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Robert Hamilton — 1930 US Census Record
Model Tree available1930 United States Federal Census · Allegheny, Pennsylvania
Our Model Tree links this Robert Hamilton across the 1910, 1920 and 1930 US Censuses in Allegheny, Pennsylvania (XGBoost, ~Confirmed), with identified parents Samuel & Howard — first a son (b.~1906), then head of a 3-person household.
Age 24
b. ~1906
Male
Son
Born: Pennsylvania
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Allegheny, Pennsylvania |
| Surname | Hamilton |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Additional Details | |
| Occupation | Checker |
| Industry | Railway Co. |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Checker |
| Township / Ward | Pittsburgh City |
| Est. Birth Year | ~1906 |
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 1930 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| George Grove | Head | — | 43 | ~1887 |
| Clara Grove | Other | — | 40 | ~1890 |
| Robert Hamilton | Son | — | 24 | ~1906 |
Census Appearances
1910
Allegheny, Pennsylvania
Son, age 5
Allegheny, Pennsylvania · implied b. ~1905 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hamilton |
| Given Name | Robert A |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | New York |
| Mother's Birthplace | Pennsylvania |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1920
Allegheny, Pennsylvania
Son, age 14
Allegheny, Pennsylvania · implied b. ~1906 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hamilton |
| Given Name | Robert |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Allegheny, Pennsylvania
Son, age 24
Allegheny, Pennsylvania · implied b. ~1906 — 3 household members
| Surname | Hamilton |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Checker |
| Industry | Railway Co. |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
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 Allegheny, Pennsylvania, using XGBoost record linkage. Identified parents: father Samuel Hamilton (~0.92 confidence) and father Howard Hamilton (~0.92 confidence) and mother Lydia Hamilton (~0.92 confidence) and mother Clara Hamilton (~0.92 confidence) and father George Grove (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Samuel Hamilton
b. ~1880
Source father
● Household
· direct · ~0.92
Father
Howard Hamilton
b. ~1880
Source father
● Household
· direct · ~0.92
Mother
Lydia Hamilton
b. ~1881
Source mother
● Household
· direct · ~0.92
Mother
Clara Hamilton
b. ~1886
Source mother
● Household
· direct · ~0.92
Father
George Grove
b. ~1887
Source father
● Household
· direct · ~0.92
This person
Anchor record
Robert Hamilton
Son · 1930 · age 24 · b. ~1906 · Pennsylvania
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Allegheny, Pennsylvania
Open full size
1930 US Federal Census — Allegheny, Pennsylvania
Page Contents
25 people indexed on this census page (ia:1930:fifteenthcensus00reel1974:0102)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | William Bauman | 8 | Son | None | Pennsylvania |
| 52 | Mary Bauman | 26 | Sister-in-law | Stenographer | Pennsylvania |
| 53 | Sidney Davis | 51 | Head | Carpenter | Michigan |
| 54 | Phoebe Davis | 37 | Wife-H | None | Pennsylvania |
| 55 | Sidney Jr. Davis | 24 | Son | None | Pennsylvania |
| 56 | Harry Roberts | 22 | Step son | Carpenter | Michigan |
| 57 | William Matthews | 16 | Step son | Carpenter | Pennsylvania |
| 58 | Mildred Matthews | 12 | Step dau | None | Pennsylvania |
| 59 | James Matthews | 9 | Step son | None | Pennsylvania |
| 60 | Thomas Matthews | 7 | Step son | None | Pennsylvania |
| 61 | Marie Bremer | 70 | Head-H | None | Germany |
| 62 | William H. Bremer | 42 | Son | Printer | Pennsylvania |
| 63 | William L. Bremer | 12 | Son | None | Pennsylvania |
| 64 | Edward Ring | 50 | Head | Painter | Pennsylvania |
| 65 | Dora Ring | 47 | Wife-H | None | Pennsylvania |
| 66 | Charles O'Connell | 29 | Head | Draftsman | Pennsylvania |
| 67 | Mildred O'Connell | 30 | Wife-H | None | Pennsylvania |
| 68 | Mildred O'Connell | 6 | Daughter | None | Pennsylvania |
| 69 | William Sloan | 68 | Head | Blacksmith | Pennsylvania |
| 70 | Margaret Sloan | 42 | Wife-H | None | Pennsylvania |
| 71 | Margaret Sloan | 13 | Daughter | None | Pennsylvania |
| 72 | Nora Kelly | 48 | Boarder | Seamstress | Pennsylvania |
| 73 | George W. Grove | 43 | Head | Mining Engineer | Pennsylvania |
| 74 | Clara Grove | 40 | Wife-H | None | Pennsylvania |
| 75 | Robert Hamilton THIS PERSON | 24 | Son | Checker | Pennsylvania |
Pedigree Summary
Robert
Gen 1 · 5 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)