FH
Frank Hamilton — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Frank Hamilton across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a head (b.~1889), then head of a 3-person household.
Age 51
b. ~1889
Male
Head
Born: Illinois
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Hamilton |
| Given Name | Frank A. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Elmwood Park |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Occupation | Secretary |
| Industry | Improvement of Clinton Valley |
| Class of Worker | GW |
| Hours Worked | 306 |
| Income (1939) | 236 |
| Highest Grade | C 5 |
| 1935 Residence | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Secretary |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1889 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Frank | Age | Birth yr |
|---|---|---|---|---|
| Le Hamilton | Son | — | 19 | ~1921 |
| Frank Hamilton | Head | — | 51 | ~1889 |
| Mary Hamilton | Spouse | — | 46 | ~1894 |
Census Appearances
1920
Cook, Illinois
Head, age 31
Cook, Illinois · implied b. ~1889 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hamilton |
| Given Name | Frank |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Illinois |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Occupation | accountant |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | German |
| Home Owned/Rented | R |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Cook, Illinois
Head, age 41
Cook, Illinois · implied b. ~1889 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hamilton |
| Given Name | Frank D. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 41 |
| Marital Status | Married |
| Birthplace | Illinois |
| Age at First Marriage | 31 |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Occupation | Sales Manager |
| Industry | Paper Shop |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 3,900 |
| Radio Set | R |
| Veteran | No |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Head, age 51
Cook-County, Illinois · implied b. ~1889 — 3 household members
| Surname | Hamilton |
| Given Name | Frank A. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Elmwood Park |
| 1935 Residence (County) | Cook |
| Occupation | Secretary |
| Industry | Improvement of Clinton Valley |
| Class of Worker | GW |
| Hours Worked | 306 |
| Income (1939) | 236 |
| Highest Grade | C 5 |
| 1935 Residence | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
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 Hamilton across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Frank Hamilton
Head · 1940 · age 51 · b. ~1889 · Illinois
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Cook-County, Illinois
Open full size
1940 US Federal Census — Cook-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00988-00593)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | David J. Gould | 12 | Son | — | Illinois |
| 42 | Clarence Anderson | 45 | Head | Waiter | Michigan |
| 43 | Maude Anderson | 37 | Wife | — | Michigan |
| 44 | Lillian Anderson | 16 | Daughter | New Worker | Illinois |
| 45 | — | None | — | — | — |
| 46 | Mary Krzyko | 59 | Head | — | Poland |
| 47 | Steven Krzyko | 35 | Son | News Boy | Illinois |
| 48 | Leon Krzyko | 33 | Son | Barkeeper | Illinois |
| 49 | Stanley Krzyko | 24 | Son | New Worker | Illinois |
| 50 | Irene Krzyko | 18 | Daughter | — | Illinois |
| 51 | Zovok Mitchel Krzyko | 25 | Lodger | Barkeeper | Illinois |
| 52 | Mary Pacholski | 50 | Head | Dress Making Operator | Illinois |
| 53 | Emily M. Pacholski | 23 | Daughter | — | Illinois |
| 54 | Frank A. Hamilton THIS PERSON | 51 | Head | Secretary | Illinois |
| 55 | Mary Hamilton | 46 | Wife | — | Illinois |
| 56 | Le Roy Hamilton | 19 | Son | Handiman | Illinois |
| 57 | Helen Paskozim | 61 | Head | — | Lithuania |
| 58 | Ann T. Paskozim | 27 | Daughter | Time Keeper | Illinois |
| 59 | Walter C. Paskozim | 23 | Son | Assembler | Illinois |
| 60 | John S. Jankowski | 41 | Head | Truck Driver | Germany |
| 61 | Harriet T. Jankowski | 28 | Wife | Silk Winder | Illinois |
| 62 | Geraldine F. Jankowski | 6 | Daughter | — | Illinois |
| 63 | Frank Krajcki | 64 | Head | Splitter | Illinois |
| 64 | Frances B. Krajcki | 24 | Daughter | — | Illinois |
| 65 | John L. Krajcki | 22 | Son | Polisher | Illinois |
| 66 | Edward Krajcki | 20 | Son | Buffy Polisher | Illinois |
| 67 | Helen Komosinski | 68 | Head | — | Poland |
| 68 | Lillian Komosinski | 42 | Daughter | Clerk | Illinois |
| 69 | Irene Kowalczyk | 32 | Head | — | Illinois |
| 70 | Theresa V. Kowalczyk | 11 | Daughter | — | Illinois |
| 71 | Patrick F. Kowalczyk | 3 | Son | — | Illinois |
| 72 | Ronald T. Kowalczyk | 2 | Son | — | Illinois |
| 73 | Clarence Komas | 32 | Head | Punch Press Operator | Illinois |
| 74 | Estell Komas | 27 | Wife | — | Illinois |
| 75 | Patricia Komas | 0 | Daughter | — | Illinois |
| 76 | John Szypulski | 36 | Lodger | Pressman | Illinois |
| 77 | Casimir Szypulski | 19 | Lodger | Pressman Apprentice | Illinois |
| 78 | Chester Komosinski | 31 | Head | Press Operator | Illinois |
| 79 | Julia Komosinski | 22 | Wife | Mender | Michigan |
| 80 | Frank Rychlik | 48 | Head | Laborer | Poland |
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)