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William Schaefer — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Dakota-County, Minnesota
Our Model Tree links this William Schaefer across the 1930 and 1940 US Censuses in Dakota-County, Minnesota (XGBoost, ~Confirmed) — first a head (b.~1892), then head of a 9-person household.
Age 48
b. ~1892
Male
Head
Born: Minnesota
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Dakota-County, Minnesota |
| Surname | Schaefer |
| Given Name | William H. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 48 |
| Marital Status | Married |
| Birthplace | Minnesota |
| 1935 Residence (City) | St. Paul |
| 1935 Residence (County) | Dakota |
| Additional Details | |
| Occupation | Furnace Installer |
| Industry | Heating & Air Conditioning |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1200 |
| Highest Grade | No 8 |
| 1935 Residence | Same Place |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
| Occupation | Furnace Installer |
| Township / Ward | St Paul |
| Est. Birth Year | ~1892 |
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 William | Age | Birth yr |
|---|---|---|---|---|
| Ora Schaefer | Daughter | — | 13 | ~1927 |
| Harold Schaefer | Son | — | 3 | ~1937 |
| Ira Schaefer | Daughter | — | 15 | ~1925 |
| Donald Schaefer | Son | — | 9 | ~1931 |
| William Schaefer | Son | — | 7 | ~1933 |
| Hazel Schaefer | Spouse | — | 38 | ~1902 |
| Melva Schaefer | Daughter | — | 10 | ~1930 |
| Gordon Schaefer | Son | — | 16 | ~1924 |
| William Schaefer | Head | — | 48 | ~1892 |
Census Appearances
1930
Dakota, Minnesota
Head, age 37
Dakota, Minnesota · implied b. ~1893 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Schaffer |
| Given Name | William J. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Minnesota |
| Age at First Marriage | 24 |
| Father's Birthplace | Minnesota |
| Mother's Birthplace | Minnesota |
| Occupation | Farmer |
| Industry | Stock Farm |
| Class of Worker | O |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Veteran | No |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1940
Dakota-County, Minnesota
Head, age 48
Dakota-County, Minnesota · implied b. ~1892 — 9 household members
| Surname | Schaefer |
| Given Name | William H. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 48 |
| Marital Status | Married |
| Birthplace | Minnesota |
| 1935 Residence (City) | St. Paul |
| 1935 Residence (County) | Dakota |
| Occupation | Furnace Installer |
| Industry | Heating & Air Conditioning |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1200 |
| Highest Grade | No 8 |
| 1935 Residence | Same Place |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
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 William Schaefer across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
William Schaefer
Head · 1940 · age 48 · b. ~1892 · Minnesota
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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 — Dakota-County, Minnesota
Open full size
1940 US Federal Census — Dakota-County, Minnesota
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01918-00008)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Lois Ehlert | 23 | Wife | — | Minnesota |
| 2 | James W. Jones | 53 | Head | Boiler Maker | Nebraska |
| 3 | Kathryn M. Jones | 43 | Wife | — | Minnesota |
| 4 | James R. Jones | 21 | Son | Stockman | Montana |
| 5 | Kathryn B. Jones | 18 | Daughter | Stenographer | Nebraska |
| 6 | Joanne M. Jones | 5 | Daughter | — | Minnesota |
| 7 | Conrad O. Youngstrom | 35 | Head | Clerk | Minnesota |
| 8 | Olaf Youngstrom | 76 | Father | — | Sweden |
| 9 | Clara Youngstrom | 70 | Mother | — | Sweden |
| 10 | Hans Sater | 69 | Head | Retired | Norway |
| 11 | Louise M. Sater | 59 | Wife | — | Norway |
| 12 | Edwin Schowalter | 49 | Head | Sheet Metal W. | Wisconsin |
| 13 | Emilie Schowalter | 46 | Wife | — | Germany |
| 14 | Hartley Danck | 34 | Head | General Manager | Minnesota |
| 15 | Lillian Danck | 36 | Wife | — | Minnesota |
| 16 | Edward J. Jacobson | 40 | Head | Assistant Foreman | Minnesota |
| 17 | Arline O. Jacobson | 37 | Wife | — | Illinois |
| 18 | Maynard E. Jacobson | 9 | Son | — | Minnesota |
| 19 | Dorothy V. Jacobson | 7 | Daughter | — | Minnesota |
| 20 | William F. Jamborski | 40 | Head | Ham Sealer | Austria |
| 21 | Mary C. Jamborski | 36 | Wife | — | Austria |
| 22 | Florence R. Jamborski | 13 | Daughter | — | Minnesota |
| 23 | Geraldine H. Jamborski | 6 | Daughter | — | Minnesota |
| 24 | Margery V. Burch | 45 | Head | — | Missouri |
| 25 | Jane Burch | 20 | Daughter | — | Minnesota |
| 26 | Mary R. Burch | 13 | Daughter | — | Minnesota |
| 27 | William H. Schaefer THIS PERSON | 48 | Head | Furnace Installer | Minnesota |
| 28 | Hazel F. Schaefer | 38 | Wife | — | Minnesota |
| 29 | Gordon Schaefer | 16 | Son | Carrier | Minnesota |
| 30 | Ira Mae Schaefer | 15 | Daughter | Clerk | Minnesota |
| 31 | Ora F. Schaefer | 13 | Daughter | — | Minnesota |
| 32 | Melva E. Schaefer | 10 | Daughter | — | Minnesota |
| 33 | Donald E. Schaefer | 9 | Son | — | Minnesota |
| 34 | William F. Schaefer | 7 | Son | — | Minnesota |
| 35 | Harold P. Schaefer | 3 | Son | — | Minnesota |
| 36 | Joseph Schhammer | 43 | Head | Laborer | Germany |
| 37 | Agnes Schhammer | 42 | Wife | — | Germany |
| 38 | George Schhammer | 17 | Son | — | Minnesota |
| 39 | Myrtle R. Schhammer | 16 | Daughter | — | Minnesota |
| 40 | Lea A. Schhammer | 13 | Son | — | Minnesota |
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)