HT
Harold Thompson — 1940 US Census Record
Model Tree available1940 United States Federal Census · New-Castle-County, Delaware
Our Model Tree links this Harold Thompson across the 1920, 1930 and 1940 US Censuses in New-Castle-County, Delaware (XGBoost, ~Confirmed), with identified parents Elizabeth — first a head (b.~1892), then head of a 3-person household.
Age 48
b. ~1892
Male
Head
Born: Delaware
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | New-Castle-County, Delaware |
| Surname | Thompson |
| Given Name | Harold L. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 48 |
| Marital Status | Married |
| Birthplace | Delaware |
| 1935 Residence (City) | Wilm. |
| 1935 Residence (County) | New Castle |
| Additional Details | |
| Occupation | Executive |
| Industry | Lumber Yard |
| Class of Worker | PW |
| Hours Worked | 60 |
| Highest Grade | H-3 |
| 1935 Residence | Delaware |
| Birth State | Delaware |
| Birth Country | United States |
| Birthplace (normalized) | delaware |
| Occupation | Executive |
| Township / Ward | Mill Creek Hundred Rd 1 |
| Est. Birth Year | ~1892 |
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 Harold | Age | Birth yr |
|---|---|---|---|---|
| Barbara Thompson | Daughter | — | 11 | ~1929 |
| Harold Thompson | Head | — | 48 | ~1892 |
| Florence Thompson | Spouse | — | 50 | ~1890 |
Census Appearances
1920
New Castle, …
Son, age 27
New Castle, Delaware · implied b. ~1893 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Harold P. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Delaware |
| Father's Birthplace | Delaware |
| Mother's Birthplace | Delaware |
| Occupation | Salesman |
| Industry | Lumber Yard |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Delaware |
| Birth Country | United States |
| Birthplace (normalized) | delaware |
1930
New Castle, …
Head, age 38
New Castle, Delaware · implied b. ~1892 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Harold E. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 38 |
| Marital Status | Married |
| Birthplace | Delaware |
| Age at First Marriage | 35 |
| Father's Birthplace | Delaware |
| Mother's Birthplace | Delaware |
| Occupation | Superintendent |
| Industry | Millwork |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 12,000 |
| Birth State | Delaware |
| Birth Country | United States |
| Birthplace (normalized) | delaware |
1940
New-Castle-County, Delaware
Head, age 48
New-Castle-County, Delaware · implied b. ~1892 — 3 household members
| Surname | Thompson |
| Given Name | Harold L. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 48 |
| Marital Status | Married |
| Birthplace | Delaware |
| 1935 Residence (City) | Wilm. |
| 1935 Residence (County) | New Castle |
| Occupation | Executive |
| Industry | Lumber Yard |
| Class of Worker | PW |
| Hours Worked | 60 |
| Highest Grade | H-3 |
| 1935 Residence | Delaware |
| 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 Harold Thompson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Elizabeth Thompson (~0.92 confidence). The pedigree spans 1 generation with 1 identified ancestor.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Elizabeth Thompson
b. ~1873
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Harold Thompson
Head · 1940 · age 48 · b. ~1892 · Delaware
★ 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 — New-Castle-County, Delaware
Open full size
1940 US Federal Census — New-Castle-County, Delaware
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00546-00036)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Nancy J. Wilkinson | 4 | Daughter | — | Delaware |
| 42 | Florence Wilkinson | 58 | Mother | — | Pennsylvania |
| 43 | Coleman Wilkinson | 58 | Brother | Spellupator | Delaware |
| 44 | Fred T. Weer | 67 | Head | Farmer | Delaware |
| 45 | Jennie S. Weer | 71 | Wife | — | Maryland |
| 46 | John Waiver | 53 | Head | Farmer | Delaware |
| 47 | Clara M. Waiver | 51 | Wife | — | Delaware |
| 48 | Roy Waiver | 16 | Son | — | Delaware |
| 49 | Madeline Waiver | 14 | Daughter | — | Delaware |
| 50 | Nelson Waiver | 10 | Son | — | Delaware |
| 51 | Clarence Bracking | 59 | Head | — | Delaware |
| 52 | Emma L. Bracking | 60 | Wife | — | Delaware |
| 53 | Woodrow W. Bracking | 22 | Son | Helper | Delaware |
| 54 | Wm. H. Bracking | 28 | Son | Salesman | Delaware |
| 55 | Beatrice Bracking | 29 | Daughter-in-law | — | Delaware |
| 56 | Wm. H. Jr. Bracking | 4 | Grandson | — | Delaware |
| 57 | Clinton Bracking | 37 | Head | Gardener | Delaware |
| 58 | Mary E. Bracking | 29 | Wife | — | Delaware |
| 59 | Helen M. Bracking | 7 | Daughter | — | Delaware |
| 60 | M. Elizabeth Bracking | 5 | Daughter | — | Delaware |
| 61 | Clarence R. Bracking | 1 | Son | — | Delaware |
| 62 | Lewis Palmer | 32 | Head | Chemist | Penna |
| 63 | Francis Palmer | 30 | Wife | — | Delaware |
| 64 | Allan Palmer | 7 | Son | — | New Jersey |
| 65 | Wm. T. Pratt | 43 | Head | President | Penna |
| 66 | Bett B. Pratt | 38 | Wife | — | New York |
| 67 | Shirley Pratt | 15 | Daughter | — | New York |
| 68 | Gilbert D. Hanley | 60 | Head | 54 | Vermont |
| 69 | Catherine Hanley | 60 | Wife | — | Ireland |
| 70 | George W. Bird | 25 | Head | 40 | Penna |
| 71 | Frank J. Lane | 35 | Lodger | 40 | Conn |
| 72 | Ethel Cheyney | 35 | Head | Teacher | Penna |
| 73 | Robert Watkins | 28 | Head | Helper | Penna |
| 74 | Alice J. Watkins | 23 | Wife | File Clerk | Delaware |
| 75 | John B. Jr. Thropp | 41 | Head | Service Mgr. | New Jersey |
| 76 | Genevieve J. Thropp | 42 | Wife | — | New Jersey |
| 77 | John B. 4Th Thropp | 10 | Son | — | Delaware |
| 78 | Harold L. Thompson THIS PERSON | 48 | Head | Executive | Delaware |
| 79 | Florence Thompson | 50 | Wife | Stenographer | Delaware |
| 80 | Barbara Thompson | 11 | Daughter | — | Delaware |
Pedigree Summary
Harold
Gen 1 · 1 parents
~0.92
Max depth 4 (1900–1950 window)
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)