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John Schwartz — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Bay-County, Michigan
Our Model Tree links this John Schwartz across the 1930 and 1940 US Censuses in Bay-County, Michigan (XGBoost, ~Confirmed) — first a head (b.~1891), then head of a 8-person household.
Age 49
b. ~1891
Male
Head
Born: Michigan
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Bay-County, Michigan |
| Surname | Schwartz |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| Birthplace | Michigan |
| 1935 Residence (City) | Bay City |
| 1935 Residence (County) | Bay |
| Additional Details | |
| Occupation | Coppersmith |
| Industry | Metal work mfg co |
| Class of Worker | PW |
| Hours Worked | 41 |
| Income (1939) | 1500 |
| Highest Grade | No 5 |
| 1935 Residence | Same House |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
| Occupation | Coppersmith |
| Township / Ward | Bay City |
| Est. Birth Year | ~1891 |
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 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Edward Schwartz | Son | — | 20 | ~1920 |
| Caroline Schwartz | Daughter | — | 22 | ~1918 |
| Viola Schwartz | Daughter | — | 13 | ~1927 |
| Maurice Schwartz | Son | — | 24 | ~1916 |
| Adeline Schwartz | Daughter | — | 10 | ~1930 |
| Irene Schwartz | Daughter | — | 15 | ~1925 |
| John Schwartz | Head | — | 49 | ~1891 |
| Anna Schwartz | Spouse | — | 50 | ~1890 |
Census Appearances
1930
Bay, Michigan
Head, age 39
Bay, Michigan · implied b. ~1891 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Schwartz |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | Michigan |
| Age at First Marriage | 20 |
| Father's Birthplace | Germany |
| Mother's Birthplace | Michigan |
| Occupation | Laborer |
| Industry | Copper works |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 4500 |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1940
Bay-County, Michigan
Head, age 49
Bay-County, Michigan · implied b. ~1891 — 8 household members
| Surname | Schwartz |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| Birthplace | Michigan |
| 1935 Residence (City) | Bay City |
| 1935 Residence (County) | Bay |
| Occupation | Coppersmith |
| Industry | Metal work mfg co |
| Class of Worker | PW |
| Hours Worked | 41 |
| Income (1939) | 1500 |
| Highest Grade | No 5 |
| 1935 Residence | Same House |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
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 Schwartz across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Schwartz
Head · 1940 · age 49 · b. ~1891 · Michigan
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Bay-County, Michigan
Open full size
1940 US Federal Census — Bay-County, Michigan
Page Contents
37 people indexed on this census page (nara:1940:m-t0627-01728-00333)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | William Packard | 35 | Head | Steam Fitter | Michigan |
| 2 | Germain Packard | 29 | Wife | Machine Operator | Michigan |
| 3 | Harvey Packard | 5 | Son | — | Michigan |
| 4 | Arthur Packard | 3 | Son | — | Michigan |
| 5 | James Packard | 2 | Son | — | Michigan |
| 6 | Lawrence Dansereau | 29 | Head | Machine Operator | Michigan |
| 7 | Irene Dansereau | 20 | Wife | — | Michigan |
| 8 | Rose Slezak | 65 | Mother-in-law | — | Germany |
| 9 | Frank Slezak | 48 | Brother-in-law | Shaper Operator | Michigan |
| 10 | Ladislaus Bukowski | 56 | Head | Meat Cutter | Michigan |
| 11 | Rose Bukowski | 56 | Wife | — | Michigan |
| 12 | Edwin Bukowski | 26 | Son | Meat Cutter | Michigan |
| 13 | Eugene Bukowski | 24 | Son | Sawyer Helper | Michigan |
| 14 | Emily Bukowski | 21 | Daughter | Assembler | Michigan |
| 15 | Ladislaus Jr. Bukowski | 16 | Son | — | Michigan |
| 17 | Agnes Lewandowski | 81 | Head | — | Poland |
| 18 | Casimir Lewandowski | 50 | Son | Salesman | Michigan |
| 19 | Gertrude Lewandowski | 38 | Daughter | Dress Maker | Michigan |
| 20 | Alvin L. Pridges | 30 | Head | Patrolman | Louisiana |
| 21 | Theresa Pridges | 34 | Wife | Part Proprietor | Michigan |
| 22 | Lester L. Pridges | 15 | Son | — | Michigan |
| 23 | Edward Nowicki | 47 | Head | Fireman | Michigan |
| 24 | Rose Nowicki | 50 | Wife | — | Michigan |
| 25 | William Nowicki | 8 | Son | — | Michigan |
| 26 | Thomas Nowicki | 7 | Son | — | Michigan |
| 28 | Frank Szczesniak | 40 | Head | Maintenance | Michigan |
| 29 | Helen Szczesniak | 41 | Wife | — | Michigan |
| 30 | Romaine Szczesniak | 17 | Daughter | — | Michigan |
| 31 | Jeannette Szczesniak | 12 | Daughter | — | Michigan |
| 33 | John Schwartz THIS PERSON | 49 | Head | Coppersmith | Michigan |
| 34 | Anna Schwartz | 50 | Wife | — | Michigan |
| 35 | Maurice Schwartz | 24 | Son | Chauffeur | Michigan |
| 36 | Caroline Schwartz | 22 | Daughter | Housework | Michigan |
| 37 | Edward Schwartz | 20 | Son | Coppersmith | Michigan |
| 38 | Irene Schwartz | 15 | Daughter | — | Michigan |
| 39 | Viola Schwartz | 13 | Daughter | — | Michigan |
| 40 | Adeline Schwartz | 10 | Daughter | — | Michigan |
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)