IS
Ira Smith — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this Ira Smith across the 1920, 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed) — first a head (b.~1868), then head of a 2-person household.
Age 72
b. ~1868
Male
Head
Born: Maine
Widowed
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Smith |
| Given Name | Ira D. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 72 |
| Marital Status | Widowed |
| Birthplace | Maine |
| 1935 Residence (City) | Medford City |
| 1935 Residence (County) | Middlesex |
| Additional Details | |
| Occupation | Sign Painter |
| Industry | Advertising |
| Class of Worker | PW |
| Highest Grade | No 7 |
| 1935 Residence | Same place |
| Birth State | Maine |
| Birth Country | United States |
| Birthplace (normalized) | maine |
| Occupation | Sign Painter |
| Township / Ward | Medford City |
| Est. Birth Year | ~1868 |
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 Ira | Age | Birth yr |
|---|---|---|---|---|
| Beatrice Smith | Daughter | — | 32 | ~1908 |
| Ira Smith | Head | — | 72 | ~1868 |
Census Appearances
1920
Middlesex, Massachusetts
Head, age 58
Middlesex, Massachusetts · implied b. ~1862 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Ira |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 58 |
| Marital Status | Married |
| Birthplace | Maine |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Maine |
| Occupation | Painter |
| Industry | Sign Co. |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Maine |
| Birth Country | United States |
| Year of Naturalization | R |
| Birthplace (normalized) | maine |
1930
Middlesex, Massachusetts
Head, age 63
Middlesex, Massachusetts · implied b. ~1867 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Ira D |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 63 |
| Marital Status | Married |
| Birthplace | Maine |
| Age at First Marriage | 26 |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Maine |
| Occupation | Sign Writer |
| Industry | Advertising |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 7000 |
| Radio Set | R |
| Veteran | no |
| Birth State | Maine |
| Birth Country | United States |
| Birthplace (normalized) | maine |
1940
Middlesex-County, Massachusetts
Head, age 72
Middlesex-County, Massachusetts · implied b. ~1868 — 2 household members
| Surname | Smith |
| Given Name | Ira D. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 72 |
| Marital Status | Widowed |
| Birthplace | Maine |
| 1935 Residence (City) | Medford City |
| 1935 Residence (County) | Middlesex |
| Occupation | Sign Painter |
| Industry | Advertising |
| Class of Worker | PW |
| Highest Grade | No 7 |
| 1935 Residence | Same place |
| Birth State | Maine |
| Birth Country | United States |
| Birthplace (normalized) | maine |
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 Ira Smith across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Ira Smith
Head · 1940 · age 72 · b. ~1868 · 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-t0627-01611-00213)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Ira D. Smith THIS PERSON | 72 | Head | Sign Painter | Maine |
| 42 | Beatrice G. Smith | 32 | Daughter | Bookkeeper | Massachusetts |
| 43 | Arthur E. Brandt | 28 | Head | Tile Clerk | New Jersey |
| 44 | Pauline Brandt | 27 | Wife | Salesgirl | New Hampshire |
| 45 | Paulette Brandt | 6 | Daughter | — | Massachusetts |
| 46 | Robert Oaks | 36 | Head | Bookkeeper | Massachusetts |
| 47 | Pauline Oaks | 26 | Wife | File Clerk | Maine |
| 48 | John M. Ellis | 46 | Head | Bookkeeper | Nova Scotia |
| 49 | Grace L. Ellis | 46 | Wife | — | Massachusetts |
| 50 | Virginia G. Ellis | 18 | Daughter | — | Massachusetts |
| 51 | Edward Chicks | 53 | Head | Marine Engineer | Maine |
| 52 | Katherine E. Chicks | 52 | Wife | — | Massachusetts |
| 53 | Elaine Chicks | 12 | Daughter | — | Massachusetts |
| 54 | Leslie Argent | 46 | Head | Automobile Mechanic | Maine |
| 55 | Laura Argent | 44 | Wife | — | Massachusetts |
| 56 | Nettie Parmenter | 71 | Mother-in-law | — | Massachusetts |
| 57 | John J. Broderick | 55 | Head | Inspector | Eire |
| 58 | Elizabeth Broderick | 57 | Wife | — | Eire |
| 59 | Herbert Waterfall | 44 | Head | Real Estate Officer | Newfoundland |
| 60 | Lillian Waterfall | 43 | Wife | — | Newfoundland |
| 61 | Ruth Waterfall | 14 | Daughter | — | Massachusetts |
| 62 | Herbert Jr. Waterfall | 11 | Son | — | Massachusetts |
| 63 | Richard S. Warrington | 65 | Head | Tool Maker | Massachusetts |
| 64 | Matilda Warrington | 65 | Wife | — | England |
| 65 | Ruth D. Warrington | 33 | Daughter | Instructor | Massachusetts |
| 66 | John Walsh | 31 | Head | Adjuster | Massachusetts |
| 67 | Loretta M. Walsh | 34 | Wife | — | Massachusetts |
| 68 | Chester A. Hoadley | 52 | Head | Railroad Engineer | Massachusetts |
| 69 | Inez Hoadley | 49 | Wife | Stenographer | Massachusetts |
| 70 | Marion Doval | 39 | Lodger | — | — |
| 71 | Walter Brandt | 58 | Head | Garage Foreman | Massachusetts |
| 72 | Edna Brandt | 75 | Wife | — | Massachusetts |
| 73 | Bert Farrell | 45 | Lodger | Salesman | New Hampshire |
| 74 | Error Farrell | None | — | — | — |
| 75 | — | None | — | — | — |
| 76 | Frank E. Brigham | 67 | Head | Accountant | Massachusetts |
| 77 | Lulu Brigham | 63 | Wife | — | Maine |
| 78 | Raymond Brigham | 42 | Son | Musician | Massachusetts |
| 79 | Ruth Brigham | 38 | Daughter | Teacher | Massachusetts |
| 80 | Selma Hanson | 63 | Head | — | Sweden |
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)