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Helen Mcdonald — 1940 US Census Record
Model Tree available1940 United States Federal Census · Morgan-County, Missouri
Our Model Tree links this Helen Mcdonald across the 1920, 1930 and 1940 US Censuses in Morgan-County, Missouri (XGBoost, ~Confirmed), with identified parents P & Patrick — first a daughter (b.~1904), then head of a 4-person household.
Age 36
b. ~1904
Female
Daughter
Born: Missouri
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Morgan-County, Missouri |
| Surname | McDonald |
| Given Name | Helen |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 36 |
| Marital Status | Single |
| Birthplace | Missouri |
| 1935 Residence (City) | Haw Creek Township |
| 1935 Residence (County) | Morgan |
| Additional Details | |
| Occupation | Teaching |
| Industry | High school |
| Class of Worker | PW |
| Hours Worked | 35 |
| Income (1939) | 341 |
| Highest Grade | C 4 |
| 1935 Residence | Same place |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
| Occupation | Teaching |
| Township / Ward | Haw Creek Township |
| Est. Birth Year | ~1904 |
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 Helen | Age | Birth yr |
|---|---|---|---|---|
| P Mcdonald | Head | — | 68 | ~1872 |
| Johanna Mcdonald | Daughter | — | 31 | ~1909 |
| Irene Monsees | Other | — | 26 | ~1914 |
| Helen Mcdonald | Daughter | — | 36 | ~1904 |
Census Appearances
1920
Morgan, Missouri
Other, age 17
Morgan, Missouri · implied b. ~1903 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McDonald |
| Given Name | Hellen R. |
| Relationship to Head | Granddaughter |
| Sex | F |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Missouri |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Missouri |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
1930
Morgan, Missouri
Daughter, age 27
Morgan, Missouri · implied b. ~1903 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McDonald |
| Given Name | Helen R. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Missouri |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Missouri |
| Occupation | Teacher |
| Industry | Rural school |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
1940
Morgan-County, Missouri
Daughter, age 36
Morgan-County, Missouri · implied b. ~1904 — 4 household members
| Surname | McDonald |
| Given Name | Helen |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 36 |
| Marital Status | Single |
| Birthplace | Missouri |
| 1935 Residence (City) | Haw Creek Township |
| 1935 Residence (County) | Morgan |
| Occupation | Teaching |
| Industry | High school |
| Class of Worker | PW |
| Hours Worked | 35 |
| Income (1939) | 341 |
| Highest Grade | C 4 |
| 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 Helen Mcdonald across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father P Mcdonald (~0.92 confidence) and father Patrick Mcdonald (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
P Mcdonald
b. ~1872
Source father
● Household
· direct · ~0.92
Father
Patrick Mcdonald
b. ~1872
Source father
● Household
· direct · ~0.92
This person
Anchor record
Helen Mcdonald
Daughter · 1940 · age 36 · b. ~1904 · Missouri
★ You are viewing this record
Sibling
Johanna Mcdonald
Sibling · 1940 · age 31
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 — Morgan-County, Missouri
Open full size
1940 US Federal Census — Morgan-County, Missouri
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02131-00419)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Irene Smith | 28 | wife | — | Missouri |
| 2 | Betty Jean Smith | 11 | daughter | — | Missouri |
| 3 | Ilene Smith | 9 | daughter | — | Missouri |
| 4 | Claud Miller | 42 | head | Farming | Missouri |
| 5 | Fern Miller | 37 | wife | — | Missouri |
| 6 | Virginia Miller | 8 | daughter | — | Missouri |
| 7 | Warren Miller | 6 | son | — | Missouri |
| 8 | Wallace Miller | 5 | son | — | Missouri |
| 9 | Anna Lucile Miller | 0 | daughter | — | Missouri |
| 10 | Artie Wilson | 22 | head | Hauling Posts | Missouri |
| 11 | Martina Wilson | 15 | wife | — | Missouri |
| 12 | Myrtle Marr | 40 | law | — | Missouri |
| 13 | Louis Rowland | 63 | head | — | Ohio |
| 14 | Lee Rowland | 55 | wife | — | Missouri |
| 15 | Clifford Rowland | 32 | son | Farming | Missouri |
| 16 | Forrest Rowland | 25 | son | Farming | Missouri |
| 17 | Cale Marriott | 53 | head | Farming | Missouri |
| 18 | Cora Marriott | 50 | wife | — | Missouri |
| 19 | Cale Enloe Marriott | 15 | son | — | Missouri |
| 20 | Manuel Marriott | 12 | son | Farming | Missouri |
| 21 | Debra Pauline Marriott | 8 | daughter | — | Missouri |
| 22 | Emil Krauer | 37 | head | Farming | Missouri |
| 23 | Golda Krauer | 33 | sister | — | Missouri |
| 24 | Mary Elizabeth Krauer | 9 | daughter | — | Missouri |
| 25 | Arthur Krauer | 8 | son | — | Missouri |
| 26 | Dewey Pott | 41 | head | Farming | Missouri |
| 27 | Lizzie Pott | 34 | wife | — | Missouri |
| 28 | Rita Pott | 1 | daughter | — | Missouri |
| 29 | P. Harry Mcdonald | 68 | head | Farming | Missouri |
| 30 | Helen Mcdonald THIS PERSON | 36 | daughter | Teaching | Missouri |
| 31 | Johanna Mcdonald | 31 | daughter | Teaching | Missouri |
| 32 | Irene Monsees | 26 | servant | Housekeeping | Missouri |
| 33 | Clarence Rumans | 49 | head | Farming | Missouri |
| 34 | Dorothy Rumans | 41 | wife | — | Missouri |
| 35 | Bennie Rumans | 25 | son | Farm Worker | Missouri |
| 36 | Walter Rumans | 23 | son | Farm Worker | Missouri |
| 37 | Chancery C. Kelly | 59 | head | Farming | Missouri |
| 38 | Ed Rumans | 36 | head | Farming | Missouri |
| 39 | Rhoda Rumans | 72 | mother | Washing Machine | Missouri |
| 40 | Gage Jennings | 61 | head | Salesman | Kansas |
Pedigree Summary
Helen + 1 sibling
Gen 1 · 2 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)