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Louise Harris — 1940 US Census Record
Model Tree available1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this Louise Harris across the 1920, 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed), with identified parents Robert & Robert — first a daughter (b.~1917), then head of a 4-person household.
Age 23
b. ~1917
Female
Daughter
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Harris |
| Given Name | Louise |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Somerville City |
| 1935 Residence (County) | Middlesex |
| Additional Details | |
| Occupation | Typist |
| Industry | Insurance Co. |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 900 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same house |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Typist |
| Township / Ward | Somerville City |
| 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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Louise | Age | Birth yr |
|---|---|---|---|---|
| Annie Harris | Spouse | — | 56 | ~1884 |
| Robert Harris | Son | — | 22 | ~1918 |
| Robert Harris | Head | — | 62 | ~1878 |
| Louise Harris | Daughter | — | 23 | ~1917 |
Census Appearances
1920
Middlesex, Massachusetts
Daughter, age 3
Middlesex, Massachusetts · implied b. ~1917 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Harris |
| Given Name | Louise M |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Ireland |
| Occupation | none |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Middlesex, Massachusetts
Daughter, age 13
Middlesex, Massachusetts · implied b. ~1917 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Harris |
| Given Name | Louise M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Irish Free State |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Middlesex-County, Massachusetts
Daughter, age 23
Middlesex-County, Massachusetts · implied b. ~1917 — 4 household members
| Surname | Harris |
| Given Name | Louise |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Somerville City |
| 1935 Residence (County) | Middlesex |
| Occupation | Typist |
| Industry | Insurance Co. |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 900 |
| Highest Grade | Hs 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 Harris across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Robert Harris (~0.92 confidence) and father Robert Harris (~0.92 confidence) and father Robert Harris (~0.92 confidence) and mother Annie Harris (~0.92 confidence) and mother Annie Harris (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Robert Harris
b. ~1878
Source father
● Household
· direct · ~0.92
Father
Robert Harris
b. ~1878
Source father
● Household
· direct · ~0.92
Father
Robert Harris
b. ~1878
Source father
● Household
· direct · ~0.92
Mother
Annie Harris
b. ~1884
Source mother
● Household
· direct · ~0.92
Mother
Annie Harris
b. ~1884
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Louise Harris
Daughter · 1940 · age 23 · b. ~1917 · Massachusetts
★ You are viewing this record
Sibling
Robert Harris
Sibling · 1940 · age 22
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 — 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-t0627-01705-00567)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Charles Mccarthy | 56 | Head | Dispatcher | Massachusetts |
| 2 | Bertha R. Mccarthy | 54 | Wife | — | North Ireland |
| 3 | Ethel Mccarthy | 27 | Daughter | Bookkeeper | Massachusetts |
| 4 | Alice Mccarthy | 24 | Daughter | Typist | Massachusetts |
| 5 | Joan Mccarthy | 18 | Daughter | Typist | Massachusetts |
| 6 | Bernice Mccarthy | 16 | Daughter | — | Massachusetts |
| 7 | Peter Anderson | 75 | Head | — | Sweden |
| 8 | Annie Anderson | 70 | Wife | — | Massachusetts |
| 9 | Christina Anderson | 31 | Daughter | Typist | Massachusetts |
| 10 | Leonard R. Libbey | 78 | Head | — | Massachusetts |
| 11 | Alice Libbey | 44 | Daughter | Teacher | Massachusetts |
| 12 | Harold Young | 27 | Head | Bookbinder | Massachusetts |
| 13 | Anna Young | 27 | Wife | — | Massachusetts |
| 14 | Richard Young | 2 | Son | — | Massachusetts |
| 15 | Robert Nelson | 47 | Head | Fireman | Canada-English |
| 16 | Hazel Nelson | 45 | Wife | — | Maine |
| 17 | Emily Nelson | 25 | Daughter | Clerk | Massachusetts |
| 18 | Robert Nelson | 23 | Son | Porter | Massachusetts |
| 19 | Marion Nelson | 17 | Son | — | Massachusetts |
| 20 | Marion D. Hussey | 51 | Head | Clerk | Massachusetts |
| 21 | Maude Foster | 76 | Mother | — | Massachusetts |
| 22 | Robert Harris | 62 | Head | Florist | Massachusetts |
| 23 | Annie Harris | 56 | Wife | — | Eire |
| 24 | Louise Harris THIS PERSON | 23 | Daughter | Typist | Massachusetts |
| 25 | Robert Harris | 22 | Son | Stock Clerk | Massachusetts |
| 26 | Wilbur Nathanson | 38 | Head | Chauffer | Massachusetts |
| 27 | Marie Nathanson | 34 | Wife | — | Massachusetts |
| 28 | William Nathanson | 13 | Son | — | Massachusetts |
| 29 | Henry Nathanson | 11 | Son | — | Massachusetts |
| 30 | Mary Nathanson | 9 | Daughter | — | Massachusetts |
| 31 | Rose Nathanson | 7 | Daughter | — | Massachusetts |
| 32 | Arvid Carlson | 48 | Head | Fireman | Massachusetts |
| 33 | Anna Carlson | 47 | Wife | — | Massachusetts |
| 34 | Olive Lathrop | 38 | Head | Saleswoman | Massachusetts |
| 35 | Anne Lathrop | 32 | Wife | — | Massachusetts |
| 36 | Harry Lathrop | 9 | Son | — | Massachusetts |
| 37 | Walter Lathrop | 7 | Son | — | Massachusetts |
| 38 | Eva Lathrop | 3 | Daughter | — | Massachusetts |
| 39 | Pauline Sweeney | 69 | Head | — | Canada-English |
| 40 | Lester Sweeney | 31 | Son | Pianist | Massachusetts |
Pedigree Summary
Louise + 1 sibling
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)