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John Knox — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Montgomery, Ohio
Our Model Tree links this John Knox across the 1920 and 1930 US Censuses in Montgomery, Ohio (XGBoost, ~Confirmed) — first a son (b.~1906), then head of a 7-person household.
Age 24
b. ~1906
Male
Son
Born: Ohio
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Montgomery, Ohio |
| Surname | Knox |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Additional Details | |
| Occupation | Truck driver |
| Industry | Contractor |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Occupation | Truck Driver |
| Township / Ward | Dayton City |
| Est. Birth Year | ~1906 |
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 John | Age | Birth yr |
|---|---|---|---|---|
| Charles Knox | Son | — | 10 | ~1920 |
| John Knox | Son | — | 24 | ~1906 |
| Edith Knox | Daughter | — | 18 | ~1912 |
| Betty Knox | Daughter | — | 9 | ~1921 |
| Margaret Knox | Daughter | — | 13 | ~1917 |
| Maud Knox | Spouse | — | 44 | ~1886 |
| Charles Knox | Head | — | 49 | ~1881 |
Census Appearances
1920
Montgomery, Ohio
Son, age 14
Montgomery, Ohio · implied b. ~1906 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Knox |
| Given Name | John Wm |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Occupation | errand boy |
| Industry | department store |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1930
Montgomery, Ohio
Son, age 24
Montgomery, Ohio · implied b. ~1906 — 7 household members
| Surname | Knox |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Occupation | Truck driver |
| Industry | Contractor |
| Class of Worker | W |
| Can Read/Write | Yes |
| 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 John Knox across 2 US Census years (1920 and 1930) in Montgomery, Ohio, using XGBoost record linkage.
Show:
This person
Anchor record
John Knox
Son · 1930 · age 24 · b. ~1906 · Ohio
★ You are viewing this record
Sibling
Edith Knox
Sibling · 1930 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charles Knox
Sibling · 1930 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Betty Knox
Sibling · 1930 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Knox
Sibling · 1930 · age 13
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 — Montgomery, Ohio
Open full size
1930 US Federal Census — Montgomery, Ohio
Page Contents
50 people indexed on this census page (ia:1930:ohiocensus00reel1855:0677)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Charles Deiveaux | 42 | Head | Machinist | Indiana |
| 2 | Olive Deiveaux | 39 | Wife | Solder | Indiana |
| 3 | Katherine Deiveaux | 15 | Daughter | — | Indiana |
| 4 | Fred Brush | 60 | Head | Teamster | Ohio |
| 5 | Evelyn Brush | 57 | Wife | — | Kentucky |
| 6 | Vernon Kidell | 39 | Stepson | Painter | Kentucky |
| 7 | Edward Box | 54 | Head | Waiter | Ohio |
| 8 | Lloyd Johnson | 54 | Boarder | Housework | Ohio |
| 9 | Charles Knox | 49 | Head | Truck Driver | Ohio |
| 10 | Maud Knox | 44 | Wife | — | Ohio |
| 11 | John Knox THIS PERSON | 24 | Son | Truck Driver | Ohio |
| 12 | Edith Knox | 18 | Daughter | — | Ohio |
| 13 | Margaret Knox | 13 | Daughter | — | Ohio |
| 14 | Charles Jr. Knox | 10 | Son | — | Ohio |
| 15 | Betty Knox | 9 | Daughter | — | Ohio |
| 16 | Chester Teiss | 39 | Head | Fireman | Ohio |
| 17 | Edith Teiss | 34 | Wife | — | Ohio |
| 18 | Ruth Teiss | 16 | Daughter | — | Ohio |
| 19 | Virginia Teiss | 14 | Daughter | — | Ohio |
| 20 | Martha Teiss | 10 | Daughter | — | Ohio |
| 21 | Edith Teiss | 6 | Daughter | — | Ohio |
| 22 | Caroline Hudner | 65 | Head | — | Ohio |
| 23 | Margaret Hudner | 62 | Sister | — | Ohio |
| 24 | Grant Oliver | 64 | Head | Laborer | Ohio |
| 25 | Elizabeth Oliver | 59 | Wife | — | Ohio |
| 26 | John Oliver | 39 | Son | Laborer | Ohio |
| 27 | David Trapp | 33 | Head | Mill Hand | Tennessee |
| 28 | Elsie Trapp | 30 | Wife | — | Ohio |
| 29 | Ruth Trapp | 2 | Daughter | — | Ohio |
| 30 | Jean Trapp | 1 | Daughter | — | Ohio |
| 31 | Walter Smith | 31 | Head | Laborer | Kentucky |
| 32 | Opha Smith | 28 | Wife | — | Kentucky |
| 33 | Chas. E. Smith | 3 | Son | — | Kentucky |
| 34 | Walter Jr. Smith | 2 | Son | — | Ohio |
| 35 | Joseph Smith | 0 | Son | — | Ohio |
| 36 | Loyd Lowder | 25 | Boarder | Operator | Kentucky |
| 37 | Claude Lowder | 21 | Boarder | Laborer | Kentucky |
| 38 | Harvey Northorn | 31 | Head | Laborer | Ohio |
| 39 | Vivian Northorn | 26 | Wife | Laborer | Ohio |
| 40 | Harvey Northorn | 8 | Son | — | Ohio |
| 41 | Vivian Northorn | 6 | Daughter | — | Ohio |
| 42 | Margery Northorn | 5 | Daughter | — | Ohio |
| 43 | Behula Northorn | 3 | Daughter | — | Ohio |
| 44 | Artie Hook | 32 | Boarder | Laborer | Ohio |
| 45 | Anthony Manta | 35 | Head | Fruit Merchant | Italy |
| 46 | Josephine Manta | 30 | Wife | — | Missouri |
| 47 | Thomas Manta | 10 | Son | — | Ohio |
| 48 | James Manta | 9 | Son | — | Ohio |
| 49 | Rose Ann Manta | 8 | Daughter | — | Ohio |
| 50 | Hiram Huffman | 48 | Head | Job Setter | 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)