MB
Mary Bell — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Wayne, Michigan
Our Model Tree links this Mary Bell across the 1930 and 1940 US Censuses in Wayne, Michigan (XGBoost, ~Confirmed) — first a daughter (b.~1921), then head of a 11-person household.
Age 9
b. ~1921
Female
Daughter
Born: Michigan
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Wayne, Michigan |
| Surname | Bell |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Michigan |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
| Township / Ward | Inkster Village |
| Est. Birth Year | ~1921 |
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 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Anna Bell | Daughter | — | 4 | ~1926 |
| Mary Bell | Daughter | — | 9 | ~1921 |
| Rosella Bell | Daughter | — | 20 | ~1910 |
| Margaret Bell | Daughter | — | 11 | ~1919 |
| John Bell | Head | — | 43 | ~1887 |
| William Bell | Son | — | 7 | ~1923 |
| Charles Bell | Son | — | 1 | ~1929 |
| Robert Bell | Son | — | ~1930 | |
| John Bell | Son | — | 18 | ~1912 |
| James Bell | Son | — | 15 | ~1915 |
| Lula Bell | Spouse | — | 39 | ~1891 |
Census Appearances
1930
Wayne, Michigan
Daughter, age 9
Wayne, Michigan · implied b. ~1921 — 11 household members
| Surname | Bell |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Michigan |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Can Read/Write | Yes |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1940
Wayne-County, Michigan
Daughter, age 19
Wayne-County, Michigan · implied b. ~1921 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Belli |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | Detroit City |
| 1935 Residence (County) | Wayne |
| Occupation | Handwriter |
| Industry | N.Y.A. |
| Class of Worker | GW |
| Hours Worked | 41 |
| Income (1939) | 161 |
| Highest Grade | Hs 3 |
| 1935 Residence | Same place |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
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 (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Bell
Daughter · 1930 · age 9 · b. ~1921 · Michigan
★ You are viewing this record
Sibling
Rosella Bell
Sibling · 1930 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Bell
Sibling · 1930 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Bell
Sibling · 1930 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Bell
Sibling · 1930 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Anna Bell
Sibling · 1930 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Bell
Sibling · 1930 · age
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charles Bell
Sibling · 1930 · age 1
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
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Wayne, Michigan
Open full size
1930 US Federal Census — Wayne, Michigan
Page Contents
50 people indexed on this census page (ia:1930:michigancensus00reel1031:0474)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Harold Hensel | 25 | Head | — | Michigan |
| 52 | Margaret Hensel | 2 | Daughter | — | Michigan |
| 53 | John Kovach | 22 | Head | Machinist | Pennsylvania |
| 54 | Helen Kovach | 16 | Wife | — | Kansas |
| 55 | John Kovach | 1 | Son | — | Michigan |
| 56 | James Dunn | 45 | Head | Laborer | Indiana |
| 57 | Mary Dunn | 43 | Wife | — | Indiana |
| 58 | Dorothy Dunn | 19 | Daughter | — | Indiana |
| 59 | Arthur Dunn | 26 | Son | Job Setter | United States |
| 60 | James Dunn | 15 | Son | — | Indiana |
| 61 | Thomas Dunn | 41 | Head | Grocer | Ireland |
| 62 | Annie Dunn | 37 | Wife | — | Ireland |
| 63 | Thomas Dunn | 14 | Son | Worker | Michigan |
| 64 | John Dunn | 12 | Son | — | Michigan |
| 65 | John Slovick | 51 | Head | Foreman | Jugo-Slavia |
| 66 | Mary Slovick | 45 | Wife | Truckman | Michigan |
| 67 | John Slovick | 15 | Son | Clerk | Michigan |
| 68 | Alice Slovick | 13 | Daughter | — | Michigan |
| 69 | Charles Slovick | 10 | Son | — | Michigan |
| 70 | John Bell | 43 | Head | Teamster | Kentucky |
| 71 | Lula Bell | 39 | Wife | — | Kentucky |
| 72 | Rosella Bell | 20 | Daughter | Servant | Michigan |
| 73 | John Bell | 18 | Son | — | Michigan |
| 74 | James Bell | 15 | Son | — | Michigan |
| 75 | Margaret Bell | 11 | Daughter | — | Michigan |
| 76 | Mary Bell THIS PERSON | 9 | Daughter | — | Michigan |
| 77 | William Bell | 7 | Son | — | Michigan |
| 78 | Anna Bell | 4 | Daughter | — | Michigan |
| 79 | Charles Bell | 1 | Son | — | Michigan |
| 80 | Robert Bell | 0 | Son | — | Michigan |
| 81 | Charles Dunn | 22 | Head | Machine Operator | United States |
| 82 | Alice Dunn | 19 | Wife | — | Michigan |
| 83 | Charles Dunn | 1 | Son | — | Michigan |
| 84 | James Dunn | 0 | Son | — | Michigan |
| 85 | Robert Dunn | 34 | Head | Laborer | Austria |
| 86 | Alice Dunn | 28 | Wife | — | Michigan |
| 87 | Robert Dunn | 1 | Son | — | Michigan |
| 88 | Frank Dunn | 29 | Head | Garage Work | Poland |
| 89 | Mary Dunn | 26 | Wife | — | Poland |
| 90 | Frank Dunn | 5 | Son | — | Michigan |
| 91 | John Dunn | 3 | Son | — | Michigan |
| 92 | Vincent Dunn | 1 | Son | — | Michigan |
| 93 | Arthur Dunn | 35 | Head | Machinist | England |
| 94 | Irene Dunn | 35 | Wife | — | England |
| 95 | Margaret Dunn | 9 | Daughter | — | Michigan |
| 96 | Arthur Dunn | 7 | Son | — | Michigan |
| 97 | James Dunn | 5 | Son | — | Michigan |
| 98 | Patricia Dunn | 2 | Daughter | — | Michigan |
| 99 | John Dunn | 23 | Head | Sprayer | Kansas |
| 100 | Mary Dunn | 21 | Wife | — | Michigan |
Related Census Records
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)