AS
Andrew Smith — 1940 US Census Record
Model Tree available1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this Andrew Smith across the 1920, 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed), with identified parents Robert — first a head (b.~1918), then head of a 4-person household.
Age 22
b. ~1918
Male
Head
Born: Massachusetts
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Smith |
| Given Name | Andrew |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Somerville City |
| 1935 Residence (County) | Middlesex |
| Additional Details | |
| Occupation | Draftsman |
| Industry | Fire Alarm |
| Class of Worker | GW |
| Hours Worked | 40 |
| Income (1939) | 167 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same Place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Draftsman |
| Township / Ward | Somerville City |
| Est. Birth Year | ~1918 |
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 Andrew | Age | Birth yr |
|---|---|---|---|---|
| Andrew Smith | Head | — | 22 | ~1918 |
| David Smith | Son | — | 5 | ~1935 |
| Arthur Smith | Son | — | 2 | ~1938 |
| Lillian Smith | Spouse | — | 22 | ~1918 |
Census Appearances
1920
Middlesex, Massachusetts
Son, age 1
Middlesex, Massachusetts · implied b. ~1919 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Andrew |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Middlesex, Massachusetts
Son, age 11
Middlesex, Massachusetts · implied b. ~1919 — 13 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Andrew |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Middlesex-County, Massachusetts
Head, age 22
Middlesex-County, Massachusetts · implied b. ~1918 — 4 household members
| Surname | Smith |
| Given Name | Andrew |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Somerville City |
| 1935 Residence (County) | Middlesex |
| Occupation | Draftsman |
| Industry | Fire Alarm |
| Class of Worker | GW |
| Hours Worked | 40 |
| Income (1939) | 167 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same Place |
| 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 Andrew Smith across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Robert Smith (~0.92 confidence). The pedigree spans 1 generation with 1 identified ancestor.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Robert Smith
b. ~1881
Source father
● Household
· direct · ~0.92
This person
Anchor record
Andrew Smith
Head · 1940 · age 22 · b. ~1918 · 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-t0627-01705-00228)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | James M. Fowler | 69 | Head | — | Canada English |
| 2 | John E. Fowler | 60 | Head | Painter | Canada English |
| 3 | Ella Manning | 61 | Head | — | Canada English |
| 4 | Arnold F. Manning | 25 | Son | Salesman | Massachusetts |
| 5 | Harry Snyder | 72 | Roomer | — | Massachusetts |
| 6 | William Kirkland | 27 | Head | Paintmixer | Massachusetts |
| 7 | Doris J. Kirkland | 23 | Wife | — | Canada English |
| 8 | Doris J. Kirkland | 0 | Daughter | — | Massachusetts |
| 9 | Francis Barrow | 29 | Head | Elevator Operator | Massachusetts |
| 10 | Catherine Barrow | 24 | Wife | — | Massachusetts |
| 11 | Mary Toretti | 57 | Mother-in-law | — | Massachusetts |
| 12 | James Toretti | 22 | Brother-in-law | Messenger | Massachusetts |
| 13 | Frank Mcdonald | 46 | Head | Carpenter | Canada English |
| 14 | Anna E. Mcdonald | 44 | Wife | — | Canada English |
| 15 | Gordon C. Mcdonald | 11 | Son | — | Massachusetts |
| 16 | Christine Mclean | 44 | Sister-in-law | — | Canada English |
| 17 | Michael T. Connolly | 60 | Head | Laborer | Eire |
| 18 | Catherine A. Connolly | 60 | Wife | — | Eire |
| 19 | Catherine Connolly | 30 | Daughter | Typist | Massachusetts |
| 20 | James A. Connolly | 28 | Son | Buyer | Massachusetts |
| 21 | Joseph B. Connolly | 27 | Son | Clerk | Massachusetts |
| 22 | Andrew Smith THIS PERSON | 22 | Head | Draftsman | Massachusetts |
| 23 | Lillian A. Smith | 22 | Wife | — | Massachusetts |
| 24 | David Smith | 5 | Son | — | Massachusetts |
| 25 | Arthur Smith | 2 | Son | — | Massachusetts |
| 26 | Richard Pattison | 40 | Head | Machinist | New Hampshire |
| 27 | Frances E. Pattison | 40 | Wife | — | Massachusetts |
| 28 | Alfred Pattison | 12 | Son | — | Massachusetts |
| 29 | Richard Pattison | 1 | Son | — | Massachusetts |
| 30 | Priscilla D. Brown | 23 | Head | — | Massachusetts |
| 31 | Mary J. Brown | 5 | Daughter | — | Massachusetts |
| 32 | Walter F. Brown | 2 | Son | — | Massachusetts |
| 33 | Edgar Armstrong | 61 | Head | Painter | Canada English |
| 34 | Helen Armstrong | 61 | Wife | — | Canada English |
| 35 | Eleanor Armstrong | 19 | Daughter | Office Assistant | Massachusetts |
| 36 | Edith D. Field | 65 | Head | — | Canada English |
| 37 | Marion Baker | 30 | Daughter | File Clerk | Massachusetts |
| 38 | Warren R. Baker | 30 | Son-in-law | Office Clerk | Massachusetts |
| 39 | Blanche Rhodes | 36 | Roomer | Maid | Canada English |
| 40 | Frederick Rhodes | 16 | Roomer | — | Massachusetts |
Pedigree Summary
Andrew
Gen 1 · 1 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)