GS
Gilbert Smith — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this Gilbert Smith across the 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed) — first a son (b.~1920), then head of a 7-person household.
Age 20
b. ~1920
Male
Son
Born: Canada English
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Smith |
| Given Name | Gilbert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Canada English |
| 1935 Residence (City) | Watertown |
| 1935 Residence (County) | Middlesex |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Painter |
| Industry | For father |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 0 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth Country | Canada |
| Birthplace (normalized) | canada english |
| Occupation | Painter |
| Township / Ward | Watertown |
| Est. Birth Year | ~1920 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Gilbert | Age | Birth yr |
|---|---|---|---|---|
| Arthur Smith | Son | — | 27 | ~1913 |
| Annie Smith | Daughter | — | 33 | ~1907 |
| Minnie Smith | Daughter | — | 23 | ~1917 |
| Walter Smith | Son | — | 25 | ~1915 |
| Gilbert Smith | Son | — | 20 | ~1920 |
| Abigail Smith | Spouse | — | 64 | ~1876 |
| Thomas Smith | Head | — | 64 | ~1876 |
Census Appearances
1930
Middlesex, Massachusetts
Son, age 10
Middlesex, Massachusetts · implied b. ~1920 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Gilbert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Canada English |
| Age at First Marriage | 1923 |
| Father's Birthplace | England |
| Mother's Birthplace | England |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Birth Country | Canada |
| Birthplace (normalized) | canada english |
1940
Middlesex-County, Massachusetts
Son, age 20
Middlesex-County, Massachusetts · implied b. ~1920 — 7 household members
| Surname | Smith |
| Given Name | Gilbert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Canada English |
| 1935 Residence (City) | Watertown |
| 1935 Residence (County) | Middlesex |
| Naturalization Status | Naturalized |
| Occupation | Painter |
| Industry | For father |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 0 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth Country | Canada |
| Birthplace (normalized) | canada english |
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 Gilbert Smith across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Gilbert Smith
Son · 1940 · age 20 · b. ~1920 · Massachusetts
★ You are viewing this record
Sibling
Walter Smith
Sibling · 1940 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Minnie Smith
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Annie Smith
Sibling · 1940 · age 33
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Arthur Smith
Sibling · 1940 · age 27
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-t0627-01620-00407)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Eleanor M Moore | 39 | Head | Librarian | Mass |
| 42 | Harry R Horne | 51 | Head | Foreman | Canada English |
| 43 | Ethel G Horne | 50 | Wife | — | Canada English |
| 44 | George H Horne | 22 | Son | Stereotyper | Canada English |
| 45 | Blanche L Horne | 42 | Daughter-in-law | — | Maine |
| 46 | George R Horne | 3 | Grandson | — | Mass |
| 47 | Sandra C Horne | 0 | Granddaughter | — | Mass |
| 48 | Mary A Horne | 92 | Mother | — | Canada English |
| 49 | Harry S Jelalian | 78 | Roomer | — | Turkey |
| 50 | Charlotte B Smith | 69 | Roomer | — | Maine |
| 51 | Thomas S Smith | 64 | Head | Painter | England |
| 52 | Abigail Smith | 64 | Wife | — | England |
| 53 | Annie Smith | 33 | Daughter | Clerk | England |
| 54 | Arthur Smith | 27 | Son | Painter | Canada English |
| 55 | Walter Smith | 25 | Son | Painter | Canada English |
| 56 | Minnie Smith | 23 | Daughter | Card Engraver | Canada English |
| 57 | Gilbert Smith THIS PERSON | 20 | Son | Painter | Canada English |
| 58 | William J Macmahon | 44 | Head | Clerk | Mass |
| 59 | Helena G Macmahon | 43 | Wife | — | Mass |
| 60 | William J Jr Macmahon | 17 | Son | — | Mass |
| 61 | Ruth A Macmahon | 14 | Daughter | — | Mass |
| 62 | Mary C Macmahon | 10 | Daughter | — | Mass |
| 63 | James H Gormley | 56 | Brother-in-law | Baker | Mass |
| 64 | Katherine F Gormley | 51 | Sister-in-law | Bookkeeper | Mass |
| 65 | Joseph A Macmahon | 51 | Brother | — | Mass |
| 66 | Lucy C D Grosvenor | 57 | Head | Teacher | Illinois |
| 67 | Mabel C Macnult | 69 | Head | — | Mass |
| 68 | Katherine A Bacon | 39 | Daughter | Lecturer | Mass |
| 69 | Silas Bacon | 29 | Son-in-law | — | Mass |
| 70 | Grace A Cook | 71 | Lodger | — | Mass |
| 71 | Laura G Rundlett | 49 | Head | Clerk | Mass |
| 72 | Margaret C Ripley | 44 | Head | Coat Acet. | Mass |
| 73 | Elizabeth G Blanchard | 52 | Head | Practical Nurse | Mass |
| 74 | Katherine M Wood | 64 | Sister | Seamstress | Mass |
| 75 | Ulric D Roberts | 44 | Head | Salesman | Mass |
| 76 | Olive E Roberts | 48 | Wife | Practical Nurse | Michigan |
| 77 | Joseph A Sampson | 60 | Head | Carpenter | Canada French |
| 78 | Alvina Sampson | 64 | Wife | — | Canada French |
| 79 | Albert J Sampson | 30 | Son | Clerk | Canada French |
| 80 | Peter Sampson | 27 | Son | Painter | Canada French |
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)