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Bertha Schmidt — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Baltimore, Maryland
Our Model Tree links this Bertha Schmidt across the 1920 and 1930 US Censuses in Baltimore, Maryland (XGBoost, ~Confirmed) — first a daughter (b.~1919), then head of a 8-person household.
Age 11
b. ~1919
Female
Daughter
Born: Maryland
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Baltimore, Maryland |
| Surname | Schmidt |
| Given Name | Bertha |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Township / Ward | Baltimore City |
| 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.
8 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Bertha | Age | Birth yr |
|---|---|---|---|---|
| Hewett Schmidt | Son | — | 13 | ~1917 |
| Gustav Schmidt | Head | — | 35 | ~1895 |
| Edwin Schmidt | Son | — | ~1930 | |
| Eugene Schmidt | Son | — | 7 | ~1923 |
| Ida Hardy | Other | — | 58 | ~1872 |
| Margaret Schmidt | Daughter | — | 3 | ~1927 |
| Bertha Schmidt | Daughter | — | 11 | ~1919 |
| Mary Schmidt | Other | — | 33 | ~1897 |
Census Appearances
1920
Baltimore, Maryland
Daughter, age
Baltimore, Maryland · implied b. ~1920 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Schmidt |
| Given Name | Bertha |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1930
Baltimore, Maryland
Daughter, age 11
Baltimore, Maryland · implied b. ~1919 — 8 household members
| Surname | Schmidt |
| Given Name | Bertha |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Can Read/Write | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
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 Bertha Schmidt across 2 US Census years (1920 and 1930) in Baltimore, Maryland, using XGBoost record linkage.
Show:
This person
Anchor record
Bertha Schmidt
Daughter · 1930 · age 11 · b. ~1919 · Maryland
★ You are viewing this record
Sibling
Hewett Schmidt
Sibling · 1930 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Schmidt
Sibling · 1930 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edwin Schmidt
Sibling · 1930 · age
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Eugene Schmidt
Sibling · 1930 · age 7
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 — Baltimore, Maryland
Open full size
1930 US Federal Census — Baltimore, Maryland
Page Contents
49 people indexed on this census page (ia:1930:15thcensus868unit:0077)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Gustav J. Schmidt | 35 | Head | Machinist | Maryland |
| 2 | Mary Schmidt | 33 | Wife-H | — | Maryland |
| 3 | Hewett Schmidt | 13 | Son | — | Maryland |
| 4 | Bertha Schmidt THIS PERSON | 11 | Daughter | — | Maryland |
| 5 | Eugene Schmidt | 7 | Son | — | Maryland |
| 6 | Margaret Schmidt | 3 | Daughter | — | Maryland |
| 7 | Edwin Schmidt | 0 | Son | — | Maryland |
| 8 | Ida Hardy | 58 | Mother-in-law | — | Maryland |
| 9 | Raymond Carey | 33 | Head | Buyer | Maryland |
| 10 | Vesta Carey | 29 | Wife-H | — | Maryland |
| 11 | Muriel Carey | 8 | Daughter | — | Maryland |
| 12 | Betty Rae Carey | 1 | Daughter | — | Maryland |
| 13 | Roy Graham | 34 | Head | Clerk | North Carolina |
| 14 | Virginia Graham | 28 | Wife-H | — | North Carolina |
| 15 | Dorothy M. Graham | 5 | Daughter | — | Maryland |
| 16 | William Graham | 75 | Father | None | North Carolina |
| 17 | John Humphrey | 28 | Lodger | Chauffeur | North Carolina |
| 18 | Anna Humphrey | 28 | Lodger | None | North Carolina |
| 19 | Anna Humphrey | 7 | Daughter | — | North Carolina |
| 20 | Margaret Humphrey | 2 | Daughter | — | Maryland |
| 21 | Viola Humphrey | 1 | Daughter | — | Maryland |
| 22 | Adolf Smith | 61 | Head | Cooper | Maryland |
| 23 | Margaret Smith | 53 | Wife-H | — | Maryland |
| 24 | Julia Smith | 35 | Daughter | Sales Person | Maryland |
| 25 | Madeline Smith | 32 | Daughter | Bookkeeper | Maryland |
| 26 | George Smith | 29 | Son | Clerk | Maryland |
| 27 | Mary Smith | 23 | Daughter | Typist | Maryland |
| 28 | August Mank | 47 | Head | Shoe Maker | Maryland |
| 29 | Eva Mank | 42 | Wife-H | None | Maryland |
| 30 | Albert Mank | 21 | Son | Cream-Mixer | Maryland |
| 31 | Eva Mank | 17 | Daughter | Tie-Maker | Maryland |
| 32 | Catherine Mank | 15 | Daughter | Tie Maker | Maryland |
| 33 | Emma Mank | 12 | Daughter | — | Maryland |
| 34 | Elmira Mank | 10 | Daughter | — | Maryland |
| 35 | Harry Mank | 8 | Son | — | Maryland |
| 36 | Jack Mank | 8 | Son | — | Maryland |
| 37 | Billie Mank | 6 | Son | — | Maryland |
| 38 | Shirley Mank | 5 | Daughter | — | Maryland |
| 39 | Anna Hartmann | 3 | Grand-child | — | Maryland |
| 40 | Albert Miller | 76 | Father-in-law | Janitor | Maryland |
| 41 | William Leitzler | 24 | Head | Salesman | Maryland |
| 42 | Maude Leitzler | 22 | Wife-H | — | Maryland |
| 43 | Marjorie Leitzler | 1 | Daughter | — | Maryland |
| 44 | Frank Harper | 44 | Head | Carpenter | Kansas |
| 45 | Matilda Harper | 39 | Wife-H | Seamstress | Maryland |
| 46 | James Washel | 20 | Nephew | Laborer | Maryland |
| 47 | Noble Hochman | 37 | Head | Manager | Ohio |
| 48 | Helen Hochman | 36 | Wife-H | — | Kentucky |
| 49 | Fred Hochman | 5 | Son | — | Indiana |
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)