MR
Mary Randall — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Champaign-County, Ohio
Our Model Tree links this Mary Randall across the 1930 and 1940 US Censuses in Champaign-County, Ohio (XGBoost, ~Confirmed) — first a daughter (b.~1930), then head of a 7-person household.
Age 10
b. ~1930
Female
Daughter
Born: Ohio
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Champaign-County, Ohio |
| Surname | Randall |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Springfield |
| 1935 Residence (County) | Clark |
| Additional Details | |
| Highest Grade | 3 |
| 1935 Residence | Ohio |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Township / Ward | Mad River |
| Est. Birth Year | ~1930 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Christiana Randall | Daughter | — | 12 | ~1928 |
| Dorothy Randall | Spouse | — | 44 | ~1896 |
| Beulah Randall | Daughter | — | 17 | ~1923 |
| Della Randall | Daughter | — | 15 | ~1925 |
| James Randall | Head | — | 46 | ~1894 |
| Mary Randall | Daughter | — | 10 | ~1930 |
| Earl Randall | Son | — | 20 | ~1920 |
Census Appearances
1930
Clark, Ohio
Other, age
Clark, Ohio · implied b. ~1930 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Randall |
| Given Name | Mary |
| Relationship to Head | Niece |
| Sex | F |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Champaign-County, Ohio
Daughter, age 10
Champaign-County, Ohio · implied b. ~1930 — 7 household members
| Surname | Randall |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Springfield |
| 1935 Residence (County) | Clark |
| Highest Grade | 3 |
| 1935 Residence | Ohio |
| 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 Randall across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Randall
Daughter · 1940 · age 10 · b. ~1930 · Ohio
★ You are viewing this record
Sibling
Beulah Randall
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Earl Randall
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Della Randall
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Christiana Randall
Sibling · 1940 · age 12
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 — Champaign-County, Ohio
Open full size
1940 US Federal Census — Champaign-County, Ohio
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03037-00290)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | S. Ned Ward | 11 | Head | — | Ohio |
| 42 | Lawrence Jordan | 18 | Boarder | Farm Labor | Ohio |
| 43 | Robert M. Q. Ward | 27 | Head | Farm Labor | Ohio |
| 44 | Lana Louise Ward | 24 | Wife | — | Ohio |
| 45 | Robert M. Jr. Ward | 2 | Son | — | Ohio |
| 46 | Robert Mcinturf | 28 | Head | Clerk | Ohio |
| 47 | Lois Mcinturf | 25 | Wife | — | Ohio |
| 48 | Phillip Wayne Mcinturf | 6 | Son | — | Ohio |
| 49 | Kayla Mcinturf | 3 | Daughter | — | Ohio |
| 50 | Samuel E. Whitacre | 70 | Head | Farmer | Ohio |
| 51 | Ola Whitacre | 69 | Wife | — | Ohio |
| 52 | Joseph Whitacre | 40 | Son | Farmer | Ohio |
| 53 | Richard Whitacre | 40 | Son | — | Ohio |
| 54 | Betty Louise Whitacre | 11 | Daughter | — | Ohio |
| 55 | Arthur Wilbur Dunkle | 45 | Head | Lawyer | Ohio |
| 56 | Sarah J. Dunkle | 38 | Wife | Clerk | Ohio |
| 57 | Benjamin A. Newman | 65 | Head | — | Ohio |
| 58 | Annie P. D. Newman | 64 | Wife | — | Ohio |
| 59 | James R. Randall | 46 | Head | Assembler | Ohio |
| 60 | Dorothy Randall | 44 | Wife | — | Ohio |
| 61 | Earl Randall | 20 | Son | Farm Labor | Ohio |
| 62 | Beulah Randall | 17 | Daughter | — | Ohio |
| 63 | Della Randall | 15 | Daughter | — | Ohio |
| 64 | Christiana Randall | 12 | Daughter | — | Ohio |
| 65 | Mary Randall THIS PERSON | 10 | Daughter | — | Ohio |
| 66 | Harry Bunker | 59 | Head | Farmer | Ohio |
| 67 | Maude R. Bunker | 60 | Wife | — | Ohio |
| 68 | Myron Hecker | 33 | Head | Painter | Ohio |
| 69 | Fernell Hecker | 30 | Wife | — | Ohio |
| 70 | Myron Donald Hecker | 12 | Son | — | Ohio |
| 71 | Harold Hecker | 9 | Son | — | Ohio |
| 72 | Carol Ann Hecker | 1 | Daughter | — | Ohio |
| 73 | Charles S. Green | 48 | Head | Farm Labor | Penna |
| 74 | Hazel Green | 45 | Wife | — | Ohio |
| 75 | Melvin Green | 16 | Son | — | Ohio |
| 76 | David Smith | 35 | Head | Laborer | Ohio |
| 77 | Ethel Smith | 25 | Wife | — | West Virginia |
| 78 | Eugene Smith | 8 | Son | — | Ohio |
| 79 | Delores Smith | 7 | Daughter | — | Ohio |
| 80 | Ethel Mae Smith | 5 | Daughter | — | Ohio |
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)