 | Margaret Jeffers | 76 | Cousin | — | Canada English |
| 18 | Samuel A. V. Boddy | 75 | Head | — | Nova Scotia |
| 19 | Clara Boddy | 74 | Wife | — | Nova Scotia |
| 20 | Raymond J. Boddy | 38 | Son | Elevator Oper. | Massachusetts |
| 21 | Dorothy Boddy | 35 | Daughter | — | Canada English |
| 22 | Donald Boddy | 13 | Grandson | — | Michigan |
| 23 | Robert Boddy | 8 | Grandson | — | Canada English |
| 24 | Raymond Thompson | 42 | Head | Fireman | Maine |
| 25 | Mary Thompson | 42 | Wife | — | Eire |
| 26 | Mildred A. Thompson | 18 | Daughter | — | Massachusetts |
| 27 | Mary Thompson | 15 | Daughter | — | Massachusetts |
| 28 | Alfred Thompson THIS PERSON | 12 | Son | — | Massachusetts |
| 29 | Raymond Thompson | 12 | Son | — | Massachusetts |
| 30 | Catherine Thompson | 9 | Daughter | — | Massachusetts |
| 31 | Peter Flaherty | 30 | Boarder | Laborer | Eire |
| 32 | Edward B. Deveney | 64 | Head | Salesman | Massachusetts |
| 33 | Charlotte R. Deveney | 57 | Wife | — | Massachusetts |
| 34 | Jane Deveney | 13 | Daughter | — | Massachusetts |
| 35 | Edward R. Mendenhall | 32 | Head | Salesman | Massachusetts |
| 36 | Eleanor Mendenhall | 29 | Wife | — | Massachusetts |
| 37 | Genevieve Mendenhall | 6 | Daughter | — | Connecticut |
| 38 | Charlotte Mendenhall | 2 | Daughter | — | Massachusetts |
| 39 | Cassie G. Mcmorrow | 63 | Head | Printer | Maine |
| 40 | Florence Gilmartin | 45 | Roomer | Nurse | 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)