AS
Alvin Smith — 1940 US Census Record
Model Tree available1940 United States Federal Census · Scotts-Bluff-County, Nebraska
Our Model Tree links this Alvin Smith across the 1920, 1930 and 1940 US Censuses in Scotts-Bluff-County, Nebraska (XGBoost, ~Confirmed), with identified parents William & Emma — first a head (b.~1907), then head of a 5-person household.
Age 33
b. ~1907
Male
Head
Born: Colorado
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Scotts-Bluff-County, Nebraska |
| Surname | Smith |
| Given Name | Alvin |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Colorado |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Scottsbluff |
| Additional Details | |
| Occupation | Laborer |
| Industry | P.W.A. |
| Class of Worker | GW |
| Hours Worked | 32 |
| Income (1939) | 700 |
| Highest Grade | 8 |
| 1935 Residence | Nebraska |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
| Occupation | Laborer |
| Township / Ward | Ford Precinct |
| Est. Birth Year | ~1907 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Alvin | Age | Birth yr |
|---|---|---|---|---|
| Sarah Smith | Spouse | — | 28 | ~1912 |
| Marvin Smith | Son | — | 9 | ~1931 |
| Audrey Smith | Daughter | — | 3 | ~1937 |
| Alvin Smith | Head | — | 33 | ~1907 |
| Mary Smith | Daughter | — | 1 | ~1939 |
Census Appearances
1920
Scotts Bluff, …
Son, age 13
Scotts Bluff, Nebraska · implied b. ~1907 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Alvin D |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Colorado |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
1930
Scottsbluff, Nebraska
Son, age 23
Scottsbluff, Nebraska · implied b. ~1907 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Alvin |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Colorado |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Occupation | Laborer |
| Industry | On Farm |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
1940
Scotts-Bluff-County, Nebraska
Head, age 33
Scotts-Bluff-County, Nebraska · implied b. ~1907 — 5 household members
| Surname | Smith |
| Given Name | Alvin |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Colorado |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Scottsbluff |
| Occupation | Laborer |
| Industry | P.W.A. |
| Class of Worker | GW |
| Hours Worked | 32 |
| Income (1939) | 700 |
| Highest Grade | 8 |
| 1935 Residence | Nebraska |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
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 Alvin Smith across 3 US Census years (1920, 1930 and 1940) in 3 locations, using XGBoost record linkage. Identified parents: father William Smith (~0.92 confidence) and mother Emma Smith (~0.92 confidence) and mother Emma Smith (~0.92 confidence) and father William Smith (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
William Smith
b. ~1873
Source father
● Household
· direct · ~0.92
Mother
Emma Smith
b. ~1882
Source mother
● Household
· direct · ~0.92
Mother
Emma Smith
b. ~1882
Source mother
● Household
· direct · ~0.92
Father
William Smith
b. ~1893
Source father
● Household
· direct · ~0.92
This person
Anchor record
Alvin Smith
Head · 1940 · age 33 · b. ~1907 · Nebraska
★ 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 — Scotts-Bluff-County, Nebraska
Open full size
1940 US Federal Census — Scotts-Bluff-County, Nebraska
Page Contents
30 people indexed on this census page (nara:1940:m-t0627-02264-00153)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Alvin Smith THIS PERSON | 33 | Head | Laborer | Colorado |
| 2 | Sarah Smith | 28 | Wife | — | Colorado |
| 3 | Marvin Smith | 9 | Son | — | Nebraska |
| 4 | Audrey Smith | 3 | Daughter | — | Nebraska |
| 5 | Mary Ann Smith | 1 | Daughter | — | Nebraska |
| 6 | Ruben Kamaf | 25 | Head | Laborer | Nebraska |
| 7 | Mary Kamaf | 20 | Wife | — | Nebraska |
| 8 | William Kamaf | 26 | Brother | Laborer | Nebraska |
| 9 | Emma Kamaf | 17 | Sister-in-law | — | Nebraska |
| 10 | Katie Henkel | 25 | Head | — | Nebraska |
| 11 | Robert Henkel | 6 | Son | — | Nebraska |
| 12 | Ernie Henkel | 5 | Son | — | Nebraska |
| 13 | Marvin Henkel | 4 | Son | — | Nebraska |
| 14 | Barbra Henkel | 1 | Daughter | — | Nebraska |
| 15 | Tom Ridgley | 57 | Head | Farmer | Indiana |
| 16 | Lucy Ridgley | 44 | Wife | — | Colorado |
| 17 | Dustin Ridgley | 20 | Son | Laborer | Missouri |
| 18 | Charles W. Furnish | 57 | Head | Truck Driver | Nebraska |
| 19 | Clara Mae Furnish | 52 | Wife | — | Nebraska |
| 20 | Elmer Furnish | 19 | Son | Laborer | Colorado |
| 21 | Hester Furnish | 14 | Daughter | — | Nebraska |
| 22 | Carlyle Furnish | 12 | Son | — | Colorado |
| 23 | Lester Harr | 33 | Head | Laborer | Missouri |
| 24 | Vivian Harr | 24 | Wife | — | Colorado |
| 25 | Betty Harr | 9 | Daughter | — | New Mexico |
| 26 | Frank Gilory | 68 | Head | Beet Laborer | Mexico |
| 27 | Ventura Gilory | 52 | Wife | Beet Laborer | Mexico |
| 28 | Ruth Gilory | 15 | Daughter | Beet Laborer | Iowa |
| 29 | Sol Gilory | 13 | Son | — | Iowa |
| 30 | Ruben Gilory | 10 | Son | — | Iowa |
Pedigree Summary
Alvin
Gen 1 · 4 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)