CS
Charles Shaffer — 1940 US Census Record
Model Tree available1940 United States Federal Census · Baltimore-County, Maryland
Our Model Tree links this Charles Shaffer across the 1920, 1930 and 1940 US Censuses in Baltimore-County, Maryland (XGBoost, ~Confirmed), with identified parents William & Mary — first a head (b.~1908), then head of a 5-person household.
Age 32
b. ~1908
Male
Head
Born: Maryland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Baltimore-County, Maryland |
| Surname | Shaffer |
| Given Name | Charles L |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 32 |
| Marital Status | Married |
| Birthplace | Maryland |
| 1935 Residence (City) | Election District 7 |
| 1935 Residence (County) | Baltimore |
| Additional Details | |
| Occupation | Laborer |
| Industry | City water department |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 855 |
| Highest Grade | 7 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Occupation | Laborer |
| Township / Ward | Election District 7 |
| Est. Birth Year | ~1908 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Charles | Age | Birth yr |
|---|---|---|---|---|
| Mary Shaffer | Daughter | — | 5 | ~1935 |
| Katherine Shaffer | Daughter | — | 4 | ~1936 |
| Pearl Shaffer | Other | — | 14 | ~1926 |
| Charles Shaffer | Head | — | 32 | ~1908 |
| Anna Shaffer | Spouse | — | 27 | ~1913 |
Census Appearances
1920
Baltimore, Maryland
Son, age 11
Baltimore, Maryland · implied b. ~1909 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Shaffer |
| Given Name | Charles S |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1930
Baltimore, Maryland
Other, age 22
Baltimore, Maryland · implied b. ~1908 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Shaffer |
| Given Name | Charles |
| Relationship to Head | Brother |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Occupation | Laborer |
| Industry | Odd Job |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Baltimore-County, Maryland
Head, age 32
Baltimore-County, Maryland · implied b. ~1908 — 5 household members
| Surname | Shaffer |
| Given Name | Charles L |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 32 |
| Marital Status | Married |
| Birthplace | Maryland |
| 1935 Residence (City) | Election District 7 |
| 1935 Residence (County) | Baltimore |
| Occupation | Laborer |
| Industry | City water department |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 855 |
| Highest Grade | 7 |
| 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 Charles Shaffer across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father William Shaffer (~0.92 confidence) and mother Mary Shaffer (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
William Shaffer
b. ~1854
Source father
● Household
· direct · ~0.92
Mother
Mary Shaffer
b. ~1864
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Charles Shaffer
Head · 1940 · age 32 · b. ~1908 · Maryland
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Baltimore-County, Maryland
Open full size
1940 US Federal Census — Baltimore-County, Maryland
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01504-00389)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Hazel J Slue | 13 | Daughter | — | Pennsylvania |
| 42 | Gloria R Slue | 12 | Daughter | — | Pennsylvania |
| 43 | Lottie A Slue | 11 | Daughter | — | Pennsylvania |
| 44 | Lloyd H Jr Slue | 9 | Son | — | Pennsylvania |
| 45 | Betty L Slue | 7 | Daughter | — | Pennsylvania |
| 46 | Nancy L Slue | 3 | Daughter | — | Maryland |
| 47 | Ambrose W Karn | 43 | Head | Machinist | Maryland |
| 48 | Helen C Karn | 35 | Wife | — | Netherlands |
| 49 | Blifford Karn | 14 | Son | — | Maryland |
| 50 | Helen M Karn | 11 | Daughter | — | Maryland |
| 51 | William M Karn | 11 | Son | — | Maryland |
| 52 | Robert E Karn | 8 | Son | — | Maryland |
| 53 | Wilbur R Karn | 5 | Son | — | Maryland |
| 54 | Sterling Schaffer | 37 | Head | Laborer | Maryland |
| 55 | Ada B Schaffer | 35 | Wife | — | Maryland |
| 56 | Audrey P Schaffer | 15 | Daughter | — | Maryland |
| 57 | Horace L Schaffer | 14 | Son | — | Maryland |
| 58 | Robert W Schaffer | 13 | Son | — | Maryland |
| 59 | Sterling L Schaffer | 11 | Son | — | Maryland |
| 60 | Phyllis W Schaffer | 1 | Daughter | — | Maryland |
| 61 | Thomas E Baker | 70 | Head | — | Maryland |
| 62 | Catherine Baker | 70 | Wife | — | Maryland |
| 63 | Charles L Shaffer THIS PERSON | 32 | Head | Laborer | Maryland |
| 64 | Anna B Shaffer | 27 | Wife | — | Virginia |
| 65 | Mary R Shaffer | 5 | Daughter | — | Maryland |
| 66 | Katherine B Shaffer | 4 | Daughter | — | Maryland |
| 67 | Pearl J Shaffer | 14 | Niece | — | Maryland |
| 68 | Lewis D Bubb | 41 | Head | Mechanic | Maryland |
| 69 | Naomi A Bubb | 28 | Wife | — | Maryland |
| 70 | Donald L Bubb | 5 | Son | — | Maryland |
| 71 | Patsy M Bubb | 2 | Daughter | — | Maryland |
| 72 | Gloria Delaney | 11 | Lodger | — | Maryland |
| 73 | Harry A Bull | 58 | Head | Farmer | Maryland |
| 74 | Harry E Bull | 27 | Son | Laborer | Maryland |
| 75 | Clarence E Bull | 57 | Head | Engineer | Maryland |
| 76 | Nellie E Bull | 56 | Wife | — | Maryland |
| 77 | Melvin O Bull | 33 | Son | Farmer | Maryland |
| 78 | Alice H Bull | 33 | Wife | — | Maryland |
| 79 | Betty J Bull | 8 | Daughter | — | Maryland |
| 80 | Clarence M Bull | 5 | Son | — | Maryland |
Pedigree Summary
Charles
Gen 1 · 2 parents
~0.92
Max depth 4 (1900–1950 window)
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)