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William Schaefer — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Scott-County, Iowa
Our Model Tree links this William Schaefer across the 1920, 1930 and 1940 US Censuses in Scott-County, Iowa (XGBoost, ~Confirmed) — first a head (b.~1861), then head of a 3-person household.
Age 79
b. ~1861
Male
Head
Born: Iowa
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Scott-County, Iowa |
| Surname | Schaefer |
| Given Name | William F. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 79 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Davenport City |
| 1935 Residence (County) | Scott |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same House |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Davenport City |
| Est. Birth Year | ~1861 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Selma Schaefer | Daughter | — | 48 | ~1892 |
| William Schaefer | Head | — | 79 | ~1861 |
| Adelina Schaefer | Spouse | — | 76 | ~1864 |
Census Appearances
Head, age 56
Scott, Iowa · implied b. ~1864 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Shaffer |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 56 |
| Marital Status | Married |
| Birthplace | Iowa |
| Father's Birthplace | Germany |
| Mother's Birthplace | Pennsylvania |
| Occupation | Carpenter |
| Industry | House |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Scott, Iowa
Head, age 66
Scott, Iowa · implied b. ~1864 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Schaffer |
| Given Name | William H |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 66 |
| Marital Status | Married |
| Birthplace | Iowa |
| Age at First Marriage | 23 |
| Father's Birthplace | Germany |
| Mother's Birthplace | Pennsylvania |
| Occupation | Retired |
| Industry | Farmer |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 3000 |
| Radio Set | R |
| Veteran | No |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Scott-County, Iowa
Head, age 79
Scott-County, Iowa · implied b. ~1861 — 3 household members
| Surname | Schaefer |
| Given Name | William F. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 79 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Davenport City |
| 1935 Residence (County) | Scott |
| Class of Worker | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same House |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
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 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
William Schaefer
Head · 1940 · age 79 · b. ~1861 · Iowa
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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 — Scott-County, Iowa
Open full size
1940 US Federal Census — Scott-County, Iowa
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-01202-00936)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | J. George Gradert | 32 | Head | Printer | Iowa |
| 2 | Marie A. Gradert | 33 | Wife | Secretary | Iowa |
| 3 | Elmer R. Sharp | 59 | Head | Mechanic | Illinois |
| 4 | Bertha B. Sharp | 55 | Wife | — | Minnesota |
| 5 | Mildred V. Fries | 36 | Daughter | Stenographer | Iowa |
| 6 | Shirley Ann Fries | 11 | Daughter | — | Iowa |
| 7 | William D. Vecton | 50 | Head | Inspector | Iowa |
| 8 | Theresa Vecton | 50 | Wife | — | Iowa |
| 9 | Louise Vecton | 25 | Daughter | Registered Nurse | Iowa |
| 10 | Doris Vecton | 23 | Daughter | Stenographer | Iowa |
| 11 | Jean Vecton | 19 | Daughter | Assistant | Iowa |
| 12 | William Vecton | 17 | Son | — | Iowa |
| 13 | Lafayette C. Goodland | 45 | Head | Manager | Michigan |
| 14 | Adeline K. Goodland | 39 | Wife | — | Illinois |
| 15 | Corinne J. Goodland | 18 | Daughter | — | Wisconsin |
| 16 | Lafayette Paul Goodland | 10 | Son | — | Arkansas |
| 17 | Joseph W. Hammill | 23 | Head | Night Foreman | Iowa |
| 18 | Neta M. Hammill | 23 | Wife | — | Missouri |
| 19 | Marlene J. Hammill | 6 | Daughter | — | Iowa |
| 20 | Dixie Lee Hammill | 4 | Daughter | — | Iowa |
| 21 | Mary J. Hammill | 49 | Mother | Seamstress | Iowa |
| 22 | William F. Schaefer THIS PERSON | 79 | Head | — | Iowa |
| 23 | Adelina Schaefer | 76 | Wife | — | Iowa |
| 24 | Selma Schaefer | 48 | Daughter | Saleslady | Iowa |
| 25 | Christian Jr. Mehl | 51 | Head | Clerk | Germany |
| 26 | Florence Mehl | 58 | Wife | — | Iowa |
| 27 | Margaret Walter | 46 | Head | — | Iowa |
| 28 | Gerald Walter | 23 | Son | Apprentice Printer | Iowa |
| 29 | Robert Walter | 18 | Son | — | Iowa |
| 30 | Mamie Black | 67 | Sister | Laundress | Iowa |
| 31 | Edward Zunquith | 50 | Head | Sales Manager | Iowa |
| 32 | Dorothy Ruth Zunquith | 29 | Daughter | Cashier | Iowa |
| 33 | John L. Zunquith | 24 | Son | Co-Partner | Tennessee |
| 34 | Mildred B. Zunquith | 20 | Daughter in law | — | Iowa |
| 35 | Thomas H. Quail | 30 | Head | Salesman | Wisconsin |
| 36 | Patricia M. Quail | 26 | Wife | — | Iowa |
| 37 | Thomas H. Quail | 1 | Son | — | Iowa |
| 38 | Clotilde V. Cervantes | 30 | Maid | Maid | Mexico |
| 39 | Herbert Silberstein | 32 | Head | Teacher | Iowa |
Related Census Records
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)