RS
Roland Smith — 1940 US Census Record
Model Tree available1940 United States Federal Census · Plymouth-County, Massachusetts
Our Model Tree links this Roland Smith across the 1920, 1930 and 1940 US Censuses in Plymouth-County, Massachusetts (XGBoost, ~Confirmed), with identified parents Charles & Charles — first a head (b.~1909), then head of a 4-person household.
Age 31
b. ~1909
Male
Head
Born: Massachusetts
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Plymouth-County, Massachusetts |
| Surname | Smith |
| Given Name | Roland P |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Pembroke (Town) |
| 1935 Residence (County) | Plymouth |
| Additional Details | |
| Occupation | Automobile Mechanic |
| Industry | Garage |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 1300 |
| Highest Grade | H-3 |
| 1935 Residence | Same House |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Automobile Mechanic |
| Township / Ward | Pembroke 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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Roland | Age | Birth yr |
|---|---|---|---|---|
| Beatrice Smith | Spouse | — | 27 | ~1913 |
| Robert Sidney | Other | — | 31 | ~1909 |
| Roland Smith | Son | — | 8 | ~1932 |
| Roland Smith | Head | — | 31 | ~1909 |
Census Appearances
1920
Plymouth, Massachusetts
Son, age 10
Plymouth, Massachusetts · implied b. ~1910 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Roland D. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | New York |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Plymouth, Massachusetts
Son, age 21
Plymouth, Massachusetts · implied b. ~1909 — 12 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Roland D. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | New York |
| Occupation | Rubber worker |
| Industry | Rubber mill |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Plymouth-County, Massachusetts
Head, age 31
Plymouth-County, Massachusetts · implied b. ~1909 — 4 household members
| Surname | Smith |
| Given Name | Roland P |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Pembroke (Town) |
| 1935 Residence (County) | Plymouth |
| Occupation | Automobile Mechanic |
| Industry | Garage |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 1300 |
| Highest Grade | H-3 |
| 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 Roland Smith across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Charles Smith (~0.92 confidence) and father Charles Smith (~0.92 confidence) and mother Myrtie Smith (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Charles Smith
b. ~1884
Source father
● Household
· direct · ~0.92
Father
Charles Smith
b. ~1884
Source father
● Household
· direct · ~0.92
Mother
Myrtie Smith
b. ~1881
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Roland Smith
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 — Plymouth-County, Massachusetts
Open full size
1940 US Federal Census — Plymouth-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01639-00363)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Fred A Swanson | 39 | Head | Painter | Massachusetts |
| 42 | Corinne P Swanson | 35 | Wife | Waitress | Massachusetts |
| 43 | Fred W Swanson | 15 | Son | — | Massachusetts |
| 44 | Doris C Swanson | 7 | Daughter | — | Massachusetts |
| 45 | Christopher A Sciarappa | 26 | Head | Boiler Engineer | Massachusetts |
| 46 | Lucy T Sciarappa | 24 | Wife | — | Massachusetts |
| 47 | Charles Rogers | 75 | Head | Boiler Engineer | Maine |
| 48 | Mina Lynch | 45 | Housekeeper | Housekeeper | Massachusetts |
| 49 | Arthur H Bonnell | 39 | Head | Boiler Engineer | Massachusetts |
| 50 | Hazel C Bonnell | 38 | Wife | — | Massachusetts |
| 51 | Phillip T Bonnell | 20 | Son | Clerk | Massachusetts |
| 52 | Grace A Bonnell | 19 | Daughter | Practical Nurse | Massachusetts |
| 53 | Charles H Bonnell | 18 | Son | New Worker | Massachusetts |
| 54 | Elizabeth A Bonnell | 7 | Daughter | — | Massachusetts |
| 55 | Ruth H Bonnell | 2 | Daughter | — | Massachusetts |
| 56 | Alsworth B Wright | 42 | Head | Fireman | Massachusetts |
| 57 | Lillian R Wright | 32 | Wife | — | Rhode Island |
| 58 | Florence E Wright | 5 | Daughter | — | Massachusetts |
| 59 | Allen H Wright | 2 | Son | — | Massachusetts |
| 60 | John P Blakeman | 68 | Head | — | Massachusetts |
| 61 | Adolor Le Pine | 53 | Head | Janitor | Massachusetts |
| 62 | Nina H Le Pine | 34 | Wife | — | Massachusetts |
| 63 | William G Le Pine | 7 | Son | — | Massachusetts |
| 64 | Harry E Leach | 29 | Head | Chef | Massachusetts |
| 65 | Ardiet M Leach | 31 | Wife | — | Massachusetts |
| 66 | Carol M Leach | 4 | Daughter | — | Massachusetts |
| 67 | Giles C Leach | 0 | Son | — | Massachusetts |
| 68 | Roland P Smith THIS PERSON | 31 | Head | Automobile Mechanic | Massachusetts |
| 69 | Beatrice E Smith | 27 | Wife | — | Massachusetts |
| 70 | Roland P Jr Smith | 8 | Son | — | Massachusetts |
| 71 | Robert W Sidney | 31 | Boarder | Tractor Operator | Massachusetts |
| 72 | Wilfred H Raymond | 31 | Head | Brick Layer Tender | Massachusetts |
| 73 | Evelyn J Raymond | 29 | Wife | — | Maine |
| 74 | Lilla E Connor | 11 | Mother-in-law | — | Vermont |
| 75 | Annie G Washburn | 59 | Head | — | Canada-English |
| 76 | Leland M Washburn | 25 | Son | Laborer | Massachusetts |
| 77 | Richard H Washburn | 21 | Son | Laborer W.P.A. | Massachusetts |
| 78 | Victor P Burke | 21 | Son-in-law | Tack Machine Feeder | Massachusetts |
| 79 | Kathleen E Burke | 17 | Daughter | — | Massachusetts |
| 80 | George C Washburn | 65 | Head | — | Massachusetts |
Pedigree Summary
Roland
Gen 1 · 3 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)