GS
Gerald Smith — 1940 US Census Record
Model Tree available1940 United States Federal Census · Carroll-County, Iowa
Our Model Tree links this Gerald Smith across the 1910, 1920, 1930 and 1940 US Censuses in Carroll-County, Iowa (XGBoost, ~Confirmed), with identified parents Jas & Emma — first a son (b.~1903), then head of a 2-person household.
Age 37
b. ~1903
Male
Son
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Carroll-County, Iowa |
| Surname | Smith |
| Given Name | Gerald W |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 37 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Coon Rapids Town |
| 1935 Residence (County) | Carroll |
| Additional Details | |
| Occupation | Lineman |
| Industry | Electric Construction |
| Class of Worker | PW |
| Hours Worked | 20 |
| Income (1939) | 620 |
| Highest Grade | Hs 3 |
| 1935 Residence | Same Place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Lineman |
| Township / Ward | Coon Rapids Town |
| Est. Birth Year | ~1903 |
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.
2 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Gerald | Age | Birth yr |
|---|---|---|---|---|
| Emma Smith | Head | — | 65 | ~1875 |
| Gerald Smith | Son | — | 37 | ~1903 |
Census Appearances
1910
Carroll, Iowa
Son, age 7
Carroll, Iowa · implied b. ~1903 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Gerald |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1920
Carroll, Iowa
Son, age 17
Carroll, Iowa · implied b. ~1903 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Gerald W. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Carroll, Iowa
Son, age 27
Carroll, Iowa · implied b. ~1903 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Gerald A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Occupation | Lineman |
| Industry | Telephone |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Carroll-County, Iowa
Son, age 37
Carroll-County, Iowa · implied b. ~1903 — 2 household members
| Surname | Smith |
| Given Name | Gerald W |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 37 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Coon Rapids Town |
| 1935 Residence (County) | Carroll |
| Occupation | Lineman |
| Industry | Electric Construction |
| Class of Worker | PW |
| Hours Worked | 20 |
| Income (1939) | 620 |
| Highest Grade | Hs 3 |
| 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 Gerald Smith across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Jas Smith (~0.92 confidence) and mother Emma Smith (~0.92 confidence) and mother Emma Smith (~0.92 confidence) and mother Emma Smith (~0.92 confidence) and father John Smith (~0.92 confidence) and father John Smith (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Jas Smith
b. ~1872
Source father
● Household
· direct · ~0.92
Mother
Emma Smith
b. ~1875
Source mother
● Household
· direct · ~0.92
Mother
Emma Smith
b. ~1875
Source mother
● Household
· direct · ~0.92
Mother
Emma Smith
b. ~1875
Source mother
● Household
· direct · ~0.92
Father
John Smith
b. ~1875
Source father
● Household
· direct · ~0.92
Father
John Smith
b. ~1878
Source father
● Household
· direct · ~0.92
This person
Anchor record
Gerald Smith
Son · 1940 · age 37 · b. ~1903 · 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 — Carroll-County, Iowa
Open full size
1940 US Federal Census — Carroll-County, Iowa
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-01144-01106)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John A Blaschke | 19 | Son | — | Nebraska |
| 2 | Robert E Blaschke | 17 | Son | — | Nebraska |
| 3 | Joan Blaschke | 11 | Daughter | — | Iowa |
| 4 | Richard T Blaschke | 6 | Son | — | Iowa |
| 5 | Gail Blaschke | 4 | Daughter | — | Iowa |
| 6 | John H Stangl | 64 | Head | Proprietor | Iowa |
| 7 | Nellie Stangl | 60 | Wife | — | Iowa |
| 8 | Oswald A Stangl | 29 | Son | Bartender | Iowa |
| 9 | Clayton F Stangl | 27 | Son | Bartender | Iowa |
| 10 | Alice C Stangl | 20 | Daughter | Operator | Iowa |
| 11 | Patrick O Stangl | 18 | Son | — | Iowa |
| 12 | Mary C Stangl | 14 | Daughter | — | Canada |
| 14 | Doris F Watson | 43 | Head | Shoe Repairing | Iowa |
| 15 | Harriett J Watson | 43 | Wife | Seamstress | Wisconsin |
| 16 | Dorothy M Watson | 21 | Daughter | Operator | Iowa |
| 17 | Billy H Stangl | 23 | Head | Bartender | Nebraska |
| 18 | Deloris Stangl | 17 | Wife | — | Nebraska |
| 19 | Benjamin Morenz | 51 | Head | Laborer | Iowa |
| 20 | Martha M Morenz | 48 | Wife | Egg Candler | Iowa |
| 21 | Warren J Porter | 26 | Head | Retail | Illinois |
| 22 | Ethel A Porter | 26 | Wife | — | Illinois |
| 23 | Jordan T Johnson | 30 | Lodger | Music Instructor | Iowa |
| 24 | William Kruse | 48 | Head | Truck Driver | Iowa |
| 25 | Blanche E Kruse | 50 | Wife | — | Iowa |
| 26 | Forrest L Smith | 39 | Head | Rural Mail Carrier | Iowa |
| 27 | Mildred E Smith | 22 | Wife | — | Iowa |
| 28 | Joe L Smith | 3 | Son | — | Iowa |
| 29 | Thomas L Smith | 2 | Son | — | Iowa |
| 30 | Emma M Smith | 65 | Head | — | Iowa |
| 31 | Gerald W Smith THIS PERSON | 37 | Son | Lineman | Iowa |
| 32 | Robert F Timmons | 61 | Head | Proprietor | Iowa |
| 33 | Viva A Timmons | 57 | Wife | — | Iowa |
| 34 | George L Kirk | 26 | Head | Teamster | Iowa |
| 35 | Gertrude A Kirk | 19 | Wife | — | Iowa |
| 36 | David W Davis | 54 | Head | Bartender | Iowa |
| 37 | Harry E Betts | 38 | Head | Gas Attendant | Iowa |
| 38 | Jessie Betts | 33 | Wife | Egg Candler | Iowa |
| 39 | Raymond C Betts | 15 | Son | — | Iowa |
| 40 | Geraldine A Betts | 12 | Daughter | — | Iowa |
Pedigree Summary
Gerald
Gen 1 · 6 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)