RT
Ralph Thompson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Delaware-County, Pennsylvania
Our Model Tree links this Ralph Thompson across the 1920, 1930 and 1940 US Censuses in Delaware-County, Pennsylvania (XGBoost, ~Confirmed) — first a head (b.~1893), then head of a 4-person household.
Age 47
b. ~1893
Male
Head
Born: Delaware
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Delaware-County, Pennsylvania |
| Surname | Thompson |
| Given Name | Ralph S |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 47 |
| Marital Status | Married |
| Birthplace | Delaware |
| 1935 Residence (City) | Chester |
| 1935 Residence (County) | Delaware |
| Additional Details | |
| Occupation | Laborer/Foreman |
| Industry | Automobile Construction |
| Class of Worker | PW |
| Hours Worked | 56 |
| Income (1939) | 1600 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Delaware |
| Birth Country | United States |
| Birthplace (normalized) | delaware |
| Occupation | Laborer/Foreman |
| Township / Ward | Chester |
| Est. Birth Year | ~1893 |
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 1940 census.
| Name | Relation to head | Relative to Ralph | Age | Birth yr |
|---|---|---|---|---|
| Fannie Thompson | Spouse | — | 57 | ~1883 |
| Wally Dish | Other | — | 31 | ~1909 |
| Pearl Dish | Daughter | — | 32 | ~1908 |
| Ralph Thompson | Head | — | 47 | ~1893 |
Census Appearances
1920
Delaware, Pennsylvania
Head, age 26
Delaware, Pennsylvania · implied b. ~1894 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Ralph |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Married |
| Birthplace | Delaware |
| Father's Birthplace | Delaware |
| Mother's Birthplace | Delaware |
| Occupation | Chauffeur |
| Industry | Electric Co |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | R |
| Birth State | Delaware |
| Birth Country | United States |
| Birthplace (normalized) | delaware |
1930
Delaware, Pennsylvania
Head, age 37
Delaware, Pennsylvania · implied b. ~1893 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Ralph |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Delaware |
| Father's Birthplace | Unknown |
| Mother's Birthplace | Unknown |
| Occupation | Mechanic |
| Industry | Garage |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 35 |
| Radio Set | R |
| Birth State | Delaware |
| Birth Country | United States |
| Birthplace (normalized) | delaware |
1940
Delaware-County, Pennsylvania
Head, age 47
Delaware-County, Pennsylvania · implied b. ~1893 — 4 household members
| Surname | Thompson |
| Given Name | Ralph S |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 47 |
| Marital Status | Married |
| Birthplace | Delaware |
| 1935 Residence (City) | Chester |
| 1935 Residence (County) | Delaware |
| Occupation | Laborer/Foreman |
| Industry | Automobile Construction |
| Class of Worker | PW |
| Hours Worked | 56 |
| Income (1939) | 1600 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Delaware |
| Birth Country | United States |
| Birthplace (normalized) | delaware |
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 Thompson 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 Thompson
Head · 1940 · age 47 · b. ~1893 · 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 — Delaware-County, Pennsylvania
Open full size
1940 US Federal Census — Delaware-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03488-00215)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Ruth X Broomall | 39 | Wife | Housewife | Maryland |
| 42 | Ethel File | 13 | Adopted Daughter | — | Pennsylvania |
| 43 | Clyde Kincheloe | 52 | Head | Clerk | Washington |
| 44 | Ethel Kincheloe | 45 | Wife | Housewife | Pennsylvania |
| 45 | Thomas Mahoney | 54 | Lodger | Iron Worker | Illinois |
| 46 | John Slavin | 56 | Lodger | Iron Worker | New York |
| 47 | William Hart | 25 | Lodger | Iron Worker | Alabama |
| 48 | Margaret Hart | 33 | Lodger | Housewife | Delaware |
| 49 | Thomas R Hobbs | 57 | Head | Engineer | Maryland |
| 50 | Myrtle Hobbs | 46 | Wife | Housewife | Pennsylvania |
| 51 | Lauretta Hobbs | 24 | Daughter | Teacher | Pennsylvania |
| 52 | Renato Coppotelli | 31 | Head | Auto Mechanic | Pennsylvania |
| 53 | Margaret Coppotelli | 35 | Wife | Housewife | Pennsylvania |
| 54 | Theresa Coppotelli | 12 | Daughter | — | Pennsylvania |
| 55 | Ramon Coppotelli | 11 | Son | — | Pennsylvania |
| 56 | Renato Coppotelli | 7 | Son | — | Pennsylvania |
| 57 | Dolores Coppotelli | 0 | Daughter | — | Pennsylvania |
| 58 | Ralph S Thompson THIS PERSON | 47 | Head | Laborer/Foreman | Delaware |
| 59 | Fannie Thompson | 57 | Wife | Housewife | Delaware |
| 60 | Wally Dish | 31 | Son-in-law | Vacuum Machine Operator | Delaware |
| 61 | Pearl Dish | 32 | Daughter | Housewife | Delaware |
| 62 | William Rumford | 58 | Head | Moulder | Pennsylvania |
| 63 | Sarah Rumford | 56 | Wife | Housewife | Pennsylvania |
| 64 | Fred E Keihholtz | 47 | Lodger | Conductor | Pennsylvania |
| 65 | Owen Green | 58 | Head | Janitor | Pennsylvania |
| 66 | Bella P Green | 57 | Wife | Housewife | Pennsylvania |
| 67 | Giulio Chiarieri | 45 | Head | Laborer | Italy |
| 68 | Fedele Chiarieri | 39 | Wife | Housewife | Italy |
| 69 | Frances Chiarieri | 20 | Daughter | Dressmaker | Pennsylvania |
| 70 | Ruth Chiarieri | 18 | Daughter | Dressmaker | Pennsylvania |
| 71 | Josephine Chiarieri | 17 | Daughter | Dressmaker | Pennsylvania |
| 72 | Caroline Chiarieri | 15 | Daughter | — | Pennsylvania |
| 73 | Adelaide Dimarco | 14 | Daughter | — | Pennsylvania |
| 74 | Mary Dimarco | 12 | Daughter | — | Pennsylvania |
| 75 | Angeline Dimarco | 11 | Daughter | — | Pennsylvania |
| 76 | Vincent J Pace | 46 | Head | Realtor | Pennsylvania |
| 77 | Catherine Pace | 42 | Wife | Housewife | Pennsylvania |
| 78 | Mary Pace | 17 | Daughter | — | Pennsylvania |
| 79 | James Pace | 12 | Son | — | Pennsylvania |
| 80 | Samuel Pace | 10 | Son | — | Pennsylvania |
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)