AN
Alfred Nelson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Olmsted-County, Minnesota
Our Model Tree links this Alfred Nelson across the 1920, 1930 and 1940 US Censuses in Olmsted-County, Minnesota (XGBoost, ~Confirmed), with identified parents Hans & Hans — first a son (b.~1907), then head of a 4-person household.
Age 33
b. ~1907
Male
Son
Born: Minnesota
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Olmsted-County, Minnesota |
| Surname | Nelson |
| Given Name | Alfred |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Single |
| Birthplace | Minnesota |
| 1935 Residence (City) | Kalmar Township |
| 1935 Residence (County) | Olmsted |
| Additional Details | |
| Occupation | Farm laborer |
| Industry | Farm |
| Class of Worker | PW |
| Hours Worked | 60 |
| Income (1939) | 475 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
| Occupation | Farm Laborer |
| Township / Ward | Kalmar Township |
| 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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Alfred | Age | Birth yr |
|---|---|---|---|---|
| Alfred Nelson | Son | — | 33 | ~1907 |
| Lloyd Nelson | Son | — | 20 | ~1920 |
| Hans Nelson | Head | — | 71 | ~1869 |
| Jessie Nelson | Spouse | — | 61 | ~1879 |
Census Appearances
1920
Olmsted, Minnesota
Son, age 13
Olmsted, Minnesota · implied b. ~1907 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nielsen |
| Given Name | Alfred |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Denmark |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1930
Olmsted, Minnesota
Son, age 23
Olmsted, Minnesota · implied b. ~1907 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nelsen |
| Given Name | Alfred |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Denmark |
| Occupation | Farm laborer |
| Industry | General farm |
| Class of Worker | VIVV |
| Can Read/Write | Yes |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1940
Olmsted-County, Minnesota
Son, age 33
Olmsted-County, Minnesota · implied b. ~1907 — 4 household members
| Surname | Nelson |
| Given Name | Alfred |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Single |
| Birthplace | Minnesota |
| 1935 Residence (City) | Kalmar Township |
| 1935 Residence (County) | Olmsted |
| Occupation | Farm laborer |
| Industry | Farm |
| Class of Worker | PW |
| Hours Worked | 60 |
| Income (1939) | 475 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
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 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Hans Nelson (~0.92 confidence) and father Hans Nielsen (~0.92 confidence) and father Hans Nelsen (~0.92 confidence) and mother Jessie Nelson (~0.92 confidence) and mother Laura Nelsen (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Hans Nelson
b. ~1869
Source father
● Household
· direct · ~0.92
Father
Hans Nielsen
b. ~1863
Source father
● Household
· direct · ~0.92
Father
Hans Nelsen
b. ~1869
Source father
● Household
· direct · ~0.92
Mother
Jessie Nelson
b. ~1879
Source mother
● Household
· direct · ~0.92
Mother
Laura Nelsen
b. ~1879
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Alfred Nelson
Son · 1940 · age 33 · b. ~1907 · Minnesota
★ You are viewing this record
Sibling
Lloyd Nelson
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Olmsted-County, Minnesota
Open full size
1940 US Federal Census — Olmsted-County, Minnesota
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-01943-00671)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Gerald E Morris | 39 | Head | Farmer | Iowa |
| 2 | Grace Morris | 31 | Wife | — | Indiana |
| 3 | Carol Morris | 11 | daughter | — | Minnesota |
| 4 | Barbara Morris | 5 | daughter | — | Minnesota |
| 5 | Donald Morris | 3 | son | — | Minnesota |
| 6 | Dale Morris | 1 | son | — | Minnesota |
| 7 | Amanda Evans | 70 | mother-in-law | — | Illinois |
| 8 | Arthur D Brown | 51 | Head | Farmer | Minnesota |
| 9 | Iva Brown | 46 | wife | — | Minnesota |
| 10 | Clara Mae Brown | 13 | daughter | — | Minnesota |
| 11 | Harry D Helm | 42 | Head | Farmer | Minnesota |
| 12 | Agatha Helm | 28 | wife | — | Minnesota |
| 13 | William Helm | 16 | son | — | Minnesota |
| 14 | Floyd D Peterson | 46 | Head | Farmer | Iowa |
| 15 | Bernice Peterson | 37 | wife | — | Minnesota |
| 16 | Arlene Peterson | 18 | daughter | Servant | Minnesota |
| 17 | Dallas Peterson | 15 | son | — | Minnesota |
| 18 | June Peterson | 12 | daughter | — | Minnesota |
| 19 | Gail Peterson | 2 | daughter | — | Minnesota |
| 20 | Steve Paquin | 22 | hired hand | Farm Laborer | South Dakota |
| 21 | Howard D Barth | 29 | Head | Farmer | Minnesota |
| 22 | Mabel Barth | 30 | wife | — | Wisconsin |
| 23 | Carrie Barth | 9 | daughter | — | Minnesota |
| 24 | Helene Barth | 7 | daughter | — | Minnesota |
| 25 | Wayne Barth | 3 | son | — | Minnesota |
| 26 | Nels Legre | 28 | hired hand | Farm Laborer | Norway |
| 27 | Andrew K Hansen | 46 | Head | Laborer | Norway |
| 28 | Nellie M Hansen | 49 | wife | — | Minnesota |
| 29 | Charles Hansen | 14 | son | — | Minnesota |
| 30 | Doris Hansen | 12 | daughter | — | Minnesota |
| 31 | Willard Hansen | 11 | son | — | Minnesota |
| 32 | Margaret Hansen | 9 | daughter | — | Minnesota |
| 33 | Hans D Nelson | 71 | Head | — | Denmark |
| 34 | Jessie Nelson | 61 | wife | — | Denmark |
| 35 | Alfred Nelson THIS PERSON | 33 | son | Farm Laborer | Minnesota |
| 36 | Lloyd Nelson | 20 | son | Farm Laborer | Minnesota |
| 37 | Thomas Tinkerd | 54 | Head | Farmer | Norway |
| 38 | Marie Tinkerd | 56 | wife | — | Norway |
| 39 | Roy D Parks | 52 | Head | Farmer | Minnesota |
Pedigree Summary
Alfred + 1 sibling
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)