JS
John Schmidt — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Baltimore-City-County, Maryland
Our Model Tree links this John Schmidt across the 1920, 1930 and 1940 US Censuses in Baltimore-City-County, Maryland (XGBoost, ~Confirmed) — first a head (b.~1874), then head of a 9-person household.
Age 66
b. ~1874
Male
Head
Born: Maryland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Baltimore-City-County, Maryland |
| Surname | Schmidt |
| Given Name | John L |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 66 |
| Marital Status | Married |
| Birthplace | Maryland |
| 1935 Residence (County) | Baltimore City |
| Additional Details | |
| Occupation | 40 |
| Industry | Hard wood finisher |
| Class of Worker | Store Fixture Factory |
| Highest Grade | No 6 |
| 1935 Residence | Same Place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Occupation | 40 |
| Township / Ward | Baltimore City |
| Est. Birth Year | ~1874 |
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 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Linnie-Yetta Schmidt | Daughter | — | 18 | ~1922 |
| Mildred Schmidt | Daughter | — | 22 | ~1918 |
| John Schmidt | Head | — | 66 | ~1874 |
| Charles Ludwig | Other | — | 47 | ~1893 |
| George Schmidt | Son | — | 11 | ~1929 |
| Elmer Schmidt | Son | — | 16 | ~1924 |
| William Schmidt | Son | — | 24 | ~1916 |
| W Schmidt | Son | — | 14 | ~1926 |
| Hanna Schmidt | Spouse | — | 52 | ~1888 |
Census Appearances
1920
Baltimore, Maryland
Head, age 43
Baltimore, Maryland · implied b. ~1877 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Schmidt |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | Maryland |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Occupation | Master |
| Industry | Tailor |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | R |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1930
Baltimore, Maryland
Head, age 53
Baltimore, Maryland · implied b. ~1877 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Schmidt |
| Given Name | John K. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 53 |
| Marital Status | Married |
| Birthplace | Maryland |
| Age at First Marriage | 31 |
| Father's Birthplace | Germany |
| Mother's Birthplace | Maryland |
| Occupation | Finisher |
| Industry | Furniture Mfg. |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 33.00 |
| Radio Set | R |
| Veteran | No |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Baltimore-City-County, Maryland
Head, age 66
Baltimore-City-County, Maryland · implied b. ~1874 — 9 household members
| Surname | Schmidt |
| Given Name | John L |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 66 |
| Marital Status | Married |
| Birthplace | Maryland |
| 1935 Residence (County) | Baltimore City |
| Occupation | 40 |
| Industry | Hard wood finisher |
| Class of Worker | Store Fixture Factory |
| Highest Grade | No 6 |
| 1935 Residence | Same Place |
| 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 John Schmidt across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Schmidt
Head · 1940 · age 66 · b. ~1874 · Maryland
★ 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 — Baltimore-City-County, Maryland
Open full size
1940 US Federal Census — Baltimore-City-County, Maryland
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01535-00097)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Rose Bohle | 8 | Daughter | — | Maryland |
| 2 | Dunes Cain | 61 | Head | 0 | West Virginia |
| 3 | Florence Cain | 58 | Wife | 0 | Maryland |
| 4 | Melvine Cain | 17 | Son | 0 | Maryland |
| 5 | Jenny Foster | 65 | Law | 0 | Maryland |
| 6 | Edith Hasley | 23 | Daughter | Machine Operator | Maryland |
| 7 | Edward Hasley | 23 | Son in law | Shipping Clerk | Maryland |
| 8 | Edward Jr Hasley | 6 | Grandson | — | Maryland |
| 9 | Robert Montgomery | 50 | Head | 43 | Penn |
| 10 | Grace Montgomery | 48 | Wife | — | Maryland |
| 11 | Melvine Montgomery | 13 | Son | — | Maryland |
| 12 | Conrad Graef | 71 | Head | 0 | Maryland |
| 13 | Maggie Graef | 68 | Wife | 0 | Maryland |
| 14 | Katie Graef | 43 | Daughter | 0 | Maryland |
| 15 | Florence Traff | 50 | Head | 0 | Maryland |
| 16 | Herman H Traff | 27 | Son | Plumber | Maryland |
| 17 | Ruth E Traff | 22 | Daughter | Typist | Maryland |
| 18 | John C Bayne | 22 | Head | 56 | Maryland |
| 19 | Irene S Bayne | 20 | Wife | — | Maryland |
| 20 | Shirley A Bayne | 3 | Daughter | — | Maryland |
| 21 | Margaret Sevier | 65 | Head | 0 | Maryland |
| 22 | Clinton C Sevier | 47 | Son | Letter Carrier | Maryland |
| 23 | Gertrude Sevier | 43 | Daughter | 0 | Maryland |
| 24 | Joseph Sevier | 12 | Grandson | — | Maryland |
| 25 | Emily Albuth | 12 | Lodger | — | English |
| 26 | John L Schmidt THIS PERSON | 66 | Head | 40 | Maryland |
| 27 | Hanna Schmidt | 52 | Wife | — | Maryland |
| 28 | William A Schmidt | 24 | Son | 40 | Maryland |
| 29 | Mildred Schmidt | 22 | Daughter | 30 | Maryland |
| 30 | Linnie-Yetta Schmidt | 18 | Daughter | 40 | Maryland |
| 31 | Elmer C Schmidt | 16 | Son | — | Maryland |
| 32 | W. Fort C Schmidt | 14 | Son | — | Maryland |
| 33 | George Schmidt | 11 | Son | — | Maryland |
| 34 | Charles Ludwig | 47 | Brother in Law | 40 | Maryland |
| 35 | William H Kehoe | 45 | Head | Pressman | Maryland |
| 36 | Amanda Kehoe | 41 | Wife | 0 | Maryland |
| 37 | Howard Mabel | 56 | Head | Conductor | Maryland |
| 38 | Ella Mabel | 50 | Wife | 0 | Maryland |
| 39 | Enne Mabel | 11 | Daughter | Seamstress | Maryland |
| 40 | Elu Mabel | 17 | Daughter | Seamstress | Maryland |
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)