JH
John Hess — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Baltimore-City-County, Maryland
Our Model Tree links this John Hess across the 1930 and 1940 US Censuses in Baltimore-City-County, Maryland (XGBoost, ~Confirmed) — first a son (b.~1925), then head of a 12-person household.
Age 15
b. ~1925
Male
Son
Born: Maryland
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Baltimore-City-County, Maryland |
| Surname | Hess |
| Given Name | John J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Balto City |
| 1935 Residence (County) | Baltimore City |
| Additional Details | |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Township / Ward | Balto City |
| Est. Birth Year | ~1925 |
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.
12 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Catherine Hess | Daughter | — | 18 | ~1922 |
| Frances Hess | Daughter | — | 12 | ~1928 |
| Mary Hess | Daughter | — | 20 | ~1920 |
| Francis Hess | Head | — | 50 | ~1890 |
| Thomas Mullaney | Other | — | 50 | ~1890 |
| James Hess | Son | — | 2 | ~1938 |
| John Hess | Son | — | 15 | ~1925 |
| Joseph Hess | Son | — | 10 | ~1930 |
| Frank Hess | Son | — | 22 | ~1918 |
| Thomas Hess | Son | — | 25 | ~1915 |
| George Hess | Son | — | 2 | ~1938 |
| Margaret Hess | Spouse | — | 44 | ~1896 |
Census Appearances
1930
Baltimore, Maryland
Son, age 4
Baltimore, Maryland · implied b. ~1926 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hess |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 4 |
| 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 15
Baltimore-City-County, Maryland · implied b. ~1925 — 12 household members
| Surname | Hess |
| Given Name | John J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Balto City |
| 1935 Residence (County) | Baltimore City |
| Highest Grade | No 6 |
| 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 Hess across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Hess
Son · 1940 · age 15 · b. ~1925 · Maryland
★ You are viewing this record
Sibling
Catherine Hess
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Hess
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Frances Hess
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas Hess
Sibling · 1940 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
George Hess
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Hess
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Hess
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Frank Hess
Sibling · 1940 · age 22
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-t0627-01538-00395)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Howard H. Sprinkle | 29 | Head | Welder | Pennsylvania |
| 42 | Dorothy Sprinkle | 25 | Wife | — | Pennsylvania |
| 43 | Gustaf Gutnecht | 43 | Head | Trucking | Poland |
| 44 | Bertha Gutnecht | 43 | Wife | — | Poland |
| 45 | Joseph Phillips | 50 | Lodger | Mechanic | New York |
| 46 | Arthur De Vaughn | 38 | Head | Truck Driver | Maryland |
| 47 | Sarah De Vaughn | 36 | Wife | — | Maryland |
| 48 | Raymond De Vaughn | 20 | Son | Truck Driver | Maryland |
| 49 | Marie De Vaughn | 18 | Wife | Packer | Maryland |
| 50 | Francis M. Hess | 50 | Head | Roller | Maryland |
| 51 | Margaret E. Hess | 44 | Wife | — | Maryland |
| 52 | Thomas E. Hess | 25 | Son | — | Maryland |
| 53 | Frank J. Hess | 22 | Son | Blocker | Maryland |
| 54 | Mary E. Hess | 20 | Daughter | Lid Maker | Maryland |
| 55 | Catherine E. Hess | 18 | Daughter | — | Maryland |
| 56 | John J. Hess THIS PERSON | 15 | Son | — | Maryland |
| 57 | Frances M. Hess | 12 | Daughter | — | Maryland |
| 58 | Joseph C. Hess | 10 | Son | — | Maryland |
| 59 | James L. Hess | 2 | Son | — | Maryland |
| 60 | George W. Hess | 2 | Son | — | Maryland |
| 61 | Thomas Mullaney | 50 | Lodger | Laborer | Maryland |
| 62 | Stephen Tysinski | 49 | Head | Fireman | Poland |
| 63 | Margaret Tysinski | 47 | Wife | — | Maryland |
| 64 | Frank Tysinski | 24 | Son | Laborer | Maryland |
| 65 | Agnes Tysinski | 21 | Daughter | Sorter | Maryland |
| 66 | Joseph Tysinski | 19 | Son | — | Maryland |
| 67 | Rita Tysinski | 12 | Daughter | — | Maryland |
| 68 | Raymond Powell | 35 | Head | Molder | Pennsylvania |
| 69 | Dorothy Powell | 34 | Wife | — | Maryland |
| 70 | Raymond Jr. Powell | 11 | Son | — | Maryland |
| 71 | Doris Powell | 9 | Daughter | — | Maryland |
| 72 | Robert S. Powell | 8 | Son | — | Maryland |
| 73 | John Hall | 20 | Head | Mechanic | West Virginia |
| 74 | Pauline E. Hall | 20 | Wife | — | West Virginia |
| 75 | Mary E. Boog | 74 | Head | Domestic | Maryland |
| 76 | Clarence E. Boog | 41 | Son | Shearman | Maryland |
| 77 | William C. Boog | 10 | Nephew | — | Maryland |
| 78 | George Aull | 39 | Head | Electrician | Maryland |
| 79 | Gertrude Aull | 40 | Wife | — | Maryland |
| 80 | Jacob Aull | 19 | Son | — | Maryland |
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)