MO
Mary Orr — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Marion-County, Ohio
Our Model Tree links this Mary Orr across the 1930 and 1940 US Censuses in Marion-County, Ohio (XGBoost, ~Confirmed) — first a daughter (b.~1922), then head of a 11-person household.
Age 18
b. ~1922
Female
Daughter
Born: Ohio
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Marion-County, Ohio |
| Surname | Orr |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Marion City |
| 1935 Residence (County) | Marion |
| Additional Details | |
| Industry | S |
| Class of Worker | 0 |
| Highest Grade | H 2 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Township / Ward | Marion City |
| Est. Birth Year | ~1922 |
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.
11 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Wanda Orr | Daughter | — | 9 | ~1931 |
| Ernest Orr | Head | — | 40 | ~1900 |
| Ruth Orr | Spouse | — | 38 | ~1902 |
| Charles Orr | Son | — | 1 | ~1939 |
| Mary Orr | Daughter | — | 18 | ~1922 |
| Virginia Orr | Daughter | — | 14 | ~1926 |
| Anna Orr | Daughter | — | 17 | ~1923 |
| Shirley Orr | Daughter | — | 3 | ~1937 |
| Barbara Orr | Daughter | — | 6 | ~1934 |
| Jack Orr | Son | — | 8 | ~1932 |
| Troy Orr | Son | — | 11 | ~1929 |
Census Appearances
1930
Marion, Ohio
Daughter, age 7
Marion, Ohio · implied b. ~1923 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Orr |
| Given Name | Maxine |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 7 |
| 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
Marion-County, Ohio
Daughter, age 18
Marion-County, Ohio · implied b. ~1922 — 11 household members
| Surname | Orr |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Marion City |
| 1935 Residence (County) | Marion |
| Industry | S |
| Class of Worker | 0 |
| Highest Grade | H 2 |
| 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 Orr across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Orr
Daughter · 1940 · age 18 · b. ~1922 · Ohio
★ You are viewing this record
Sibling
Barbara Orr
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Troy Orr
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Virginia Orr
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Wanda Orr
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jack Orr
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Shirley Orr
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charles Orr
Sibling · 1940 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Anna Orr
Sibling · 1940 · age 17
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 — Marion-County, Ohio
Open full size
1940 US Federal Census — Marion-County, Ohio
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03110-00411)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Mary Colegrove | 55 | Wife | — | Ohio |
| 2 | Ernest Orr | 40 | Head | Painter | Ohio |
| 3 | Ruth Orr | 38 | Wife | — | Ohio |
| 4 | Mary Orr THIS PERSON | 18 | Daughter | — | Ohio |
| 5 | Anna Orr | 17 | Daughter | New Worker | Ohio |
| 6 | Virginia Orr | 14 | Daughter | — | Ohio |
| 7 | Troy Orr | 11 | Son | — | Ohio |
| 8 | Wanda Orr | 9 | Daughter | — | Ohio |
| 9 | Jack Orr | 8 | Son | — | Ohio |
| 10 | Barbara Orr | 6 | Daughter | — | Ohio |
| 11 | Shirley Orr | 3 | Daughter | — | Ohio |
| 12 | Charles Orr | 1 | Son | — | Ohio |
| 13 | Garfield French | 57 | Head | Salesman | Kentucky |
| 14 | Rose French | 52 | Wife | — | Kentucky |
| 15 | Garnet French | 28 | Daughter | Housework | Ohio |
| 16 | Donald French | 21 | Son | Laborer | Ohio |
| 17 | Leroy French | 17 | Son | Laborer | Ohio |
| 18 | Eugene French | 15 | Son | — | Ohio |
| 19 | Theodore Benson | 38 | Head | Laborer | Minnesota |
| 20 | Elnora Benson | 34 | Wife | Press Operator | Ohio |
| 21 | Norma Ayres | 6 | Daughter | — | Ohio |
| 22 | Mycent Bob | 19 | Lodger | — | Ohio |
| 23 | Spencer Jones | 40 | Head | Trucker | Ohio |
| 24 | Josephine Jones | 42 | Wife | Pressman | Ohio |
| 25 | Della Jones | 15 | Daughter | — | Ohio |
| 26 | Dallas Jones | 13 | Son | — | Ohio |
| 27 | Robert Jones | 8 | Son | — | Ohio |
| 28 | Carney Hughes | 42 | Head | Milk Salesman | Ohio |
| 29 | Winnie Hughes | 39 | Wife | — | Ohio |
| 30 | Agnes Hughes | 18 | Daughter | House Work | Ohio |
| 31 | Elwin Hughes | 15 | Son | — | Ohio |
| 32 | William Simpkins | 60 | Head | Laborer | Ohio |
| 33 | Maggie Simpkins | 58 | Wife | — | Ohio |
| 34 | Dolores Simpkins | 17 | Daughter | New Worker | Ohio |
| 35 | Lenora Simpkins | 13 | Daughter | — | Ohio |
| 36 | Roy Morris | 52 | Head | Laborer | Ohio |
| 37 | Bertha Morris | 50 | Wife | — | Ohio |
| 38 | Clarence Everly | 34 | Head | Laborer | Ohio |
| 39 | Alice Everly | 27 | Wife | — | Illinois |
| 40 | Joseph Dumganus | 30 | Brother-in-law | Bar Tender | Illinois |
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)