MP
Mary Powell — 1940 US Census Record
Model Tree available1940 United States Federal Census · Clark-County, Ohio
Our Model Tree links this Mary Powell across the 1920, 1930 and 1940 US Censuses in Clark-County, Ohio (XGBoost, ~Confirmed), with identified parents Nellie & Herbert — first a daughter (b.~1919), then head of a 4-person household.
Age 21
b. ~1919
Female
Daughter
Born: Ohio
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Clark-County, Ohio |
| Surname | Powell |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Springfield |
| 1935 Residence (County) | Clark |
| Additional Details | |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Township / Ward | Springfield |
| 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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Powell | Daughter | — | 21 | ~1919 |
| Herbert Powell | Head | — | 48 | ~1892 |
| William Powell | Son | — | 8 | ~1932 |
| Herbert Powell | Son | — | 15 | ~1925 |
Census Appearances
1920
Clark, Ohio
Daughter, age 1
Clark, Ohio · implied b. ~1919 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Powell |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1930
Clark, Ohio
Daughter, age 11
Clark, Ohio · implied b. ~1919 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Powell |
| Given Name | Mary E |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Can Read/Write | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Clark-County, Ohio
Daughter, age 21
Clark-County, Ohio · implied b. ~1919 — 4 household members
| Surname | Powell |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Springfield |
| 1935 Residence (County) | Clark |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
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 Mary Powell across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Nellie Powell (~0.92 confidence) and father Herbert Powell (~0.92 confidence) and father Herbert Powell (~0.92 confidence) and father William Powell (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Nellie Powell
b. ~1890
Source mother
● Household
· direct · ~0.92
Father
Herbert Powell
b. ~1892
Source father
● Household
· direct · ~0.92
Father
Herbert Powell
b. ~1892
Source father
● Household
· direct · ~0.92
Father
William Powell
b. ~1893
Source father
● Household
· direct · ~0.92
This person
Anchor record
Mary Powell
Daughter · 1940 · age 21 · b. ~1919 · Ohio
★ You are viewing this record
Sibling
William Powell
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Herbert Powell
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Clark-County, Ohio
Open full size
1940 US Federal Census — Clark-County, Ohio
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03040-00470)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Herbert Powell | 48 | Head | Timekeeper | Ohio |
| 2 | Mary Powell THIS PERSON | 21 | Daughter | — | Ohio |
| 3 | Herbert Jr Powell | 15 | Son | Newsboy | Ohio |
| 4 | William Powell | 8 | Son | — | Ohio |
| 5 | Willie Bunton | 45 | Head | Tool Maker | Ohio |
| 6 | Willie Bunton | 47 | Wife | — | Maryland |
| 7 | Violet Baker | 25 | Daughter | Bookkeeper | Ohio |
| 8 | Roberta Baker | 1 | Grandchild | — | Ohio |
| 9 | Mary Edmonson | 63 | Head | Saleslady | Ohio |
| 10 | Frances Edmonson | 29 | Daughter | Dress Dept | Ohio |
| 11 | Arthur Mchenry | 51 | Head | Electrician | Ohio |
| 12 | Dora Mchenry | 42 | Wife | — | Ohio |
| 13 | Robert Mchenry | 25 | Son | Mechanic | Ohio |
| 14 | Donald Mchenry | 20 | Son | Baker | Ohio |
| 15 | Edward Mchenry | 17 | Son | Salesman | Ohio |
| 16 | Marvin Mchenry | 15 | Son | Newsboy | Ohio |
| 17 | Alva Mchenry | 54 | Brother | — | Ohio |
| 18 | James Franklin | 33 | Head | Paper Hanger | Ohio |
| 19 | Mary Franklin | 33 | Wife | — | Ohio |
| 20 | Marshall Franklin | 15 | Daughter | — | Ohio |
| 21 | Margaret Franklin | 6 | Daughter | — | Ohio |
| 22 | James Jr. Franklin | 4 | Son | — | Ohio |
| 23 | Sue Carol Franklin | 1 | Daughter | — | Ohio |
| 24 | Eugene Kindling | 39 | Head | Truck Helper | Ohio |
| 25 | Beulah Kindling | 34 | Wife | — | Ohio |
| 26 | Hugh Kindling | 17 | Son | — | Ohio |
| 27 | Wayne Kindling | 13 | Son | — | Ohio |
| 28 | Bruce Kindling | 8 | Son | — | Ohio |
| 29 | Orva Click | 55 | Head | Salesman | Ohio |
| 30 | Grace Click | 52 | Wife | — | Ohio |
| 31 | Dora Click | 20 | Daughter | Teacher | Ohio |
| 32 | Rose Mary Click | 14 | Daughter | — | Ohio |
| 33 | Nellie Baker | 24 | Head | — | Ohio |
| 34 | Mellie Karns | 39 | Son | Salesman | Ohio |
| 35 | Aris Ann Karns | 31 | Daughter | — | Ohio |
| 36 | Robert Callison | 37 | Head | Tool + Die Maker | Ohio |
| 37 | Floyd Callison | 30 | Wife | — | Ohio |
| 38 | Robert Jr Callison | 14 | Son | Newsboy | Ohio |
| 39 | James Callison | 2 | Son | — | Ohio |
| 40 | Oscar Grole | 37 | Head | Director | Ohio |
Pedigree Summary
Mary + 2 siblings
Gen 1 · 4 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)