MA
Mary Alexander — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Darke, Ohio
Our Model Tree links this Mary Alexander across the 1900, 1910, 1920 and 1930 US Censuses in Darke, Ohio (XGBoost, ~Confirmed) — first a head (b.~1856), then head of a 3-person household.
Age 74
b. ~1856
Female
Head
Born: Ohio
Widowed
1930 Census Record Details
| Census Year | 1930 |
| Location | Darke, Ohio |
| Surname | Alexander |
| Given Name | Mary A. |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 74 |
| Marital Status | Widowed |
| Birthplace | Ohio |
| Age at First Marriage | 25 |
| Father's Birthplace | France |
| Mother's Birthplace | France |
| Additional Details | |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 600 |
| Veteran | No |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Township / Ward | Village North Star Ohio |
| Est. Birth Year | ~1856 |
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 Alexander | Head | — | 74 | ~1856 |
| Lester Lambert | Other | — | 20 | ~1910 |
| Leo Alexander | Son | — | 44 | ~1886 |
Census Appearances
Head, age 45
Darke, Ohio · implied b. ~1855 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Alexander |
| Given Name | Margaret |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 44 |
| Marital Status | Widowed |
| Birthplace | Ohio |
| Birth Month | Dec |
| Birth Year | 1855 |
| Father's Birthplace | France |
| Mother's Birthplace | France |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1910
Darke, Ohio
Head, age 54
Darke, Ohio · implied b. ~1856
●
Primary link
· ~Confirmed · 1 source
XGBoost
| Surname | Alexander |
| Given Name | Mary A. |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 54 |
| Marital Status | Widowed |
| Birthplace | Ohio |
| Children Born | 2 |
| Children Living | 2 |
| Father's Birthplace | France |
| Mother's Birthplace | France |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1920
Darke, Ohio
Head, age 64
Darke, Ohio · implied b. ~1856 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Alexander |
| Given Name | Mary A. |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 64 |
| Marital Status | Widowed |
| Birthplace | Ohio |
| Father's Birthplace | France |
| Mother's Birthplace | France |
| Home Owned/Rented | O |
| Home Free/Mortgaged | F |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1930
Darke, Ohio
Head, age 74
Darke, Ohio · implied b. ~1856 — 3 household members
| Surname | Alexander |
| Given Name | Mary A. |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 74 |
| Marital Status | Widowed |
| Birthplace | Ohio |
| Age at First Marriage | 25 |
| Father's Birthplace | France |
| Mother's Birthplace | France |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 600 |
| Veteran | No |
| 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 Alexander across 4 US Census years (1900, 1910, 1920 and 1930) in Darke, Ohio, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Alexander
Head · 1930 · age 74 · b. ~1856 · Ohio
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Darke, Ohio
Open full size
1930 US Federal Census — Darke, Ohio
Page Contents
50 people indexed on this census page (ia:1930:ohiocensus00reel1789:0524)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Katie Alexander | 69 | Head | Contractor | Ohio |
| 2 | Catherine Alexander | 60 | Sister | — | Ohio |
| 3 | Alice Alexander | 37 | Niece | Proprietor | Ohio |
| 4 | Thelma Alexander | 19 | Niece | — | Ohio |
| 5 | Stella Davit | 34 | Daughter | Post Mistress | Ohio |
| 6 | Cecelia Davit | 14 | Daughter | — | Ohio |
| 7 | Loretta Davit | 12 | Daughter | — | Ohio |
| 8 | Robert Davit | 10 | Son | — | Ohio |
| 9 | John B. Grilliot | 70 | Head | — | Ohio |
| 10 | Jennie W. Grilliot | 29 | Daughter | — | Ohio |
| 11 | Teresa Grilliot | 20 | Daughter | — | Ohio |
| 12 | Joseph Grilliot | 70 | Head | — | Ohio |
| 13 | Emma E. Grilliot | 66 | Wife | — | Ohio |
| 14 | Jacob Barga | 68 | Head | — | Ohio |
| 15 | Mary Barga | 68 | Wife | — | Ohio |
| 16 | Cletis Barga | 33 | Son | Laborer | Ohio |
| 17 | John Sherrets | 71 | Head | Laborer | Ohio |
| 18 | Hattie Sherrets | 70 | Wife | — | Ohio |
| 19 | Mary A. Alexander THIS PERSON | 74 | Head | — | Ohio |
| 20 | Leo J. Alexander | 44 | Son | Cream | Ohio |
| 21 | Lester Lambert | 20 | Boarder | Bookkeeper | Ohio |
| 22 | John W. Hartzel | 59 | Head | Solicitor | Ohio |
| 23 | Emma Hartzel | 58 | Wife | — | Ohio |
| 24 | Clarence Voisard | 29 | Head | Proprietor | Ohio |
| 25 | Bertha Voisard | 30 | Wife | — | Ohio |
| 26 | George Voisard | 2 | Son | — | Ohio |
| 27 | Irvin Voisard | 1 | Son | — | Ohio |
| 28 | Joseph Voisard | 0 | Son | — | Ohio |
| 29 | Charles Grilliot | 64 | Head | — | Ohio |
| 30 | Ellen Grilliot | 62 | Wife | — | Ohio |
| 31 | Frank George | 63 | Head | — | Ohio |
| 32 | Mary George | 65 | Wife | — | Ohio |
| 33 | Eugene George | 24 | Son | Teacher | Ohio |
| 34 | John Mcfarland | 32 | Son in law | Proprietor | Ohio |
| 35 | Josephine Mcfarland | 26 | Daughter | Cook | Ohio |
| 36 | Garlic Brown | 39 | Head | Teacher | Ohio |
| 37 | Lydia Brown | 35 | Wife | — | Ohio |
| 38 | Treeda Brown | 13 | Daughter | — | Ohio |
| 39 | Eileen Brown | 11 | Daughter | — | Ohio |
| 40 | Jeanette Brown | 9 | Daughter | — | Ohio |
| 41 | Marilyn Brown | 7 | Daughter | — | Ohio |
| 42 | Lenord F. Sink | 53 | Head | Proprietor | Ohio |
| 43 | Idalia I. Sink | 48 | Wife | — | Ohio |
| 44 | Robert E. Sink | 21 | Son | Clerk | Ohio |
| 45 | Elmira Hartzel | 78 | Mother | — | Ohio |
| 46 | Louis J. George | 56 | Head | — | Ohio |
| 47 | Catherine George | 55 | Wife | — | Ohio |
| 48 | Grover George | 37 | Head | Laborer | Ohio |
| 49 | Golda George | 35 | Wife | — | Ohio |
| 50 | Lucille George | 14 | Daughter | — | Ohio |
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)