LT
Louise Thompson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this Louise Thompson across the 1910, 1920, 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed), with identified parents Albert & Albert — first a daughter (b.~1902), then head of a 2-person household.
Age 38
b. ~1902
Female
Daughter
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Thompson |
| Given Name | Louise |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 38 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Lowell City |
| 1935 Residence (County) | Middlesex |
| Additional Details | |
| Occupation | Teacher |
| Industry | Public School |
| Class of Worker | GW |
| Hours Worked | 25 |
| Income (1939) | 1240 |
| Highest Grade | C-4 |
| 1935 Residence | Same house |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Teacher |
| Township / Ward | Lowell City |
| Est. Birth Year | ~1902 |
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.
2 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Louise | Age | Birth yr |
|---|---|---|---|---|
| Albert Thompson | Head | — | 75 | ~1865 |
| Louise Thompson | Daughter | — | 38 | ~1902 |
Census Appearances
Daughter, age 7
Middlesex, Massachusetts · implied b. ~1903 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Laura E |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1920
Middlesex, Massachusetts
Daughter, age 18
Middlesex, Massachusetts · implied b. ~1902 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Louise E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Occupation | Student |
| Industry | Normal School |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Middlesex, Massachusetts
Daughter, age 28
Middlesex, Massachusetts · implied b. ~1902 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Louise E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Occupation | School Teacher |
| Industry | Primary School |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Middlesex-County, Massachusetts
Daughter, age 38
Middlesex-County, Massachusetts · implied b. ~1902 — 2 household members
| Surname | Thompson |
| Given Name | Louise |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 38 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Lowell City |
| 1935 Residence (County) | Middlesex |
| Occupation | Teacher |
| Industry | Public School |
| Class of Worker | GW |
| Hours Worked | 25 |
| Income (1939) | 1240 |
| Highest Grade | C-4 |
| 1935 Residence | Same house |
| 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 Louise Thompson across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Albert Thompson (~0.92 confidence) and father Albert Thompson (~0.92 confidence) and father Samuel Thompson (~0.92 confidence) and mother Ellen Thompson (~0.92 confidence) and mother Louise Thompson (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Albert Thompson
b. ~1865
Source father
● Household
· direct · ~0.92
Father
Albert Thompson
b. ~1864
Source father
● Household
· direct · ~0.92
Father
Samuel Thompson
b. ~1871
Source father
● Household
· direct · ~0.92
Mother
Ellen Thompson
b. ~1869
Source mother
● Household
· direct · ~0.92
Mother
Louise Thompson
b. ~1875
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Louise Thompson
Daughter · 1940 · age 38 · b. ~1902 · Massachusetts
★ You are viewing this record
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
36 people indexed on this census page (nara:1940:m-t0627-01691-00182)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Calvin French | 8 | Son | 30 | Massachusetts |
| 2 | Walter W. Grant | 53 | Head | Laborer | Massachusetts |
| 3 | Laura E. Grant | 50 | Wife | — | Canada-English |
| 4 | Harold T. Grant | 23 | Son | Laborer | Massachusetts |
| 5 | Doris E. Grant | 23 | Daughter | — | New Brunswick |
| 6 | Clarence R. Howe | 54 | Head | Manufacturer | Massachusetts |
| 7 | Agnes D. Howe | 52 | Wife | — | Rhode Island |
| 8 | Edward D. Howe | 16 | Son | — | Massachusetts |
| 9 | Anna G. Ennis | 62 | Head | — | Massachusetts |
| 10 | William F. Ryan | 54 | Head | Physician | Vermont |
| 11 | Mary F. Ryan | 42 | Wife | — | Massachusetts |
| 12 | William F. Jr. Ryan | 16 | Son | — | Massachusetts |
| 13 | Mary Eleanor Ryan | 15 | Daughter | — | Massachusetts |
| 14 | John Ryan | 12 | Son | — | Massachusetts |
| 15 | Marilyn Ryan | 10 | Daughter | — | Massachusetts |
| 16 | Catherine Ryan | 6 | Daughter | — | Massachusetts |
| 17 | Margaret O'Neil | 80 | Aunt | — | Massachusetts |
| 18 | Stanley Messier | 43 | Head | Manufacturer | Poland |
| 19 | Catherine Messier | 43 | Wife | — | Poland |
| 20 | Alicia Messier | 15 | Daughter | — | Massachusetts |
| 21 | Rudolph Messier | 13 | Son | — | Massachusetts |
| 22 | Stanley Jr. Messier | 7 | Son | — | Massachusetts |
| 23 | Albert S. Thompson | 75 | Head | Clerk | Massachusetts |
| 24 | Louise Thompson THIS PERSON | 38 | Daughter | Teacher | Massachusetts |
| 25 | Erwin Beckman | 65 | Head | Professor | Germany |
| 26 | Fannie Beckman | 64 | Wife | — | Germany |
| 27 | Richard Otto | 88 | Father-in-law | — | Germany |
| 28 | William E. Rowlandson | 70 | Head | — | Connecticut |
| 29 | Anna M. Rowlandson | 65 | Wife | — | Canada-English |
| 30 | Janet Rowlandson | 46 | Daughter | Doctor | Massachusetts |
| 31 | Quinta Rowlandson | 37 | Daughter | — | Massachusetts |
| 32 | Samuel Rowlandson | 35 | Son | Dye Worker | Massachusetts |
| 33 | William H. Lawler | 37 | Head | Physician | Massachusetts |
| 34 | Ellen M. Lawler | 29 | Wife | — | Massachusetts |
| 35 | Ellen Ann Lawler | 7 | Daughter | — | Massachusetts |
| 36 | Virginia Lawler | 5 | Daughter | — | Massachusetts |
Related Census Records
Pedigree Summary
Louise
Gen 1 · 5 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)