CM
Carl Martin — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Knox, Ohio
Our Model Tree links this Carl Martin across the 1920 and 1930 US Censuses in Knox, Ohio (XGBoost, ~Confirmed) — first a son (b.~1920), then head of a 7-person household.
Age 10
b. ~1920
Male
Son
Born: Ohio
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Knox, Ohio |
| Surname | Martin |
| Given Name | Carl Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Utah |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Township / Ward | Clinton Township |
| Est. Birth Year | ~1920 |
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.
7 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Carl | Age | Birth yr |
|---|---|---|---|---|
| Carl Martin | Son | — | 10 | ~1920 |
| Betty Martin | Daughter | — | 6 | ~1924 |
| Annie Martin | Daughter | — | 9 | ~1921 |
| Bertha Martin | Other | — | 37 | ~1893 |
| Glenn Martin | Son | — | 3 | ~1927 |
| Dorothy Martin | Daughter | — | 12 | ~1918 |
| Carl Martin | Head | — | 39 | ~1891 |
Census Appearances
1920
Knox, Ohio
Son, age
Knox, Ohio · implied b. ~1920 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Carl Jr. |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Utah |
| Class of Worker | none |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1930
Knox, Ohio
Son, age 10
Knox, Ohio · implied b. ~1920 — 7 household members
| Surname | Martin |
| Given Name | Carl Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Utah |
| Can Read/Write | Yes |
| 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 Carl Martin across 2 US Census years (1920 and 1930) in Knox, Ohio, using XGBoost record linkage.
Show:
This person
Anchor record
Carl Martin
Son · 1930 · age 10 · b. ~1920 · Ohio
★ You are viewing this record
Sibling
Annie Martin
Sibling · 1930 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Glenn Martin
Sibling · 1930 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Martin
Sibling · 1930 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Betty Martin
Sibling · 1930 · age 6
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 — Knox, Ohio
Open full size
1930 US Federal Census — Knox, Ohio
Page Contents
50 people indexed on this census page (ia:1930:ohiocensus00reel1826:0216)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Lera Baker | 28 | Wife-H | — | Ohio |
| 52 | George Baker | 3 | Son | — | Ohio |
| 53 | Frank Cowan | 34 | Head | Machinist | Ohio |
| 54 | Iva Cowan | 26 | Wife-H | — | Ohio |
| 55 | Cheryl J. Cowan | 5 | Daughter | — | Ohio |
| 56 | Ella Baldwin | 55 | Head | — | Ohio |
| 57 | Charles Kurn | 48 | Head | Cutter | New York |
| 58 | Lillie Kurn | 50 | Wife-H | — | Pennsylvania |
| 59 | J. P. Graybill | 51 | Head | Laborer | Pennsylvania |
| 60 | Mary Graybill | 48 | Wife-H | — | Pennsylvania |
| 61 | George Lutter | 16 | Niece | — | Pennsylvania |
| 62 | Walter Thomas | 49 | Head | Laborer | Ohio |
| 63 | Rena Thomas | 45 | Wife-H | — | Ohio |
| 64 | Bernice Thomas | 25 | Daughter | — | Ohio |
| 65 | Ches. Thomas | 14 | Son | — | Ohio |
| 66 | W. D. Saunders | 47 | Head | Laborer | Old Virginia |
| 67 | Allie Saunders | 43 | Wife-H | — | West Virginia |
| 68 | Cora Saunders | 11 | Daughter | — | West Virginia |
| 69 | Allie Saunders | 9 | Daughter | — | West Virginia |
| 70 | Richard Saunders | 7 | Son | — | West Virginia |
| 71 | Carl Crawford | 23 | Head | Laborer | Ohio |
| 72 | Opal Crawford | 25 | Wife-H | — | Ohio |
| 73 | William Crawford | 1 | Son | — | Ohio |
| 74 | Carl Martin | 39 | Head | Pipe Fitter | Ohio |
| 75 | Bertha Martin | 37 | Wife-H | — | Utah |
| 76 | Dorothy Martin | 12 | Daughter | — | Ohio |
| 77 | Carl Jr. Martin THIS PERSON | 10 | Son | — | Ohio |
| 78 | Annie M. Martin | 9 | Daughter | — | Ohio |
| 79 | Betty Martin | 6 | Daughter | — | Ohio |
| 80 | Glenn Martin | 3 | Son | — | Ohio |
| 81 | Caroline Fuelule | 77 | Head-H | — | Belgium |
| 82 | Louis Fuelule | 45 | Son | Laborer | Belgium |
| 83 | Ches Christopher | 41 | Head | Machinist | Ohio |
| 84 | Ida Christopher | 38 | Wife-H | — | Ohio |
| 85 | John Christopher | 18 | Son | — | Ohio |
| 86 | Mary Christopher | 16 | Daughter | — | Ohio |
| 87 | Merle Christopher | 14 | Son | — | Ohio |
| 88 | James Christopher | 12 | Son | — | Ohio |
| 89 | Thelma Christopher | 7 | Daughter | — | Ohio |
| 90 | Virginia Christopher | 3 | Daughter | — | Ohio |
| 91 | F. J. Sperling | 57 | Head | Carpenter | Kentucky |
| 92 | Virgie Sperling | 50 | Wife-H | — | Kentucky |
| 93 | George Bishop | 54 | Head | Machinist | Ohio |
| 94 | Rosie Bishop | 57 | Wife-H | — | Ohio |
| 95 | Phoebe Bishop | 85 | Mother | — | Ohio |
| 96 | Chas. Wise | 34 | Head | Electrician | Kentucky |
| 97 | Hattie Wise | 35 | Wife-H | — | Ohio |
| 98 | Chas. K. Wise | 2 | Son | — | Ohio |
| 99 | Ella Kerr | 66 | Mother | Nurse | Ohio |
| 100 | Norma Long | 17 | Lodger | — | 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)