MN
Mildred Nelson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Clay-County, Minnesota
Our Model Tree links this Mildred Nelson across the 1920, 1930 and 1940 US Censuses in Clay-County, Minnesota (XGBoost, ~Confirmed), with identified parents Chris & Christian — first a daughter (b.~1915), then head of a 5-person household.
Age 25
b. ~1915
Female
Daughter
Born: Minnesota
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Clay-County, Minnesota |
| Surname | Nelson |
| Given Name | Mildred |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Minnesota |
| 1935 Residence (City) | Skree Township |
| 1935 Residence (County) | Clay |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same House |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
| Township / Ward | Skree Township |
| Est. Birth Year | ~1915 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mildred | Age | Birth yr |
|---|---|---|---|---|
| Mildred Nelson | Daughter | — | 25 | ~1915 |
| Chris Nelson | Head | — | 54 | ~1886 |
| Oris Nelson | Son | — | 17 | ~1923 |
| Clayton Nelson | Son | — | 21 | ~1919 |
| Olea Nelson | Spouse | — | 44 | ~1896 |
Census Appearances
1920
Clay, Minnesota
Daughter, age 4
Clay, Minnesota · implied b. ~1916 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nelson |
| Given Name | Mildred |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Minnesota |
| Mother's Birthplace | Minnesota |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1930
Clay, Minnesota
Daughter, age 15
Clay, Minnesota · implied b. ~1915 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nelson |
| Given Name | Mildred |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Minnesota |
| Mother's Birthplace | Minnesota |
| Can Read/Write | Yes |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1940
Clay-County, Minnesota
Daughter, age 25
Clay-County, Minnesota · implied b. ~1915 — 5 household members
| Surname | Nelson |
| Given Name | Mildred |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Minnesota |
| 1935 Residence (City) | Skree Township |
| 1935 Residence (County) | Clay |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same House |
| 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 Mildred Nelson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Chris Nelson (~0.92 confidence) and father Christian Nelson (~0.92 confidence) and mother Olea Nelson (~0.92 confidence) and mother Olga Nelson (~0.92 confidence) and mother Olga Nelson (~0.60 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.86
Father
Chris Nelson
b. ~1886
Source father
● Household
· direct · ~0.92
Father
Christian Nelson
b. ~1890
Source father
● Household
· direct · ~0.92
Mother
Olea Nelson
b. ~1896
Source mother
● Household
· direct · ~0.92
Mother
Olga Nelson
b. ~1896
Source mother
● Household
· direct · ~0.92
Mother
Olga Nelson
b. ~1907
Source mother
● Household
· direct · ~0.6
This person
Anchor record
Mildred Nelson
Daughter · 1940 · age 25 · b. ~1915 · Minnesota
★ You are viewing this record
Sibling
Clayton Nelson
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Oris Nelson
Sibling · 1940 · age 17
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 — 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-t0627-01914-00717)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Mendrum, Conrad Alm | 80 | Lodger | — | Norway |
| 42 | Joe Lewis | 53 | Head | Farmer | Iowa |
| 43 | Harry Frederickson | 35 | Head | Farmer | Minnesota |
| 44 | Martha Frederickson | 33 | Wife | — | Minnesota |
| 45 | Curtis Frederickson | 5 | Son | — | Minnesota |
| 46 | Doris Anne Frederickson | 1 | Daughter | — | Minnesota |
| 47 | George Bergen | 45 | Head | Farmer | Minnesota |
| 48 | Maggie Bergen | 29 | Wife | — | Minnesota |
| 49 | Richard Bergen | 6 | Son | — | Minnesota |
| 50 | Gary Bergen | 3 | Son | — | Minnesota |
| 51 | Chris Nelson | 54 | Head | Farmer | Minnesota |
| 52 | Olea Nelson | 44 | Wife | — | Minnesota |
| 53 | Mildred Nelson THIS PERSON | 25 | Daughter | — | Minnesota |
| 54 | Clayton Nelson | 21 | Son | Laborer | Minnesota |
| 55 | Oris Nelson | 17 | Son | Laborer | Minnesota |
| 56 | Carl Vanson | 58 | Head | Farmer | Minnesota |
| 57 | Hilmer Vanson | 45 | Brother | Farmer | Minnesota |
| 58 | Ella Vanson | 48 | Sister | Maid | Minnesota |
| 59 | Sigurd Knageburg | 25 | Hired Hand | Laborer | Minnesota |
| 60 | Charles Nelson | 31 | Head | Farmer | Minnesota |
| 61 | Velinda Nelson | 32 | Wife | — | Minnesota |
| 62 | Eplan Nelson | 4 | Son | — | Minnesota |
| 63 | Charles Jr Nelson | 2 | Son | — | Minnesota |
| 64 | Beverly Nelson | 1 | Daughter | — | Minnesota |
| 65 | Henry M Nelson | 42 | Head | Farmer | Minnesota |
| 66 | Mary Nelson | 40 | Wife | — | Minnesota |
| 67 | Marlowe Nelson | 3 | Son | — | Minnesota |
| 68 | Albin Valvorson | 36 | Head | Farmer | Minnesota |
| 69 | Lillian Valvorson | 33 | Wife | — | Minnesota |
| 70 | Harry Tweten | 25 | Hired Hand | Laborer | Minnesota |
| 71 | Chris Holat | 69 | Head | Farmer | Norway |
| 72 | Alfred B Nelson | 64 | Lodger | — | Minnesota |
| 73 | Chris Reverson | 63 | Head | Farmer | Norway |
| 74 | Vesta Reverson | 66 | Wife | — | Canada |
| 75 | Charles Reverson | 39 | Son | Laborer | Minnesota |
| 76 | John Reverson | 25 | Son | Laborer | Minnesota |
| 77 | Martha Anderson | 30 | Lodger | Teacher | Minnesota |
| 78 | Jorgen Sorum | 25 | Head | Farmer | Minnesota |
| 79 | Karen Sorum | 73 | Mother | — | Norway |
| 80 | Jorgen Sorum | 74 | Father | — | Norway |
Pedigree Summary
Mildred + 2 siblings
Gen 1 · 5 parents
~0.86
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)