RH
Robert Hamilton — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Philadelphia-County, Pennsylvania
Our Model Tree links this Robert Hamilton across the 1900, 1910, 1920, 1930 and 1940 US Censuses in Philadelphia-County, Pennsylvania (XGBoost, ~Confirmed) — first a head (b.~1859), then head of a 3-person household.
Age 81
b. ~1859
Male
Head
Born: Maryland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Philadelphia-County, Pennsylvania |
| Surname | Hamilton |
| Given Name | Robert C |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 81 |
| Marital Status | Married |
| Birthplace | Maryland |
| 1935 Residence (City) | Philadelphia |
| 1935 Residence (County) | Philadelphia |
| Additional Details | |
| Highest Grade | No 8 |
| 1935 Residence | Same House |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Township / Ward | Philadelphia |
| Est. Birth Year | ~1859 |
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 Robert | Age | Birth yr |
|---|---|---|---|---|
| Ester Hamilton | Daughter | — | 23 | ~1917 |
| Robert Hamilton | Head | — | 81 | ~1859 |
| Mildred Hamilton | Spouse | — | 79 | ~1861 |
Census Appearances
1900
Philadelphia, Pennsylvania
Head, age 41
Philadelphia, Pennsylvania · implied b. ~1859 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hamilton |
| Given Name | Robert |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 41 |
| Marital Status | Married |
| Birthplace | Maryland |
| Birth Month | Jan |
| Birth Year | 1859 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Carpenter |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1910
Philadelphia, Pennsylvania
Head, age 51
Philadelphia, Pennsylvania · implied b. ~1859 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hamilton |
| Given Name | Robert C. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | Maryland |
| Years Married | 25 |
| Father's Birthplace | Ireland (Pri) |
| Mother's Birthplace | Ireland (Pri) |
| Occupation | Carpenter |
| Industry | U.S. Mint |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1920
Philadelphia, Pennsylvania
Head, age 61
Philadelphia, Pennsylvania · implied b. ~1859 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hamilton |
| Given Name | Robert C. Sr. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 61 |
| Marital Status | Married |
| Birthplace | Maryland |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Carpenter |
| Industry | House |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | O |
| Home Free/Mortgaged | M |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1930
Philadelphia, Pennsylvania
Head, age 71
Philadelphia, Pennsylvania · implied b. ~1859 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hamilton |
| Given Name | Robert |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 71 |
| Marital Status | Married |
| Birthplace | Maryland |
| Age at First Marriage | 25 |
| Father's Birthplace | Northern Ireland |
| Mother's Birthplace | Northern Ireland |
| Occupation | Watchman |
| Industry | Gas Station |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 4500 |
| Veteran | No |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Philadelphia-County, Pennsylvania
Head, age 81
Philadelphia-County, Pennsylvania · implied b. ~1859 — 3 household members
| Surname | Hamilton |
| Given Name | Robert C |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 81 |
| Marital Status | Married |
| Birthplace | Maryland |
| 1935 Residence (City) | Philadelphia |
| 1935 Residence (County) | Philadelphia |
| Highest Grade | No 8 |
| 1935 Residence | Same House |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
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 5 US Census years (1900, 1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Robert Hamilton
Head · 1940 · age 81 · b. ~1859 · Pennsylvania
★ 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 — Philadelphia-County, Pennsylvania
Open full size
1940 US Federal Census — Philadelphia-County, Pennsylvania
Page Contents
25 people indexed on this census page (nara:1940:m-t0627-03724-00133)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Lilian M Davidson | 30 | Daughter-in-law | — | Pennsylvania |
| 42 | Dolores A Davidson | 5 | Granddaughter | — | Pennsylvania |
| 43 | Thorvalda Rasmussen | 58 | Head | Carpenter + Builder | Denmark |
| 44 | Karen M Rasmussen | 55 | Wife | — | Denmark |
| 45 | John F Ruby | 57 | Head | Auto Mechanic | Pennsylvania |
| 46 | Jennie Ruby | 50 | Wife | — | Pennsylvania |
| 47 | Harold R Ruby | 25 | Son | Office Clerk | Pennsylvania |
| 48 | William E Rodgers | 55 | Head | Transport-Ation Clerk | Pennsylvania |
| 49 | Anna M Rodgers | 49 | Wife | — | Pennsylvania |
| 50 | Louise A Rodgers | 26 | Daughter | Office Clerk | Pennsylvania |
| 51 | Robert C Hamilton THIS PERSON | 81 | Head | — | Maryland |
| 52 | Mildred K Hamilton | 79 | Wife | — | Pennsylvania |
| 53 | Ester Hamilton | 23 | Daughter | Bookkeeper | Pennsylvania |
| 54 | Vincent P Scullin | 30 | Head | Driver Salesman | Pennsylvania |
| 55 | Anna A Scullin | 25 | Wife | Presser | Pennsylvania |
| 56 | Richard V Scullin | 4 | Son | — | Pennsylvania |
| 57 | Julius G Christensen | 69 | Head | Carpenter | Denmark |
| 58 | Agnes M Christensen | 61 | Wife | — | Denmark |
| 59 | Walter L Christensen | 34 | Son | Shipping Clerk | Pennsylvania |
| 60 | Anna D Christensen | 31 | Daughter-in-law | Bookkeeper | Pennsylvania |
| 61 | Marie J Bookmyer | 33 | Daughter | Stenographer | Pennsylvania |
| 62 | John E Chester | 37 | Head | — | Pennsylvania |
| 63 | Sophie A Chester | 39 | Wife | Fore Lady | Pennsylvania |
| 64 | John E, Jr Chester | 11 | Son | — | Pennsylvania |
| 65 | Hinesine Jorgensen | 64 | Mother-in-law | — | Denmark |
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)