JM
John Martin — 1940 US Census Record
Model Tree available1940 United States Federal Census · Kenton-County, Kentucky
Our Model Tree links this John Martin across the 1920, 1930 and 1940 US Censuses in Kenton-County, Kentucky (XGBoost, ~Confirmed), with identified parents Thomas & Freda — first a son (b.~1914), then head of a 4-person household.
Age 26
b. ~1914
Male
Son
Born: Kentucky
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Kenton-County, Kentucky |
| Surname | Martin |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Kentucky |
| 1935 Residence (City) | Covington City |
| 1935 Residence (County) | Kenton |
| Additional Details | |
| Occupation | Signalman |
| Industry | Railroad |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 160 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same home |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
| Occupation | Signalman |
| Township / Ward | Covington City |
| Est. Birth Year | ~1914 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Thomas Martin | Head | — | 60 | ~1880 |
| John Martin | Son | — | 26 | ~1914 |
| William Martin | Son | — | 20 | ~1920 |
| Freda Martin | Spouse | — | 57 | ~1883 |
Census Appearances
1920
Kenton, Kentucky
Son, age 6
Kenton, Kentucky · implied b. ~1914 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Kentucky |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1930
Kenton, Kentucky
Son, age 16
Kenton, Kentucky · implied b. ~1914 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Kentucky |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Can Read/Write | Yes |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1940
Kenton-County, Kentucky
Son, age 26
Kenton-County, Kentucky · implied b. ~1914 — 4 household members
| Surname | Martin |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Kentucky |
| 1935 Residence (City) | Covington City |
| 1935 Residence (County) | Kenton |
| Occupation | Signalman |
| Industry | Railroad |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 160 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same home |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
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 Martin across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Thomas Martin (~0.92 confidence) and mother Freda Martin (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Thomas Martin
b. ~1880
Source father
● Household
· direct · ~0.92
Mother
Freda Martin
b. ~1883
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Martin
Son · 1940 · age 26 · b. ~1914 · Kentucky
★ You are viewing this record
Sibling
William Martin
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 — Kenton-County, Kentucky
Open full size
1940 US Federal Census — Kenton-County, Kentucky
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-01324-00407)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Chris Stickling | 48 | Head | Mechanic | Kentucky |
| 2 | Ivy Stickling | 46 | Wife | — | Kentucky |
| 3 | Loraine Stickling | 16 | Daughter | — | Kentucky |
| 4 | George W. Clark | 57 | Head | Bottler | Kentucky |
| 5 | Nancy Belle Clark | 53 | Wife | — | Kentucky |
| 6 | Dave Allen | 38 | Head | Machinist | Kentucky |
| 7 | Lona Allen | 29 | Wife | Factory | Kentucky |
| 8 | Kenneth Allen | 6 | Son | — | Kentucky |
| 9 | Worth S. Peters | 54 | Head | Minister | Indiana |
| 10 | Alma Ann Peters | 47 | Wife | — | Kentucky |
| 11 | Phillip Peters | 19 | Son | — | Kentucky |
| 12 | Janice Peters | 13 | Daughter | — | Kentucky |
| 13 | Barbara Stickling | 73 | Head | — | Ohio |
| 14 | Ralph Perry | 40 | Head | Mail Handler | Kentucky |
| 15 | Lillian Perry | 42 | Wife | — | Kentucky |
| 16 | Donald Perry | 8 | Son | — | Kentucky |
| 17 | Thomas J. Martin | 60 | Head | Salesman | Kentucky |
| 18 | Freda Martin | 57 | Wife | — | Kentucky |
| 19 | John Martin THIS PERSON | 26 | Son | Signalman | Kentucky |
| 20 | William Martin | 20 | Son | Clerk | Kentucky |
| 21 | Matthew Eichenlaub | 45 | Head | Messenger | Indiana |
| 22 | Madeline Eichenlaub | 26 | Wife | — | Kentucky |
| 23 | Mary Madeline Eichenlaub | 3 | Daughter | — | Ohio |
| 24 | Fannie Rothert | 56 | Head | — | Kentucky |
| 25 | Eugene Rothert | 25 | Son | Mail Carrier | Kentucky |
| 26 | George Rothert | 23 | Son | Banker | Kentucky |
| 27 | Thos C. Johnson | 56 | Head | Bus Driver | Kentucky |
| 28 | Lora Johnson | 56 | Wife | — | Kentucky |
| 29 | Thomas M. Johnson | 23 | Son | Mail Carrier | Kentucky |
| 30 | Hugh O'Hare | 42 | Head | Telegraph Opr | Georgia |
| 31 | Mary O'Hare | 41 | Wife | — | Ohio |
| 32 | Mary Jean O'Hare | 11 | Daughter | — | Kentucky |
| 33 | Carol O'Hare | 9 | Daughter | — | Kentucky |
| 34 | Everett Wilson | 34 | Head | Butcher | Kentucky |
| 35 | Marie Wilson | 33 | Wife | — | Kentucky |
| 36 | Mary Lou Wilson | 10 | Daughter | — | Ohio |
| 37 | Thomas Wilson | 7 | Son | — | Ohio |
| 38 | Robert Wilson | 5 | Son | — | Ohio |
| 39 | Lou Jaeger | 50 | Head | Clerk | Germany |
Pedigree Summary
John + 1 sibling
Gen 1 · 2 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)