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Frank Carpenter — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Buena-Vista-County, Iowa
Our Model Tree links this Frank Carpenter across the 1910, 1920, 1930 and 1940 US Censuses in Buena-Vista-County, Iowa (XGBoost, ~Confirmed) — first a head (b.~1885), then head of a 4-person household.
Age 55
b. ~1885
Male
Head
Born: Iowa
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Buena-Vista-County, Iowa |
| Surname | Carpenter |
| Given Name | Frank J |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 55 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Nokomis |
| 1935 Residence (County) | Buena Vista |
| Additional Details | |
| Industry | 5 |
| Class of Worker | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same house |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Nokomis |
| Est. Birth Year | ~1885 |
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 Frank | Age | Birth yr |
|---|---|---|---|---|
| Lyle Carpenter | Son | — | 13 | ~1927 |
| Frank Carpenter | Head | — | 55 | ~1885 |
| Donald Carpenter | Son | — | 18 | ~1922 |
| Margaret Carpenter | Spouse | — | 54 | ~1886 |
Census Appearances
1910
Buena Vista, …
Head, age 25
Buena Vista, Iowa · implied b. ~1885 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Carpenter |
| Given Name | Frank D |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Married |
| Birthplace | Iowa |
| Years Married | 1 |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Iowa |
| Occupation | Farmer |
| Industry | General farm |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1920
Buena Vista, …
Head, age 35
Buena Vista, Iowa · implied b. ~1885 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Carpentier |
| Given Name | Frank |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Iowa |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Iowa |
| Occupation | Farmer |
| Industry | General Farm |
| Class of Worker | Emp |
| Can Read | No |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | R |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Buena Vista, …
Head, age 45
Buena Vista, Iowa · implied b. ~1885 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Carpenter |
| Given Name | Frank L |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | Iowa |
| Age at First Marriage | 24 |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Iowa |
| Occupation | Farmer |
| Industry | General Farm |
| Class of Worker | O |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Radio Set | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Buena-Vista-County, Iowa
Head, age 55
Buena-Vista-County, Iowa · implied b. ~1885 — 4 household members
| Surname | Carpenter |
| Given Name | Frank J |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 55 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Nokomis |
| 1935 Residence (County) | Buena Vista |
| Industry | 5 |
| Class of Worker | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same house |
| 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 Frank Carpenter across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Frank Carpenter
Head · 1940 · age 55 · b. ~1885 · Iowa
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Buena-Vista-County, Iowa
Open full size
1940 US Federal Census — Buena-Vista-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01143-00315)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Augusta A Norlin | 52 | Wife | — | Sweden |
| 42 | Carl H Norlin | 22 | Son | — | Iowa |
| 43 | Ernest R Norlin | 20 | Son | — | Iowa |
| 44 | Arthur T Carlson | 32 | Head | — | Iowa |
| 45 | Gladys M Carlson | 29 | Wife | — | Iowa |
| 46 | Myrtle E Carlson | 8 | Daughter | — | Iowa |
| 47 | Arlon A Carlson | 5 | Son | — | Iowa |
| 48 | Donald H Carlson | 1 | Son | — | Iowa |
| 49 | Frank J Carpenter THIS PERSON | 55 | Head | — | Iowa |
| 50 | Margaret M Carpenter | 54 | Wife | — | Illinois |
| 51 | Donald E Carpenter | 18 | Son | — | Iowa |
| 52 | Lyle D Carpenter | 13 | Son | — | Iowa |
| 53 | Gust A Johnson | 51 | Head | — | Sweden |
| 54 | Ruth A Johnson | 20 | Daughter | — | Iowa |
| 55 | Dorothy A Johnson | 15 | Daughter | — | Iowa |
| 56 | Ernest Gustafson | 24 | Hired hand | Farm Laborer | Iowa |
| 57 | Alvin H Buckingham | 54 | Head | — | Iowa |
| 58 | Craig A Buckingham | 22 | Son | — | Iowa |
| 59 | Francis J Buckingham | 19 | Daughter | — | Iowa |
| 60 | Olive Buckingham | 77 | Mother | — | Illinois |
| 61 | James E Mcculla | 26 | Head | Farm Laborer | Iowa |
| 62 | Viola M Mcculla | 20 | Wife | — | Iowa |
| 63 | James E Johnson | 60 | Head | — | Illinois |
| 64 | Helen A Johnson | 45 | Wife | — | N. Dak. |
| 65 | Marvin M Johnson | 25 | Son | — | N. Dak. |
| 66 | Mabyn A Johnson | 19 | Daughter | — | Minnesota |
| 67 | Oscar J Johnson | 17 | Son | — | Minnesota |
| 68 | Carl E Magnuson | 47 | Head | — | Sweden |
| 69 | Jennie Magnuson | 44 | Wife | — | Sweden |
| 70 | C. Robert Magnuson | 15 | Son | — | Iowa |
| 71 | Doris M Magnuson | 13 | Daughter | — | Iowa |
| 72 | Curtis A Nelson | 35 | Head | — | Iowa |
| 73 | Almira Nelson | 33 | Wife | — | Iowa |
| 74 | Lenore A Nelson | 13 | Daughter | — | Iowa |
| 75 | Oscar M Nelson | 78 | Father | — | Illinois |
| 76 | Cecil C Wall | 37 | Head | — | Iowa |
| 77 | Florence Wall | 31 | Wife | — | Iowa |
| 78 | James L Wall | 8 | Son | — | Iowa |
| 79 | Donald K Wall | 5 | Son | — | Iowa |
| 80 | Nels P Nygard | 52 | Head | — | Denmark |
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)