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Lester Smith — 1940 US Census Record
Model Tree available1940 United States Federal Census · Henry-County, Iowa
Our Model Tree links this Lester Smith across the 1920, 1930 and 1940 US Censuses in Henry-County, Iowa (XGBoost, ~Confirmed), with identified parents John & Edith — first a son (b.~1912), then head of a 3-person household.
Age 28
b. ~1912
Male
Son
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Henry-County, Iowa |
| Surname | Smith |
| Given Name | Lester |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Trenton |
| 1935 Residence (County) | Henry |
| Additional Details | |
| Occupation | Farming |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 60 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Farming |
| Township / Ward | Trenton |
| Est. Birth Year | ~1912 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Lester | Age | Birth yr |
|---|---|---|---|---|
| John Smith | Head | — | 62 | ~1878 |
| Lester Smith | Son | — | 28 | ~1912 |
| Edith Smith | Spouse | — | 63 | ~1877 |
Census Appearances
1920
Henry, Iowa
Son, age 9
Henry, Iowa · implied b. ~1911 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Lester |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Can Read | Yes |
| Speaks English | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Henry, Iowa
Son, age 19
Henry, Iowa · implied b. ~1911 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Lester |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Henry-County, Iowa
Son, age 28
Henry-County, Iowa · implied b. ~1912 — 3 household members
| Surname | Smith |
| Given Name | Lester |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Trenton |
| 1935 Residence (County) | Henry |
| Occupation | Farming |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 60 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
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 Lester Smith across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Smith (~0.92 confidence) and mother Edith Smith (~0.92 confidence) and mother Edith Smith (~0.92 confidence) and father John Smith (~0.92 confidence) and father John Smith (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Smith
b. ~1877
Source father
● Household
· direct · ~0.92
Mother
Edith Smith
b. ~1877
Source mother
● Household
· direct · ~0.92
Mother
Edith Smith
b. ~1877
Source mother
● Household
· direct · ~0.92
Father
John Smith
b. ~1878
Source father
● Household
· direct · ~0.92
Father
John Smith
b. ~1878
Source father
● Household
· direct · ~0.92
This person
Anchor record
Lester Smith
Son · 1940 · age 28 · b. ~1912 · Iowa
★ 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 — Henry-County, Iowa
Open full size
1940 US Federal Census — Henry-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01166-01213)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Myra Yedammon | 4 | Daughter | — | Iowa |
| 42 | John Yedammon | 1 | Son | — | Iowa |
| 43 | Martha Yedammon | 76 | Mother | — | Iowa |
| 44 | Henry N. Alters | 36 | Head | Farming | Kan. |
| 45 | Gladys Alters | 32 | Wife | Housekeeping | Iowa |
| 46 | Darlene Alters | 8 | Daughter | — | Iowa |
| 47 | Beverly Alters | 1 | Daughter | — | Iowa |
| 48 | Walter Scott | 42 | Head | Farming | Iowa |
| 49 | Bertha Scott | 44 | Wife | Housekeeping | Iowa |
| 50 | James Scott | 15 | Son | — | Iowa |
| 51 | Beverly Scott | 13 | Daughter | — | Iowa |
| 52 | Dan Scott | 11 | Son | — | Iowa |
| 53 | Vernon Hite | 55 | Head | Farming | Iowa |
| 54 | Etta Hite | 58 | Wife | Housekeeping | Iowa |
| 55 | Wilbur Haller | 55 | Head | Farming | Iowa |
| 56 | Minnie Haller | 57 | Wife | Housekeeping | Iowa |
| 57 | Dwight Messenger | 46 | Head | Farming | Iowa |
| 58 | Agusta Messenger | 41 | Wife | Housekeeping | Iowa |
| 59 | Mark Brewster | 49 | Head | Farming | Iowa |
| 60 | Nellie Brewster | 41 | Wife | Housekeeping | Iowa |
| 61 | Betty Brewster | 16 | Daughter | — | Iowa |
| 62 | Mark Scarff | 38 | Head | Farming | Iowa |
| 63 | Mary Scarff | 38 | Wife | Housekeeping | Iowa |
| 64 | Ruth Scarff | 7 | Daughter | — | Iowa |
| 65 | Helen Scarff | 5 | Daughter | — | Iowa |
| 66 | Robert Scarff | 3 | Son | — | Iowa |
| 67 | Roberta Scarff | 3 | Daughter | — | Iowa |
| 68 | Arthur Scarff | 46 | Head | Farming | Iowa |
| 69 | Lilly Scarff | 45 | Wife | Housekeeping | Iowa |
| 70 | Mary Scarff | 16 | Daughter | — | Iowa |
| 71 | Paul Scarff | 13 | Son | — | Iowa |
| 72 | Merit Scarff | 11 | Son | — | Iowa |
| 73 | William Anderson | 52 | Head | Farming | Ill. |
| 74 | Lilly Anderson | 51 | Wife | Housekeeping | Iowa |
| 75 | Esther M. Anderson | 25 | Daughter | — | Iowa |
| 76 | Ruth E. Anderson | 18 | Daughter | House Labor | Iowa |
| 77 | John M. Smith | 62 | Head | Farming | Iowa |
| 78 | Edith Smith | 63 | Wife | Housekeeping | Iowa |
| 79 | Lester Smith THIS PERSON | 28 | Son | Farming | Iowa |
| 80 | James Mclee | 55 | Head | Farming | Kan. |
Pedigree Summary
Lester
Gen 1 · 5 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)