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William Schaefer — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Baltimore-City-County, Maryland
Our Model Tree links this William Schaefer across the 1930 and 1940 US Censuses in Baltimore-City-County, Maryland (XGBoost, ~Confirmed) — first a son (b.~1930), then head of a 8-person household.
Age 10
b. ~1930
Male
Son
Born: MARYLAND
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Baltimore-City-County, Maryland |
| Surname | SCHAEFER |
| Given Name | WILLIAM JR. |
| Relationship to Head | SON |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | MARYLAND |
| 1935 Residence (City) | BALTIMORE-CITY |
| 1935 Residence (County) | Baltimore City |
| Additional Details | |
| Highest Grade | No 3 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Township / Ward | Baltimorecity |
| Est. Birth Year | ~1930 |
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 William | Age | Birth yr |
|---|---|---|---|---|
| William Schaefer | Head | — | 49 | ~1891 |
| Dorothy Schaefer | Daughter | — | 17 | ~1923 |
| William Schaefer | Son | — | 10 | ~1930 |
| Esther Schaefer | Daughter | — | ~1940 | |
| Phillip Schaefer | Son | — | 6 | ~1934 |
| Edith Schaefer | Daughter | — | 8 | ~1932 |
| Lillian Schaefer | Spouse | — | 42 | ~1898 |
| Lillian Schaefer | Daughter | — | 21 | ~1919 |
Census Appearances
1930
Baltimore, Maryland
Son, age
Baltimore, Maryland · implied b. ~1930 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Shaeffer |
| Given Name | William J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Baltimore-City-County, Maryland
Son, age 10
Baltimore-City-County, Maryland · implied b. ~1930 — 8 household members
| Surname | SCHAEFER |
| Given Name | WILLIAM JR. |
| Relationship to Head | SON |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | MARYLAND |
| 1935 Residence (City) | BALTIMORE-CITY |
| 1935 Residence (County) | Baltimore City |
| Highest Grade | No 3 |
| 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 William Schaefer across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
William Schaefer
Son · 1940 · age 10 · b. ~1930 · Maryland
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Sibling
Esther Schaefer
Sibling · 1940 · age
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Schaefer
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lillian Schaefer
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Phillip Schaefer
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edith Schaefer
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
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-t0627-01541-00504)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Edna E. Herget | 40 | LODGER | Clerical | MARYLAND |
| 2 | Donald M Ziegler | 27 | HEAD | Accountant | MARYLAND |
| 3 | N. Doris Ziegler | 25 | WIFE | — | MARYLAND |
| 4 | D. Lynne Ziegler | 1 | DAUGHTER | — | MARYLAND |
| 5 | Irvin Bohannan | 57 | HEAD | Carrier | VIRGINIA |
| 6 | Carrie Bohannan | 53 | WIFE | — | MARYLAND |
| 7 | Ruth A. Bohannan | 27 | DAUGHTER | Teacher | MARYLAND |
| 8 | William Christopher | 46 | HEAD | Skilled Laborer | PENNSYLVANIA |
| 9 | Catherine Christopher | 27 | WIFE | — | MARYLAND |
| 10 | Nelly Christopher | 9 | DAUGHTER | — | MARYLAND |
| 11 | Charles Christopher | 50 | BROTHER | Butcher | MARYLAND |
| 12 | Charles H. Bender | 37 | IN-LAW | Truck Driver | MARYLAND |
| 13 | Andrew Kromm | 30 | HEAD | Truck Driver | MARYLAND |
| 14 | Antoinette Kromm | 27 | WIFE | — | MARYLAND |
| 15 | Anna Kromm | 2 | DAUGHTER | — | MARYLAND |
| 16 | William L Schaefer | 49 | HEAD | Decorator | MARYLAND |
| 17 | Lillian Schaefer | 42 | WIFE | — | MARYLAND |
| 18 | Lillian Schaefer | 21 | DAUGHTER | Stenographer | MARYLAND |
| 19 | Dorothy Schaefer | 17 | DAUGHTER | — | MARYLAND |
| 20 | William Jr. Schaefer THIS PERSON | 10 | SON | — | MARYLAND |
| 21 | Edith Schaefer | 8 | DAUGHTER | — | MARYLAND |
| 22 | Phillip Schaefer | 6 | SON | — | MARYLAND |
| 23 | Esther Schaefer | 0 | DAUGHTER | — | MARYLAND |
| 24 | Abram Price | 51 | HEAD | Motorman | MARYLAND |
| 25 | Anna Price | 55 | WIFE | — | MARYLAND |
| 26 | Ruby Price | 19 | DAUGHTER | Saleslady | MARYLAND |
| 27 | Ethel Price | 15 | DAUGHTER | — | MARYLAND |
| 28 | Marion Nies | 39 | HEAD | Line Inspector | MARYLAND |
| 29 | Elizabeth Nies | 33 | WIFE | — | MARYLAND |
| 30 | Marion Jr. Nies | 16 | SON | — | MARYLAND |
| 31 | Dorothea Becker | 71 | HEAD | — | GERMANY |
| 32 | Frederic Garrison | 42 | HEAD | Pharmacist | MARYLAND |
| 33 | Frances Garrison | 50 | WIFE | — | MARYLAND |
| 34 | Catherine Garrison | 22 | DAUGHTER | New Worker Operator | MARYLAND |
| 35 | Frederic Jr Garrison | 17 | SON | — | MARYLAND |
| 36 | Phyllis Garrison | 12 | DAUGHTER | — | MARYLAND |
| 37 | Joseph Enis | 50 | HEAD | Painter | MARYLAND |
| 38 | Ella Enis | 27 | WIFE | — | MARYLAND |
| 39 | Geraldine Enis | 2 | DAUGHTER | — | MARYLAND |
| 40 | Harvey G. Warner | 71 | HEAD | Storekeeper | 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)