MC
Mary Chapman — 1940 US Census Record
Model Tree available1940 United States Federal Census · Wayne-County, Ohio
Our Model Tree links this Mary Chapman across the 1920, 1930 and 1940 US Censuses in Wayne-County, Ohio (XGBoost, ~Confirmed), with identified parents Harry & Laura — first a daughter (b.~1919), then head of a 3-person household.
Age 21
b. ~1919
Female
Daughter
Born: Ohio
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Wayne-County, Ohio |
| Surname | Chapman |
| Given Name | Mary Jane |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Orrville Village |
| 1935 Residence (County) | Wayne |
| Additional Details | |
| Occupation | Stenographer |
| Industry | Associated Charities |
| Class of Worker | PW |
| Hours Worked | 31 |
| Income (1939) | 55 |
| Highest Grade | H-4 |
| 1935 Residence | Same House |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Occupation | Stenographer |
| Township / Ward | Orrville Village |
| 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 Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Chapman | Daughter | — | 21 | ~1919 |
| Geo Chapman | Head | — | 64 | ~1876 |
| Laura Chapman | Spouse | — | 66 | ~1874 |
Census Appearances
1920
Wayne, Ohio
Daughter, age 3
Wayne, Ohio · implied b. ~1917 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Chapman |
| Given Name | Mary J |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Occupation | none |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1930
Wayne, Ohio
Daughter, age 13
Wayne, Ohio · implied b. ~1917 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Chapman |
| Given Name | Mary Jane |
| Relationship to Head | Daughter |
| Sex | F |
| 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
Wayne-County, Ohio
Daughter, age 21
Wayne-County, Ohio · implied b. ~1919 — 3 household members
| Surname | Chapman |
| Given Name | Mary Jane |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Orrville Village |
| 1935 Residence (County) | Wayne |
| Occupation | Stenographer |
| Industry | Associated Charities |
| Class of Worker | PW |
| Hours Worked | 31 |
| Income (1939) | 55 |
| Highest Grade | H-4 |
| 1935 Residence | Same House |
| 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 Chapman across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Harry Chapman (~0.92 confidence) and mother Laura Chapman (~0.92 confidence) and father Geo Chapman (~0.92 confidence) and father Leo Chapman (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Harry Chapman
b. ~1873
Source father
● Household
· direct · ~0.92
Mother
Laura Chapman
b. ~1874
Source mother
● Household
· direct · ~0.92
Father
Geo Chapman
b. ~1876
Source father
● Household
· direct · ~0.92
Father
Leo Chapman
b. ~1876
Source father
● Household
· direct · ~0.92
This person
Anchor record
Mary Chapman
Daughter · 1940 · age 21 · b. ~1919 · Ohio
★ 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 — Wayne-County, Ohio
Open full size
1940 US Federal Census — Wayne-County, Ohio
Page Contents
38 people indexed on this census page (nara:1940:m-t0627-03167-00017)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Chas Lanham | 34 | Head | Brakeman | Ohio |
| 42 | Rosie Lanham | 32 | Wife | — | Ohio |
| 43 | C. Richard Lanham | 4 | Son | — | Ohio |
| 44 | Frank D. Webb | 47 | Head | Engineman | Ohio |
| 45 | Elda Webb | 41 | Wife | — | Ohio |
| 46 | Byron Webb | 22 | Son | Laborer | Ohio |
| 47 | Hugo Riccometti | 29 | Head | Laborer | Ohio |
| 48 | Edith Riccometti | 21 | Wife | — | Ohio |
| 49 | Lucy Ghiattarelli | 51 | Head | — | Italy |
| 50 | Angelo Ghiattarelli | 20 | Son | Laborer | Ohio |
| 51 | Mildred Ghiattarelli | 18 | Son | — | Ohio |
| 52 | Agnes Ghiattarelli | 17 | Daughter | — | Ohio |
| 53 | Carmel Ghiattarelli | 15 | Daughter | — | Ohio |
| 55 | Geo Chapman | 64 | Head | Butter Maker | Ohio |
| 56 | Laura Chapman | 66 | Wife | Alteration | Ohio |
| 57 | Mary Jane Chapman THIS PERSON | 21 | Daughter | Stenographer | Ohio |
| 58 | J. O. Johnston | 67 | Head | — | Ohio |
| 59 | Carrie Johnston | 67 | Wife | — | Ohio |
| 60 | Hershel Spencer | 46 | Head | Proprietor | Pennsylvania |
| 61 | Susan Spencer | 44 | Wife | — | Ohio |
| 62 | Isaac Stahl | 67 | Head | — | Ohio |
| 63 | Nola Belle Stahl | 64 | Wife | — | Ohio |
| 64 | Clayton Brown | 27 | Head | Clerk | Ohio |
| 65 | Margaret Brown | 23 | Wife | — | Ohio |
| 66 | Isabel Ann Brown | 3 | Daughter | — | Ohio |
| 68 | Merle Hershey | 35 | Head | Salesman | Ohio |
| 69 | Lulu Hershey | 34 | Wife | — | Ohio |
| 70 | Robert Hershey | 13 | Son | — | Ohio |
| 71 | Marian Hershey | 12 | Daughter | — | Ohio |
| 72 | Carol Hershey | 11 | Daughter | — | Ohio |
| 73 | Ella Louise Hershey | 6 | Daughter | — | Ohio |
| 74 | Ray V. Myers | 61 | Head | Railway Mail Clerk | Ohio |
| 75 | Nettie Myers | 61 | Wife | — | Ohio |
| 76 | Robert Myers | 28 | Son | Bookkeeper | Ohio |
| 77 | Merl Moser | 41 | Head | Operator | Ohio |
| 78 | Lillian Moser | 40 | Wife | — | Ohio |
| 79 | Virgil H. Yoder | 28 | Head | Metal Worker | Ohio |
| 80 | Lotta Yoder | 24 | Wife | — | Ohio |
Pedigree Summary
Mary
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)