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Clarence Nelson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Clearwater-County, Minnesota
Our Model Tree links this Clarence Nelson across the 1910, 1920, 1930 and 1940 US Censuses in Clearwater-County, Minnesota (XGBoost, ~Confirmed), with identified parents Alfred — first a head (b.~1905), then head of a 4-person household.
Age 35
b. ~1905
Male
Head
Born: Minnesota
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Clearwater-County, Minnesota |
| Surname | Nelson |
| Given Name | Clarence A |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Minnesota |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Clearwater |
| Additional Details | |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 72 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Minnesota |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
| Occupation | Farmer |
| Township / Ward | Holst Twp |
| Est. Birth Year | ~1905 |
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 Clarence | Age | Birth yr |
|---|---|---|---|---|
| Vern Nelson | Daughter | — | 5 | ~1935 |
| Velva Nelson | Daughter | — | 3 | ~1937 |
| Clarence Nelson | Head | — | 35 | ~1905 |
| Alice Nelson | Spouse | — | 30 | ~1910 |
Census Appearances
1910
Clearwater, Minnesota
Son, age 4
Clearwater, Minnesota · implied b. ~1906 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nelson |
| Given Name | Clarence |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Illinois |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1920
Clearwater, Minnesota
Son, age 14
Clearwater, Minnesota · implied b. ~1906 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nelson |
| Given Name | Clarence |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Illinois |
| Occupation | Farm Laborer |
| Industry | Home Farm |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Danish |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1930
Clearwater, Minnesota
Son, age 24
Clearwater, Minnesota · implied b. ~1906 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nelson |
| Given Name | Clarence |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Illinois |
| Occupation | Farm Laborer |
| Industry | General Farm |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1940
Clearwater-County, Minnesota
Head, age 35
Clearwater-County, Minnesota · implied b. ~1905 — 4 household members
| Surname | Nelson |
| Given Name | Clarence A |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Minnesota |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Clearwater |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 72 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Minnesota |
| 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 Clarence Nelson across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Alfred Nelson (~0.92 confidence). The pedigree spans 1 generation with 1 identified ancestor.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Alfred Nelson
b. ~1866
Source father
● Household
· direct · ~0.92
This person
Anchor record
Clarence Nelson
Head · 1940 · age 35 · b. ~1905 · Minnesota
★ 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 — Clearwater-County, Minnesota
Open full size
1940 US Federal Census — Clearwater-County, Minnesota
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01914-00949)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Andrew Anderson | 45 | Head | — | Minnesota |
| 2 | Alpha S Anderson | 45 | Wife | — | Minnesota |
| 3 | Muriel Anderson | 18 | Daughter | — | Minnesota |
| 4 | Phyllis Anderson | 16 | Daughter | — | Minnesota |
| 5 | Warren Anderson | 14 | Son | — | Minnesota |
| 6 | Iona Anderson | 11 | Daughter | — | Minnesota |
| 7 | Arthur O Norlein | 52 | Head | Rancher | Sweden |
| 8 | Olive Norlein | 32 | Wife | — | North Dakota |
| 9 | Nadine Norlein | 2 | Daughter | — | Minnesota |
| 10 | Chester Sandberg | 18 | Hired man | Ranch Labor | Colorado |
| 11 | George Walburg | 32 | Hired man | Ranch Labor | Minnesota |
| 12 | Victor O Lindberg | 51 | Head | Farmer | Minnesota |
| 13 | Vincent Lindberg | 22 | Son | Farm Laborer | Minnesota |
| 14 | Kermit Lindberg | 12 | Son | — | Minnesota |
| 15 | Leroy Lindberg | 10 | Son | — | Minnesota |
| 16 | Benny Paulson | 38 | Head | Farmer | Minnesota |
| 17 | Martha O Paulson | 33 | Wife | — | Norway |
| 18 | Doris A Paulson | 16 | Daughter | — | Minnesota |
| 19 | Dagney Paulson | 13 | Daughter | — | Minnesota |
| 20 | Ardell Paulson | 12 | Daughter | — | Minnesota |
| 21 | Dennis Paulson | 9 | Son | — | Minnesota |
| 22 | Gordon Paulson | 8 | Son | — | Minnesota |
| 23 | Harry Larson | 38 | Head | Farmer | Minnesota |
| 24 | Iena R Larson | 36 | Wife | — | Minnesota |
| 25 | Leroy Larson | 12 | Son | — | Minnesota |
| 26 | Arvid A Engdahl | 57 | Head | Farmer | Sweden |
| 27 | Betty Engdahl | 48 | Wife | — | Minnesota |
| 28 | Wallace Engdahl | 17 | Son | Farm Laborer | Minnesota |
| 29 | Wallace Engdahl | 15 | Son | — | Minnesota |
| 30 | Donald Engdahl | 13 | Son | — | Minnesota |
| 31 | Davona Engdahl | 11 | Daughter | — | Minnesota |
| 32 | Edla Engdahl | 9 | Daughter | — | Minnesota |
| 33 | Clarence A Nelson THIS PERSON | 35 | Head | Farmer | Minnesota |
| 34 | Alice Nelson | 30 | Wife | — | Minnesota |
| 35 | Vern Nelson | 5 | Daughter | — | Minnesota |
| 36 | Velva Nelson | 3 | Daughter | — | Minnesota |
| 37 | Leif Tangseth | 31 | Head | Farmer | Canada |
| 38 | Mabel O Tangseth | 26 | Wife | — | English |
| 39 | Edward Tangseth | 5 | Son | — | Canada |
| 40 | Ellen Tangseth | 65 | Mother | — | Norway |
Pedigree Summary
Clarence
Gen 1 · 1 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)