RH
Robert Hamilton — 1930 US Census Record
Model Tree available1930 United States Federal Census · Cook, Illinois
Our Model Tree links this Robert Hamilton across the 1910, 1920 and 1930 US Censuses in Cook, Illinois (XGBoost, ~Confirmed), with identified parents Bernice & Ray — first a son (b.~1908), then head of a 4-person household.
Age 22
b. ~1908
Male
Son
Born: Illinois
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Cook, Illinois |
| Surname | Hamilton |
| Given Name | Robert R |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Additional Details | |
| Occupation | Tool maker |
| Industry | Telephone Mfg |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Tool Maker |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1908 |
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.
4 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Guy Hamilton | Head | — | 54 | ~1876 |
| Oscar Hamilton | Son | — | 25 | ~1905 |
| Robert Hamilton | Son | — | 22 | ~1908 |
| Bernice Hamilton | Spouse | — | 54 | ~1876 |
Census Appearances
1910
Cook, Illinois
Son, age 2
Cook, Illinois · implied b. ~1908 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hamilton |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1920
Cook, Illinois
Son, age 12
Cook, Illinois · implied b. ~1908 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hamilton |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Cook, Illinois
Son, age 22
Cook, Illinois · implied b. ~1908 — 4 household members
| Surname | Hamilton |
| Given Name | Robert R |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | Tool maker |
| Industry | Telephone Mfg |
| Class of Worker | W |
| Can Read/Write | Yes |
| 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 Robert Hamilton across 3 US Census years (1910, 1920 and 1930) in Cook, Illinois, using XGBoost record linkage. Identified parents: mother Bernice Hamilton (~0.92 confidence) and father Ray Hamilton (~0.92 confidence) and father Guy Hamilton (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Bernice Hamilton
b. ~1875
Source mother
● Household
· direct · ~0.92
Father
Ray Hamilton
b. ~1876
Source father
● Household
· direct · ~0.92
Father
Guy Hamilton
b. ~1876
Source father
● Household
· direct · ~0.92
This person
Anchor record
Robert Hamilton
Son · 1930 · age 22 · b. ~1908 · Illinois
★ You are viewing this record
Sibling
Oscar Hamilton
Sibling · 1930 · age 25
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 — Cook, Illinois
Open full size
1930 US Federal Census — Cook, Illinois
Page Contents
50 people indexed on this census page (ia:1930:illinoiscensus00reel470:0395)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Nellie M Benson | 41 | Sister | Bookkeeper | Illinois |
| 52 | Milton E Richards | 24 | Niece | Stenographer | Illinois |
| 53 | Arthur L Mansk | 33 | Head | Electrician | Illinois |
| 54 | Minnie M Mansk | 31 | Wife | — | Minnesota |
| 55 | Roger T Mansk | 9 | Son | — | Illinois |
| 56 | Ruth A Mansk | 8 | Daughter | — | Illinois |
| 57 | Robert A Mansk | 4 | Son | — | Illinois |
| 58 | Grace D Mansk | 1 | Daughter | — | Illinois |
| 59 | Guy Hamilton | 54 | Head | Drill Press Oper | Illinois |
| 60 | Bernice Hamilton | 54 | Wife | — | Illinois |
| 61 | Oscar W Hamilton | 25 | Son | Accountant | Illinois |
| 62 | Robert R Hamilton THIS PERSON | 22 | Son | Tool Maker | Illinois |
| 63 | Harry Christophersen | 30 | Head | Credit Man | Illinois |
| 64 | Lillian E Christophersen | 27 | Wife | — | Illinois |
| 65 | Mary A Christophersen | 4 | Daughter | — | Illinois |
| 66 | Mary C Anderson | 66 | Mother-in-law | — | Denmark |
| 67 | Herbert S Hay | 32 | Head | Collector | Illinois |
| 68 | Isabelle M Hay | 34 | Wife | — | Wisconsin |
| 69 | Herbert L Hay | 11 | Son | — | Michigan |
| 70 | Robert Hay | 4 | Son | — | Illinois |
| 71 | Sarah E Kummer | 30 | Sister-in-law | Saleslady | Wisconsin |
| 72 | Frank E Parise | 44 | Head | — | Italy |
| 73 | Minnie Parise | 46 | Wife | — | Italy |
| 74 | Theresa A Parise | 27 | Daughter | Machine Oper | Illinois |
| 75 | Charlotte L Parise | 26 | Daughter | Tracer | Illinois |
| 76 | Anna E Parise | 21 | Daughter | Teacher | Illinois |
| 77 | Bernice C Parise | 11 | Daughter | — | Illinois |
| 78 | James R Parise | 12 | Son | — | Illinois |
| 79 | Gloria J Parise | 4 | Daughter | — | Illinois |
| 80 | Betty Grosso | 5 | Niece | — | Illinois |
| 81 | Josephine Nolan | 33 | Head | — | Illinois |
| 82 | Marcella Nolan | 14 | Daughter | — | Illinois |
| 83 | Charlotte Nolan | 10 | Daughter | — | Illinois |
| 84 | Josephine Nolan | 17 | Daughter | — | Illinois |
| 85 | John Nolan | 10 | Son | — | Illinois |
| 86 | Michael J Kutza | 38 | Head | Physician & Surgeon | Illinois |
| 87 | Theresa V Kutza | 33 | Wife | Physician & Surgeon | Illinois |
| 88 | Peter J Kutza | 4 | Son | — | Illinois |
| 89 | Rosie F Gentile | 56 | Mother-in-law | — | Italy |
| 90 | Joseph Acree | 64 | Head | — | England |
| 91 | Sarah Acree | 63 | Wife | — | England |
| 92 | Chester J Acree | 41 | Son | Inspector | England |
| 93 | George E Acree | 30 | Son | Chauffeur | Illinois |
| 94 | Lauritz Jensen | 49 | Head | Hostler | Denmark |
| 95 | Anna K Jensen | 53 | Wife | — | Denmark |
| 96 | Olaf J Dykier | 27 | Lodger | Carpenter | Denmark |
| 97 | William Dahl | 37 | Head | Cutter | Illinois |
| 98 | Loretta Dahl | 37 | Wife | — | Illinois |
| 99 | William Dahl | 1 | Son | — | Illinois |
| 100 | Hedvig Amundson | 68 | Mother | — | Norway |
Pedigree Summary
Robert + 1 sibling
Gen 1 · 3 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)