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Hazel Martin — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Delaware, Ohio
Our Model Tree links this Hazel Martin across the 1920, 1930 and 1940 US Censuses in Delaware, Ohio (XGBoost, ~Confirmed) — first a head (b.~1892), then head of a 3-person household.
Age 38
b. ~1892
Female
Head
Born: Ohio
Widowed
1930 Census Record Details
| Census Year | 1930 |
| Location | Delaware, Ohio |
| Surname | Martin |
| Given Name | Hazel |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 38 |
| Marital Status | Widowed |
| Birthplace | Ohio |
| Age at First Marriage | 17 |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Additional Details | |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 1000 |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Township / Ward | Liberty Township |
| Est. Birth Year | ~1892 |
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 Hazel | Age | Birth yr |
|---|---|---|---|---|
| Hazel Martin | Head | — | 38 | ~1892 |
| Tillman Martin | Son | — | 15 | ~1915 |
| James Martin | Son | — | 18 | ~1912 |
Census Appearances
1920
Delaware, Ohio
Spouse, age 28
Delaware, Ohio · implied b. ~1892 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Hazel |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 28 |
| Marital Status | Married |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1930
Delaware, Ohio
Head, age 38
Delaware, Ohio · implied b. ~1892 — 3 household members
| Surname | Martin |
| Given Name | Hazel |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 38 |
| Marital Status | Widowed |
| Birthplace | Ohio |
| Age at First Marriage | 17 |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 1000 |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Delaware-County, Ohio
Other, age 48
Delaware-County, Ohio · implied b. ~1892 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Hazel |
| Relationship to Head | Employee |
| Sex | F |
| Color / Race | White |
| Age | 48 |
| Marital Status | Widowed |
| Birthplace | Ohio |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Delaware |
| Occupation | Laundry work |
| Industry | Hospital |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 480 |
| Highest Grade | H 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 Hazel Martin across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Hazel Martin
Head · 1930 · age 38 · b. ~1892 · 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 — Delaware, Ohio
Open full size
1930 US Federal Census — Delaware, Ohio
Page Contents
50 people indexed on this census page (ia:1930:ohiocensus00reel1790:0371)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Floyd Pratt | 20 | Head | Section Hand | Ohio |
| 2 | George Pratt | 16 | Son | — | Ohio |
| 3 | Dessie Pratt | 14 | Daughter | — | Ohio |
| 4 | Elberta Pratt | 12 | Daughter | — | Ohio |
| 5 | Jackie Pratt | 4 | Son | — | Ohio |
| 6 | Hamer Martin | 49 | Head | Pumper | Ohio |
| 7 | Ethel Martin | 40 | Wife | — | Ohio |
| 8 | Dorothy Martin | 5 | Daughter | — | Ohio |
| 9 | Marjorie Martin | 1 | Daughter | — | Ohio |
| 10 | Virgil Schofield | 21 | Head | Carpenter | Ohio |
| 11 | Pearl Schofield | 20 | Wife | — | Ohio |
| 12 | Elizabeth Martin | 80 | Head | — | Ohio |
| 13 | Elmer C. Williamson | 72 | Head | Manager | Ohio |
| 14 | Jennie A. Williamson | 66 | Wife | — | Ohio |
| 15 | Farley Mackey | 39 | Head | Carpenter | Ohio |
| 16 | Edna Mackey | 41 | Wife | — | Ohio |
| 17 | Verna Mackey | 3 | Daughter | — | Ohio |
| 18 | Hazel Martin THIS PERSON | 38 | Head | — | Ohio |
| 19 | James C. Martin | 18 | Son | Section Hand | Ohio |
| 20 | Tillman A. Martin | 15 | Son | — | Ohio |
| 21 | Robert E. Brust | 22 | Head | Farmer | Ohio |
| 22 | Ida C. Brust | 20 | Wife | — | Ohio |
| 23 | John L. Taylor | 65 | Head | Telegrapher Agent | Ohio |
| 24 | Bertha G. Taylor | 51 | Wife | — | Ohio |
| 25 | Vera Taylor | 29 | Daughter | Teacher | Ohio |
| 26 | John Taylor | 23 | Son | Telegrapher | Ohio |
| 27 | Janell Taylor | 18 | Daughter | — | Ohio |
| 28 | Morris Taylor | 15 | Son | — | Ohio |
| 29 | Floyd T. Krumm | 34 | Head | Shovel Operator | Ohio |
| 30 | Helen B. Krumm | 28 | Wife | — | Ohio |
| 31 | William H. Bander | 54 | Head | Laborer | Germany |
| 32 | Jessie C. Bander | 51 | Wife | — | Pennsylvania |
| 33 | Edna E. Bander | 16 | Daughter | — | Ohio |
| 34 | Mary E. Smith | 70 | Head | — | Ohio |
| 35 | Gertrude Smith | 58 | Daughter | — | Ohio |
| 36 | William Q. Lowry | 70 | Cousin | — | Ohio |
| 37 | Robert W. Williams | 56 | Head | Farmer | Yorkshire England |
| 38 | Martha B. Williams | 53 | Wife | — | Ohio |
| 39 | Elizabeth Baumgartner | 79 | Mother-in-law | — | Ohio |
| 40 | Daniel A. Green | 44 | Head | Farmer | Ohio |
| 41 | Irma Green | 46 | Wife | — | Ohio |
| 42 | Catherine Green | 17 | Daughter | — | Ohio |
| 43 | Otto Schmardt | 50 | Head | Farmer | Germany |
| 44 | Ida Schmardt | 58 | Wife | — | Germany |
| 45 | Gertrude Schmardt | 19 | Daughter | — | Germany |
| 46 | Anna Schmardt | 15 | Daughter | — | Ohio |
| 47 | Charles Waldorf | 61 | Head | Farmer | Ohio |
| 48 | Mary M. Waldorf | 56 | Wife | — | Ohio |
| 49 | Fred Waldorf | 31 | Son | Motorman | Ohio |
| 50 | Helen M. Waldorf | 28 | Daughter | Teacher | 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)