HT
Helen Thompson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Chester-County, Pennsylvania
Our Model Tree links this Helen Thompson across the 1920, 1930 and 1940 US Censuses in Chester-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents Charles & Charles — first a daughter (b.~1919), then head of a 3-person household.
Age 21
b. ~1919
Female
Daughter
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Chester-County, Pennsylvania |
| Surname | Thompson |
| Given Name | Helen E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Coatesville City |
| 1935 Residence (County) | Chester |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | H-4 |
| 1935 Residence | Same house |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Coatesville City |
| Est. Birth Year | ~1919 |
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 Helen | Age | Birth yr |
|---|---|---|---|---|
| Helen Thompson | Daughter | — | 21 | ~1919 |
| Charles Thompson | Head | — | 49 | ~1891 |
| Lottie Thompson | Spouse | — | 47 | ~1893 |
Census Appearances
1920
Chester, Pennsylvania
Daughter, age 1
Chester, Pennsylvania · implied b. ~1919 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Helen E. |
| Relationship to Head | Daughter |
| Sex | F |
| 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 |
1930
Chester, Pennsylvania
Daughter, age 11
Chester, Pennsylvania · implied b. ~1919 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Helen |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Chester-County, Pennsylvania
Daughter, age 21
Chester-County, Pennsylvania · implied b. ~1919 — 3 household members
| Surname | Thompson |
| Given Name | Helen E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Coatesville City |
| 1935 Residence (County) | Chester |
| Income (1939) | 0 |
| Highest Grade | H-4 |
| 1935 Residence | Same house |
| 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 Helen Thompson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Charles Thompson (~0.92 confidence) and father Charles Thompson (~0.92 confidence) and mother Lottie Thompson (~0.92 confidence) and mother Lottie Thompson (~0.92 confidence) and father Charles Thompson (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Charles Thompson
b. ~1891
Source father
● Household
· direct · ~0.92
Father
Charles Thompson
b. ~1891
Source father
● Household
· direct · ~0.92
Mother
Lottie Thompson
b. ~1893
Source mother
● Household
· direct · ~0.92
Mother
Lottie Thompson
b. ~1893
Source mother
● Household
· direct · ~0.92
Father
Charles Thompson
b. ~1901
Source father
● Household
· direct · ~0.92
This person
Anchor record
Helen Thompson
Daughter · 1940 · age 21 · b. ~1919 · 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 — Chester-County, Pennsylvania
Open full size
1940 US Federal Census — Chester-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03464-00352)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Carrie E. Shoemaker | 65 | Aunt | — | Pennsylvania |
| 2 | Charles H. Thompson | 49 | Head | Crane Operator | Pennsylvania |
| 3 | Lottie E. Thompson | 47 | Wife | — | Pennsylvania |
| 4 | Helen E. Thompson THIS PERSON | 21 | Daughter | — | Pennsylvania |
| 5 | Elmer J. Forbes | 57 | Head | Helper | Pennsylvania |
| 6 | Mabel L. Forbes | 56 | Wife | — | Pennsylvania |
| 7 | Wayne A. Forbes | 25 | Son | Attendant | Pennsylvania |
| 8 | Ella M. Wolf | 56 | Head | — | Pennsylvania |
| 9 | Ray J. Wolf | 30 | Son | Attendant | Pennsylvania |
| 10 | William Y. Wolf | 27 | Son | Flanger | Pennsylvania |
| 11 | Janet E. Wolf | 24 | Daughter | Clerk | Pennsylvania |
| 12 | Lester K. Dawson | 32 | Boarder | — | Pennsylvania |
| 13 | Edward Conway | 41 | Boarder | Policeman | Pennsylvania |
| 14 | Harlan Thompson | 49 | Head | Charger | Pennsylvania |
| 15 | Rachel R. Thompson | 44 | Wife | — | Pennsylvania |
| 16 | John E. Thompson | 22 | Son | Laborer | Pennsylvania |
| 17 | Jean E. Thompson | 21 | Daughter | Packing | Pennsylvania |
| 18 | Bessie M. Philips | 64 | Head | — | Pennsylvania |
| 19 | Susan E. Mast | 81 | Sister | — | Pennsylvania |
| 20 | Joseph H. Mast | 72 | Brother | — | Pennsylvania |
| 21 | John H. Retten | 70 | Head | — | Pennsylvania |
| 22 | Frances A. Retten | 69 | Wife | — | Pennsylvania |
| 23 | Harold R. Townsley | 20 | Grandson | — | Pennsylvania |
| 24 | Charles M. Sr. Witmer | 43 | Head | Electrician | Pennsylvania |
| 25 | Elnora G. Witmer | 47 | Wife | — | Delaware |
| 26 | Evelyn P. Witmer | 22 | Daughter | Cashier | Pennsylvania |
| 27 | Charles Jr. Witmer | 16 | Son | — | Pennsylvania |
| 28 | Mildred R. Witmer | 14 | Daughter | — | Pennsylvania |
| 29 | Harold L. Witmer | 13 | Son | — | Pennsylvania |
| 30 | Blanche E. Watkins | 44 | Head | Weaver | Pennsylvania |
| 31 | Channing B. Watkins | 19 | Son | — | Pennsylvania |
| 32 | Virginia B. Watkins | 16 | Daughter | — | Pennsylvania |
| 33 | Elizabeth Redman | 75 | Mother | — | Pennsylvania |
| 34 | George W. Redman | 33 | Brother | Clerk | Pennsylvania |
| 35 | Frank B. March | 27 | Nephew | Helper | Pennsylvania |
| 36 | Herman Whiteman | 26 | Boarder | Clerk | Pennsylvania |
| 37 | Extra Line | None | — | — | — |
| 38 | French S. George | 31 | Head | Repairman | Pennsylvania |
| 39 | Laura V. George | 28 | Wife | — | Pennsylvania |
| 40 | Gwendolyn George | 8 | Daughter | — | Pennsylvania |
Pedigree Summary
Helen
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 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)