JH
John Hoffman — 1940 US Census Record
Model Tree available1940 United States Federal Census · Washington-County, Maryland
Our Model Tree links this John Hoffman across the 1920, 1930 and 1940 US Censuses in Washington-County, Maryland (XGBoost, ~Confirmed), with identified parents Lloyd & Lloyd — first a son (b.~1904), then head of a 6-person household.
Age 36
b. ~1904
Male
Son
Born: Maryland
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Washington-County, Maryland |
| Surname | Hoffman |
| Given Name | John W. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 36 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Hagerstown |
| 1935 Residence (County) | Washington |
| Additional Details | |
| Occupation | Real Estate |
| Industry | Real Estate Co |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 276 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Occupation | Real Estate |
| Township / Ward | Hagerstown |
| Est. Birth Year | ~1904 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Lloyd Hoffman | Head | — | 73 | ~1867 |
| Wanda Mellett | Other | — | 18 | ~1922 |
| Mildred Steiron | Other | — | 41 | ~1899 |
| Lloyd Hoffman | Son | — | 35 | ~1905 |
| John Hoffman | Son | — | 36 | ~1904 |
| Laura Hoffman | Spouse | — | 68 | ~1872 |
Census Appearances
1920
Washington, Maryland
Son, age 16
Washington, Maryland · implied b. ~1904 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hoffman |
| Given Name | John W. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| 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
Washington, Maryland
Son, age 26
Washington, Maryland · implied b. ~1904 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hoffman |
| Given Name | John W. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Occupation | Clerk |
| Industry | Railroad Office |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Washington-County, Maryland
Son, age 36
Washington-County, Maryland · implied b. ~1904 — 6 household members
| Surname | Hoffman |
| Given Name | John W. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 36 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Hagerstown |
| 1935 Residence (County) | Washington |
| Occupation | Real Estate |
| Industry | Real Estate Co |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 276 |
| Highest Grade | Hs 4 |
| 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 John Hoffman across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Lloyd Hoffman (~0.92 confidence) and father Lloyd Hoffman (~0.92 confidence) and mother Laura Hoffman (~0.92 confidence) and father Lloyd Hoffman (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Lloyd Hoffman
b. ~1867
Source father
● Household
· direct · ~0.92
Father
Lloyd Hoffman
b. ~1867
Source father
● Household
· direct · ~0.92
Mother
Laura Hoffman
b. ~1872
Source mother
● Household
· direct · ~0.92
Father
Lloyd Hoffman
b. ~1877
Source father
● Household
· direct · ~0.92
This person
Anchor record
John Hoffman
Son · 1940 · age 36 · b. ~1904 · Maryland
★ You are viewing this record
Sibling
Lloyd Hoffman
Sibling · 1940 · age 35
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 — Washington-County, Maryland
Open full size
1940 US Federal Census — Washington-County, Maryland
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01561-00825)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Mary L. D. Hershey | 60 | Head | — | Maryland |
| 2 | W. Earl Hershey | 46 | Brother | Salesman | Maryland |
| 3 | John C. Bondurant | 42 | Head | Manager | Alabama |
| 4 | Ruth D. Bondurant | 40 | Wife | — | Alabama |
| 5 | Ann Bondurant | 17 | Daughter | — | Wash. D. C. |
| 6 | Joan C. Bondurant | 5 | Daughter | — | Maryland |
| 7 | A. H. Campbell | 51 | Head | — | Pennsylvania |
| 8 | Marguerite W. Campbell | 55 | Daughter | — | Pennsylvania |
| 9 | Clara E. Patterson | 57 | Sister | — | Pennsylvania |
| 10 | H. Edward Anderson | 45 | Head | Dry Cleaner | Maryland |
| 11 | Pauline W. Anderson | 40 | Wife | — | Maryland |
| 12 | Kate R. Bartles | 59 | Servant | Housework | Maryland |
| 13 | J. Edward Harms | 54 | Head | Minister | Georgia |
| 14 | Helen O. D. Harms | 55 | Wife | — | Pennsylvania |
| 15 | Jane E. Harms | 24 | Daughter | Secretary | Ohio |
| 16 | John Edward Harms | 18 | Son | — | Maryland |
| 17 | Lloyd R. Hoffman | 73 | Head | Chief Judge | Maryland |
| 18 | Laura B. Hoffman | 68 | Wife | — | Maryland |
| 19 | John W. Hoffman THIS PERSON | 36 | Son | Real Estate | Maryland |
| 20 | Lloyd A. Hoffman | 35 | Son | Medical Dr | Maryland |
| 21 | Mildred Steiron | 41 | Lodger | Stenographer | Maryland |
| 22 | Wanda Mellett | 18 | Servant | Maid | Maryland |
| 23 | Carl K. Stonebreaker | 50 | Head | Manager-Treas | Maryland |
| 24 | Helen Stonebreaker | 46 | Wife | — | Maryland |
| 25 | Mary H. Stonebreaker | 11 | Daughter | — | Maryland |
| 26 | Ambrose C. Foreman | 53 | Head | Salesman | Pennsylvania |
| 27 | Ann C. Foreman | 50 | Wife | — | Maryland |
| 28 | Martha Foreman | 25 | Daughter | Physical Dir | Maryland |
| 29 | Elizabeth J. Foreman | 24 | Daughter | Mail Clerk | Maryland |
| 30 | Julia A. Foreman | 20 | Daughter | — | Maryland |
| 31 | Ann A. Foreman | 19 | Daughter | — | Maryland |
| 32 | Louis Myers | 57 | Head | Merchant | Maryland |
| 33 | Mary Maude Myers | 50 | Wife | — | Virginia |
| 34 | Evelyn I. Myers | 24 | Daughter | Clerk | Maryland |
| 35 | Melvin H. Myers | 22 | Son | Clerk | Maryland |
| 36 | Dorothy L. Myers | 19 | Daughter | — | Maryland |
| 37 | Frank S. Leiter | 58 | Head | Merchant | Maryland |
| 38 | Edna Mcc. Leiter | 54 | Wife | — | Maryland |
| 39 | Edna May Leiter | 22 | Daughter | Clerk | Maryland |
| 40 | Franklin S. Leiter | 20 | Son | Weaver | Maryland |
Pedigree Summary
John + 1 sibling
Gen 1 · 4 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)