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Martha Morris — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Pennington-County, South Dakota
Our Model Tree links this Martha Morris across the 1920, 1930 and 1940 US Censuses in Pennington-County, South Dakota (XGBoost, ~Confirmed) — first a spouse (b.~1898), then head of a 6-person household.
Age 42
b. ~1898
Female
Spouse
Born: Minnesota
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Pennington-County, South Dakota |
| Surname | Morris |
| Given Name | Martha |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 42 |
| Marital Status | Married |
| Birthplace | Minnesota |
| 1935 Residence (City) | Wasta Town |
| 1935 Residence (County) | Pennington |
| Additional Details | |
| Highest Grade | No 4 |
| 1935 Residence | Same place |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
| Township / Ward | Wasta Town |
| Est. Birth Year | ~1898 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Martha | Age | Birth yr |
|---|---|---|---|---|
| Florence Morris | Head | — | 44 | ~1896 |
| Daniel Morris | Son | — | 22 | ~1918 |
| Joan Morris | Daughter | — | 17 | ~1923 |
| William Morris | Son | — | 24 | ~1916 |
| Charles Morris | Son | — | 21 | ~1919 |
| Martha Morris | Spouse | — | 42 | ~1898 |
Census Appearances
1920
Pennington, South …
Spouse, age 24
Pennington, South Dakota · implied b. ~1896 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Morris |
| Given Name | Martha |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 24 |
| Marital Status | Married |
| Birthplace | Minnesota |
| Father's Birthplace | Minnesota |
| Mother's Birthplace | New York |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1930
Pennington, South …
Other, age 34
Pennington, South Dakota · implied b. ~1896 — 13 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Morris |
| Given Name | Martha |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 34 |
| Marital Status | Married |
| Birthplace | Minnesota |
| Age at First Marriage | 19 |
| Father's Birthplace | Minnesota |
| Mother's Birthplace | Minnesota |
| Can Read/Write | Yes |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1940
Pennington-County, South …
Spouse, age 42
Pennington-County, South Dakota · implied b. ~1898 — 6 household members
| Surname | Morris |
| Given Name | Martha |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 42 |
| Marital Status | Married |
| Birthplace | Minnesota |
| 1935 Residence (City) | Wasta Town |
| 1935 Residence (County) | Pennington |
| Highest Grade | No 4 |
| 1935 Residence | Same place |
| 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 Martha Morris across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Martha Morris
Spouse · 1940 · age 42 · b. ~1898 · 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 — Pennington-County, South Dakota
Open full size
1940 US Federal Census — Pennington-County, South Dakota
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03865-00805)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Muriel Hanson | 23 | Lodger | Teacher | So. Dak |
| 42 | R. M. Killian | 45 | Head | Manager | Iowa |
| 43 | Naomi Killian | 43 | Wife | Post Master | Iowa |
| 44 | Floyd Killian | 12 | Son | — | So. Dak |
| 45 | John Martin | 28 | Lodger | Truck Driver | So. Dak |
| 46 | Alberta Killian | 65 | Head | — | Iowa |
| 47 | Florence Morris | 44 | Head | Bookkeeper | Colorado |
| 48 | Martha Morris THIS PERSON | 42 | Wife | — | Minnesota |
| 49 | William B. Morris | 24 | Son | Radio Operator | So. Dak |
| 50 | Daniel Morris | 22 | Son | Laborer | So. Dak |
| 51 | Charles Morris | 21 | Son | Laborer | So. Dak |
| 52 | Joan Morris | 17 | Daughter | — | So. Dak |
| 53 | Jessie Gordon | 70 | Head | — | Iowa |
| 54 | Clarence Duster | 47 | Head | Owner | Nebraska |
| 55 | Lena Duster | 47 | Wife | — | Illinois |
| 56 | Verna Duster | 16 | Daughter | — | So. Dak |
| 57 | Viola Duster | 14 | Daughter | — | So. Dak |
| 58 | Lowell Duster | 12 | Son | — | So. Dak |
| 59 | Mary T. Reiser | 50 | Head | Owner | Nebraska |
| 60 | Helen Reiser | 19 | Daughter | Nursing | Nebraska |
| 61 | Kathleen Reiser | 16 | Daughter | — | So. Dak |
| 62 | Mary Reiser | 14 | Daughter | — | So. Dak |
| 63 | Robert Reiser | 12 | Son | — | So. Dak |
| 64 | Charles Reiser | 10 | Son | — | So. Dak |
| 65 | Mike Armstrong | 56 | Brother | Clerk | Nebraska |
| 66 | Arthur Kline | 65 | Head | — | Indiana |
| 67 | Wayne Kline | 16 | Son | Laborer | So. Dak |
| 68 | Clifford Sich | 21 | Head | Laborer | Nebraska |
| 69 | Opal Sich | 20 | Wife | — | So. Dak |
| 70 | Albert Heinemann | 63 | Head | Physician | Ohio |
| 71 | Clara Heinemann | 58 | Wife | — | France |
| 72 | Lorraine Heinemann | 21 | Daughter | — | So. Dak |
| 73 | Margaret Kurtis | 17 | Servant | Servant | So. Dak |
| 74 | Martha O'Connell | 78 | Head | — | New York |
| 75 | John Mars | 68 | Nephew | — | Minnesota |
| 76 | Andrew Coleman | 76 | Head | — | Pennsylvania |
| 77 | Jens Anderson | 32 | Head | Section Foreman | So. Dak |
| 78 | Jennie Anderson | 26 | Wife | — | So. Dakota |
| 79 | Janis Anderson | 0 | Daughter | — | So. Dak |
| 80 | Edwin Hawkey | 16 | Brother | — | So. Dak |
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)