JG
John Gross — 1930 US Census Record
Model Tree available1930 United States Federal Census · Bronx, New York
Our Model Tree links this John Gross across the 1920, 1930 and 1940 US Censuses in Bronx, New York (XGBoost, ~Confirmed), with identified parents Carl & Charles — first a son (b.~1910), then head of a 6-person household.
Age 20
b. ~1910
Male
Son
Born: New York
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Bronx, New York |
| Surname | Gross |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Additional Details | |
| Occupation | Clerk |
| Industry | Steamship Line |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
| Occupation | Clerk |
| Township / Ward | Bronx |
| Est. Birth Year | ~1910 |
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 John | Age | Birth yr |
|---|---|---|---|---|
| Charles Gross | Head | — | 50 | ~1880 |
| John Gross | Son | — | 20 | ~1910 |
| Nannie Gross | Spouse | — | 55 | ~1875 |
| Alice Mullbaumer | Other | — | 6 | ~1924 |
| Henry Mullbaumer | Other | — | 31 | ~1899 |
| Alice Mullbaumer | Other | — | 24 | ~1906 |
Census Appearances
1920
Bronx, New …
Son, age 9
Bronx, New York · implied b. ~1911 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Gross |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Speaks English | Yes |
| Mother Tongue | German |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1930
Bronx, New …
Son, age 20
Bronx, New York · implied b. ~1910 — 6 household members
| Surname | Gross |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Occupation | Clerk |
| Industry | Steamship Line |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1940
Bronx-County, New …
Son, age 30
Bronx-County, New York · implied b. ~1910 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Grosz |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (City) | New York City |
| 1935 Residence (County) | Bronx |
| Occupation | Bookkeeper |
| Industry | Business machines |
| Class of Worker | PW |
| Hours Worked | 11 |
| Income (1939) | 1250 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
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 Gross across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Carl Gross (~0.92 confidence) and father Charles Grosz (~0.92 confidence) and mother Margaret Gross (~0.92 confidence) and mother Margaret Grosz (~0.92 confidence) and mother Nannie Gross (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Carl Gross
b. ~1879
Source father
● Household
· direct · ~0.92
Father
Charles Grosz
b. ~1879
Source father
● Household
· direct · ~0.92
Mother
Margaret Gross
b. ~1876
Source mother
● Household
· direct · ~0.92
Mother
Margaret Grosz
b. ~1875
Source mother
● Household
· direct · ~0.92
Mother
Nannie Gross
b. ~1875
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Gross
Son · 1930 · age 20 · b. ~1910 · New York
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Bronx, New York
Open full size
1930 US Federal Census — Bronx, New York
Page Contents
49 people indexed on this census page (ia:1930:newyorkcensus00reel1470:0753)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Jacob Stolnitz | 56 | Head | Tailor | Russia |
| 2 | Sophie Stolnitz | 55 | Wife | — | Russia |
| 3 | Morris Stolnitz | 30 | Son | — | Russia |
| 4 | Molly Stolnitz | 25 | Daughter | Dentist | Russia |
| 5 | Sybil Stolnitz | 18 | Daughter | Bookkeeper | New York |
| 6 | Sam Langer | 31 | Head | Bookkeeper | Russia |
| 7 | Hattie Langer | 29 | Wife | Chauffeur | New York |
| 8 | Robert Langer | 8 | Son | — | New York |
| 9 | Leonore Langer | 4 | Daughter | — | New York |
| 10 | Edward Hirsch | 22 | Boarder | — | New York |
| 11 | Solomon Hirsch | 19 | Boarder | Pharmacist | New York |
| 12 | Louis Hirsch | 65 | Boarder | Retired | Rumania |
| 13 | Harry Portnoy | 46 | Head | Tailor | Russia |
| 14 | Rose Portnoy | 43 | Wife | — | Russia |
| 15 | Lena Portnoy | 21 | Daughter | Bookkeeper | New York |
| 16 | Morris Portnoy | 19 | Son | — | New York |
| 17 | Louis Portnoy | 24 | Son | — | New York |
| 18 | Harry Friedman | 20 | Boarder | Operator | New York |
| 19 | Abraham Podolsky | 58 | Head | Retired | Russia |
| 20 | Rose Podolsky | 57 | Wife | — | Russia |
| 21 | Harry Podolsky | 33 | Son | Merchant | Russia |
| 22 | Archie Podolsky | 28 | Son | Merchant | Russia |
| 23 | Isadore Podolsky | 26 | Daughter | Saleslady | Russia |
| 24 | Nathan Podolsky | 24 | Son | Clerk | Russia |
| 25 | Gertrude Podolsky | 21 | Daughter | Clerk | Russia |
| 26 | Isaac Braunfeld | 52 | Head | Salesman | Rumania |
| 27 | Fannie Braunfeld | 52 | Wife | — | Rumania |
| 28 | Bertha Braunfeld | 23 | Daughter | Stenographer | England |
| 29 | Hilda Braunfeld | 21 | Daughter | Stenographer | New York |
| 30 | Meyer Braunfeld | 19 | Son | — | New York |
| 31 | Mildred Braunfeld | 16 | Daughter | Stenographer | New York |
| 32 | Arthur Fritz | 25 | Head | Painter | New York |
| 33 | Tilllie Fritz | 25 | Wife | — | New York |
| 34 | Hermine Fritz | 0 | Daughter | — | New York |
| 35 | Charles Gross | 50 | Head | Watchman | Germany |
| 36 | Nannie Gross | 55 | Wife | — | Germany |
| 37 | Alice Mullbaumer | 24 | Boarder | — | New York |
| 38 | Henry Mullbaumer | 31 | Boarder | Porter | Germany |
| 39 | Alice Mullbaumer | 6 | Boarder | — | New York |
| 40 | John Gross THIS PERSON | 20 | Son | Clerk | New York |
| 41 | Charles Epstein | 50 | Head | Operator | Russia |
| 42 | Dora Epstein | 45 | Wife | — | Russia |
| 43 | Shirley Epstein | 25 | Daughter | Stenographer | New York |
| 44 | Hazel Epstein | 23 | Daughter | Bookkeeper | New York |
| 45 | Rose Epstein | 19 | Daughter | Stenographer | New York |
| 46 | Goldie Epstein | 16 | Daughter | — | New York |
| 47 | Florence Epstein | 11 | Daughter | — | New York |
| 48 | Ludwig Stern | 26 | Boarder | Clerk | Germany |
| 49 | Abraham Glass | 36 | Boarder | Bookbinder | Russia |
Pedigree Summary
John
Gen 1 · 5 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)