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Jack Martin — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Hopkins-County, Texas
Our Model Tree links this Jack Martin across the 1930 and 1940 US Censuses in Hopkins-County, Texas (XGBoost, ~Confirmed) — first a son (b.~1920), then head of a 9-person household.
Age 20
b. ~1920
Male
Son
Born: Texas
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Hopkins-County, Texas |
| Surname | Martin |
| Given Name | Jack |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Texas |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Hopkins |
| Additional Details | |
| Occupation | Laborer |
| Industry | Farm |
| Class of Worker | PW |
| Hours Worked | 12 |
| Income (1939) | 250 |
| Highest Grade | H 4 |
| 1935 Residence | Texas |
| Birth State | Texas |
| Birth Country | United States |
| Birthplace (normalized) | texas |
| Occupation | Laborer |
| Township / Ward | Pct No 5 |
| Est. Birth Year | ~1920 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Jack | Age | Birth yr |
|---|---|---|---|---|
| Mary Martin | Daughter | — | 6 | ~1934 |
| Earl Martin | Son | — | 10 | ~1930 |
| Jack Martin | Son | — | 20 | ~1920 |
| Merle Martin | Son | — | 13 | ~1927 |
| Lillie Martin | Spouse | — | 39 | ~1901 |
| Gilbert Martin | Head | — | 42 | ~1898 |
| Juanita Martin | Daughter | — | 8 | ~1932 |
| Cleon Martin | Daughter | — | 17 | ~1923 |
| J Martin | Son | — | 15 | ~1925 |
Census Appearances
1930
Hopkins, Texas
Son, age 9
Hopkins, Texas · implied b. ~1921 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Jack |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Texas |
| Father's Birthplace | Texas |
| Mother's Birthplace | Texas |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Texas |
| Birth Country | United States |
| Birthplace (normalized) | texas |
1940
Hopkins-County, Texas
Son, age 20
Hopkins-County, Texas · implied b. ~1920 — 9 household members
| Surname | Martin |
| Given Name | Jack |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Texas |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Hopkins |
| Occupation | Laborer |
| Industry | Farm |
| Class of Worker | PW |
| Hours Worked | 12 |
| Income (1939) | 250 |
| Highest Grade | H 4 |
| 1935 Residence | Texas |
| Birth State | Texas |
| Birth Country | United States |
| Birthplace (normalized) | texas |
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 20 · b. ~1920 · Texas
★ You are viewing this record
Sibling
Cleon Martin
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Juanita Martin
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Martin
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Earl Martin
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Merle Martin
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
J Martin
Sibling · 1940 · age 15
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 — Hopkins-County, Texas
Open full size
1940 US Federal Census — Hopkins-County, Texas
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-04068-00590)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Buel D Turner | 17 | Son | Newspaper Carrier | Texas |
| 2 | Merlon M Turner | 13 | Son | — | Texas |
| 3 | Billy J Turner | 7 | Son | — | Texas |
| 4 | Hilbert E Patterson | 55 | Head | Farmer | Tennessee |
| 5 | Birdie E Patterson | 50 | Wife | — | Alabama |
| 6 | Calvin E Patterson | 16 | Son | Farm Laborer | Texas |
| 7 | Alvin A Patterson | 16 | Son | Farm Laborer | Texas |
| 8 | Gene Ends Patterson | None | Raynolds | — | — |
| 9 | Hilbert Jr Patterson | 25 | Head | Farmer | Texas |
| 10 | Vera M Patterson | 22 | Wife | — | Texas |
| 11 | E Delbert Stevens | 36 | Head | Farmer | Texas |
| 12 | Irene B Stevens | 30 | Wife | — | Texas |
| 13 | Rayford L Stevens | 6 | Son | — | Texas |
| 14 | Wendell D Stevens | 4 | Son | — | Texas |
| 15 | James V Stevens | 2 | Son | — | Texas |
| 16 | Herlo Ends Stevens | None | Raynolds | — | — |
| 17 | Gilbert Martin | 42 | Head | Farmer | Texas |
| 18 | Lillie B Martin | 39 | Wife | — | Texas |
| 19 | Jack Martin THIS PERSON | 20 | Son | Laborer | Texas |
| 20 | Cleon F Martin | 17 | Daughter | — | Texas |
| 21 | J. A. Martin | 15 | Son | — | Texas |
| 22 | Merle Martin | 13 | Son | — | Texas |
| 23 | Earl W Martin | 10 | Son | — | Texas |
| 24 | Juanita J Martin | 8 | Daughter | — | Texas |
| 25 | Mary A Martin | 6 | Daughter | — | Texas |
| 26 | Sterling S Smith | 63 | Head | — | Texas |
| 27 | Mattie G Smith | 55 | Wife | — | Tennessee |
| 28 | Leon S Smith | 16 | Son | — | Texas |
| 29 | Truett Hamrick | 26 | Head | Farmer | Texas |
| 30 | Era Hamrick | 25 | Wife | — | Texas |
| 31 | David E Hamrick | 3 | Son | — | Texas |
| 32 | Betty A Hamrick | 1 | Daughter | — | Texas |
| 33 | Warly L Simpson | 52 | Head | Farmer | Texas |
| 34 | Beulah A Simpson | 43 | Wife | — | Texas |
| 35 | Cathelia P Simpson | 20 | Daughter | — | Texas |
| 36 | J. A. Simpson | 17 | Son | — | Texas |
| 37 | R Dempsey Simpson | 11 | Son | — | Texas |
| 38 | Bernita S Simpson | 8 | Daughter | — | Texas |
| 39 | Sherry L Simpson | 5 | Daughter | — | Texas |
| 40 | Here Ends Simpson | None | Bannister | — | — |
Related Census Records
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)