WS
William Shaffer — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Carroll-County, Maryland
Our Model Tree links this William Shaffer across the 1930 and 1940 US Censuses in Carroll-County, Maryland (XGBoost, ~Confirmed) — first a son (b.~1929), then head of a 7-person household.
Age 11
b. ~1929
Male
Son
Born: Maryland
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Carroll-County, Maryland |
| Surname | Shaffer |
| Given Name | William H Jr |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Hampstead Town |
| 1935 Residence (County) | Carroll |
| Additional Details | |
| Highest Grade | No 3 |
| 1935 Residence | Same Place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Township / Ward | Hampstead Town |
| Est. Birth Year | ~1929 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Robert Shaffer | Son | — | 5 | ~1935 |
| Earl Shaffer | Son | — | 9 | ~1931 |
| William Shaffer | Head | — | 34 | ~1906 |
| Dorothy Shaffer | Spouse | — | 29 | ~1911 |
| William Shaffer | Son | — | 11 | ~1929 |
| Edith Abbott | Other | — | 21 | ~1919 |
| Sylvia Shaffer | Daughter | — | 13 | ~1927 |
Census Appearances
1930
Carroll, Maryland
Son, age 1
Carroll, Maryland · implied b. ~1929 — 50 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Shaffer |
| Given Name | William H Jr |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Carroll-County, Maryland
Son, age 11
Carroll-County, Maryland · implied b. ~1929 — 7 household members
| Surname | Shaffer |
| Given Name | William H Jr |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Hampstead Town |
| 1935 Residence (County) | Carroll |
| 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 Shaffer across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
William Shaffer
Son · 1940 · age 11 · b. ~1929 · Maryland
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Sibling
Sylvia Shaffer
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Earl Shaffer
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Shaffer
Sibling · 1940 · age 5
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 — Carroll-County, Maryland
Open full size
1940 US Federal Census — Carroll-County, Maryland
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01544-00787)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Herbert W Allgire | 32 | Head | Postal Clerk | Maryland |
| 2 | Grace M Allgire | 34 | Wife | — | Maryland |
| 3 | Shirley M Allgire | 9 | Daughter | — | Maryland |
| 4 | Robert L Allgire | 5 | Son | — | Pennsylvania |
| 5 | Maggie S Armacost | 63 | Head | Grocery Store | Maryland |
| 6 | Gordon Armacost | 37 | Son | Operator | Maryland |
| 7 | Samuel W Shoffer | 53 | Head | Carpenter | Maryland |
| 8 | Gertrude B Shoffer | 52 | Wife | — | Maryland |
| 9 | Edgar J Shoffer | 22 | Son | Truck | Maryland |
| 10 | Joan J Shoffer | 15 | Daughter | — | Maryland |
| 11 | Thomas C Tipton | 49 | Head | House | Maryland |
| 12 | Addie P Tipton | 47 | Wife | — | Maryland |
| 13 | Rhoten M Tipton | 26 | Son | — | Maryland |
| 14 | Betty L Tipton | 3 | Daughter | — | Maryland |
| 15 | Richard Kelbaugh | 81 | Head | — | Maryland |
| 16 | Susan E Kelbaugh | 74 | Wife | — | Maryland |
| 17 | Charlotte Kelbaugh | 40 | Daughter | Clerk | Maryland |
| 18 | Annie Grimm | 69 | Head | — | Maryland |
| 19 | Marie Grimm | 39 | Daughter | Operator | Maryland |
| 20 | Juanita M Grimm | 18 | Daughter | — | Maryland |
| 21 | Emma M Wink | 53 | Head | Retail | Maryland |
| 22 | Willa Margaret Wink | 13 | Daughter | — | Maryland |
| 23 | Edith Boose | 65 | Head | — | Maryland |
| 24 | Raymond Gill | 30 | Head | Machine Operator | Maryland |
| 25 | Frances C Gill | 27 | Wife | Operator | Maryland |
| 26 | William H Shaffer | 34 | Head | Foreman | Maryland |
| 27 | Dorothy L Shaffer | 29 | Wife | Operator | Maryland |
| 28 | Sylvia K Shaffer | 13 | Daughter | — | Maryland |
| 29 | William H Jr Shaffer THIS PERSON | 11 | Son | — | Maryland |
| 30 | Earl F Shaffer | 9 | Son | — | Maryland |
| 31 | Robert L Shaffer | 5 | Son | — | Maryland |
| 32 | Edith Abbott | 21 | Servant | Servant | Maryland |
| 33 | John T Rhoten | 73 | Head | Laborer | Maryland |
| 34 | Ester O Leister | 46 | Daughter | — | Maryland |
| 35 | Lydia B Zeigler | 66 | Head | — | Maryland |
| 36 | James Herbert Ritter | 34 | Son-in-law | Truck Driver | California |
| 37 | Helen K Ritter | 25 | Wife | Seamstress | Maryland |
| 38 | Marcia J Ritter | 1 | Daughter | — | Maryland |
| 39 | Harriett Shriver | 85 | Mother-in-law | — | Maryland |
| 40 | Welper F Hoffacker | 22 | Boarder | Truck | 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)