CS
Carl Schmidt — 1940 US Census Record
Model Tree available1940 United States Federal Census · Alameda-County, California
Our Model Tree links this Carl Schmidt across the 1910, 1920, 1930 and 1940 US Censuses in Alameda-County, California (XGBoost, ~Confirmed), with identified parents Gustave & Frederika — first a head (b.~1885), then head of a 5-person household.
Age 55
b. ~1885
Male
Head
Born: South Dakota
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Alameda-County, California |
| Surname | Schmidt |
| Given Name | Carl L. P. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 55 |
| Marital Status | Married |
| Birthplace | South Dakota |
| 1935 Residence (City) | Berkeley |
| 1935 Residence (County) | Alameda |
| Additional Details | |
| Occupation | Professor |
| Industry | University |
| Class of Worker | GW |
| Hours Worked | 40 |
| Income (1939) | 5000 |
| Highest Grade | C 8 |
| 1935 Residence | Same house |
| Birth State | South Dakota |
| Birth Country | United States |
| Birthplace (normalized) | south dakota |
| Occupation | Professor |
| Township / Ward | Berkeley |
| Est. Birth Year | ~1885 |
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 1940 census.
| Name | Relation to head | Relative to Carl | Age | Birth yr |
|---|---|---|---|---|
| Esther Schmidt | Spouse | — | 51 | ~1889 |
| Stanwood Schmidt | Son | — | 21 | ~1919 |
| Alfred Schmidt | Son | — | 18 | ~1922 |
| Carl Schmidt | Head | — | 55 | ~1885 |
| Esther Schmidt | Daughter | — | 15 | ~1925 |
Census Appearances
1910
Alameda, California
Son, age 25
Alameda, California · implied b. ~1885 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Schmidt |
| Given Name | Carl |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | South Dakota |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Occupation | Chemist |
| Industry | Government |
| Birth State | South Dakota |
| Birth Country | United States |
| Birthplace (normalized) | south dakota |
1920
Alameda, California
Head, age 34
Alameda, California · implied b. ~1886 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Schmidt |
| Given Name | Carl L. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 34 |
| Marital Status | Married |
| Birthplace | South Dakota |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Occupation | Professor |
| Industry | School |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | O |
| Home Free/Mortgaged | F |
| Birth State | South Dakota |
| Birth Country | United States |
| Birthplace (normalized) | south dakota |
1930
Alameda, California
Head, age 45
Alameda, California · implied b. ~1885 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Schmidt |
| Given Name | Carl Louis |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | South Dakota |
| Age at First Marriage | 29 |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Occupation | professor |
| Industry | state school |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 10,000 |
| Radio Set | R |
| Veteran | No |
| Birth State | South Dakota |
| Birth Country | United States |
| Birthplace (normalized) | south dakota |
1940
Alameda-County, California
Head, age 55
Alameda-County, California · implied b. ~1885 — 5 household members
| Surname | Schmidt |
| Given Name | Carl L. P. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 55 |
| Marital Status | Married |
| Birthplace | South Dakota |
| 1935 Residence (City) | Berkeley |
| 1935 Residence (County) | Alameda |
| Occupation | Professor |
| Industry | University |
| Class of Worker | GW |
| Hours Worked | 40 |
| Income (1939) | 5000 |
| Highest Grade | C 8 |
| 1935 Residence | Same house |
| 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 Carl Schmidt across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Gustave Schmidt (~0.92 confidence) and mother Frederika Schmidt (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Gustave Schmidt
b. ~1843
Source father
● Household
· direct · ~0.92
Mother
Frederika Schmidt
b. ~1862
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Carl Schmidt
Head · 1940 · age 55 · b. ~1885 · California
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Alameda-County, California
Open full size
1940 US Federal Census — Alameda-County, California
Page Contents
38 people indexed on this census page (nara:1940:m-t0627-00188-00273)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 43 | Harold Phillis | 52 | Head | Manager | California |
| 44 | Eleanor F. Phillis | 50 | Wife | Office Mgr. | Illinois |
| 45 | Dorothy E. Phillis | 21 | Daughter | Stenographer | California |
| 46 | Mrs. W. E. Bruen | 75 | Head | — | New Jersey |
| 47 | Josiah L. Taylor | 56 | Head | — | Illinois |
| 48 | Joan W. Taylor | 27 | Daughter | Secretary | California |
| 49 | Mabel T. Evans | 58 | Head | — | California |
| 50 | Margaret D. Lea | 27 | Head | Teacher | California |
| 51 | Richard S. Lea | 25 | Brother | Clerk | California |
| 52 | Harry Eastwood | 49 | Head | Chemist | England |
| 53 | Margaret B. Eastwood | 46 | Wife | — | Iowa |
| 54 | Marjorie J. Eastwood | 24 | Daughter | Secretary | Illinois |
| 55 | Francis M. Eastwood | 21 | Daughter | — | Nebraska |
| 56 | Mildred E. Eastwood | 14 | Daughter | — | Nebraska |
| 57 | Dorothy A. Eastwood | 12 | Daughter | — | Pennsylvania |
| 58 | Carl L. P. Schmidt THIS PERSON | 55 | Head | Professor | South Dakota |
| 59 | Esther S. Schmidt | 51 | Wife | — | Oregon |
| 60 | Stanwood S. Schmidt | 21 | Son | — | California |
| 61 | Alfred C. Schmidt | 18 | Son | — | California |
| 62 | Esther F. Schmidt | 15 | Daughter | — | California |
| 63 | Harold W. Wykoff | 48 | Head | Shipper | Kansas |
| 64 | Frances E. Wykoff | 48 | Wife | — | Kansas |
| 65 | Robert W. Wykoff | 19 | Son | — | California |
| 66 | Norman E. Wykoff | 15 | Son | — | California |
| 67 | William G. Raymond | 74 | Head | — | New York |
| 68 | Isabella M. Raymond | 69 | Wife | — | Massachusetts |
| 69 | Mary E. Gardner | 25 | Head | Saleslady | New York |
| 70 | Leon R. Gardner | 35 | Head | Entomologist | Illinois |
| 71 | Hazel M. Gardner | 35 | Wife | — | Canada |
| 72 | Philip L. Gardner | 3 | Son | — | California |
| 73 | Robert J. Trumpler | 53 | Head | Professor | Switzerland |
| 74 | Augusta C. Trumpler | 51 | Wife | — | Switzerland |
| 75 | Margot Trumpler | 20 | Daughter | — | California |
| 76 | Alfred O. Trumpler | 13 | Son | — | California |
| 77 | William M. Weber | 54 | Head | Engineer | Ohio |
| 78 | Emma M. Weber | 44 | Wife | — | California |
| 79 | William G. Weber | 22 | Son | Clerical Assistant | California |
| 80 | Marjorie D. Weber | 18 | Daughter | — | California |
Pedigree Summary
Carl
Gen 1 · 2 parents
~0.92
Max depth 4 (1900–1950 window)
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1940 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)