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Mary Bell — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Jefferson, Ohio
Our Model Tree links this Mary Bell across the 1920 and 1930 US Censuses in Jefferson, Ohio (XGBoost, ~Confirmed) — first a daughter (b.~1909), then head of a 17-person household.
Age 21
b. ~1909
Female
Daughter
Born: England
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Jefferson, Ohio |
| Surname | Bell |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | England |
| Naturalization Status | Naturalized |
| Year of Immigration | 1907 |
| Father's Birthplace | England |
| Mother's Birthplace | England |
| Additional Details | |
| Occupation | Clerk |
| Industry | Water Dept |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Birth Country | England |
| Birthplace (normalized) | england |
| Occupation | Clerk |
| Township / Ward | Grover Village |
| Est. Birth Year | ~1909 |
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.
17 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Bell | Daughter | — | 21 | ~1909 |
| Violet Bell | Daughter | — | 12 | ~1918 |
| Mary Wilmar | Daughter | — | 1 | ~1929 |
| Doris Youngman | Daughter | — | 3 | ~1927 |
| Thomas Bell | Head | — | 45 | ~1885 |
| Alfonso Youngman | Other | — | 40 | ~1890 |
| Isabella Bell | Other | — | 43 | ~1887 |
| Mary Wilmar | Other | — | 28 | ~1902 |
| Andrew Wilmar | Other | — | 38 | ~1892 |
| Kathryn Mcmurtrie | Other | — | 2 | ~1928 |
| Mary Youngman | Other | — | 37 | ~1893 |
| John Bell | Son | — | 18 | ~1912 |
| William Wilmar | Son | — | 6 | ~1924 |
| Alfonso Youngman | Son | — | 6 | ~1924 |
| William Youngman | Son | — | 8 | ~1922 |
| Ernest Wilmar | Son | — | 7 | ~1923 |
| Joseph Wilmar | Son | — | 3 | ~1927 |
Census Appearances
1920
Jefferson, Ohio
Daughter, age 11
Jefferson, Ohio · implied b. ~1909 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Bell |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | England |
| Year of Immigration | 1902 |
| Naturalization Status | Alien |
| Father's Birthplace | England |
| Mother's Birthplace | England |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth Country | England |
| Birthplace (normalized) | england |
1930
Jefferson, Ohio
Daughter, age 21
Jefferson, Ohio · implied b. ~1909 — 17 household members
| Surname | Bell |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | England |
| Naturalization Status | Naturalized |
| Year of Immigration | 1907 |
| Father's Birthplace | England |
| Mother's Birthplace | England |
| Occupation | Clerk |
| Industry | Water Dept |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Birth Country | England |
| Birthplace (normalized) | england |
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 Bell across 2 US Census years (1920 and 1930) in Jefferson, Ohio, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Bell
Daughter · 1930 · age 21 · b. ~1909 · Ohio
★ You are viewing this record
Sibling
Joseph Wilmar
Sibling · 1930 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ernest Wilmar
Sibling · 1930 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Wilmar
Sibling · 1930 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alfonso Youngman
Sibling · 1930 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Bell
Sibling · 1930 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Doris Youngman
Sibling · 1930 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Wilmar
Sibling · 1930 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Violet Bell
Sibling · 1930 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Youngman
Sibling · 1930 · age 8
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
1930 US Federal Census — Jefferson, Ohio
Open full size
1930 US Federal Census — Jefferson, Ohio
Page Contents
50 people indexed on this census page (ia:1930:ohiocensus00reel1825:0758)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Florence L | 11 | Daughter | — | Pennsylvania |
| 2 | Donald E | 4 | Son | — | Pennsylvania |
| 3 | Edward Kotehka | 40 | Head | Foreman | Pennsylvania |
| 4 | Jennie Kotehka | 36 | Wife-H | — | Ohio |
| 5 | Louise E Kotehka | 11 | Daughter | — | Ohio |
| 6 | John Bell | 52 | Head | Coal Miner | England |
| 7 | Mary J Bell | 51 | Wife-H | — | England |
| 8 | Watson Bell | 19 | Son | Kiln Drawer | England |
| 9 | Thomas Bell | 45 | Head | Hook Up Bone | England |
| 10 | Isabella S Bell | 43 | Wife-H | — | England |
| 11 | Mary Bell THIS PERSON | 21 | Daughter | Clerk | England |
| 12 | John Bell | 18 | Son | — | Ohio |
| 13 | Violet Bell | 12 | Daughter | — | Ohio |
| 14 | Andrew Wilmar | 38 | O | Heater | Czechoslovakia |
| 15 | Mary T Wilmar | 28 | Wife-H | — | Czechoslovakia |
| 16 | Ernest Wilmar | 7 | Son | — | Ohio |
| 17 | William Wilmar | 6 | Son | — | Ohio |
| 18 | Joseph Wilmar | 3 | Son | — | Ohio |
| 19 | Mary C Wilmar | 1 | Daughter | — | Ohio |
| 20 | Alfonso R Youngman | 40 | O | Electrician | Ohio |
| 21 | Mary A Youngman | 37 | Wife-H | — | England |
| 22 | William F Youngman | 8 | Son | — | Ohio |
| 23 | Alfonso R Jr Youngman | 6 | Son | — | Ohio |
| 24 | Doris L Youngman | 3 | Daughter | — | Ohio |
| 25 | Kathryn A Mcmurtrie | 2 | Niece | — | Ohio |
| 26 | William Dobson | 66 | Head | Coal Miner | England |
| 27 | Robert Dobson | 33 | Son | Lever Boy | England |
| 28 | Currie Helen Dobson | 31 | Daughter-H | — | England |
| 29 | James Hogg | 36 | Lodger | Fire Boss | Scotland |
| 30 | John Mills | 39 | Head | Electrician | England |
| 31 | Winnie Mills | 39 | Wife-H | — | Ohio |
| 32 | Ella M Mills | 7 | Daughter | — | Ohio |
| 33 | Robert Reese | 81 | Father-in-law | — | Ohio |
| 34 | Edward Reese | 48 | Brother-in-law | Stencilier | Ohio |
| 35 | Clarence Holt | 28 | Head | Roller | West Virginia |
| 36 | Ruby L Holt | 29 | Wife-H | — | Ohio |
| 37 | Lawrence Holt | 10 | Son | — | Ohio |
| 38 | Ray N Holt | 7 | Son | — | Pennsylvania |
| 39 | Edward M Holt | 5 | Son | — | Ohio |
| 40 | Morley J Holt | 2 | Son | — | Ohio |
| 41 | Mary W Brand | 68 | Mother-in-law | — | Ohio |
| 42 | Campbell Fiddle | 28 | Head | Machinist | Ohio |
| 43 | Ethel Fiddle | 23 | Wife-H | — | Ohio |
| 44 | Madeline G Fiddle | 2 | Daughter | — | Ohio |
| 45 | James H Fulton | 88 | Father-in-law | — | Ohio |
| 46 | Irvin Dietrich | 45 | Head | Tely Operator | Ohio |
| 47 | Nora Dietrich | 38 | Wife-H | — | Ohio |
| 48 | Marie Dietrich | 18 | Daughter | — | Ohio |
| 49 | John Dietrich | 12 | Son | — | Ohio |
| 50 | Harry Quinn | 26 | Nephew | Clerk | Ohio |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)