GS
Gilbert Smith — 1940 US Census Record
Model Tree available1940 United States Federal Census · Armstrong-County, Pennsylvania
Our Model Tree links this Gilbert Smith across the 1920, 1930 and 1940 US Censuses in Armstrong-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents Eva & Alfred — first a son (b.~1910), then head of a 4-person household.
Age 30
b. ~1910
Male
Son
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Armstrong-County, Pennsylvania |
| Surname | Smith |
| Given Name | Gilbert J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | South Bethlehem borough |
| 1935 Residence (County) | Armstrong |
| Additional Details | |
| Occupation | Milkman |
| Industry | Dairy |
| Class of Worker | PW |
| Hours Worked | 35 |
| Income (1939) | 800 |
| Highest Grade | 8 |
| 1935 Residence | Same house |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Milkman |
| Township / Ward | South Bethlehem Borough |
| Est. Birth Year | ~1910 |
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 Gilbert | Age | Birth yr |
|---|---|---|---|---|
| Arthur Smith | Son | — | 22 | ~1918 |
| Alfred Smith | Head | — | 38 | ~1902 |
| Ida Smith | Spouse | — | 37 | ~1903 |
| Gilbert Smith | Son | — | 30 | ~1910 |
Census Appearances
1920
Armstrong, Pennsylvania
Son, age 10
Armstrong, Pennsylvania · implied b. ~1910 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Gilbert A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | England |
| Mother's Birthplace | Pennsylvania |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Armstrong, Pennsylvania
Son, age 20
Armstrong, Pennsylvania · implied b. ~1910 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Gilbert J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | England |
| Mother's Birthplace | Pennsylvania |
| Occupation | Laborer |
| Industry | Brick Works |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Armstrong-County, Pennsylvania
Son, age 30
Armstrong-County, Pennsylvania · implied b. ~1910 — 4 household members
| Surname | Smith |
| Given Name | Gilbert J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | South Bethlehem borough |
| 1935 Residence (County) | Armstrong |
| Occupation | Milkman |
| Industry | Dairy |
| Class of Worker | PW |
| Hours Worked | 35 |
| Income (1939) | 800 |
| Highest Grade | 8 |
| 1935 Residence | Same house |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
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 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Eva Smith (~0.92 confidence) and father Alfred Smith (~0.92 confidence) and father Alfred Smith (~0.92 confidence) and father Alfred Smith (~0.60 confidence) and mother Ida Smith (~0.60 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.79
Mother
Eva Smith
b. ~1881
Source mother
● Household
· direct · ~0.92
Father
Alfred Smith
b. ~1884
Source father
● Household
· direct · ~0.92
Father
Alfred Smith
b. ~1885
Source father
● Household
· direct · ~0.92
Father
Alfred Smith
b. ~1902
Source father
● Household
· direct · ~0.6
Mother
Ida Smith
b. ~1903
Source mother
● Household
· direct · ~0.6
This person
Anchor record
Gilbert Smith
Son · 1940 · age 30 · b. ~1910 · Pennsylvania
★ You are viewing this record
Sibling
Arthur Smith
Sibling · 1940 · age 22
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 — Armstrong-County, Pennsylvania
Open full size
1940 US Federal Census — Armstrong-County, Pennsylvania
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-03424-00565)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | David Kirkpatrick | 34 | Head | Teacher | Pennsylvania |
| 2 | Evelyn Marie Kirkpatrick | 16 | Wife | — | Pennsylvania |
| 3 | Lois Jean Kirkpatrick | 12 | Daughter | — | Pennsylvania |
| 4 | Joyce Ann Kirkpatrick | 6 | Daughter | — | Pennsylvania |
| 5 | John Markle | 76 | Head | — | Pennsylvania |
| 6 | Margaret Markle | 72 | Wife | — | Pennsylvania |
| 7 | Melvin Shick | 25 | Head | Labor | Pennsylvania |
| 8 | Helen Shick | 22 | Wife | — | Pennsylvania |
| 9 | Shirley Shick | 6 | Daughter | — | Pennsylvania |
| 10 | Marlene Shick | 3 | Daughter | — | Pennsylvania |
| 11 | Lillian Shick | 2 | Daughter | — | Pennsylvania |
| 12 | Gail Shick | 1 | Daughter | — | Pennsylvania |
| 13 | Neff John | 51 | Head | Labor | Pennsylvania |
| 14 | Emma Q. John | 50 | Wife | — | Pennsylvania |
| 15 | Albert John | 20 | Son | Labor | Pennsylvania |
| 16 | Mrs. Clark D. Pelham | 76 | Head | — | Pennsylvania |
| 17 | Jesse Pelham | 42 | Daughter | Clerk | Pennsylvania |
| 18 | Milo Marty | 35 | Son-in-law | Radiator | Pennsylvania |
| 19 | Lillian Marty | 32 | Daughter | — | Pennsylvania |
| 20 | James Beham | 29 | Head | Mechanic | Pennsylvania |
| 21 | Genevieve Beham | 26 | Wife | — | Pennsylvania |
| 22 | James Beham | 3 | Son | — | Pennsylvania |
| 23 | Judith Beham | 1 | Daughter | — | Pennsylvania |
| 24 | Reuben Pyle | 67 | Head | — | Pennsylvania |
| 25 | Elizabeth Pyle | 67 | Wife | — | Pennsylvania |
| 26 | Ruth Pyle | 42 | Daughter | Telephone Operator | Pennsylvania |
| 27 | Alfred D. Smith | 38 | Head | — | England |
| 28 | Ida Smith | 37 | Wife | — | Pennsylvania |
| 29 | Gilbert J. Smith THIS PERSON | 30 | Son | Milkman | Pennsylvania |
| 30 | Arthur Smith | 22 | Son | Mechanic And Painter | Pennsylvania |
| 31 | Mary Doverspike | 70 | Head | — | Pennsylvania |
| 32 | Darrel Doverspike | 44 | Son | Janitor | Pennsylvania |
| 33 | Eugene Crawford | 21 | Lodger | New Worker | Pennsylvania |
| 34 | A. J. Mccune | 48 | Head | Miner | Pennsylvania |
| 35 | Bertha E. Mccune | 47 | Wife | — | Pennsylvania |
| 36 | Leroy Mccune | 22 | Son | Mechanic | Pennsylvania |
| 37 | C. C. Hoover | 41 | Head | Milk Dealer | Pennsylvania |
| 38 | Ethyl Hoover | 40 | Wife | — | Pennsylvania |
| 39 | Delane Hoover | 17 | Son | — | Pennsylvania |
Pedigree Summary
Gilbert + 1 sibling
Gen 1 · 5 parents
~0.79
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)