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Alfred Nelson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Palo-Alto-County, Iowa
Our Model Tree links this Alfred Nelson across the 1900, 1910, 1920, 1930 and 1940 US Censuses in Palo-Alto-County, Iowa (XGBoost, ~Confirmed), with identified parents John & Johanna — first a head (b.~1888), then head of a 4-person household.
Age 52
b. ~1888
Male
Head
Born: Iowa
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Palo-Alto-County, Iowa |
| Surname | Nelson |
| Given Name | Alfred P |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 52 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Lost Island Twp |
| 1935 Residence (County) | Palo Alto |
| Additional Details | |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 40 |
| Income (1939) | 520 |
| Highest Grade | 8 |
| 1935 Residence | Same house |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Farmer |
| Township / Ward | Lost Island Twp |
| Est. Birth Year | ~1888 |
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 Alfred | Age | Birth yr |
|---|---|---|---|---|
| Lois Nelson | Daughter | — | 13 | ~1927 |
| Julia Nelson | Spouse | — | 51 | ~1889 |
| Raymond Nelson | Son | — | 26 | ~1914 |
| Alfred Nelson | Head | — | 52 | ~1888 |
Census Appearances
1900
Palo Alto, …
Son, age 12
Palo Alto, Iowa · implied b. ~1888 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nelson |
| Given Name | Alfred |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Iowa |
| Birth Month | Mar |
| Birth Year | 1888 |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Denmark |
| Occupation | at School |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1910
Palo Alto, …
Son, age 22
Palo Alto, Iowa · implied b. ~1888 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nelson |
| Given Name | Alfred |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Denmark |
| Occupation | Farm laborer |
| Industry | Home farm |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1920
Palo Alto, …
Head, age 31
Palo Alto, Iowa · implied b. ~1889 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nelson |
| Given Name | Alfred |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Iowa |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Denmark |
| Occupation | Farmer |
| Industry | Gen farm |
| Class of Worker | Emp |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | O |
| Home Free/Mortgaged | M |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Palo Alto, …
Head, age 42
Palo Alto, Iowa · implied b. ~1888 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nelson |
| Given Name | Alfred |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 42 |
| Marital Status | Married |
| Birthplace | Iowa |
| Age at First Marriage | 24 |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Denmark |
| Occupation | Farmer |
| Industry | General Farm |
| Class of Worker | OA |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Palo-Alto-County, Iowa
Head, age 52
Palo-Alto-County, Iowa · implied b. ~1888 — 4 household members
| Surname | Nelson |
| Given Name | Alfred P |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 52 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Lost Island Twp |
| 1935 Residence (County) | Palo Alto |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 40 |
| Income (1939) | 520 |
| Highest Grade | 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 Alfred Nelson across 5 US Census years (1900, 1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Nelson (~0.92 confidence) and mother Johanna Nelson (~0.92 confidence) and mother Mary Nelson (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Nelson
b. ~1847
Source father
● Household
· direct · ~0.92
Mother
Johanna Nelson
b. ~1870
Source mother
● Household
· direct · ~0.92
Mother
Mary Nelson
b. ~1861
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Alfred Nelson
Head · 1940 · age 52 · b. ~1888 · 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 — Palo-Alto-County, Iowa
Open full size
1940 US Federal Census — Palo-Alto-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01189-00291)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Frank D Elambert|Clambert | 38 | Head | Farmer | Iowa |
| 2 | Bernice Elambert|Clambert | 39 | Wife | — | Iowa |
| 3 | Agnes Elambert|Clambert | 10 | Daughter | — | Iowa |
| 4 | Bernard Elambert|Clambert | 7 | Son | — | Iowa |
| 5 | John Elambert|Clambert | 4 | Son | — | Iowa |
| 6 | Donald D Conney | 18 | Hired hand | Farm Laborer | Iowa |
| 7 | Petra Nelson | 54 | Head | — | Denmark |
| 8 | Charles A Methell|Mitchell | 40 | Head | Farmer | Iowa |
| 9 | Lilly Methell|Mitchell | 34 | Wife | — | Iowa |
| 10 | Orville Methell|Mitchell | 14 | Son | — | Iowa |
| 11 | Lyle Methell|Mitchell | 12 | Son | — | Iowa |
| 12 | Virgil Methell|Mitchell | 9 | Son | — | Iowa |
| 13 | Alfred P Nelson THIS PERSON | 52 | Head | Farmer | Iowa |
| 14 | Julia Nelson | 51 | Wife | — | Iowa |
| 15 | Raymond A Nelson | 26 | Son | — | Iowa |
| 16 | Lois Nelson | 13 | Daughter | — | Iowa |
| 17 | Henry O Dure | 53 | Head | Farmer | Iowa |
| 18 | Emma Dure | 54 | Wife | — | Iowa |
| 19 | Ernest Dure | 24 | Son | Farmer | Iowa |
| 20 | Claus D Kelting | 68 | Head | Farmer | Germany |
| 21 | Dorothy Kelting | 58 | Wife | — | Germany |
| 22 | Harry D Tampion|Lampion | 48 | Head | Farmer | Iowa |
| 23 | Edna Tampion|Lampion | 44 | Wife | — | Iowa |
| 24 | George Tampion|Lampion | 56 | Brother | Farm Laborer | Iowa |
| 25 | Margaret H Rustan | 8 | Niece | — | Iowa |
| 26 | Ludwig Boehmer | 55 | Head | Farmer | Iowa |
| 27 | Bertha D Boehmer | 36 | Wife | — | Iowa |
| 28 | Mad D Vollmert | 44 | Head | Farmer | Iowa |
| 29 | Greta Vollmert | 39 | Wife | — | Iowa |
| 30 | Alfred Vollmert | 15 | Son | — | Iowa |
| 31 | Lillian Vollmert | 14 | Daughter | — | Iowa |
| 32 | Raymond Vollmert | 12 | Son | — | Iowa |
| 33 | Kenneth Vollmert | 8 | Son | — | Iowa |
| 34 | Martin D Baedke | 31 | Head | Farmer | Iowa |
| 35 | Amanda Baedke | 30 | Wife | — | Oklahoma |
| 36 | Eugene Baedke | 8 | Son | — | Iowa |
| 37 | Iris A Baedke | 6 | Daughter | — | Iowa |
| 38 | Martin L Baedke | 2 | Son | — | Iowa |
| 39 | Claude L Sanders | 49 | Head | Farmer | Iowa |
| 40 | Margaret Sanders | 48 | Wife | — | Iowa |
Pedigree Summary
Alfred
Gen 1 · 3 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)