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Mary Bauer — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Mercer, North Dakota
Our Model Tree links this Mary Bauer across the 1920 and 1930 US Censuses in Mercer, North Dakota (XGBoost, ~Confirmed) — first a daughter (b.~1918), then head of a 11-person household.
Age 12
b. ~1918
Female
Daughter
Born: North Dakota
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Mercer, North Dakota |
| Surname | Bauer |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | North Dakota |
| Father's Birthplace | Russia |
| Mother's Birthplace | Russia |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | North Dakota |
| Birth Country | United States |
| Birthplace (normalized) | north dakota |
| Township / Ward | Twp 145 R 88 |
| Est. Birth Year | ~1918 |
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 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Alvina Bauer | Daughter | — | 16 | ~1914 |
| Ida Bauer | Daughter | — | 7 | ~1923 |
| Rose Bauer | Daughter | — | 8 | ~1922 |
| Mary Bauer | Daughter | — | 12 | ~1918 |
| Adilia Bauer | Daughter | — | 14 | ~1916 |
| Henry Bauer | Head | — | 47 | ~1883 |
| Christina Bauer | Other | — | 47 | ~1883 |
| Edward Bauer | Son | — | 17 | ~1913 |
| Fred Bauer | Son | — | 5 | ~1925 |
| Gottlieb Bauer | Son | — | 10 | ~1920 |
| Ferdinand Bauer | Son | — | 19 | ~1911 |
Census Appearances
1920
Mercer, North …
Daughter, age 1
Mercer, North Dakota · implied b. ~1919 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Buer |
| Given Name | Marie |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | North Dakota |
| Father's Birthplace | Russia |
| Mother's Birthplace | Russia |
| Occupation | none |
| Birth State | North Dakota |
| Birth Country | United States |
| Birthplace (normalized) | north dakota |
1930
Mercer, North …
Daughter, age 12
Mercer, North Dakota · implied b. ~1918 — 11 household members
| Surname | Bauer |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | North Dakota |
| Father's Birthplace | Russia |
| Mother's Birthplace | Russia |
| Can Read/Write | Yes |
| Birth State | North Dakota |
| Birth Country | United States |
| Birthplace (normalized) | north 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 Mary Bauer across 2 US Census years (1920 and 1930) in Mercer, North Dakota, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Bauer
Daughter · 1930 · age 12 · b. ~1918 · North Dakota
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Sibling
Ida Bauer
Sibling · 1930 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edward Bauer
Sibling · 1930 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Fred Bauer
Sibling · 1930 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rose Bauer
Sibling · 1930 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ferdinand Bauer
Sibling · 1930 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alvina Bauer
Sibling · 1930 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Gottlieb Bauer
Sibling · 1930 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Adilia Bauer
Sibling · 1930 · age 14
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
1930 US Federal Census — Mercer, North Dakota
Open full size
1930 US Federal Census — Mercer, North Dakota
Page Contents
50 people indexed on this census page (ia:1930:15thcensus1738unit:0458)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Herbert Brueller | 19 | Son | — | South Dakota |
| 52 | Herbert Krukenberg | 22 | Head | Farmer | North Dakota |
| 53 | Cornelia Krukenberg | 23 | Wife-H | — | North Dakota |
| 54 | Ernest H. Fedderan | 43 | Head | Farmer | Illinois |
| 55 | Hattie Fedderan | 34 | Wife-H | — | Nebraska |
| 56 | Richard Fedderan | 13 | Son | — | North Dakota |
| 57 | Agnes Fedderan | 11 | Daughter | — | North Dakota |
| 58 | Milton Fedderan | 10 | Son | — | North Dakota |
| 59 | Theodore T. Herman | 35 | Head | Farmer | Nebraska |
| 60 | Hulda Herman | 30 | Wife-H | — | North Dakota |
| 61 | Vera Herman | 9 | Daughter | — | North Dakota |
| 62 | Marvin Herman | 8 | Son | — | North Dakota |
| 63 | Edna Herman | 5 | Daughter | — | North Dakota |
| 64 | Ivan Herman | 2 | Son | — | North Dakota |
| 65 | Delfine Herman | 0 | Daughter | — | North Dakota |
| 66 | Henry Bauer | 47 | Head | Farmer | Russia-Ger. |
| 67 | Christina Bauer | 47 | Wife-H | — | Russia-Ger. |
| 68 | Ferdinand Bauer | 19 | Son | — | Russia-Ger. |
| 69 | Edward Bauer | 17 | Son | — | North Dakota |
| 70 | Alvina Bauer | 16 | Daughter | — | North Dakota |
| 71 | Adilia Bauer | 14 | Daughter | — | North Dakota |
| 72 | Mary Bauer THIS PERSON | 12 | Daughter | — | North Dakota |
| 73 | Gottlieb Bauer | 10 | Son | — | North Dakota |
| 74 | Rose Bauer | 8 | Daughter | — | North Dakota |
| 75 | Ida Bauer | 7 | Daughter | — | North Dakota |
| 76 | Fred Bauer | 5 | Son | — | North Dakota |
| 77 | John Bauer | 22 | Head | Farmer | Russia-Ger. |
| 78 | Amy Bauer | 22 | Wife-H | — | North Dakota |
| 79 | Adam Hoffman | 48 | Head | Farmer | Russia-Ger. |
| 80 | Carolina Hoffman | 44 | Wife-H | — | Russia-Ger. |
| 81 | Robert Hoffman | 20 | Son | — | North Dakota |
| 82 | Fred Hoffman | 19 | Son | — | North Dakota |
| 83 | Melita Hoffman | 16 | Daughter | — | North Dakota |
| 84 | Alvina Hoffman | 11 | Daughter | — | North Dakota |
| 85 | Richard Hoffman | 7 | Son | — | North Dakota |
| 86 | Arthur Hoffman | 5 | Son | — | North Dakota |
| 87 | John Weiss | 44 | Head | Farmer | Russia-Ger. |
| 88 | Anna Weiss | 39 | Wife-H | — | Russia-Ger. |
| 89 | Hilda Weiss | 19 | Daughter | — | North Dakota |
| 90 | Hertha Weiss | 17 | Daughter | — | North Dakota |
| 91 | Arthur Weiss | 14 | Son | — | North Dakota |
| 92 | Emilia Weiss | 11 | Daughter | — | North Dakota |
| 93 | Echart Weiss | 8 | Son | — | North Dakota |
| 94 | Edmund Weiss | 5 | Son | — | North Dakota |
| 95 | Harold Weiss | 1 | Son | — | North Dakota |
| 96 | Ernest Herman | 23 | Head | Farmer | North Dakota |
| 97 | Ella Herman | 21 | Wife-H | — | North Dakota |
| 98 | Theophil Reiner | 35 | Head | Farmer | North Dakota |
| 99 | Elizabeth Reiner | 38 | Wife-H | — | Russia |
| 100 | Ervin Reiner | 8 | Son | — | North Dakota |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)