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Jack Martin — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Comanche-County, Oklahoma
Our Model Tree links this Jack Martin across the 1930 and 1940 US Censuses in Comanche-County, Oklahoma (XGBoost, ~Confirmed) — first a son (b.~1919), then head of a 6-person household.
Age 21
b. ~1919
Male
Son
Born: Oklahoma
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Comanche-County, Oklahoma |
| Surname | Martin |
| Given Name | Jack A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Oklahoma |
| 1935 Residence (City) | Elgin Town |
| 1935 Residence (County) | Comanche |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | C 3 |
| 1935 Residence | Same place |
| Birth State | Oklahoma |
| Birth Country | United States |
| Birthplace (normalized) | oklahoma |
| Township / Ward | Elgin Town |
| Est. Birth Year | ~1919 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Jack | Age | Birth yr |
|---|---|---|---|---|
| Jack Martin | Son | — | 21 | ~1919 |
| Edwin Martin | Son | — | 18 | ~1922 |
| Sadie Martin | Spouse | — | 51 | ~1889 |
| Chesley Martin | Head | — | 50 | ~1890 |
| Marion Martin | Daughter | — | 19 | ~1921 |
| Eugenia Martin | Daughter | — | 15 | ~1925 |
Census Appearances
1930
Comanche, Oklahoma
Son, age 11
Comanche, Oklahoma · implied b. ~1919 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Jack |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Oklahoma |
| Father's Birthplace | South Carolina |
| Mother's Birthplace | North Carolina |
| Can Read/Write | Yes |
| Birth State | Oklahoma |
| Birth Country | United States |
| Birthplace (normalized) | oklahoma |
1940
Comanche-County, Oklahoma
Son, age 21
Comanche-County, Oklahoma · implied b. ~1919 — 6 household members
| Surname | Martin |
| Given Name | Jack A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Oklahoma |
| 1935 Residence (City) | Elgin Town |
| 1935 Residence (County) | Comanche |
| Class of Worker | 0 |
| Highest Grade | C 3 |
| 1935 Residence | Same place |
| Birth State | Oklahoma |
| Birth Country | United States |
| Birthplace (normalized) | oklahoma |
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 Jack Martin across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Jack Martin
Son · 1940 · age 21 · b. ~1919 · Oklahoma
★ You are viewing this record
Sibling
Edwin Martin
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Eugenia Martin
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Marion Martin
Sibling · 1940 · age 19
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 — Comanche-County, Oklahoma
Open full size
1940 US Federal Census — Comanche-County, Oklahoma
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03286-00130)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Wilma Lee Wigginton | 13 | Daughter | — | Oklahoma |
| 2 | Genevieve Wigginton | 11 | Daughter | — | Oklahoma |
| 3 | Ben F. Keeney | 31 | Head | Assistant Manager | Oklahoma |
| 4 | Lilleen F. Keeney | 24 | Wife | Seamstress | Oklahoma |
| 5 | Carl B. Wolcott | 24 | Head | Proprietor | Oklahoma |
| 6 | Lucille M. Wolcott | 21 | Wife | Cook | Oklahoma |
| 7 | Eugene H. Jenkins | 21 | Head | Laborer | Oklahoma |
| 8 | Maggie S. Jenkins | 18 | Wife | — | Oklahoma |
| 9 | Patricia Jenkins | 0 | Daughter | — | Oklahoma |
| 10 | Charles E. Barnett | 26 | Head | Concrete Finisher | Oklahoma |
| 11 | Lois D. Barnett | 24 | Wife | — | Oklahoma |
| 12 | Harold W. Barnett | 7 | Son | — | Oklahoma |
| 13 | Travis D. Barnett | 5 | Son | — | Oklahoma |
| 14 | Charles Leon Barnett | 3 | Son | — | Oklahoma |
| 15 | George M. Armstrong | 56 | Head | Laborer | Texas |
| 16 | Clara D. Armstrong | 52 | Wife | — | Texas |
| 17 | George A. Jr. Armstrong | 20 | Son | Assistant Cook | Oklahoma |
| 18 | Susan Davis | 81 | Mother-in-law | — | Missouri |
| 19 | King E. Mcneely | 45 | Head | Pastor | Texas |
| 20 | Willie Mcneely | 21 | Wife | — | Texas |
| 21 | Chesley M. Martin | 50 | Head | Medical Doctor | South Carolina |
| 22 | Sadie O. Martin | 51 | Wife | — | North Carolina |
| 23 | Jack A. Martin THIS PERSON | 21 | Son | — | Oklahoma |
| 24 | Marion A. Martin | 19 | Daughter | — | Oklahoma |
| 25 | Edwin P. Martin | 18 | Son | — | Oklahoma |
| 26 | Eugenia G. Martin | 15 | Daughter | — | Oklahoma |
| 27 | Charles S. Coffin | 54 | Head | Proprietor Of Garage | Iowa |
| 28 | Mary E. Coffin | 56 | Wife | Keeps Boarders | Illinois |
| 29 | Elizabeth G. Coffin | 20 | Daughter | — | Oklahoma |
| 30 | Darlene Ball | 26 | Boarder | Teacher | Oklahoma |
| 31 | Helen Stans | 25 | Boarder | Teacher | Oklahoma |
| 32 | Madeline Greefe | 21 | Boarder | Teacher | Oklahoma |
| 33 | James M. Pensley | 40 | Head | Night Watchman | North Carolina |
| 34 | Ruth Pensley | 33 | Wife | — | Texas |
| 35 | Alma Gene Pensley | 11 | Daughter | — | Oklahoma |
| 36 | Marion Lee Pensley | 6 | Daughter | — | Oklahoma |
| 37 | James D. Pensley | 2 | Son | — | Oklahoma |
| 38 | Arnold C. Lee | 21 | Head | Laborer | Oklahoma |
| 39 | Margie R. Lee | 18 | Wife | — | Oklahoma |
| 40 | Donald C. Lee | 1 | Son | — | Oklahoma |
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)