FK
Frank Kowalski — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Milwaukee, Wisconsin
Our Model Tree links this Frank Kowalski across the 1920 and 1930 US Censuses in Milwaukee, Wisconsin (XGBoost, ~Confirmed) — first a son (b.~1918), then head of a 11-person household.
Age 2
b. ~1918
Male
Son
Born: Wisconsin
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | Milwaukee, Wisconsin |
| Surname | Kowalski |
| Given Name | Frank |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| Father's Birthplace | Wisconsin |
| Mother's Birthplace | Wisconsin |
| Additional Details | |
| Can Read | No |
| Can Write | No |
| Speaks English | No |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
| Township / Ward | Milwaukee |
| Est. Birth Year | ~1918 |
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.
11 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to Frank | Age | Birth yr |
|---|---|---|---|---|
| Raymond Kowalski | Son | — | 10 | ~1910 |
| Leo Kowalski | Son | — | 12 | ~1908 |
| Alice Kowalski | Daughter | — | 8 | ~1912 |
| Frank Kowalski | Son | — | 2 | ~1918 |
| Robert Kowalski | Son | — | 4 | ~1916 |
| Anna Kowalski | Spouse | — | 40 | ~1880 |
| Frank Kowalski | Son | — | 18 | ~1902 |
| Edward Kowalski | Son | — | 14 | ~1906 |
| Frank Kowalski | Head | — | 42 | ~1878 |
| Joseph Kowalski | Son | — | 16 | ~1904 |
| George Kowalski | Son | — | 6 | ~1914 |
Census Appearances
1920
Milwaukee, Wisconsin
Son, age 2
Milwaukee, Wisconsin · implied b. ~1918 — 11 household members
| Surname | Kowalski |
| Given Name | Frank |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| Father's Birthplace | Wisconsin |
| Mother's Birthplace | Wisconsin |
| Can Read | No |
| Can Write | No |
| Speaks English | No |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
1930
Milwaukee, Wisconsin
Son, age 12
Milwaukee, Wisconsin · implied b. ~1918 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Kowalsky |
| Given Name | Frank |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| Father's Birthplace | Wisconsin |
| Mother's Birthplace | Wisconsin |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
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 Milwaukee, Wisconsin, using XGBoost record linkage.
Show:
This person
Anchor record
Frank Kowalski
Son · 1920 · age 2 · b. ~1918 · Wisconsin
★ You are viewing this record
Sibling
Robert Kowalski
Sibling · 1920 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edward Kowalski
Sibling · 1920 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Raymond Kowalski
Sibling · 1920 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alice Kowalski
Sibling · 1920 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
George Kowalski
Sibling · 1920 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Kowalski
Sibling · 1920 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Frank Kowalski
Sibling · 1920 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Leo Kowalski
Sibling · 1920 · age 12
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
1920 US Federal Census — Milwaukee, Wisconsin
Open full size
1920 US Federal Census — Milwaukee, Wisconsin
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu2002unit:0322)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | John Kowalski | 49 | Head | Blacksmith | Wisconsin |
| 52 | Mary Kowalski | 49 | Wife | — | Wisconsin |
| 53 | Clara Kowalski | 25 | Daughter | — | Wisconsin |
| 54 | Edward Kowalski | 20 | Son | Laborer | Wisconsin |
| 55 | John Kowalski | 18 | Son | — | Wisconsin |
| 56 | Raymond Kowalski | 15 | Son | — | Wisconsin |
| 57 | Arthur Kowalski | 11 | Son | — | Wisconsin |
| 58 | Alice Kowalski | 9 | Daughter | — | Wisconsin |
| 59 | Harry Kowalski | 7 | Son | — | Wisconsin |
| 60 | George Kowalski | 5 | Son | — | Wisconsin |
| 61 | Robert Kowalski | 2 | Son | — | Wisconsin |
| 62 | Frank Kowalski | 0 | Son | — | Wisconsin |
| 63 | Joseph Kowalski | 45 | Head | Inspector | Germany |
| 64 | Anna Kowalski | 43 | Wife | — | Wisconsin |
| 65 | Joseph Kowalski | 18 | Son | — | Wisconsin |
| 66 | Helen Kowalski | 16 | Daughter | — | Wisconsin |
| 67 | Edward Kowalski | 14 | Son | — | Wisconsin |
| 68 | Frank Kowalski | 12 | Son | — | Wisconsin |
| 69 | Leo Kowalski | 10 | Son | — | Wisconsin |
| 70 | Agnes Kowalski | 8 | Daughter | — | Wisconsin |
| 71 | Martha Kowalski | 6 | Daughter | — | Wisconsin |
| 72 | Clara Kowalski | 4 | Daughter | — | Wisconsin |
| 73 | Gertrude Kowalski | 2 | Daughter | — | Wisconsin |
| 74 | John Kowalski | 38 | Head | Laborer | Wisconsin |
| 75 | Mary Kowalski | 36 | Wife | Laundress | Wisconsin |
| 76 | John Kowalski | 14 | Son | Machinist | Wisconsin |
| 77 | Frank Kowalski | 12 | Son | — | Wisconsin |
| 78 | Joseph Kowalski | 10 | Son | — | Wisconsin |
| 79 | Edward Kowalski | 8 | Son | — | Wisconsin |
| 80 | Leo Kowalski | 6 | Son | — | Wisconsin |
| 81 | Raymond Kowalski | 4 | Son | — | Wisconsin |
| 82 | Alice Kowalski | 2 | Daughter | — | Wisconsin |
| 83 | George Kowalski | 0 | Son | — | Wisconsin |
| 84 | Frank Kowalski | 42 | Head | Plumber | Wisconsin |
| 85 | Anna Kowalski | 40 | Wife | — | Wisconsin |
| 86 | Frank Kowalski | 18 | Son | Trimmer | Wisconsin |
| 87 | Joseph Kowalski | 16 | Son | Laborer | Wisconsin |
| 88 | Edward Kowalski | 14 | Son | — | Wisconsin |
| 89 | Leo Kowalski | 12 | Son | — | Wisconsin |
| 90 | Raymond Kowalski | 10 | Son | — | Wisconsin |
| 91 | Alice Kowalski | 8 | Daughter | — | Wisconsin |
| 92 | George Kowalski | 6 | Son | — | Wisconsin |
| 93 | Robert Kowalski | 4 | Son | — | Wisconsin |
| 94 | Frank Kowalski THIS PERSON | 2 | Son | — | Wisconsin |
| 95 | John Kowalski | 45 | Head | Carpenter | Wisconsin |
| 96 | Mary Kowalski | 43 | Wife | Laborer | Wisconsin |
| 97 | John Kowalski | 18 | Son | Laborer | Wisconsin |
| 98 | Frank Kowalski | 16 | Son | Clerk | Wisconsin |
| 99 | Joseph Kowalski | 14 | Son | Moulder | Wisconsin |
| 100 | Edward Kowalski | 12 | Son | — | Wisconsin |
Related Census Records
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1920 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)