RP
Robert Pearson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this Robert Pearson across the 1920, 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed), with identified parents John & John — first a head (b.~1909), then head of a 3-person household.
Age 31
b. ~1909
Male
Head
Born: Massachusetts
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Pearson |
| Given Name | Robert W. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Belmont |
| 1935 Residence (County) | Middlesex |
| Additional Details | |
| Occupation | Electrician |
| Industry | Electrical Contractor |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1500 |
| Highest Grade | H-4 |
| 1935 Residence | Massachusetts |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Electrician |
| Township / Ward | Arlington Town |
| Est. Birth Year | ~1909 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Robert Pearson | Son | — | 1 | ~1939 |
| Robert Pearson | Head | — | 31 | ~1909 |
| Vera Pearson | Spouse | — | 30 | ~1910 |
Census Appearances
1920
Middlesex, Massachusetts
Son, age 11
Middlesex, Massachusetts · implied b. ~1909 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Pearson |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Middlesex, Massachusetts
Son, age 21
Middlesex, Massachusetts · implied b. ~1909 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Pearson |
| Given Name | Robert W. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Electrician |
| Industry | Power Light |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Middlesex-County, Massachusetts
Head, age 31
Middlesex-County, Massachusetts · implied b. ~1909 — 3 household members
| Surname | Pearson |
| Given Name | Robert W. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Belmont |
| 1935 Residence (County) | Middlesex |
| Occupation | Electrician |
| Industry | Electrical Contractor |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1500 |
| 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 Robert Pearson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Pearson (~0.92 confidence) and father John Pearson (~0.92 confidence) and mother Gertrude Pearson (~0.92 confidence) and mother Linda Pearson (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Pearson
b. ~1884
Source father
● Household
· direct · ~0.92
Father
John Pearson
b. ~1884
Source father
● Household
· direct · ~0.92
Mother
Gertrude Pearson
b. ~1884
Source mother
● Household
· direct · ~0.92
Mother
Linda Pearson
b. ~1884
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Pearson
Head · 1940 · age 31 · b. ~1909 · 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
40 people indexed on this census page (nara:1940:m-t0627-01601-00574)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Muriel S. Chandler | 39 | Wife | — | Massachusetts |
| 42 | Joan A. Chandler | 3 | Daughter | — | Massachusetts |
| 43 | John J. Quinn | 49 | Head | Tower Man | Rhode Island |
| 44 | Helena M. Quinn | 40 | Wife | — | New York State |
| 45 | John J. Quinn | 8 | Son | — | Massachusetts |
| 46 | Franklin D. Quinn | 6 | Son | — | Massachusetts |
| 47 | John J. Quinn | 62 | Head | — | Massachusetts |
| 48 | Paul Wagner | 35 | Son-in-law | Painter | Canada-English |
| 49 | Sara F. Wagner | 47 | Daughter | — | Massachusetts |
| 50 | Guy J. Lambert | 37 | Head | Auto Mechanic | Massachusetts |
| 51 | Lorne B. Lambert | 30 | Wife | — | New Hampshire |
| 52 | Lorne A. Lambert | 10 | Daughter | — | Massachusetts |
| 53 | Von M. Weston | 32 | Head | Salesman | Maine |
| 54 | Beatrice L. Weston | 33 | Wife | — | Maine |
| 55 | Sara J. Weston | 13 | Daughter | — | Maine |
| 56 | Robert W. Pearson THIS PERSON | 31 | Head | Electrician | Massachusetts |
| 57 | Vera O. Pearson | 30 | Wife | Registered Nurse | Canada-English |
| 58 | Robert W. Jr. Pearson | 1 | Son | — | Massachusetts |
| 59 | Napoleon F. Carbonneau | 49 | Head | Plastering Contractor | Massachusetts |
| 60 | Christine E. Carbonneau | 48 | Wife | — | Canada-French |
| 61 | William E. Carbonneau | 25 | Daughter | Presser | Massachusetts |
| 62 | Joseph D. Gricus | 55 | Head | Factory Worker | Lithuania |
| 63 | Agnes C. Gricus | 50 | Wife | — | Lithuania |
| 64 | Adolf R. Gricus | 26 | Son | Asst Manager | Massachusetts |
| 65 | Thomas L. Kilpatrick | 38 | Head | Production Clerk | Massachusetts |
| 66 | Agnes M. Kilpatrick | 37 | Wife | — | Massachusetts |
| 67 | Joan A. Kilpatrick | 9 | Daughter | — | Massachusetts |
| 68 | Joyce A. Kilpatrick | 4 | Daughter | — | Massachusetts |
| 69 | Joyce A. Dickey | 67 | Mother-in-law | — | Scotland |
| 70 | Samuel J. Smith | 55 | Head | Piano Tuner | Canada-English |
| 71 | Anna C. Smith | 55 | Wife | — | Massachusetts |
| 72 | Russell V. Smith | 25 | Son | Musician | Massachusetts |
| 73 | Robert F. Smith | 23 | Son | Clerk | Massachusetts |
| 74 | David C. Kilpatrick | 33 | Head | Plumber | Massachusetts |
| 75 | Eleanor M. Kilpatrick | 30 | Daughter | — | Massachusetts |
| 76 | Elaine M. Kilpatrick | 5 | Daughter | — | Massachusetts |
| 77 | Clarence W. Cochran | 32 | Head | Sales Development | Connecticut |
| 78 | Lois F. Cochran | 33 | Wife | Teacher | Connecticut |
| 79 | Albert Olson | 44 | Head | Truck Driver | Massachusetts |
| 80 | Catherine M. Olson | 41 | Wife | — | Massachusetts |
Pedigree Summary
Robert
Gen 1 · 4 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)