RS
Roy Smith — 1930 US Census Record
Model Tree available1930 United States Federal Census · Miami, Ohio
Our Model Tree links this Roy Smith across the 1920, 1930 and 1940 US Censuses in Miami, Ohio (XGBoost, ~Confirmed), with identified parents Charles & Clara — first a son (b.~1908), then head of a 5-person household.
Age 22
b. ~1908
Male
Son
Born: Ohio
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Miami, Ohio |
| Surname | Smith |
| Given Name | Roy |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Married |
| Birthplace | Ohio |
| Age at First Marriage | 21 |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Additional Details | |
| Occupation | tire repairer |
| Industry | service station |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Occupation | Tire Repairer |
| Township / Ward | Catherine Heights |
| Est. Birth Year | ~1908 |
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.
5 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Roy | Age | Birth yr |
|---|---|---|---|---|
| Chas Smith | Head | — | 58 | ~1872 |
| Clara Smith | Other | — | 55 | ~1875 |
| Eunice Smith | Other | — | 20 | ~1910 |
| Herbert Smith | Son | — | 18 | ~1912 |
| Roy Smith | Son | — | 22 | ~1908 |
Census Appearances
1920
Miami, Ohio
Son, age 12
Miami, Ohio · implied b. ~1908 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Roy |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| 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
Miami, Ohio
Son, age 22
Miami, Ohio · implied b. ~1908 — 5 household members
| Surname | Smith |
| Given Name | Roy |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Married |
| Birthplace | Ohio |
| Age at First Marriage | 21 |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Occupation | tire repairer |
| Industry | service station |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Miami-County, Ohio
Head, age 33
Miami-County, Ohio · implied b. ~1907 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Ray |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Ohio |
| 1935 Residence (City) | Troy |
| 1935 Residence (County) | Miami |
| Occupation | Laborer |
| Industry | Light Plant |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 1152 |
| Highest Grade | No 8 |
| 1935 Residence | Same Place |
| 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 Roy Smith across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Charles Smith (~0.92 confidence) and mother Clara Smith (~0.92 confidence) and father Chas Smith (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Charles Smith
b. ~1847
Source father
● Household
· direct · ~0.92
Mother
Clara Smith
b. ~1848
Source mother
● Household
· direct · ~0.92
Father
Chas Smith
b. ~1872
Source father
● Household
· direct · ~0.92
This person
Anchor record
Roy Smith
Son · 1930 · age 22 · b. ~1908 · Ohio
★ You are viewing this record
Sibling
Herbert Smith
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 — Miami, Ohio
Open full size
1930 US Federal Census — Miami, Ohio
Page Contents
50 people indexed on this census page (ia:1930:ohiocensus00reel1849:0917)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Maude Rose | 44 | Wife-H | None | Ohio |
| 52 | Ralph L. Sutherland | 27 | Head | Plumber | Ohio |
| 53 | May Sutherland | 26 | Wife-H | None | Ohio |
| 54 | Marjorie J. Sutherland | 4 | daughter | None | Ohio |
| 55 | Donald V. Sutherland | 1 | son | None | Ohio |
| 56 | John E. Wilmoth | 38 | Head | Lineman | Virginia |
| 57 | Nellie Wilmoth | 34 | Wife-H | None | Ohio |
| 58 | Milton H. Wilmoth | 10 | son | None | Ohio |
| 59 | Glatus Bowers | 25 | Head | Punch Press | Ohio |
| 60 | Mabel Bowers | 19 | Wife-H | None | Ohio |
| 61 | Patsy J. Bowers | 0 | daughter | None | Ohio |
| 62 | Louis M. Zirkle | 29 | Head | Yard Man | Ohio |
| 63 | Nellie M. Zirkle | 26 | Wife-H | None | Ohio |
| 64 | Howard R. Zirkle | 5 | son | None | Ohio |
| 65 | Chas. Smith | 58 | Head | Baker | Ohio |
| 66 | Clara Smith | 55 | Wife-H | None | Ohio |
| 67 | Roy Smith THIS PERSON | 22 | son | Tire Repairer | Ohio |
| 68 | Eunice Smith | 20 | daughter-in-law | Seamstress | Ohio |
| 69 | Herbert Smith | 18 | son | Blue-Print Dept. | Ohio |
| 70 | Wilson Underwood | 30 | Head | Gen. Maint. | Ohio |
| 71 | Catherine Underwood | 25 | Wife-H | None | Ohio |
| 72 | Norma J. Underwood | 5 | daughter | None | Ohio |
| 73 | John Dordy | 61 | Head | None | Ohio |
| 74 | Alma Dordy | 30 | daughter | None | Ohio |
| 75 | Jennie Dordy | 56 | wife | Laundress | Ohio |
| 76 | Margaret Mumford | 10 | grand-daughter | None | Ohio |
| 77 | Helen U. Mumford | 9 | grand-daughter | None | Ohio |
| 78 | Robert C. Mumford | 8 | grand-son | None | Ohio |
| 79 | June E. Mumford | 6 | grand-daughter | None | Ohio |
| 80 | Elizabeth Hott | 23 | daughter | None | Ohio |
| 81 | Bertha Blackmore | 28 | daughter | None | Ohio |
| 82 | Dorothy L. Blackmore | 8 | grand-daughter | None | Ohio |
| 83 | Albert H. Dordy | 32 | son | Filer | Ohio |
| 84 | Chas. E. Dordy | 8 | grand-son | None | Ohio |
| 85 | Martin Wagner | 51 | Head | None | Ohio |
| 86 | W. D. Cree | 31 | Head | Assembler | Ohio |
| 87 | Isadora Cree | 29 | Wife-H | None | Ohio |
| 88 | Leallu Cree | 10 | daughter | None | Ohio |
| 89 | Velma Cree | 8 | daughter | None | Ohio |
| 90 | Donna Cree | 5 | daughter | None | Ohio |
| 91 | Cleola Cree | 3 | daughter | None | Ohio |
| 92 | James Wright | 38 | Head | Punch Press | Ohio |
| 93 | Thelma Wright | 18 | wife | None | Ohio |
| 94 | Venetta Wright | 14 | daughter | None | Ohio |
| 95 | Kenneth Wright | 10 | son | None | Ohio |
| 96 | Paul Wright | 9 | son | None | Ohio |
| 97 | Dorothy Wright | 8 | daughter | None | Ohio |
| 98 | Betty Wright | 6 | daughter | None | Ohio |
| 99 | Helen Wright | 5 | daughter | None | Ohio |
| 100 | Geo. Higgs | 42 | Head | Sheet-Metal Work | Virginia |
Pedigree Summary
Roy + 1 sibling
Gen 1 · 3 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)