RT
Ralph Thompson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this Ralph Thompson across the 1920, 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed) — first a head (b.~1883), then head of a 4-person household.
Age 57
b. ~1883
Male
Head
Born: Massachusetts
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Thompson |
| Given Name | Ralph |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 57 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Malden |
| Additional Details | |
| Occupation | Treasurer |
| Industry | Wholesale Paper |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 5637 |
| Highest Grade | H-4 |
| 1935 Residence | Massachusetts |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Treasurer |
| Township / Ward | Melrose |
| Est. Birth Year | ~1883 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Ralph | Age | Birth yr |
|---|---|---|---|---|
| Ralph Thompson | Head | — | 57 | ~1883 |
| Elizabeth Thompson | Daughter | — | 16 | ~1924 |
| Lillian Thompson | Spouse | — | 55 | ~1885 |
| Ralph Thompson | Son | — | 22 | ~1918 |
Census Appearances
1920
Middlesex, Massachusetts
Head, age 37
Middlesex, Massachusetts · implied b. ~1883 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Ralph |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Occupation | Manager |
| Industry | Iron Works |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | R |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Middlesex, Massachusetts
Head, age 47
Middlesex, Massachusetts · implied b. ~1883 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Ralph |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 47 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| Age at First Marriage | 31 |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Occupation | Treasurer |
| Industry | Metal Specialties |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 10500 |
| Radio Set | R |
| Veteran | No |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Middlesex-County, Massachusetts
Head, age 57
Middlesex-County, Massachusetts · implied b. ~1883 — 4 household members
| Surname | Thompson |
| Given Name | Ralph |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 57 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Malden |
| Occupation | Treasurer |
| Industry | Wholesale Paper |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 5637 |
| Highest Grade | H-4 |
| 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 Ralph Thompson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Ralph Thompson
Head · 1940 · age 57 · b. ~1883 · Massachusetts
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Middlesex-County, Massachusetts
Open full size
1940 US Federal Census — Middlesex-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01613-00194)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | William D. Landers | 44 | Head | Proprietor | Maine |
| 2 | Ruth Landers | 44 | Wife | — | Massachusetts |
| 3 | June S. Landers | 18 | Daughter | — | Massachusetts |
| 4 | Norman Wiggins | 42 | Head | Broker | Massachusetts |
| 5 | Anne Wiggins | 37 | Wife | — | Massachusetts |
| 6 | Grace A. Simonds | 79 | Head | — | Massachusetts |
| 7 | Fred C. Rand | 71 | Head | — | New Hampshire |
| 8 | Hattie F. Rand | 73 | Wife | — | Maine |
| 9 | C. Frederick Sprague | 52 | Head | Dentist | Massachusetts |
| 10 | Bonnie Sprague | 49 | Wife | — | Scotland |
| 11 | Ruth Gardner | 26 | Housekeeper | Housekeeper | Vermont |
| 12 | Alwin B. Thorn | 50 | Head | Assistant Treasurer | Massachusetts |
| 13 | Marjorie S. Thorn | 49 | Wife | — | Massachusetts |
| 14 | Adrienne Thorn | 21 | Daughter | — | Massachusetts |
| 15 | Robert A. Thorn | 19 | Son | — | Massachusetts |
| 16 | Raymond Blanchard | 44 | Head | Vice President | New Hampshire |
| 17 | Evelyn O. Blanchard | 43 | Wife | — | Massachusetts |
| 18 | Beverly Blanchard | 15 | Daughter | — | Massachusetts |
| 19 | Donald Blanchard | 13 | Son | — | Massachusetts |
| 20 | Herbert D. Foss | 51 | Head | Traveling Salesman | Maine |
| 21 | Mary Foss | 51 | Wife | — | Maine |
| 22 | Sheldon Foss | 15 | Son | — | Massachusetts |
| 23 | James Howard | 58 | Head | Printer | Massachusetts |
| 24 | Gertrude Howard | 58 | Wife | — | Massachusetts |
| 25 | Catherine Magee | 56 | Servant | Servant & Housekeeper | Canada-English |
| 26 | Frederick Nichols | 31 | Head | Office Executive | Massachusetts |
| 27 | Virginia Nichols | 28 | Wife | — | Massachusetts |
| 28 | Robert Nichols | 5 | Son | — | Massachusetts |
| 29 | Jr. Frederick Nichols | 2 | Son | — | Massachusetts |
| 30 | Ralph S. Carter | 54 | Head | Gas Engineer | Massachusetts |
| 31 | Gertrude Carter | 51 | Wife | — | Maine |
| 32 | Raymond W. Bacon | 35 | Head | Machinist | Massachusetts |
| 33 | Madolyn W. Bacon | 33 | Wife | — | Massachusetts |
| 34 | Jr. Raymond W. Bacon | 3 | Son | — | Massachusetts |
| 35 | Agnes Carrolls | 36 | Sister | Telephone Operator | Massachusetts |
| 36 | Ralph Thompson THIS PERSON | 57 | Head | Treasurer | Massachusetts |
| 37 | Lillian D. Thompson | 55 | Wife | — | Massachusetts |
| 38 | Ralph M. Thompson | 22 | Son | — | Massachusetts |
| 39 | Elizabeth Thompson | 16 | Daughter | — | Massachusetts |
| 40 | Chester L. Nourse | 52 | Head | Industrial Engineer | 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)