JK
John Knox — 1940 US Census Record
Model Tree available1940 United States Federal Census · Hamilton-County, Ohio
Our Model Tree links this John Knox across the 1920, 1930 and 1940 US Censuses in Hamilton-County, Ohio (XGBoost, ~Confirmed), with identified parents J & John — first a son (b.~1918), then head of a 5-person household.
Age 22
b. ~1918
Male
Son
Born: Ohio
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Hamilton-County, Ohio |
| Surname | KNOX |
| Given Name | JOHN E Jr |
| Relationship to Head | SON |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | MT. HEALTHY Village |
| 1935 Residence (County) | HAMILTON |
| Additional Details | |
| Occupation | SHEET METAL WORKER |
| Industry | SHEET METAL INSTALLATION FIRM |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 250 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Occupation | Sheet Metal Worker |
| Township / Ward | Mt Healthy Village |
| Est. Birth Year | ~1918 |
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 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| John Knox | Son | — | 22 | ~1918 |
| Margaret Knox | Daughter | — | 20 | ~1920 |
| Ella Knox | Spouse | — | 49 | ~1891 |
| Catherine Knox | Daughter | — | 9 | ~1931 |
| John Knox | Head | — | 51 | ~1889 |
Census Appearances
1920
Hamilton, Ohio
Son, age 2
Hamilton, Ohio · implied b. ~1918 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Knox |
| Given Name | John Earl |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1930
Hamilton, Ohio
Son, age 12
Hamilton, Ohio · implied b. ~1918 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Knox |
| Given Name | John E. |
| 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/Write | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Hamilton-County, Ohio
Son, age 22
Hamilton-County, Ohio · implied b. ~1918 — 5 household members
| Surname | KNOX |
| Given Name | JOHN E Jr |
| Relationship to Head | SON |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | MT. HEALTHY Village |
| 1935 Residence (County) | HAMILTON |
| Occupation | SHEET METAL WORKER |
| Industry | SHEET METAL INSTALLATION FIRM |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 250 |
| Highest Grade | Hs 4 |
| 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 John Knox across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father J Knox (~0.92 confidence) and father John Knox (~0.92 confidence) and father John Knox (~0.92 confidence) and mother Edith Knox (~0.92 confidence) and mother Ella Knox (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
J Knox
b. ~1889
Source father
● Household
· direct · ~0.92
Father
John Knox
b. ~1889
Source father
● Household
· direct · ~0.92
Father
John Knox
b. ~1889
Source father
● Household
· direct · ~0.92
Mother
Edith Knox
b. ~1891
Source mother
● Household
· direct · ~0.92
Mother
Ella Knox
b. ~1891
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Knox
Son · 1940 · age 22 · b. ~1918 · Ohio
★ You are viewing this record
Sibling
Catherine Knox
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Knox
Sibling · 1940 · age 20
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
1940 US Federal Census — Hamilton-County, Ohio
Open full size
1940 US Federal Census — Hamilton-County, Ohio
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03079-00603)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Dorothy M Bushman | 22 | Daughter-in-law | — | Ohio |
| 2 | Henry J Stoeppel | 48 | HEAD | Bricklayer | Ohio |
| 3 | Carrie K Stoeppel | 47 | WIFE | — | Ohio |
| 4 | Henry G Stoeppel | 22 | SON | — | Ohio |
| 5 | John Wintering | 62 | HEAD | — | Ohio |
| 6 | Lillian Wintering | 12 | Granddaughter | — | Ohio |
| 7 | Edward A. L. Bauer | 58 | HEAD | Accountant | Ohio |
| 8 | Marie C Bauer | 37 | WIFE | — | Ohio |
| 9 | Mary J Bauer | 14 | Daughter | — | Ohio |
| 10 | Yvonne R Bauer | 12 | Daughter | — | Ohio |
| 11 | Thelma M Bauer | 10 | Daughter | — | Ohio |
| 12 | Sylvia A Bauer | 9 | Daughter | — | Ohio |
| 13 | Thomas E Bauer | 6 | Son | — | Ohio |
| 14 | Anna Bauer | 73 | Mother-in-law | — | Ohio |
| 15 | John E Knox | 51 | HEAD | Owner | Ohio |
| 16 | Ella N Knox | 49 | WIFE | — | Ohio |
| 17 | John E Jr Knox THIS PERSON | 22 | SON | Sheet Metal Worker | Ohio |
| 18 | Margaret E Knox | 20 | Daughter | — | Ohio |
| 19 | Catherine M Knox | 9 | Daughter | — | Ohio |
| 20 | John S Pomfrey | 33 | HEAD | Asst Chief Clerk | Ohio |
| 21 | Elizabeth J Pomfrey | 32 | WIFE | Tailoress | Ohio |
| 22 | Rita C Pomfrey | 12 | Daughter | — | Ohio |
| 23 | Melvin R Pomfrey | 2 | Son | — | Ohio |
| 24 | Marvin W Pomfrey | 2 | Son | — | Ohio |
| 25 | William M Koehler | 66 | HEAD | Tailor | Ohio |
| 26 | Josephine Koehler | 65 | WIFE | — | Ohio |
| 27 | Helen J Koehler | 42 | DAUGHTER | — | Ohio |
| 28 | Cecilia M Nelson | 40 | DAUGHTER | Tailoress | Ohio |
| 29 | Wilford C Nelson | 13 | GRANDSON | — | Ohio |
| 30 | Henry J Sterwerf | 28 | HEAD | Barrel Filer | Ohio |
| 31 | Margaret-A Sterwerf | 23 | WIFE | — | Kentucky |
| 32 | Joseph J Sterwerf | 3 | SON | — | Ohio |
| 33 | Mary Ann Sterwerf | 1 | Daughter | — | Ohio |
| 34 | Henry R Sterwerf | 0 | SON | — | Ohio |
| 35 | Charles P Burgess | 44 | HEAD | Truck Driver | KENTUCKY |
| 36 | Gertrude K Burgess | 43 | WIFE | — | Ohio |
| 37 | Eleanor K Burgess | 22 | DAUGHTER | Bookkeeper New Worker | Ohio |
| 38 | Charles J Burgess | 15 | SON | — | Ohio |
| 39 | George J Rumpf | 45 | HEAD | Maintainence | Ohio |
| 40 | Freda R Rumpf | 38 | WIFE | — | Ohio |
Pedigree Summary
John + 2 siblings
Gen 1 · 5 parents
~0.92
Max depth 4 (1900–1950 window)
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1940 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)