LS
Louis Schmidt — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Baltimore, Maryland
Our Model Tree links this Louis Schmidt across the 1910, 1920, 1930 and 1940 US Censuses in Baltimore, Maryland (XGBoost, ~Confirmed) — first a head (b.~1870), then head of a 5-person household.
Age 60
b. ~1870
Male
Head
Born: Germany
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Baltimore, Maryland |
| Surname | Schmidt |
| Given Name | Louis J. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 60 |
| Marital Status | Married |
| Birthplace | Germany |
| Naturalization Status | Naturalized |
| Year of Immigration | 1870 |
| Age at First Marriage | 26 |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Additional Details | |
| Occupation | Carpenter |
| Industry | Ship yard |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | German |
| Home Owned/Rented | O |
| Home Value / Rent | 3100 |
| Radio Set | R |
| Veteran | No |
| Birth Country | Germany |
| Birthplace (normalized) | germany |
| Occupation | Carpenter |
| Est. Birth Year | ~1870 |
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.
5 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Louis | Age | Birth yr |
|---|---|---|---|---|
| George Mcclure | Other | — | 5 | ~1925 |
| Lillian Mcclure | Daughter | — | 31 | ~1899 |
| John Mcclure | Other | — | 29 | ~1901 |
| George Schmidt | Son | — | 26 | ~1904 |
| Louis Schmidt | Head | — | 60 | ~1870 |
Census Appearances
1910
Baltimore, Maryland
Head, age 39
Baltimore, Maryland · implied b. ~1871 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Schmidt |
| Given Name | Louis |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | Germany |
| Years Married | 13 |
| Year of Immigration | 1873 |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Occupation | Carpenter |
| Industry | House |
| Birth Country | Germany |
| Birthplace (normalized) | germany |
1920
Baltimore, Maryland
Head, age 49
Baltimore, Maryland · implied b. ~1871 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Schmidt |
| Given Name | Louis F. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| Birthplace | Germany |
| Year of Immigration | 1871 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Occupation | Ship Carpenter |
| Industry | Ship Yard |
| Class of Worker | Ww |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | German |
| Home Owned/Rented | O |
| Home Free/Mortgaged | F |
| Birth Country | Germany |
| Year of Naturalization | 1873 |
| Birthplace (normalized) | germany |
1930
Baltimore, Maryland
Head, age 60
Baltimore, Maryland · implied b. ~1870 — 5 household members
| Surname | Schmidt |
| Given Name | Louis J. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 60 |
| Marital Status | Married |
| Birthplace | Germany |
| Naturalization Status | Naturalized |
| Year of Immigration | 1870 |
| Age at First Marriage | 26 |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Occupation | Carpenter |
| Industry | Ship yard |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | German |
| Home Owned/Rented | O |
| Home Value / Rent | 3100 |
| Radio Set | R |
| Veteran | No |
| Birth Country | Germany |
| Birthplace (normalized) | germany |
1940
Baltimore-City-County, Maryland
Other, age 69
Baltimore-City-County, Maryland · implied b. ~1871 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Schmidt |
| Given Name | Louis |
| Relationship to Head | Father |
| Sex | M |
| Color / Race | White |
| Age | 69 |
| Marital Status | Widowed |
| Birthplace | Germany |
| 1935 Residence (City) | Baltimore City |
| 1935 Residence (County) | Baltimore City |
| Naturalization Status | Naturalized |
| Class of Worker | 0 |
| Hours Worked | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth Country | Germany |
| Birthplace (normalized) | germany |
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 Louis Schmidt across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Louis Schmidt
Head · 1930 · age 60 · b. ~1870 · Maryland
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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
50 people indexed on this census page (ia:1930:15thcensus848unit:0225)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Catherine Miklas | 35 | Wife | None | Czechoslovakia |
| 52 | John Miklas | 18 | Son | None | Illinois |
| 53 | Catherine Miklas | 16 | Daughter | Draftsman | Illinois |
| 54 | Michael Miklas | 12 | Son | Stenographer | Illinois |
| 55 | Marie Miklas | 62 | Mother | None | Czechoslovakia |
| 56 | Michael Wojciechowski | 41 | Head | Laborer | Poland |
| 57 | Josephine Wojciechowski | 38 | Wife | None | Poland |
| 58 | Frank Wojciechowski | 22 | Son | Laborer | Maryland |
| 59 | Samuel Wojciechowski | 20 | Son | Laborer | Maryland |
| 60 | Rosa Wojciechowski | 18 | Daughter | Packer | Maryland |
| 61 | John Baumfeld | 56 | Head | Packer | Maryland |
| 62 | Catherine Baumfeld | 51 | Wife | None | Maryland |
| 63 | Emma A. Baumfeld | 21 | Daughter | Stenographer | Maryland |
| 64 | Clara E. Baumfeld | 19 | Daughter | Stenographer | Maryland |
| 65 | Catherine Baumfeld | 17 | Daughter | None | Maryland |
| 66 | John J. Lang | 53 | Head | Cutter | Maryland |
| 67 | Ludwigunda Lang | 54 | Wife | None | Maryland |
| 68 | John H. Fick | 54 | Head | None | Maryland |
| 69 | Mollie A. Fick | 53 | Wife | None | Maryland |
| 70 | Mary Pruitt | 82 | Mother-in-law | None | Maryland |
| 71 | Louis J. Schmidt THIS PERSON | 60 | Head | Carpenter | Germany |
| 72 | George M. Schmidt | 26 | Son | Pharmacist | Maryland |
| 73 | John B. Mcclure | 29 | Son-in-law | Salesman | Maryland |
| 74 | Lillian E. Mcclure | 31 | Daughter | None | Maryland |
| 75 | George E. Mcclure | 5 | G. Son | None | Maryland |
| 76 | Louis E. Winslow | 50 | Head | Chauffeur | Maryland |
| 77 | May Winslow | 43 | Wife | None | Maryland |
| 78 | Lillian Winslow | 17 | Daughter | Packer | Maryland |
| 79 | William Winslow | 14 | Son | None | Maryland |
| 80 | Elizabeth Allen | 66 | Head | Packer | Maryland |
| 81 | George H. Nikam | 25 | Head | Fireman | Maryland |
| 82 | Catherine Nikam | 19 | Wife | None | Maryland |
| 83 | John M. Nilka | 48 | Head | Cutter | Maryland |
| 84 | Stella Nilka | 46 | Wife | None | Germany |
| 85 | Adam Nilka | 26 | Son | Collector | Maryland |
| 86 | Leo Nilka | 19 | Son | Collector | Maryland |
| 87 | Frank Nilka | 14 | Son | None | Maryland |
| 88 | Joseph Nilka | 13 | Son | None | Maryland |
| 89 | Michael Malczewski | 31 | Head | Laborer | Maryland |
| 90 | Stella M. Malczewski | 31 | Wife | None | Maryland |
| 91 | Leonard Malczewski | 14 | Son | None | Maryland |
| 92 | Martin Malczewski | 8 | Son | None | Maryland |
| 93 | William Malczewski | 6 | Son | None | Maryland |
| 94 | George Smith | 44 | Head | Laborer | Maryland |
| 95 | Agnes Smith | 46 | Wife | Operator | Maryland |
| 96 | Lena Hoffman | 52 | Head | None | Germany |
| 97 | Marie Hoffman | 23 | Daughter | Saleslady | Maryland |
| 98 | Mollie Hoffman | 17 | Daughter | Saleslady | Maryland |
| 99 | Herman Hoffman | 21 | Son | Pattern Maker | Maryland |
| 100 | Charles Hoffman | 47 | Son | Laborer | Maryland |
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)