SS
Shirley Smith — 1940 US Census Record
Model Tree available1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this Shirley Smith across the 1920, 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed), with identified parents William & Edith — first a daughter (b.~1918), then head of a 4-person household.
Age 22
b. ~1918
Female
Daughter
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Smith |
| Given Name | Shirley A. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Somerville |
| 1935 Residence (County) | Middlesex |
| Additional Details | |
| Occupation | Asst. Clerk |
| Industry | Corrugated Boxes |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 988 |
| Highest Grade | No 8 |
| 1935 Residence | Massachusetts |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Asst. Clerk |
| Township / Ward | Wilmington |
| 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 Shirley | Age | Birth yr |
|---|---|---|---|---|
| Verna Smith | Daughter | — | 33 | ~1907 |
| Edna Smith | Daughter | — | 24 | ~1916 |
| Shirley Smith | Daughter | — | 22 | ~1918 |
| Edith Smith | Head | — | 52 | ~1888 |
Census Appearances
1920
Middlesex, Massachusetts
Daughter, age 2
Middlesex, Massachusetts · implied b. ~1918 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Shirley A |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Middlesex, Massachusetts
Daughter, age 12
Middlesex, Massachusetts · implied b. ~1918 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Shirley |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Middlesex-County, Massachusetts
Daughter, age 22
Middlesex-County, Massachusetts · implied b. ~1918 — 4 household members
| Surname | Smith |
| Given Name | Shirley A. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Somerville |
| 1935 Residence (County) | Middlesex |
| Occupation | Asst. Clerk |
| Industry | Corrugated Boxes |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 988 |
| Highest Grade | No 8 |
| 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 Shirley Smith across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father William Smith (~0.92 confidence) and mother Edith Smith (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
William Smith
b. ~1886
Source father
● Household
· direct · ~0.92
Mother
Edith Smith
b. ~1888
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Shirley Smith
Daughter · 1940 · age 22 · b. ~1918 · Massachusetts
★ You are viewing this record
Sibling
Verna Smith
Sibling · 1940 · age 33
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edna Smith
Sibling · 1940 · age 24
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-t0627-01621-00662)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Frances Foreman | 21 | Head | New Worker | New Jersey |
| 42 | William Foreman | 22 | Husband | New Worker | Massachusetts |
| 43 | David B. Foreman | 21 | Son | Laborer | Pennsylvania |
| 44 | Mary Willis | 74 | Mother-in-law | None | New Jersey |
| 45 | Adolph Simpson | 64 | Head | Piano Maker | Sweden |
| 46 | Tekla Simpson | 64 | Wife | None | Sweden |
| 47 | Albert W. Simpson | 33 | Son | Clerk | Massachusetts |
| 48 | Arvid G. Simpson | 32 | Son | Clerk | Massachusetts |
| 49 | Robert E. Simpson | 21 | Son | Salesman | Massachusetts |
| 50 | Esther M. Simpson | 27 | Daughter | Clerk | Massachusetts |
| 51 | Jonathan A. Hamilton | 35 | Head | Machinist | Massachusetts |
| 52 | Emily R. Hamilton | 70 | Mother | None | Eire |
| 53 | Jonathan A. Morrison | 63 | Uncle | None | Eire |
| 54 | Mabel S. Pomeroy | 50 | Head | None | Massachusetts |
| 55 | William F. Pomeroy | 55 | Husband | Painting | Quebec |
| 56 | William E. Pomeroy | 24 | Son | New Worker | Massachusetts |
| 57 | Frances M. Pomeroy | 25 | Daughter | New Worker | Saskatchewan |
| 58 | Lloyd P. Pomeroy | 11 | Son | None | Massachusetts |
| 59 | George R. Smith | 20 | Lodger | Manager | Massachusetts |
| 60 | Edith M. Smith | 52 | Head | None | Massachusetts |
| 61 | Verna M. Smith | 33 | Daughter | None | Massachusetts |
| 62 | Edna F. Smith | 24 | Daughter | Payroll Clerk | Massachusetts |
| 63 | Shirley A. Smith THIS PERSON | 22 | Daughter | Asst. Clerk | Massachusetts |
| 64 | Raymond Bartholic | 24 | Head | Laborer | New Hampshire |
| 65 | Helen G. Bartholic | 19 | Wife | None | Massachusetts |
| 66 | Leonard A. Wheeler | 35 | Head | Owner | Massachusetts |
| 67 | Alice M. Wheeler | 33 | Wife | None | New Hampshire |
| 68 | Theodore Wheeler | 4 | Son | — | Massachusetts |
| 69 | Ralph Wheeler | 2 | Son | — | Massachusetts |
| 70 | Lester W. Wheeler | 1 | Son | — | Massachusetts |
| 71 | Roger J. Wheeler | 0 | Son | — | Massachusetts |
| 72 | Charles G. Norton | 34 | Head | Truck Driver | Massachusetts |
| 73 | Alice A. Norton | 41 | Wife | None | Massachusetts |
| 74 | Lester G. Williams | 44 | Head | Route Foreman | Massachusetts |
| 75 | Birdie Williams | 41 | Wife | Route Salesman | Missouri |
| 76 | Ralph E. Hilaire | 33 | Stepson | Salesman | Arkansas |
| 77 | Veda F. Hilaire | 32 | Stepdaughter | Stenographer | Kansas |
| 78 | Paul Molinari | 60 | Head | None | Italy |
| 79 | Rose Molinari | 47 | Wife | None | Italy |
| 80 | Jerry Coleari | 27 | Step-son | Boilermaker | Massachusetts |
Pedigree Summary
Shirley + 2 siblings
Gen 1 · 2 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)