RM
Rosa Martin — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Perkins, South Dakota
Our Model Tree links this Rosa Martin across the 1920 and 1930 US Censuses in Perkins, South Dakota (XGBoost, ~Confirmed) — first a daughter (b.~1919), then head of a 9-person household.
Age 1
b. ~1919
Female
Daughter
Born: South Dakota
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | Perkins, South Dakota |
| Surname | Martin |
| Given Name | Rosa |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | South Dakota |
| Father's Birthplace | Russia |
| Mother's Birthplace | Russia |
| Additional Details | |
| Birth State | South Dakota |
| Birth Country | United States |
| Birthplace (normalized) | south dakota |
| Township / Ward | Duell Township |
| Est. Birth Year | ~1919 |
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.
9 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to Rosa | Age | Birth yr |
|---|---|---|---|---|
| Rosa Martin | Daughter | — | 1 | ~1919 |
| Fred Martin | Head | — | 48 | ~1872 |
| Christina Martin | Daughter | — | 8 | ~1912 |
| Jacob Martin | Son | — | 4 | ~1916 |
| Lena Martin | Daughter | — | 11 | ~1909 |
| Rosa Martin | Spouse | — | 48 | ~1872 |
| Elizabeth Martin | Daughter | — | 15 | ~1905 |
| Carolina Martin | Daughter | — | 6 | ~1914 |
| Fred Martin | Son | — | 24 | ~1896 |
Census Appearances
1920
Perkins, South …
Daughter, age 1
Perkins, South Dakota · implied b. ~1919 — 9 household members
| Surname | Martin |
| Given Name | Rosa |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | South Dakota |
| Father's Birthplace | Russia |
| Mother's Birthplace | Russia |
| Birth State | South Dakota |
| Birth Country | United States |
| Birthplace (normalized) | south dakota |
1930
Perkins, South …
Daughter, age 11
Perkins, South Dakota · implied b. ~1919 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Rose |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | South Dakota |
| Father's Birthplace | Russia |
| Mother's Birthplace | Russia |
| Can Read/Write | Yes |
| 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 Rosa Martin across 2 US Census years (1920 and 1930) in Perkins, South Dakota, using XGBoost record linkage.
Show:
This person
Anchor record
Rosa Martin
Daughter · 1920 · age 1 · b. ~1919 · South Dakota
★ You are viewing this record
Sibling
Jacob Martin
Sibling · 1920 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Carolina Martin
Sibling · 1920 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lena Martin
Sibling · 1920 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Christina Martin
Sibling · 1920 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Fred Martin
Sibling · 1920 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Elizabeth Martin
Sibling · 1920 · age 15
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 — Perkins, South Dakota
Open full size
1920 US Federal Census — Perkins, South Dakota
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu1725unit:0381)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Henry Kolb | 29 | Head | Farmer | Russia |
| 2 | Gertrude Kolb | 25 | Wife | — | Russia |
| 3 | Anna Kolb | 2 | Daughter | — | South Dakota |
| 4 | Rosa Kolb | 1 | Daughter | — | South Dakota |
| 5 | John Hintz | 29 | Head | Farmer | North Dakota |
| 6 | Sophie Hintz | 27 | Wife | — | Russia |
| 7 | Ella Hintz | 7 | Daughter | — | North Dakota |
| 8 | Otto Hintz | 1 | Son | — | North Dakota |
| 9 | Oscar Fink | 25 | Head | Farmer | North Dakota |
| 10 | Samuel Fink | 63 | Father | Farmer | Russia |
| 11 | Elizabeth Fink | 63 | Mother | — | Russia |
| 12 | Rudolph Kolb | 26 | Head | Farmer | Russia |
| 13 | Amelia Kolb | 21 | Wife | — | North Dakota |
| 14 | Lillian Kolb | 2 | Daughter | — | South Dakota |
| 15 | Raymond Kolb | 0 | Son | — | South Dakota |
| 16 | William Fink | 31 | Head | Farmer | Russia |
| 17 | Teresia Fink | 25 | Wife | — | Russia |
| 18 | William Fink | 4 | Son | — | North Dakota |
| 19 | Robert Fink | 2 | Son | — | South Dakota |
| 20 | Fred Sr Martin | 48 | Head | Farmer | Russia |
| 21 | Rosa Martin | 48 | Wife | — | Russia |
| 22 | Fred Jr Martin | 24 | Son | Farmer | Russia |
| 23 | Elizabeth Martin | 15 | Daughter | — | Russia |
| 24 | Lena Martin | 11 | Daughter | — | Russia |
| 25 | Christina Martin | 8 | Daughter | — | South Dakota |
| 26 | Carolina Martin | 6 | Daughter | — | South Dakota |
| 27 | Jacob Martin | 4 | Son | — | South Dakota |
| 28 | Rosa Martin THIS PERSON | 1 | Daughter | — | South Dakota |
| 29 | Jacob Kolb | 53 | Head | Farmer | Russia |
| 30 | Christina Kolb | 54 | Wife | — | Russia |
| 31 | Ludwig Kolb | 17 | Son | — | Russia |
| 32 | Mary Kolb | 15 | Daughter | — | Russia |
| 33 | Daniel Kolb | 10 | Son | — | South Dakota |
| 34 | Alfred Reeder | 44 | Head | Farmer | Iowa |
| 35 | Maud Reeder | 40 | Wife | — | Iowa |
| 36 | Ollie Reeder | 13 | Son | — | South Dakota |
| 37 | Walter Bayer | 28 | Hired hand | Laborer | England |
| 38 | William Sr. Pol | 58 | Head | Farmer | Holland |
| 39 | Gertrude Pol | 56 | Wife | — | Holland |
| 40 | Minnie Pol | 18 | Daughter | — | Holland |
| 41 | Annie Pol | 12 | Daughter | — | South Dakota |
| 42 | Aenet Pol | 30 | Head | Farmer | Holland |
| 43 | Julius Hanson | 32 | Head | Farmer | Minnesota |
| 44 | Mertena Hanson | 32 | Wife | — | Minnesota |
| 45 | Orville Hanson | 8 | Son | — | Minnesota |
| 46 | Arnold Hanson | 6 | Son | — | South Dakota |
| 47 | Isaac Hanson | 3 | Son | — | South Dakota |
| 48 | Roll Dercher | 33 | Head | Farmer | Indiana |
| 49 | Grace Dercher | 29 | Wife | — | South Dakota |
| 50 | Lee Dercher | 9 | Son | — | South Dakota |
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)