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Charles Mcdonald — 1940 US Census Record
Model Tree available1940 United States Federal Census · Minnehaha-County, South Dakota
Our Model Tree links this Charles Mcdonald across the 1920, 1930 and 1940 US Censuses in Minnehaha-County, South Dakota (XGBoost, ~Confirmed), with identified parents Alice & Charles — first a head (b.~1908), then head of a 3-person household.
Age 32
b. ~1908
Male
Head
Born: South Dakota
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Minnehaha-County, South Dakota |
| Surname | McDonald |
| Given Name | Charles |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 32 |
| Marital Status | Married |
| Birthplace | South Dakota |
| 1935 Residence (City) | Sioux Falls City |
| 1935 Residence (County) | Minnehaha |
| Additional Details | |
| Occupation | Doctor |
| Industry | Private Practice |
| Class of Worker | OA |
| Hours Worked | 45 |
| Income (1939) | 32 |
| Highest Grade | C 5 |
| 1935 Residence | Same Place |
| Birth State | South Dakota |
| Birth Country | United States |
| Birthplace (normalized) | south dakota |
| Occupation | Doctor |
| Township / Ward | Sioux Falls City |
| Est. Birth Year | ~1908 |
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 Charles | Age | Birth yr |
|---|---|---|---|---|
| Elizabeth Mcdonald | Spouse | — | 26 | ~1914 |
| Charles Mcdonald | Head | — | 32 | ~1908 |
| Roberta Mcdonald | Daughter | — | 2 | ~1938 |
Census Appearances
1920
Minnehaha, South …
Son, age 12
Minnehaha, South Dakota · implied b. ~1908 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McDonald |
| Given Name | Charles J |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | South Dakota |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | South Dakota |
| Birth Country | United States |
| Birthplace (normalized) | south dakota |
1930
Minnehaha, South …
Son, age 22
Minnehaha, South Dakota · implied b. ~1908 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McDonald |
| Given Name | Charles D. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | South Dakota |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | South Dakota |
| Birth Country | United States |
| Birthplace (normalized) | south dakota |
1940
Minnehaha-County, South …
Head, age 32
Minnehaha-County, South Dakota · implied b. ~1908 — 3 household members
| Surname | McDonald |
| Given Name | Charles |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 32 |
| Marital Status | Married |
| Birthplace | South Dakota |
| 1935 Residence (City) | Sioux Falls City |
| 1935 Residence (County) | Minnehaha |
| Occupation | Doctor |
| Industry | Private Practice |
| Class of Worker | OA |
| Hours Worked | 45 |
| Income (1939) | 32 |
| Highest Grade | C 5 |
| 1935 Residence | Same Place |
| Birth State | South Dakota |
| Birth Country | United States |
| Birthplace (normalized) | south 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 Charles Mcdonald across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Alice Mcdonald (~0.92 confidence) and father Charles Mcdonald (~0.92 confidence) and father Charles Mcdonald (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Alice Mcdonald
b. ~1880
Source mother
● Household
· direct · ~0.92
Father
Charles Mcdonald
b. ~1880
Source father
● Household
· direct · ~0.92
Father
Charles Mcdonald
b. ~1880
Source father
● Household
· direct · ~0.92
This person
Anchor record
Charles Mcdonald
Head · 1940 · age 32 · b. ~1908 · South Dakota
★ 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 — Minnehaha-County, South Dakota
Open full size
1940 US Federal Census — Minnehaha-County, South Dakota
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03863-00685)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Marie Risty | 38 | Head | — | South Dakota |
| 42 | Rose Marie Risty | 10 | Daughter | — | Wisconsin |
| 43 | Chris S. Mortensen | 81 | Father | — | Denmark |
| 44 | Laura Mortensen | 67 | Mother | — | Denmark |
| 45 | Ralph L. Southard | 54 | Head | — | Iowa |
| 46 | Frances Southard | 51 | Wife | — | Iowa |
| 47 | Louis Ward | 25 | Head | Secretary Treasurer | South Dakota |
| 48 | Audrey Ward | 21 | Wife | — | Minnesota |
| 49 | Soren Bisgard | 52 | Head | Contractor Mason | Denmark |
| 50 | Belle Bisgard | 50 | Wife | — | Norway |
| 51 | Barbara Bisgard | 22 | Daughter | Book Keeper | South Dakota |
| 52 | Chester Lokken | 37 | Head | Manager | South Dakota |
| 53 | Harriet Lokken | 36 | Wife | — | South Dakota |
| 54 | Phyllis Lokken | 12 | Daughter | — | South Dakota |
| 55 | Richard Lokken | 5 | Son | — | South Dakota |
| 56 | Albert Hagen | 76 | Father-in-law | — | Norway |
| 57 | James A. Modick | 42 | Head | Traveling Salesman | Minnesota |
| 58 | Mabel Modick | 40 | Wife | — | Minnesota |
| 59 | James Modick | 7 | Son | — | South Dakota |
| 60 | Ralph Hillgren | 43 | Head | State Editor | Minnesota |
| 61 | Priscilla Hillgren | 35 | Wife | — | South Dakota |
| 62 | John Hillgren | 2 | Son | — | South Dakota |
| 63 | Evelyn Wickre | 20 | Servant | Servant | Minnesota |
| 64 | End Of Block | None | — | — | — |
| 65 | Charles Mcdonald THIS PERSON | 32 | Head | Doctor | South Dakota |
| 66 | Elizabeth Mcdonald | 26 | Wife | — | Ohio |
| 67 | Roberta Mcdonald | 2 | Daughter | — | South Dakota |
| 68 | Dawson Dinsmore | 36 | Head | Credit Manager | Minnesota |
| 69 | Doris Dinsmore | 28 | Wife | — | Illinois |
| 70 | David Dinsmore | 4 | Son | — | South Dakota |
| 71 | Julie Ann Dinsmore | 2 | Daughter | — | South Dakota |
| 72 | Geraldine Quaiseth | 16 | Servant | Servant | South Dakota |
| 73 | Harold F. Eggers | 39 | Head | Credit Manager | South Dakota |
| 74 | Leora Eggers | 40 | Wife | — | South Dakota |
| 75 | Luanne Eggers | 5 | Daughter | — | South Dakota |
| 76 | Helen Eggers | 3 | Daughter | — | South Dakota |
| 77 | William J. Beral | Berd | 32 | Head | Doctor | Nebraska |
| 78 | Dorothy Beral | Berd | 32 | Wife | — | Nebraska |
| 79 | John Beral | Berd | 6 | Son | — | Nebraska |
| 80 | Susan Beral | Berd | 2 | Daughter | — | South Dakota |
Pedigree Summary
Charles
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)