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William Hess — 1930 US Census Record
Model Tree available1930 United States Federal Census · Baltimore, Maryland
Our Model Tree links this William Hess across the 1920, 1930 and 1940 US Censuses in Baltimore, Maryland (XGBoost, ~Confirmed), with identified parents William & Mary — first a son (b.~1915), then head of a 6-person household.
Age 15
b. ~1915
Male
Son
Born: Maryland
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Baltimore, Maryland |
| Surname | Hess |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Township / Ward | Baltimore City |
| Est. Birth Year | ~1915 |
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 1930 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Mary Hess | Daughter | — | 5 | ~1925 |
| Lina Hess | Daughter | — | 13 | ~1917 |
| William Hess | Head | — | 42 | ~1888 |
| Edna Rotton | Other | — | 2 | ~1928 |
| William Hess | Son | — | 15 | ~1915 |
| Mary Hess | Spouse | — | 41 | ~1889 |
Census Appearances
1920
None, Maryland
Son, age 4
None, Maryland · implied b. ~1916 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Heiss |
| Given Name | William Jr. |
| 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 |
1930
Baltimore, Maryland
Son, age 15
Baltimore, Maryland · implied b. ~1915 — 6 household members
| Surname | Hess |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Can Read/Write | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Baltimore-City-County, Maryland
Head, age 25
Baltimore-City-County, Maryland · implied b. ~1915 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hess |
| Given Name | Willard K. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Married |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore City |
| 1935 Residence (County) | Baltimore City |
| Occupation | Tin-Reener |
| Industry | Steel Corp |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 226 |
| Highest Grade | H-1 |
| 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 Hess across 3 US Census years (1920, 1930 and 1940) in 3 locations, using XGBoost record linkage. Identified parents: father William Heiss (~0.92 confidence) and mother Mary Heiss (~0.92 confidence) and father William Hess (~0.92 confidence) and mother Mary Hess (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
William Heiss
b. ~1885
Source father
● Household
· direct · ~0.92
Mother
Mary Heiss
b. ~1887
Source mother
● Household
· direct · ~0.92
Father
William Hess
b. ~1888
Source father
● Household
· direct · ~0.92
Mother
Mary Hess
b. ~1889
Source mother
● Household
· direct · ~0.92
This person
Anchor record
William Hess
Son · 1930 · age 15 · b. ~1915 · Maryland
★ You are viewing this record
Sibling
Mary Hess
Sibling · 1930 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lina Hess
Sibling · 1930 · age 13
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
1930 US Federal Census — Baltimore, Maryland
Open full size
1930 US Federal Census — Baltimore, Maryland
Page Contents
50 people indexed on this census page (ia:1930:15thcensus866unit:0331)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | William Hess | 42 | Head | Salesman | Maryland |
| 2 | Mary Hess | 41 | Wife | — | Maryland |
| 3 | William Hess THIS PERSON | 15 | Son | — | Maryland |
| 4 | Lina Hess | 13 | Daughter | — | Maryland |
| 5 | Mary Hess | 5 | Daughter | — | Maryland |
| 6 | Edna Rotton | 2 | Grand-child | — | Maryland |
| 7 | William Hess | 45 | Head | Partner | Maryland |
| 8 | Mary Hess | 43 | Wife | — | Maryland |
| 9 | William Hess | 21 | Son | — | Maryland |
| 10 | Mary Hess | 18 | Daughter | — | Maryland |
| 11 | Lina Hess | 15 | Daughter | — | Maryland |
| 12 | John Lihuenia | 45 | Head | Shoe Repairer | Lithuania |
| 13 | Mary Lihuenia | 43 | Wife | — | Lithuania |
| 14 | John Lihuenia | 12 | Son | — | Maryland |
| 15 | John Sumodi | 33 | Head | Plumber | Maryland |
| 16 | Mary Sumodi | 31 | Wife | — | Maryland |
| 17 | John Sumodi | 10 | Son | — | Maryland |
| 18 | Mary Sumodi | 8 | Daughter | — | Maryland |
| 19 | John Hassylman | 45 | Head | Merchant | Maryland |
| 20 | Mary Hassylman | 43 | Wife | — | Maryland |
| 21 | John Hassylman | 15 | Son | — | Maryland |
| 22 | Mary Hassylman | 12 | Daughter | — | Maryland |
| 23 | Lina Hassylman | 10 | Daughter | — | Maryland |
| 24 | John Hammerbacher | 55 | Head | — | Maryland |
| 25 | Mary Hammerbacher | 53 | Wife | — | Maryland |
| 26 | John Hammerbacher | 25 | Son | — | Maryland |
| 27 | Mary Hammerbacher | 21 | Daughter | — | Maryland |
| 28 | John Simon | 50 | Head | Janitor | Maryland |
| 29 | Mary Simon | 48 | Wife | — | Maryland |
| 30 | John Simon | 18 | Son | — | Maryland |
| 31 | Mary Simon | 15 | Daughter | — | Maryland |
| 32 | Lina Simon | 12 | Daughter | — | Maryland |
| 33 | John Simon | 35 | Head | — | Maryland |
| 34 | Mary Simon | 33 | Wife | — | Germany |
| 35 | John Simon | 12 | Son | — | Maryland |
| 36 | Mary Simon | 10 | Daughter | — | Maryland |
| 37 | John Simon | 35 | Head | — | Maryland |
| 38 | Mary Simon | 33 | Wife | — | Maryland |
| 39 | John Simon | 12 | Son | — | Maryland |
| 40 | Mary Simon | 10 | Daughter | — | Maryland |
| 41 | Lina Simon | 8 | Daughter | — | Maryland |
| 42 | John Simon | 5 | Son | — | Maryland |
| 43 | John Simon | 37 | Head | Mechanic | Maryland |
| 44 | Mary Simon | 35 | Wife | — | Maryland |
| 45 | John Simon | 13 | Son | — | Maryland |
| 46 | Thomas Vogel | 45 | Head | Carpenter | Maryland |
| 47 | Mary Vogel | 42 | Wife | — | Maryland |
| 48 | John Vogel | 22 | Son | Machinist | Maryland |
| 49 | Lina Vogel | 18 | Daughter | Fireman | Maryland |
| 50 | John Vogel | 34 | Head | Brakeman | Maryland |
Pedigree Summary
William + 2 siblings
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 1930 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)