RH
Robert Hamilton — 1930 US Census Record
Model Tree available1930 United States Federal Census · Philadelphia, Pennsylvania
Our Model Tree links this Robert Hamilton across the 1910, 1920 and 1930 US Censuses in Philadelphia, Pennsylvania (XGBoost, ~Confirmed), with identified parents Margaret & John — first a son (b.~1908), then head of a 6-person household.
Age 22
b. ~1908
Male
Son
Born: Pennsylvania
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Philadelphia, Pennsylvania |
| Surname | Hamilton |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Additional Details | |
| Occupation | Laborer |
| Industry | Factory |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Laborer |
| Township / Ward | Philadelphia 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.
6 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Grace Hamilton | Daughter | — | 11 | ~1919 |
| Anita Hamilton | Daughter | — | 10 | ~1920 |
| Margaret Hamilton | Head | — | 52 | ~1878 |
| Daniel Hamilton | Son | — | 19 | ~1911 |
| Robert Hamilton | Son | — | 22 | ~1908 |
| Hugh Hamilton | Son | — | 15 | ~1915 |
Census Appearances
1910
Philadelphia, Pennsylvania
Son, age 1
Philadelphia, Pennsylvania · implied b. ~1909 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hamilton |
| Given Name | Robert M. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1920
Philadelphia, Pennsylvania
Son, age 12
Philadelphia, Pennsylvania · 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 | 12 |
| 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
Philadelphia, Pennsylvania
Son, age 22
Philadelphia, Pennsylvania · implied b. ~1908 — 6 household members
| Surname | Hamilton |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Laborer |
| Industry | Factory |
| 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 Philadelphia, Pennsylvania, using XGBoost record linkage. Identified parents: mother Margaret Hamilton (~0.92 confidence) and father John Hamilton (~0.92 confidence) and father Robert Hamilton (~0.92 confidence) and mother Carrie Hamilton (~0.92 confidence) and mother Margaret Hamilton (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Margaret Hamilton
b. ~1878
Source mother
● Household
· direct · ~0.92
Father
John Hamilton
b. ~1882
Source father
● Household
· direct · ~0.92
Father
Robert Hamilton
b. ~1885
Source father
● Household
· direct · ~0.92
Mother
Carrie Hamilton
b. ~1887
Source mother
● Household
· direct · ~0.92
Mother
Margaret Hamilton
b. ~1888
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Hamilton
Son · 1930 · age 22 · b. ~1908 · Pennsylvania
★ You are viewing this record
Sibling
Grace Hamilton
Sibling · 1930 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Hugh Hamilton
Sibling · 1930 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Anita Hamilton
Sibling · 1930 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Daniel Hamilton
Sibling · 1930 · age 19
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 — Philadelphia, Pennsylvania
Open full size
1930 US Federal Census — Philadelphia, Pennsylvania
Page Contents
50 people indexed on this census page (ia:1930:fifteenthcensus00reel2095:1064)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Christian Harrison | 50 | Head | Laborer | Maryland |
| 2 | Daisy Harrison | 30 | Wife-H | — | Maryland |
| 3 | Bertha Harrison | 22 | Daughter | — | Maryland |
| 4 | Samuel Harrison | 26 | Son | Laborer | Maryland |
| 5 | Clarence Harrison | 16 | Son | — | Maryland |
| 6 | Evelyn Harrison | 14 | Daughter | — | Maryland |
| 7 | Fred Harrison | 11 | Son | — | Maryland |
| 8 | Samuel Jones | 40 | Head | Laborer | Pennsylvania |
| 9 | Mary Jones | 30 | Wife-H | — | Pennsylvania |
| 10 | John Jones | 15 | Son | — | Pennsylvania |
| 11 | Mary Jones | 14 | Daughter | — | Pennsylvania |
| 12 | Florence Jones | 12 | Daughter | — | Pennsylvania |
| 13 | George Kellett | 30 | Head | — | Pennsylvania |
| 14 | Margaret Kellett | 27 | Wife | — | Pennsylvania |
| 15 | George Kellett | 2 | Son | — | Pennsylvania |
| 16 | Margaret Kellett | 0 | Daughter | — | Pennsylvania |
| 17 | William Mccafferty | 31 | Head | — | Pennsylvania |
| 18 | Mary Mccafferty | 38 | Wife | — | Pennsylvania |
| 19 | Helen Mccafferty | 20 | Daughter | Operator | Pennsylvania |
| 20 | Margaret Mccafferty | 17 | Daughter | Operator | Pennsylvania |
| 21 | Mary Mccafferty | 14 | Daughter | — | Pennsylvania |
| 22 | Rose Mccafferty | 13 | Daughter | — | Pennsylvania |
| 23 | Catherine Mccafferty | 10 | Daughter | — | Pennsylvania |
| 24 | Francis Mccafferty | 8 | Daughter | — | Pennsylvania |
| 25 | Theresa Mccafferty | 5 | Daughter | — | Pennsylvania |
| 26 | Agnes Mccafferty | 2 | Daughter | — | Pennsylvania |
| 27 | Joseph C. Mcmullen | 27 | Head | Trucker | Irish Free State |
| 28 | Marie Mcmullen | 27 | Wife-H | — | Pennsylvania |
| 29 | Joseph Mcmullen | 4 | Son | — | Pennsylvania |
| 30 | Francis Mcmullen | 2 | Daughter | — | Pennsylvania |
| 31 | James Mcmullen | 1 | Son | — | Pennsylvania |
| 32 | Margaret Hamilton | 52 | Head | — | Pennsylvania |
| 33 | Robert Hamilton THIS PERSON | 22 | Son | Laborer | Pennsylvania |
| 34 | Daniel Hamilton | 19 | Son | — | Pennsylvania |
| 35 | Hugh Hamilton | 15 | Son | — | Pennsylvania |
| 36 | Grace Hamilton | 11 | Daughter | — | Pennsylvania |
| 37 | Anita Hamilton | 10 | Daughter | — | Pennsylvania |
| 38 | Belle Mcken | 65 | Head | Cleaner | Pennsylvania |
| 39 | James Weston | 40 | Head | Laborer | Pennsylvania |
| 40 | Edna Weston | 35 | Wife-H | — | Pennsylvania |
| 41 | Leon Brooks | 40 | Head | Carpenter | Maryland |
| 42 | Annie Brooks | 40 | Wife-H | Day Work | Maryland |
| 43 | Elnora Brooks | 16 | Daughter | — | Maryland |
| 44 | Agnes Brooks | 15 | Daughter | — | Maryland |
| 45 | Margaret Brooks | 12 | Daughter | — | Maryland |
| 46 | Rachel Brooks | 11 | Daughter | — | Maryland |
| 47 | Gladys Brooks | 8 | Daughter | — | Maryland |
| 48 | Rosalie Brooks | 6 | Daughter | — | Maryland |
| 49 | Henrietta Brooks | 4 | Daughter | — | Maryland |
| 50 | Florence Brooks | 2 | Daughter | — | Maryland |
Pedigree Summary
Robert + 4 siblings
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)