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Kenneth Martin — 1940 US Census Record
Model Tree available1940 United States Federal Census · Hardin-County, Ohio
Our Model Tree links this Kenneth Martin across the 1920, 1930 and 1940 US Censuses in Hardin-County, Ohio (XGBoost, ~Confirmed), with identified parents William & William — first a son (b.~1913), then head of a 4-person household.
Age 27
b. ~1913
Male
Son
Born: Ohio
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Hardin-County, Ohio |
| Surname | Martin |
| Given Name | Kenneth |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Mt. Victory |
| 1935 Residence (County) | Hardin |
| Additional Details | |
| Occupation | Carpenter |
| Industry | Construction |
| Class of Worker | PW |
| Hours Worked | 54 |
| Income (1939) | 308 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Occupation | Carpenter |
| Township / Ward | Mt Victory |
| Est. Birth Year | ~1913 |
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 Kenneth | Age | Birth yr |
|---|---|---|---|---|
| Harvey Martin | Son | — | 31 | ~1909 |
| Kenneth Martin | Son | — | 27 | ~1913 |
| William Martin | Head | — | 58 | ~1882 |
| Mary Martin | Spouse | — | 55 | ~1885 |
Census Appearances
1920
Hardin, Ohio
Son, age 7
Hardin, Ohio · implied b. ~1913 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Kenneth W |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 7 |
| 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
Hardin, Ohio
Son, age 17
Hardin, Ohio · implied b. ~1913 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Kenneth M |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Hardin-County, Ohio
Son, age 27
Hardin-County, Ohio · implied b. ~1913 — 4 household members
| Surname | Martin |
| Given Name | Kenneth |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Mt. Victory |
| 1935 Residence (County) | Hardin |
| Occupation | Carpenter |
| Industry | Construction |
| Class of Worker | PW |
| Hours Worked | 54 |
| Income (1939) | 308 |
| Highest Grade | H 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 Kenneth Martin across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father William Martin (~0.92 confidence) and father William Martin (~0.92 confidence) and mother Mary Martin (~0.92 confidence) and mother Mary Martin (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
William Martin
b. ~1888
Source father
● Household
· direct · ~0.92
Father
William Martin
b. ~1882
Source father
● Household
· direct · ~0.92
Mother
Mary Martin
b. ~1885
Source mother
● Household
· direct · ~0.92
Mother
Mary Martin
b. ~1885
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Kenneth Martin
Son · 1940 · age 27 · b. ~1913 · Ohio
★ You are viewing this record
Sibling
Harvey Martin
Sibling · 1940 · age 31
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 — Hardin-County, Ohio
Open full size
1940 US Federal Census — Hardin-County, Ohio
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03082-00377)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Ward S. Shuster | 60 | Head | Barberry | Ohio |
| 42 | Merle E. Shuster | 41 | Wife | — | Ohio |
| 43 | Adelaide J. Shuster | 8 | Daughter | — | Ohio |
| 44 | Willis Glenn Shuster | 6 | Son | — | Ohio |
| 45 | William H. Welch | 59 | Lodger | Laborer | Ohio |
| 46 | James A. Beaty | 50 | Head | Painter & Decorator | Ohio |
| 47 | Ethel E. Beaty | 45 | Wife | — | Illinois |
| 48 | Martha A. Beaty | 64 | Mother | — | Germany |
| 49 | William H. Martin | 58 | Head | Manager | Ohio |
| 50 | Mary F. Martin | 55 | Wife | — | Ohio |
| 51 | Harvey F. Martin | 31 | Son | — | Ohio |
| 52 | Kenneth Martin THIS PERSON | 27 | Son | Carpenter | Ohio |
| 53 | Paul H. Wisecup | 35 | Head | Laborer | Ohio |
| 54 | Willia M. Wisecup | 34 | Wife | — | W. Va. |
| 55 | John Thomas Wisecup | 8 | Son | — | Ohio |
| 56 | Milton R. Wisecup | 4 | Son | — | Ohio |
| 57 | Margaret J. Wisecup | 0 | Daughter | — | Ohio |
| 58 | George W. Martin | 35 | Head | Operator | Ohio |
| 59 | Harold W. Moorhead | 24 | Head | Voc. Agri. Teacher | Ohio |
| 60 | Charlotte Moorhead | 27 | Wife | — | Ohio |
| 61 | Jane Ellen Moorhead | 1 | Daughter | — | Ohio |
| 62 | George W. Drumm | 80 | Head | — | Ohio |
| 63 | John Buckley | 82 | Lodger | — | Ohio |
| 64 | Martha D. Kreen | 82 | Head | — | Ohio |
| 65 | Eldridge R. Pennock | 34 | Grandson | — | Ohio |
| 66 | Earl L. James | 40 | Head | — | Ohio |
| 67 | Grace L. James | 33 | Wife | — | Ohio |
| 68 | Harold L. James | 15 | Son | — | Ohio |
| 69 | Delores M. James | 6 | Daughter | — | Ohio |
| 70 | Robert B. Congill | 78 | Head | Miller | Ind. |
| 71 | Orpha C. Congill | 74 | Wife | — | Ohio |
| 72 | Ethel S. Tepp | 55 | Daughter | Teacher | Ohio |
| 73 | Earl C. Tepp | 53 | Son | Book Keeper | Ohio |
| 74 | George H. Klinefelter | 53 | Head | Painter & Decorator | Ohio |
| 75 | Helen M. Klinefelter | 56 | Brother | — | Ohio |
| 76 | Jacob M. Klinefelter | 54 | Brother | — | Ohio |
| 77 | Howard Mccullough | 45 | Head | Truck Driver | Ohio |
| 78 | Pearl S. Mccullough | 42 | Wife | — | Ohio |
| 79 | Wilma Mccullough | 17 | Daughter | — | Ohio |
| 80 | Twila Jane Mccullough | 2 | Daughter | — | Ohio |
Pedigree Summary
Kenneth + 1 sibling
Gen 1 · 4 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)