MD
Mary Dennis — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Jerauld, South Dakota
Our Model Tree links this Mary Dennis across the 1910 and 1920 US Censuses in Jerauld, South Dakota (XGBoost, ~Confirmed) — first a daughter (b.~1908), then head of a 11-person household.
Age 12
b. ~1908
Female
Daughter
Born: Wisconsin
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | Jerauld, South Dakota |
| Surname | Dennis |
| Given Name | Mary A. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Illinois |
| Additional Details | |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
| Township / Ward | Dale Township |
| 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.
11 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Nellie Dennis | Daughter | — | 4 | ~1916 |
| Harriet Dennis | Daughter | — | 7 | ~1913 |
| Blanche Dennis | Spouse | — | 45 | ~1875 |
| Donna Hayward | Other | — | 73 | ~1847 |
| Martha Dennis | Daughter | — | 16 | ~1904 |
| Donna Dennis | Daughter | — | 22 | ~1898 |
| Charles Dennis | Head | — | 47 | ~1873 |
| Charles Dennis | Son | — | 19 | ~1901 |
| Thomas Dennis | Son | — | 1 | ~1919 |
| Alda Dennis | Daughter | — | 14 | ~1906 |
| Mary Dennis | Daughter | — | 12 | ~1908 |
Census Appearances
1910
Jerauld, South …
Daughter, age 2
Jerauld, South Dakota · implied b. ~1908 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Dennis |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Illinois |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
1920
Jerauld, South …
Daughter, age 12
Jerauld, South Dakota · implied b. ~1908 — 11 household members
| Surname | Dennis |
| Given Name | Mary A. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Illinois |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
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 Mary Dennis across 2 US Census years (1910 and 1920) in Jerauld, South Dakota, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Dennis
Daughter · 1920 · age 12 · b. ~1908 · South Dakota
★ You are viewing this record
Sibling
Charles Dennis
Sibling · 1920 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alda Dennis
Sibling · 1920 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Nellie Dennis
Sibling · 1920 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas Dennis
Sibling · 1920 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Harriet Dennis
Sibling · 1920 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Martha Dennis
Sibling · 1920 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Donna Dennis
Sibling · 1920 · age 22
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
1920 US Federal Census — Jerauld, South Dakota
Open full size
1920 US Federal Census — Jerauld, South Dakota
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu1721unit:0604)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Virgil Milner | 20 | — | Farm Laborer | Illinois |
| 2 | Gordon R. Scott | 33 | Head | Farmer | Minnesota |
| 3 | Ethel M. Scott | 28 | Wife | — | Iowa |
| 4 | Ralph Scott | 2 | Son | — | South Dakota |
| 5 | Neva M. Scott | 0 | Daughter | — | South Dakota |
| 6 | Gavin Scott | 35 | Brother | — | Wisconsin |
| 7 | Ernest L. Scott | 34 | Head | Farmer | Wisconsin |
| 8 | Le Roy J. Scott | 13 | Son | — | South Dakota |
| 9 | Luvern L. Scott | 10 | Son | — | South Dakota |
| 10 | Anson B. Chapman | 29 | Hiredman | Laborer | South Dakota |
| 11 | Mabel O. Chapman | 23 | Servant | — | Missouri |
| 12 | Wilber C. Chapman | 8 | Boarder | — | South Dakota |
| 13 | Ralph D. Chapman | 5 | Boarder | — | South Dakota |
| 14 | Frederick Bykerk | 34 | Head | Farmer | Holland |
| 15 | Grace C. Bykerk | 26 | Wife | — | South Dakota |
| 16 | Henry G. Thomas | 38 | Head | Farmer | Wisconsin |
| 17 | July H. Thomas | 33 | Wife | — | Iowa |
| 18 | Evelyn F. Thomas | 13 | Daughter | — | South Dakota |
| 19 | Ethel L. Thomas | 11 | Daughter | — | South Dakota |
| 20 | Le Rose Thomas | 10 | Son | — | South Dakota |
| 21 | Vernard H. Thomas | 7 | Son | — | South Dakota |
| 22 | Vera V. Thomas | 7 | Daughter | — | South Dakota |
| 23 | George E. Thomas | 4 | Son | — | South Dakota |
| 24 | Gladys H. Thomas | 2 | Daughter | — | South Dakota |
| 25 | Alvid A. Thomas | 0 | Son | — | South Dakota |
| 26 | Charles Dennis | 47 | Head | Farmer | Indiana |
| 27 | Blanche J. Dennis | 45 | Wife | — | Illinois |
| 28 | Donna E. Dennis | 22 | Daughter | — | Illinois |
| 29 | Charles O. Dennis | 19 | Son | — | Wisconsin |
| 30 | Martha M. Dennis | 16 | Daughter | — | Wisconsin |
| 31 | Alda B. Dennis | 14 | Daughter | — | Wisconsin |
| 32 | Mary A. Dennis THIS PERSON | 12 | Daughter | — | Wisconsin |
| 33 | Harriet H. Dennis | 7 | Daughter | — | South Dakota |
| 34 | Nellie L. Dennis | 4 | Daughter | — | South Dakota |
| 35 | Thomas W. Dennis | 1 | Son | — | South Dakota |
| 36 | Donna Hayward | 73 | Mother in law | — | Indiana |
| 37 | Ernest G. Ditlefs | 39 | Head | Farmer | Germany |
| 38 | Anna S. Ditlefs | 38 | Wife | — | Iowa |
| 39 | Marie E. Ditlefs | 14 | Daughter | — | South Dakota |
| 40 | Eva L. M. Ditlefs | 12 | Daughter | — | South Dakota |
| 41 | Daniel H. Ditlefs | 10 | Son | — | South Dakota |
| 42 | Edna A. Ditlefs | 7 | Daughter | — | South Dakota |
| 43 | Lester A. Ditlefs | 4 | Son | — | South Dakota |
| 44 | Louis G. Ditlefs | 0 | Son | — | South Dakota |
| 45 | William T. Pick | 41 | Head | Farmer | Iowa |
| 46 | Lily D. Pick | 40 | Wife | — | Kansas |
| 47 | James L. Pick | 18 | Son | Farm Laborer | Nebraska |
| 48 | Alice L. Pick | 13 | Daughter | — | Nebraska |
| 49 | Edie I. Pick | 11 | Daughter | — | Nebraska |
| 50 | Dollie L. Pick | 11 | Daughter | — | Nebraska |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1920 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)