AN
Andrew Nelson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Cooper-County, Missouri
Our Model Tree links this Andrew Nelson across the 1920, 1930 and 1940 US Censuses in Cooper-County, Missouri (XGBoost, ~Confirmed), with identified parents Nelson & W — first a son (b.~1901), then head of a 4-person household.
Age 39
b. ~1901
Male
Son
Born: Missouri
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cooper-County, Missouri |
| Surname | Nelson |
| Given Name | Andrew |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 39 |
| Marital Status | Single |
| Birthplace | Missouri |
| 1935 Residence (City) | Saline Township |
| 1935 Residence (County) | Cooper |
| Additional Details | |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 54 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
| Occupation | Farmer |
| Township / Ward | Saline Township |
| Est. Birth Year | ~1901 |
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 Andrew | Age | Birth yr |
|---|---|---|---|---|
| Julia Nelson | Daughter | — | 34 | ~1906 |
| William Nelson | Head | — | 72 | ~1868 |
| Andrew Nelson | Son | — | 39 | ~1901 |
| William Nelson | Son | — | 42 | ~1898 |
Census Appearances
1920
Cooper, Missouri
Son, age 18
Cooper, Missouri · implied b. ~1902 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nelson |
| Given Name | Andrew |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Missouri |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Missouri |
| Occupation | Farmer |
| Industry | Father's farm |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
1930
Cooper, Missouri
Son, age 29
Cooper, Missouri · implied b. ~1901 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nelson |
| Given Name | Andrew O |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Single |
| Birthplace | Missouri |
| Age at First Marriage | 29 |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Missouri |
| Can Read/Write | Yes |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
1940
Cooper-County, Missouri
Son, age 39
Cooper-County, Missouri · implied b. ~1901 — 4 household members
| Surname | Nelson |
| Given Name | Andrew |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 39 |
| Marital Status | Single |
| Birthplace | Missouri |
| 1935 Residence (City) | Saline Township |
| 1935 Residence (County) | Cooper |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 54 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
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 Andrew Nelson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Nelson 141 (~0.92 confidence) and father W Nelson (~0.92 confidence) and mother Mary Nelson (~0.92 confidence) and mother William Nelson (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Nelson 141
b. ~1859
Source father
● Household
· direct · ~0.92
Father
W Nelson
b. ~1860
Source father
● Household
· direct · ~0.92
Mother
Mary Nelson
b. ~1867
Source mother
● Household
· direct · ~0.92
Mother
William Nelson
b. ~1868
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Andrew Nelson
Son · 1940 · age 39 · b. ~1901 · Missouri
★ You are viewing this record
Sibling
Julia Nelson
Sibling · 1940 · age 34
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Nelson
Sibling · 1940 · age 42
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 — Cooper-County, Missouri
Open full size
1940 US Federal Census — Cooper-County, Missouri
Page Contents
36 people indexed on this census page (nara:1940:m-t0627-02100-00407)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Caroline Dorothy Niebruegge | 13 | Daughter | — | Missouri |
| 42 | Elsie Mae Niebruegge | 10 | Daughter | — | Missouri |
| 43 | William Leroy Niebruegge | 8 | Son | — | Missouri |
| 44 | Herman H. Siedenberg | 40 | Head | Farmer | Iowa |
| 45 | Emma L. Siedenberg | 50 | Wife | — | Missouri |
| 46 | Bernice Marjorie Siedenberg | 14 | Daughter | — | Iowa |
| 47 | Arthur Henry Siedenberg | 11 | Son | — | Missouri |
| 48 | Vera Ann Siedenberg | 10 | Daughter | — | Missouri |
| 49 | Jesse T. Heine | 64 | Head | — | Missouri |
| 50 | Walter J. Heine | 31 | Son | Farmer | Missouri |
| 51 | Edna Heine | 34 | Daughter-in-law | Private Home | Missouri |
| 52 | Clarence Stewart | 31 | Head | Laborer | Missouri |
| 53 | Thelma L. Stewart | 32 | Wife | — | Missouri |
| 54 | Charles Clay | 45 | Head | Farmer | Missouri |
| 55 | Essie Clay | 54 | Wife | — | Missouri |
| 56 | Charles Jr. Clay | 19 | Son | Truck Driver | Missouri |
| 57 | Henry Vieth | 60 | Head | Farmer | Germany |
| 58 | Emma Vieth | 56 | Wife | — | Missouri |
| 59 | Marie A. Wassmann | 24 | Daughter | — | Missouri |
| 60 | John H. Jr. Wassmann | 25 | Son-in-law | Farmer | Missouri |
| 61 | John H. Knipker | 55 | Head | Blacksmith | Missouri |
| 62 | Florence J. Knipker | 48 | Wife | — | Missouri |
| 63 | John Lewis Knipker | 11 | Son | — | Missouri |
| 64 | Frankie E. Morgan | 13 | Foster-son | — | Missouri |
| 65 | William Mary E. Nelson | 72 | Head | — | Missouri |
| 66 | William Nelson | 42 | Son | Farmer | Missouri |
| 67 | Andrew Nelson THIS PERSON | 39 | Son | Farmer | Missouri |
| 68 | Julia Nelson | 34 | Daughter | — | Missouri |
| 69 | Willie S. Clay | 62 | Head | Farmer | Missouri |
| 70 | Eugene A. Barlow | 34 | Head | Shipping Clerk | Missouri |
| 71 | Mary M. Barlow | 38 | Wife | — | Missouri |
| 72 | Edgar L. Drew | 51 | Head | Farmer | Missouri |
| 73 | Beverly Drew | 17 | Son | — | Missouri |
| 74 | Lonnie V. Drew | 13 | Son | — | Missouri |
| 75 | William Lee Drew | 11 | Son | — | Missouri |
| 76 | Mary L. Shumate | 74 | Head | — | Missouri |
Pedigree Summary
Andrew + 2 siblings
Gen 1 · 4 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)