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Clara Nelson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Clay-County, Minnesota
Our Model Tree links this Clara Nelson across the 1920, 1930 and 1940 US Censuses in Clay-County, Minnesota (XGBoost, ~Confirmed) — first a spouse (b.~1892), then head of a 3-person household.
Age 48
b. ~1892
Female
Spouse
Born: North Dakota
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Clay-County, Minnesota |
| Surname | Nelson |
| Given Name | Clara C. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 48 |
| Marital Status | Married |
| Birthplace | North Dakota |
| 1935 Residence (City) | Morken |
| 1935 Residence (County) | Clay |
| Additional Details | |
| Class of Worker | H |
| Hours Worked | 5 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | North Dakota |
| Birth Country | United States |
| Birthplace (normalized) | north dakota |
| Township / Ward | Morken |
| Est. Birth Year | ~1892 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Clara | Age | Birth yr |
|---|---|---|---|---|
| Edmund Nelson | Son | — | 22 | ~1918 |
| Andrew Nelson | Head | — | 51 | ~1889 |
| Clara Nelson | Spouse | — | 48 | ~1892 |
Census Appearances
1920
Clay, Minnesota
Spouse, age 28
Clay, Minnesota · implied b. ~1892 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nelson |
| Given Name | Clara C |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 28 |
| Marital Status | Married |
| Birthplace | North Dakota |
| Father's Birthplace | Norway |
| Mother's Birthplace | Minnesota |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Norwegian |
| Birth State | North Dakota |
| Birth Country | United States |
| Birthplace (normalized) | north dakota |
1930
Clay, Minnesota
Spouse, age 38
Clay, Minnesota · implied b. ~1892 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nelson |
| Given Name | Clara S. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 38 |
| Marital Status | Married |
| Birthplace | North Dakota |
| Age at First Marriage | 25 |
| Father's Birthplace | Norway |
| Mother's Birthplace | Minnesota |
| Can Read/Write | Yes |
| Birth State | North Dakota |
| Birth Country | United States |
| Birthplace (normalized) | north dakota |
1940
Clay-County, Minnesota
Spouse, age 48
Clay-County, Minnesota · implied b. ~1892 — 3 household members
| Surname | Nelson |
| Given Name | Clara C. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 48 |
| Marital Status | Married |
| Birthplace | North Dakota |
| 1935 Residence (City) | Morken |
| 1935 Residence (County) | Clay |
| Class of Worker | H |
| Hours Worked | 5 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | North Dakota |
| Birth Country | United States |
| Birthplace (normalized) | north dakota |
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 Clara Nelson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Clara Nelson
Spouse · 1940 · age 48 · b. ~1892 · Minnesota
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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 — Clay-County, Minnesota
Open full size
1940 US Federal Census — Clay-County, Minnesota
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01914-00664)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Laura Olsen | 45 | Wife | — | Minnesota |
| 42 | Otto Svenkeson | 55 | Head | Farmer | Minnesota |
| 43 | Ingeborg Svenkeson | 35 | Wife | — | Minnesota |
| 44 | Ida L. Svenkeson | 8 | Daughter | — | Minnesota |
| 45 | Andrew O. Svenkeson | 6 | Son | — | Minnesota |
| 46 | Elsie Ann Svenkeson | 1 | Daughter | — | Minnesota |
| 47 | Martin H. Stold | 65 | Head | Farmer | Norway |
| 48 | Mina Stold | 49 | Wife | — | Minnesota |
| 49 | Ethel J. Stold | 19 | Daughter | — | Minnesota |
| 50 | Della M. Stold | 14 | Daughter | — | Minnesota |
| 51 | Laura I. Hanson | 57 | Head | — | Minnesota |
| 52 | Arthur S. Hanson | 27 | Son | Farmer | Minnesota |
| 53 | Walter S. Hanson | 23 | Son | Farmer | Minnesota |
| 54 | Norman L. Hanson | 20 | Son | Farmer | Minnesota |
| 55 | Martin A. Morken | 54 | Head | Farmer | Minnesota |
| 56 | Emma Morken | 56 | Wife | — | Wisconsin |
| 57 | Sidney Morken | 25 | Son | Farm Laborer | Minnesota |
| 58 | Alvin Morken | 23 | Son | Farm Laborer | Minnesota |
| 59 | Mildred Morken | 20 | Daughter | Housekeeper | Minnesota |
| 60 | Ole Matson | 71 | Head | Farmer | Sweden |
| 61 | Bertha H. Matson | 60 | Wife | — | Minnesota |
| 62 | Harry L. Matson | 29 | Son | Farmer | Minnesota |
| 63 | Evalyn L. Matson | 27 | Daughter | Housekeeper | Minnesota |
| 64 | Gladys E. Matson | 25 | Daughter | Housekeeper | Minnesota |
| 65 | Clarence R. Matson | 22 | Son | Farmer | Minnesota |
| 66 | Christ P. Hansen | 54 | Head | Farmer | Denmark |
| 67 | Maren Hansen | 44 | Wife | — | Denmark |
| 68 | Edwin Mjonaas | 52 | Head | Farmer | Minnesota |
| 69 | Lenora Mjonaas | 52 | Wife | — | Minnesota |
| 70 | Leroy Mjonaas | 24 | Son | Farm Laborer | Minnesota |
| 71 | Lavern Mjonaas | 21 | Son | Farm Laborer | Minnesota |
| 72 | Sara Ostrem | 72 | Head | — | Minnesota |
| 73 | Oscar Ostrem | 47 | Son | Farmer | Minnesota |
| 74 | Norman Ostrem | 45 | Son | Farmer | Minnesota |
| 75 | Alfred Ostrem | 43 | Son | Farmer | Minnesota |
| 76 | Mable Wilson | 34 | Daughter | Housekeeper | Minnesota |
| 77 | Emil Johnson | 34 | Laborer | Farm Laborer | Minnesota |
| 78 | Andrew E. Nelson | 51 | Head | Farmer | Minnesota |
| 79 | Clara C. Nelson THIS PERSON | 48 | Wife | — | North Dakota |
| 80 | Edmund O. Nelson | 22 | Son | Farmer | Minnesota |
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)