FK
Frank Kowalski — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Monmouth, New Jersey
Our Model Tree links this Frank Kowalski across the 1920 and 1930 US Censuses in Monmouth, New Jersey (XGBoost, ~Confirmed) — first a son (b.~1913), then head of a 9-person household.
Age 17
b. ~1913
Male
Son
Born: New Jersey
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Monmouth, New Jersey |
| Surname | Kowalski |
| Given Name | Frank |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | Poland |
| Mother's Birthplace | Poland |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
| Township / Ward | Freehold Township Part |
| Est. Birth Year | ~1913 |
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.
9 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Frank | Age | Birth yr |
|---|---|---|---|---|
| Julia Kowalski | Daughter | — | 11 | ~1919 |
| John Kowalski | Son | — | 9 | ~1921 |
| Sophie Kowalski | Spouse | — | 43 | ~1887 |
| Stanley Kowalski | Head | — | 46 | ~1884 |
| Dorothy Kowalski | Daughter | — | 15 | ~1915 |
| Henry Kowalski | Son | — | 4 | ~1926 |
| Frank Kowalski | Son | — | 17 | ~1913 |
| James Kowalski | Son | — | 18 | ~1912 |
| Annie Kowalski | Daughter | — | 14 | ~1916 |
Census Appearances
1920
Mercer, New …
Son, age 7
Mercer, New Jersey · implied b. ~1913 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Kowalski |
| Given Name | Frank |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | Poland |
| Mother's Birthplace | Poland |
| Occupation | none |
| Speaks English | Yes |
| Mother Tongue | Polish |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1930
Monmouth, New …
Son, age 17
Monmouth, New Jersey · implied b. ~1913 — 9 household members
| Surname | Kowalski |
| Given Name | Frank |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | Poland |
| Mother's Birthplace | Poland |
| Can Read/Write | Yes |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
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 Frank Kowalski across 2 US Census years (1920 and 1930) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Frank Kowalski
Son · 1930 · age 17 · b. ~1913 · New Jersey
★ You are viewing this record
Sibling
James Kowalski
Sibling · 1930 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Julia Kowalski
Sibling · 1930 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Kowalski
Sibling · 1930 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Kowalski
Sibling · 1930 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Annie Kowalski
Sibling · 1930 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Henry Kowalski
Sibling · 1930 · age 4
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 — Monmouth, New Jersey
Open full size
1930 US Federal Census — Monmouth, New Jersey
Page Contents
50 people indexed on this census page (ia:1930:newjerseycensus00reel1370:0939)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Walter Palkowski | 8 | Son | — | New Jersey |
| 52 | Betty Palkowski | 5 | Daughter | — | New Jersey |
| 53 | Lantal Palkowski | 3 | Son | — | New Jersey |
| 54 | Mary Palkowski | 1 | Daughter | — | New Jersey |
| 55 | Harry Shubinoff | 43 | Head | Yes | Russia |
| 56 | Alexandra Shubinoff | 41 | Wife | Yes | Russia |
| 57 | Boris Shubinoff | 18 | Son | — | New Jersey |
| 58 | Katherine Shubinoff | 14 | Daughter | — | New Jersey |
| 59 | Andrew Shubinoff | 12 | Son | — | New Jersey |
| 60 | Michael Shubinoff | 11 | Son | — | New Jersey |
| 61 | Alex Shubinoff | 10 | Son | — | New Jersey |
| 62 | Joseph Goucek | 41 | Head | Yes | Poland |
| 63 | Stella Goucek | 38 | Wife | Yes | Poland |
| 64 | William Goucek | 10 | Son | — | New Jersey |
| 65 | Mary Goucek | 8 | Daughter | — | New Jersey |
| 66 | Michael Mulligan | 52 | Head | Laborer | New Jersey |
| 67 | Mary Mulligan | 50 | Wife | — | New Jersey |
| 68 | Kate Duncan Mulligan | 48 | Boarder | — | New Jersey |
| 69 | Antony Spruntulis | 51 | Head | Carpenter | New Jersey |
| 70 | Martha Spruntulis | 60 | Wife | — | New Jersey |
| 71 | Edith Spruntulis | 29 | Daughter | — | New Jersey |
| 72 | Alice Spruntulis | 27 | Daughter | — | New Jersey |
| 73 | Elizabeth Spruntulis | 25 | Daughter | — | New Jersey |
| 74 | Stanley Bernarowicz | 37 | Head | Yes | Russia |
| 75 | Mary Bernarowicz | 38 | Wife | Yes | Russia |
| 76 | Nicholas Shizanoff | 47 | Head | Yes | Russia |
| 77 | Vera Shizanoff | 47 | Wife | Yes | Russia |
| 78 | Anna Shizanoff | 15 | Daughter | — | New Jersey |
| 79 | Emma Shizanoff | 13 | Daughter | — | New Jersey |
| 80 | Catherine Shizanoff | 11 | Daughter | — | New Jersey |
| 81 | Helen Shizanoff | 3 | Daughter | — | New Jersey |
| 82 | Peter Parmicky | 48 | Head | Yes | Australia |
| 83 | Dora Parmicky | 35 | Wife | Yes | Australia |
| 84 | Joseph Parmicky | 10 | Son | — | New Jersey |
| 85 | William Parmicky | 8 | Son | — | New Jersey |
| 86 | Stanley Kowalski | 46 | Head | Yes | Poland |
| 87 | Sophie Kowalski | 43 | Wife | Yes | Poland |
| 88 | James Kowalski | 18 | Son | — | New Jersey |
| 89 | Frank Kowalski THIS PERSON | 17 | Son | — | New Jersey |
| 90 | Dorothy Kowalski | 15 | Daughter | — | New Jersey |
| 91 | Annie Kowalski | 14 | Daughter | — | New Jersey |
| 92 | Julia Kowalski | 11 | Daughter | — | New Jersey |
| 93 | John Kowalski | 9 | Son | — | New Jersey |
| 94 | Henry Kowalski | 4 | Son | — | New Jersey |
| 95 | Thomas Scalkowich | 42 | Head | Yes | Russia |
| 96 | Mary Scalkowich | 40 | Wife | Yes | Russia |
| 97 | Helen Scalkowich | 17 | Daughter | — | New Jersey |
| 98 | Peter Scalkowich | 15 | Son | — | New Jersey |
| 99 | Mary Scalkowich | 14 | Daughter | — | New Jersey |
| 100 | Alex Scalkowich | 12 | Son | — | New Jersey |
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)