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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 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a son (b.~1910), then head of a 8-person household.
Age 30
b. ~1910
Male
Son
Born: Illinois
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Hamilton |
| Given Name | Frank J |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Occupation | Lawyer |
| Industry | Self |
| Class of Worker | OA |
| Hours Worked | 40 |
| Income (1939) | 126 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same Place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Lawyer |
| Township / Ward | Chicago City |
| 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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Frank | Age | Birth yr |
|---|---|---|---|---|
| Edward Finnigan | Other | — | 72 | ~1868 |
| Frank Hamilton | Son | — | 30 | ~1910 |
| Mildred Hamilton | Spouse | — | 31 | ~1909 |
| Priscilla Hamilton | Daughter | — | 3 | ~1937 |
| Margaret Hamilton | Daughter | — | 32 | ~1908 |
| Patrick Hamilton | Head | — | 70 | ~1870 |
| Nancy Hamilton | Daughter | — | 5 | ~1935 |
| Margaret Hamilton | Spouse | — | 68 | ~1872 |
Census Appearances
1930
Cook, Illinois
Son, age 21
Cook, Illinois · implied b. ~1909 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hamilton |
| Given Name | Frank J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | student |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Son, age 30
Cook-County, Illinois · implied b. ~1910 — 8 household members
| Surname | Hamilton |
| Given Name | Frank J |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Occupation | Lawyer |
| Industry | Self |
| Class of Worker | OA |
| Hours Worked | 40 |
| Income (1939) | 126 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same Place |
| 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 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Frank Hamilton
Son · 1940 · age 30 · b. ~1910 · Illinois
★ You are viewing this record
Sibling
Priscilla Hamilton
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Nancy Hamilton
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Hamilton
Sibling · 1940 · age 32
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
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-t0627-01000-00375)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Carter Cook | 15 | Son | New Worker | Illinois |
| 42 | Alonzo O Lockwood | 61 | Head | Office Manager | California |
| 43 | Helen S Lockwood | 60 | Wife | — | Illinois |
| 44 | Anna S Blatchford | 66 | Sister in Law | Personal Maid | Illinois |
| 45 | Wesley B Q Cross | 64 | Head | — | English Canada |
| 46 | Ida K Cross | 64 | Wife | — | Illinois |
| 47 | Charles W Cross | 29 | Son | Adjuster | Illinois |
| 48 | John Freiwald | 53 | Head | Asst Supt | Illinois |
| 49 | Jeanette Freiwald | 56 | Wife | — | Illinois |
| 50 | Jeanette B Freiwald | 16 | Daughter | — | Illinois |
| 51 | Charles N Loucks | 85 | Head | — | Illinois |
| 52 | Mabel R Loucks | 51 | Daughter | Principal | Illinois |
| 53 | Mildred N Loucks | 49 | Daughter | Teacher | Illinois |
| 54 | Robin Filow | 57 | Head | Putty Mfg | Illinois |
| 55 | Linna Cone | 46 | Housekeeper | Housekeeper | Illinois |
| 56 | Henry G Fassbinder | 55 | Head | Pleater | Wisconsin |
| 57 | Johanna Fassbinder | 51 | Wife | Dressmaker | Norway |
| 58 | Catherine Fassbinder | 26 | Daughter | — | Minnesota |
| 59 | Gregory Fassbinder | 25 | Son | Laborer | Minnesota |
| 60 | John B Fassbinder | 24 | Son | Shipping Clerk | Minnesota |
| 61 | Arline Fassbinder | 24 | Wife | — | Illinois |
| 62 | Katherine Fassbinder | 52 | Sister | Dressmaker | Illinois |
| 63 | Anna V Nelson | 64 | Lodger | Cook | Illinois |
| 64 | Patrick Hamilton | 70 | Head | — | Illinois |
| 65 | Margaret A Hamilton | 68 | Wife | — | Illinois |
| 66 | Margaret V Hamilton | 32 | Daughter | Teacher | Illinois |
| 67 | Frank J Hamilton THIS PERSON | 30 | Son | Lawyer | Illinois |
| 68 | Mildred Hamilton | 31 | Wife | — | Illinois |
| 69 | Nancy Hamilton | 5 | Daughter | — | Illinois |
| 70 | Priscilla Hamilton | 3 | Daughter | — | Illinois |
| 71 | Edward Finnigan | 72 | Brother | — | Illinois |
| 72 | Steve Q Valko | 35 | Head | Janitor | Illinois |
| 73 | Adwanne Valko | 36 | Wife | — | Belgium |
| 74 | Alphonse Valko | 11 | Son | — | Illinois |
| 75 | Maline Valko | 6 | Daughter | — | Illinois |
| 76 | Diana Valko | 1 | Daughter | — | Illinois |
| 77 | John Gavora | 33 | Lodger | Service Man | Illinois |
| 78 | Emil H Ketter | 46 | Head | Butcher | Illinois |
| 79 | Emma Q Ketter | 54 | Wife | — | Illinois |
| 80 | Ralph Stockman | 47 | Head | Motor Man | Norway |
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)