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Clarence Nelson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Chisago-County, Minnesota
Our Model Tree links this Clarence Nelson across the 1900, 1910, 1920, 1930 and 1940 US Censuses in Chisago-County, Minnesota (XGBoost, ~Confirmed), with identified parents Carl & Charles — first a head (b.~1889), then head of a 4-person household.
Age 51
b. ~1889
Male
Head
Born: Minnesota
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Chisago-County, Minnesota |
| Surname | Nelson |
| Given Name | Clarence R. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | Minnesota |
| 1935 Residence (City) | Lent Township |
| 1935 Residence (County) | Chisago |
| Additional Details | |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 72 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
| Occupation | Farmer |
| Township / Ward | Lent Township |
| Est. Birth Year | ~1889 |
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 |
|---|---|---|---|---|
| Clarence Nelson | Head | — | 51 | ~1889 |
| James Nelson | Son | — | 25 | ~1915 |
| Donald Nelson | Son | — | 16 | ~1924 |
| Annie Nelson | Spouse | — | 51 | ~1889 |
Census Appearances
1900
Chisago, Minnesota
Son, age 12
Chisago, Minnesota · implied b. ~1888 — 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 | 11 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Birth Month | Nov |
| Birth Year | 1888 |
| Father's Birthplace | Minnesota |
| Mother's Birthplace | Sweden |
| Occupation | Farm Labour |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1910
Chisago, Minnesota
Son, age 21
Chisago, Minnesota · implied b. ~1889 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nelson |
| Given Name | Clarence P. R. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Minnesota |
| Mother's Birthplace | Sweden |
| Occupation | Farm Laborer |
| Industry | Home Farm |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1920
Chisago, Minnesota
Head, age 31
Chisago, Minnesota · implied b. ~1889 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nelson |
| Given Name | Clarence R. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Minnesota |
| Naturalization Status | Naturalized |
| Father's Birthplace | Minnesota |
| Mother's Birthplace | Sweden |
| Occupation | Farmer |
| Industry | General Farm |
| Class of Worker | Em |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Swedish |
| Home Owned/Rented | O |
| Home Free/Mortgaged | M |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1930
Chisago, Minnesota
Head, age 42
Chisago, Minnesota · implied b. ~1888 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nelson |
| Given Name | Clarence |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 42 |
| Marital Status | Married |
| Birthplace | Minnesota |
| Age at First Marriage | 21 |
| Father's Birthplace | Minnesota |
| Mother's Birthplace | Sweden |
| Occupation | Farmer |
| Industry | General Farm |
| Class of Worker | O |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Veteran | No |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1940
Chisago-County, Minnesota
Head, age 51
Chisago-County, Minnesota · implied b. ~1889 — 4 household members
| Surname | Nelson |
| Given Name | Clarence R. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | Minnesota |
| 1935 Residence (City) | Lent Township |
| 1935 Residence (County) | Chisago |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 72 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 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 Clarence Nelson across 5 US Census years (1900, 1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Carl Nelson (~0.92 confidence) and father Charles Nelson (~0.92 confidence) and mother Christina Nelson (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Carl Nelson
b. ~1861
Source father
● Household
· direct · ~0.92
Father
Charles Nelson
b. ~1861
Source father
● Household
· direct · ~0.92
Mother
Christina Nelson
b. ~1861
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Clarence Nelson
Head · 1940 · age 51 · b. ~1889 · 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 — Chisago-County, Minnesota
Open full size
1940 US Federal Census — Chisago-County, Minnesota
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01913-00685)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Clarence R. Nelson THIS PERSON | 51 | Head | Farmer | Minnesota |
| 42 | Annie E. Nelson | 51 | Wife | — | Minnesota |
| 43 | James A. Nelson | 25 | Son | Farm Laborer | Minnesota |
| 44 | Donald E. Nelson | 16 | Son | — | Minnesota |
| 45 | Thomas C. Barr | 23 | Head | Farmer | Montana |
| 46 | Esther L. Barr | 23 | Wife | — | Wisconsin |
| 47 | Winston S. Carlson | 41 | Head | Laborer | Minnesota |
| 48 | Dora E. Carlson | 40 | Wife | — | Minnesota |
| 49 | Irene E. Carlson | 11 | Daughter | — | Minnesota |
| 50 | August Olander | 65 | Head | Farmer | Sweden |
| 51 | Alma E. Olander | 59 | Wife | — | Minnesota |
| 52 | Minnie S. Mobeck | 48 | Head | Farmer | Minnesota |
| 53 | Helen J. Larson | 42 | Sister | School Teacher | Minnesota |
| 54 | Clifford S. Swanson | 34 | Head | Farmer | Minnesota |
| 55 | Irene E. Swanson | 32 | Wife | — | Minnesota |
| 56 | Dorothy Swanson | 9 | Daughter | — | Minnesota |
| 57 | Arlene P. Swanson | 6 | Daughter | — | Minnesota |
| 58 | Beverly M. Swanson | 4 | Daughter | — | Minnesota |
| 59 | Moses N. Mobeck | 42 | Head | Farmer | Minnesota |
| 60 | Reyland L. Mobeck | 52 | Brother | Farm Laborer | Minnesota |
| 61 | Morgan Mobeck | 40 | Brother | Farmer | Minnesota |
| 62 | Clifford H. Rask | 21 | Lodger | Farm Laborer | Minnesota |
| 63 | Hugo R. Anderson | 20 | Head | Farmer | Sweden |
| 64 | Amanda M. Anderson | 58 | Wife | — | Minnesota |
| 65 | Edward L. Anderson | 22 | Son | Farm Laborer | Minnesota |
| 66 | Gloria M. Anderson | 18 | Daughter | — | Minnesota |
| 67 | Gerald F. Anderson | 13 | Son | — | Minnesota |
| 68 | Chas. M. Masterson | 52 | Head | Farmer | Minnesota |
| 69 | Ellen C. Masterson | 44 | Wife | — | Minnesota |
| 70 | Lois L. Masterson | 18 | Daughter | — | Minnesota |
| 71 | Dorothy E. Masterson | 16 | Daughter | — | Minnesota |
| 72 | Chas. A. Masterson | 12 | Son | — | Minnesota |
| 73 | Melvin E. Masterson | 5 | Son | — | Minnesota |
| 74 | Irwin W. Masterson | 67 | Brother | Farmer | Minnesota |
| 75 | Victor L. Masterson | 62 | Brother | — | Wisconsin |
| 76 | John R. Pearson | 52 | Head | Farmer | Sweden |
| 77 | Elin Pearson | 53 | Wife | — | Sweden |
| 78 | Gustoff R. Pearson | 29 | Son | Auto Mobile Mechanic | Sweden |
| 79 | Dorothy M. Holstead | 22 | Lodger | School Teacher | Minnesota |
| 80 | Victor L. Swenson | 40 | Head | Mechanic | Minnesota |
Pedigree Summary
Clarence
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)