RT
Ralph Thomas — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Philadelphia-County, Pennsylvania
Our Model Tree links this Ralph Thomas across the 1920, 1930 and 1940 US Censuses in Philadelphia-County, Pennsylvania (XGBoost, ~Confirmed) — first a head (b.~1895), then head of a 6-person household.
Age 45
b. ~1895
Male
Head
Born: Pennsylvania
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Philadelphia-County, Pennsylvania |
| Surname | Thomas |
| Given Name | Ralph B. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Philadelphia |
| 1935 Residence (County) | Philadelphia |
| Additional Details | |
| Occupation | Purchasing Agent |
| Industry | Paper Maker |
| Class of Worker | PW |
| Hours Worked | 43 |
| Income (1939) | 5000 |
| Highest Grade | Hs 2 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Purchasing Agent |
| Township / Ward | Philadelphia |
| Est. Birth Year | ~1895 |
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 1940 census.
| Name | Relation to head | Relative to Ralph | Age | Birth yr |
|---|---|---|---|---|
| Esther Thomas | Spouse | — | 45 | ~1895 |
| Richard Thomas | Son | — | 8 | ~1932 |
| Ralph Thomas | Head | — | 45 | ~1895 |
| Mary Thomas | Other | — | 70 | ~1870 |
| Ralph Thomas | Son | — | 15 | ~1925 |
| Barbara Thomas | Daughter | — | 10 | ~1930 |
Census Appearances
1920
Philadelphia, Pennsylvania
Other, age 25
Philadelphia, Pennsylvania · implied b. ~1895 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Ralph B. |
| Relationship to Head | Son-in-law |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Traffic Clerk Agent |
| Industry | Salt Manuf. |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Philadelphia, Pennsylvania
Head, age 35
Philadelphia, Pennsylvania · implied b. ~1895 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Ralph B. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Age at First Marriage | 25 |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Purchasing Agt |
| Industry | Paper Co |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 8,000 |
| Radio Set | R |
| Veteran | No |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Philadelphia-County, Pennsylvania
Head, age 45
Philadelphia-County, Pennsylvania · implied b. ~1895 — 6 household members
| Surname | Thomas |
| Given Name | Ralph B. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Philadelphia |
| 1935 Residence (County) | Philadelphia |
| Occupation | Purchasing Agent |
| Industry | Paper Maker |
| Class of Worker | PW |
| Hours Worked | 43 |
| Income (1939) | 5000 |
| Highest Grade | Hs 2 |
| 1935 Residence | Same place |
| 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 Ralph Thomas across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Ralph Thomas
Head · 1940 · age 45 · b. ~1895 · Pennsylvania
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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
40 people indexed on this census page (nara:1940:m-t0627-03701-00324)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Allen B. Citron | 18 | Son | Salesman | Pennsylvania |
| 42 | Diane E. Citron | 14 | Daughter | — | Pennsylvania |
| 43 | Philip Alperdt | 32 | Lodger | Lawyer | Pennsylvania |
| 44 | Harry W. Mandelblatt | 30 | Head | Attorney | Pennsylvania |
| 45 | Gazelle Mandelblatt | 27 | Wife | — | Pennsylvania |
| 46 | Howard Silver | 24 | Head | Lawyer | Pennsylvania |
| 47 | Charlotte M. Silver | 23 | Wife | — | New York |
| 48 | Ellen Sue Silver | 2 | Daughter | 0 | Pennsylvania |
| 49 | Martin M. Small | 33 | Head | Owner | Russia |
| 50 | Rose Small | 30 | Wife | Bookkeeper | New York |
| 51 | Edward Small | 7 | Son | — | Pennsylvania |
| 52 | Catherine Lashinski | 55 | Maid | Maid | Pennsylvania |
| 53 | Kate Scholder | 74 | Head | — | Pennsylvania |
| 54 | William R. Matchett | 45 | Son | Appraisal | Pennsylvania |
| 55 | Helen S. Matchett | 42 | Daughter-in-law | — | Pennsylvania |
| 56 | William W. Matchett | 15 | Son | — | Pennsylvania |
| 57 | Joseph Murphy | 59 | Head | President Of The Board Of Directors | Pennsylvania |
| 58 | Elsie Murphy | 58 | Wife | — | Pennsylvania |
| 59 | Elsie Murphy | 17 | Daughter | — | Pennsylvania |
| 60 | Harry Hayes | 30 | Son-in-law | Salesman | Pennsylvania |
| 61 | Margaret Hayes | 29 | Daughter | — | Pennsylvania |
| 62 | Mary Ann Hayes | 7 | Daughter | — | Pennsylvania |
| 63 | Edwin C. Broome | 66 | Head | Law | Rhode Island |
| 64 | Grace R. Broome | 52 | Wife | — | New York |
| 65 | John R. Broome | 14 | Son | — | Pennsylvania |
| 66 | Grace Beale | 30 | Maid | Maid | Virginia |
| 67 | Henry J. Gideon | 65 | Head | Director Of School Extension | Pennsylvania |
| 68 | Nina Marie Gideon | 40 | Wife | — | Minnesota |
| 69 | Mathilde Potts | 55 | Head | — | Pennsylvania |
| 70 | Audrey Potts | 20 | Daughter | — | Pennsylvania |
| 71 | N. Harper Stewart | 50 | Head | Secretary And Treasurer | New Jersey |
| 72 | Mary G. Stewart | 47 | Wife | — | Ohio |
| 73 | N. Harper Stewart | 13 | Son | — | Pennsylvania |
| 74 | Ralph B. Thomas THIS PERSON | 45 | Head | Purchasing Agent | Pennsylvania |
| 75 | Esther E. Thomas | 45 | Wife | — | Pennsylvania |
| 76 | Ralph E. Thomas | 15 | Son | — | Pennsylvania |
| 77 | Barbara J. Thomas | 10 | Daughter | — | Pennsylvania |
| 78 | Richard B. Thomas | 8 | Son | — | Pennsylvania |
| 79 | Mary B. Thomas | 70 | Mother | — | Pennsylvania |
| 80 | Jane S. Cope | 78 | Head | — | Ireland |
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)