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Mary Bell — 1930 US Census Record
Model Tree available1930 United States Federal Census · Carroll, Maryland
Our Model Tree links this Mary Bell across the 1910, 1920 and 1930 US Censuses in Carroll, Maryland (XGBoost, ~Confirmed), with identified parents William & William — first a daughter (b.~1909), then head of a 3-person household.
Age 21
b. ~1909
Female
Daughter
Born: Maryland
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Carroll, Maryland |
| Surname | Bell |
| Given Name | Mary A. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Township / Ward | Westminster District |
| 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.
3 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 |
| William Bell | Head | — | 51 | ~1879 |
| Martha Bell | Spouse | — | 60 | ~1870 |
Census Appearances
1910
Carroll, Maryland
Daughter, age 1
Carroll, Maryland · implied b. ~1909 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Bell |
| Given Name | Mary A |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1920
Carroll, Maryland
Daughter, age 11
Carroll, Maryland · implied b. ~1909 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Bell |
| Given Name | Mary A |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1930
Carroll, Maryland
Daughter, age 21
Carroll, Maryland · implied b. ~1909 — 3 household members
| Surname | Bell |
| Given Name | Mary A. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Can Read/Write | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
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 3 US Census years (1910, 1920 and 1930) in Carroll, Maryland, using XGBoost record linkage. Identified parents: father William Bell (~0.92 confidence) and father William Bell (~0.92 confidence) and father William Bell (~0.92 confidence) and mother Martha Bell (~0.92 confidence) and mother Martha Bell (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
William Bell
b. ~1879
Source father
● Household
· direct · ~0.92
Father
William Bell
b. ~1876
Source father
● Household
· direct · ~0.92
Father
William Bell
b. ~1879
Source father
● Household
· direct · ~0.92
Mother
Martha Bell
b. ~1870
Source mother
● Household
· direct · ~0.92
Mother
Martha Bell
b. ~1870
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Bell
Daughter · 1930 · age 21 · b. ~1909 · Maryland
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Carroll, Maryland
Open full size
1930 US Federal Census — Carroll, Maryland
Page Contents
50 people indexed on this census page (ia:1930:15thcensus872unit:0476)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Katherine E. | 16 | Daughter | — | Maryland |
| 2 | Lillian M. | 14 | Daughter | — | Maryland |
| 3 | Audrey E. | 12 | Daughter | — | Maryland |
| 4 | Charles D. | 11 | Son | — | Maryland |
| 5 | Irvin L. Hunter | 49 | Head | Farmer | Maryland |
| 6 | Alice G. Hunter | 45 | Wife | — | Maryland |
| 7 | Ruth G. Hunter | 22 | Daughter | Seamstress | Maryland |
| 8 | Mary G. Hunter | 21 | Daughter | — | Maryland |
| 9 | Carroll Nuschiene | 42 | Head | Farmer | Maryland |
| 10 | Jessie G. Nuschiene | 42 | Wife | — | Maryland |
| 11 | Edna Leese | 35 | In-law | Seamstress | Maryland |
| 12 | Esther Leese | 9 | Niece | — | Maryland |
| 13 | Albert R. Nuschiene | 23 | Head | Laborer | Maryland |
| 14 | Ethel B. Nuschiene | 19 | Wife | Seamstress | Maryland |
| 15 | Russell E. Nuschiene | 0 | Son | — | Maryland |
| 16 | John F. Garner | 57 | Head | Farmer | Maryland |
| 17 | Lydia M. Garner | 58 | Wife | — | Pennsylvania |
| 18 | Sterling Garner | 20 | Son | Laborer | Maryland |
| 19 | Rachael H. Garner | 18 | Daughter | — | Maryland |
| 20 | Charles E. Thompson | 37 | Head | Mechanic | Maryland |
| 21 | Emma Thompson | 38 | Wife | — | Maryland |
| 22 | Cora G. Thompson | 17 | Daughter | — | Maryland |
| 23 | Ida M. Thompson | 8 | Daughter | — | Maryland |
| 24 | James E. Ballman | 52 | Head | Brakeman | Maryland |
| 25 | Caroline B. Ballman | 50 | Wife | — | Maryland |
| 26 | Eleanor E. Ballman | 18 | Daughter | — | Maryland |
| 27 | Alice H. Ballman | 16 | Son | — | Maryland |
| 28 | Guy H. Leister | 51 | Head | Farmer | Maryland |
| 29 | Helen S. Leister | 34 | Wife | — | Pennsylvania |
| 30 | Payne Leister | 23 | Son | Laborer | Maryland |
| 31 | Kenneth S. Leister | 7 | Son | — | Maryland |
| 32 | Charlotte M. Leister | 6 | Daughter | — | Maryland |
| 33 | Donald K. Leister | 2 | Son | — | Maryland |
| 34 | Charlotte Leister | 78 | Mother | — | Pennsylvania |
| 35 | John H. Sugars | 53 | Boarder | Laborer | Maryland |
| 36 | Ruth V. Leister | 15 | Boarder | — | Ohio |
| 37 | Samuel J. Marshall | 58 | Head | Farmer | Maryland |
| 38 | Ivy M. Marshall | 46 | Wife | — | Maryland |
| 39 | Marie V. Wisner | 20 | Daughter | — | Maryland |
| 40 | Robert J. Wisner | 33 | Son-in-law | Laborer | Maryland |
| 41 | Howard R. Wisner | 0 | Grandson | — | Maryland |
| 42 | Joseph R. Wood | 15 | Helper | Laborer | Maryland |
| 43 | William F. Bell | 51 | Head | Machinist | Maryland |
| 44 | Martha J. Bell | 60 | Wife | — | Maryland |
| 45 | Mary A. Bell THIS PERSON | 21 | Daughter | — | Maryland |
| 46 | Edward A. Cassell | 63 | Head | Clerk | Maryland |
| 47 | Jessie G. Cassell | 48 | Wife | — | Maryland |
| 48 | Michael M. Fretter | 51 | Head | Farmer | Illinois |
| 49 | May G. Fretter | 44 | Wife | — | Wisconsin |
| 50 | Maurice S. Dutterer | 40 | Head | Farmer | Maryland |
Pedigree Summary
Mary
Gen 1 · 5 parents
~0.92
Max depth 4 (1900–1950 window)
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)