RP
Robert Pierce — 1940 US Census Record
Model Tree available1940 United States Federal Census · Hardin-County, Ohio
Our Model Tree links this Robert Pierce across the 1920, 1930 and 1940 US Censuses in Hardin-County, Ohio (XGBoost, ~Confirmed), with identified parents Frank & Frank — first a son (b.~1917), then head of a 3-person household.
Age 23
b. ~1917
Male
Son
Born: Ohio
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Hardin-County, Ohio |
| Surname | Pierce |
| Given Name | Robert |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Kenton city |
| 1935 Residence (County) | Hardin |
| Additional Details | |
| Occupation | laborer |
| Industry | W.P.A. |
| Class of Worker | PW |
| Hours Worked | 12 |
| Income (1939) | 300 |
| Highest Grade | Hs 1 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Occupation | Laborer |
| Township / Ward | Kenton City |
| Est. Birth Year | ~1917 |
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 Robert | Age | Birth yr |
|---|---|---|---|---|
| Robert Pierce | Son | — | 23 | ~1917 |
| Edna Pierce | Head | — | 50 | ~1890 |
| Willis Pierce | Son | — | 25 | ~1915 |
Census Appearances
1920
Hardin, Ohio
Son, age 3
Hardin, Ohio · implied b. ~1917 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Pierce |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1930
Hardin, Ohio
Son, age 13
Hardin, Ohio · implied b. ~1917 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Pierce |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| 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
Hardin-County, Ohio
Son, age 23
Hardin-County, Ohio · implied b. ~1917 — 3 household members
| Surname | Pierce |
| Given Name | Robert |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Kenton city |
| 1935 Residence (County) | Hardin |
| Occupation | laborer |
| Industry | W.P.A. |
| Class of Worker | PW |
| Hours Worked | 12 |
| Income (1939) | 300 |
| Highest Grade | Hs 1 |
| 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 Robert Pierce across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Frank Pierce (~0.92 confidence) and father Frank Pierce (~0.92 confidence) and mother Edna Pierce (~0.92 confidence) and mother Anna Pierce (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Frank Pierce
b. ~1875
Source father
● Household
· direct · ~0.92
Father
Frank Pierce
b. ~1884
Source father
● Household
· direct · ~0.92
Mother
Edna Pierce
b. ~1890
Source mother
● Household
· direct · ~0.92
Mother
Anna Pierce
b. ~1892
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Pierce
Son · 1940 · age 23 · b. ~1917 · Ohio
★ You are viewing this record
Sibling
Willis Pierce
Sibling · 1940 · age 25
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 — Hardin-County, Ohio
Open full size
1940 US Federal Census — Hardin-County, Ohio
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03082-00198)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Edward Steele | 36 | Head | Laborer | Ohio |
| 2 | Mary Steele | 25 | Wife | Housewife | Ohio |
| 3 | Leona May Steele | 6 | daughter | — | Ohio |
| 4 | Donald Eugene Steele | 4 | son | — | Ohio |
| 5 | Barbara June Steele | 2 | daughter | — | Ohio |
| 6 | Helen Arlene Steele | 0 | daughter | — | Ohio |
| 7 | Clifford Steel | 42 | Head | Laborer | Ohio |
| 8 | Bessie Steel | 39 | wife | Housewife | Ohio |
| 9 | Eva Steel | 15 | daughter | — | Ohio |
| 10 | Ray Steel | 12 | son | — | Ohio |
| 11 | Helen Steel | 9 | daughter | — | Ohio |
| 12 | Roy Steel | 5 | son | — | Ohio |
| 13 | Vera Steel | 2 | daughter | — | Ohio |
| 14 | Mary Steel | 0 | daughter | — | Ohio |
| 15 | Clara Shields | 50 | Head | Housekeeper | Ohio |
| 16 | Lilly Shields | 48 | boarder | Laborer | Ohio |
| 17 | Franklin Mobb | 31 | Head | Laborer | Ohio |
| 18 | Bernice Mobb | 26 | wife | — | Ohio |
| 19 | Charles Fleece | 39 | Head | Pipefitter | Ohio |
| 20 | Clara Fleece | 30 | wife | Housewife | Ohio |
| 21 | Phyllis Evans | 11 | stepdaughter | — | Ohio |
| 22 | Richard Fleece | 6 | son | — | Ohio |
| 23 | Charles Jr. Fleece | 5 | son | — | Ohio |
| 24 | Shirley Fleece | 2 | daughter | — | Ohio |
| 25 | Charles Cline | 44 | Head | Grocery Store | Ohio |
| 26 | Ida Belle Cline | 45 | wife | Grocery Store | Ohio |
| 27 | Laura Thomas | 44 | Head | Seamstress | Ohio |
| 28 | Lucy Thomas | 24 | daughter | Waitress | Ohio |
| 29 | Omie Thomas | 24 | son | None Now | Ohio |
| 30 | Art Thomas | 20 | son | — | Ohio |
| 31 | Frank Ronald Thomas | 2 | grandson | — | Ohio |
| 32 | Edna Pierce | 50 | Head | Housewife | Ohio |
| 33 | Willis Pierce | 25 | son | None Now | Ohio |
| 34 | Robert Pierce THIS PERSON | 23 | son | Laborer | Ohio |
| 35 | Isaac Hall | 31 | Head | Laborer | Kentucky |
| 36 | Marie Hall | 20 | wife | Laborer | Ohio |
| 37 | Ben Covert | 71 | Head | Old Age Pension | Ohio |
| 38 | Henrietta Covert | 50 | wife | Housewife | Illinois |
| 39 | Leona Strahm | 35 | daughter | — | Ohio |
| 40 | Margaret Strahm | 16 | granddaughter | — | Ohio |
Pedigree Summary
Robert + 1 sibling
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)