RM
Robert Martin — 1940 US Census Record
Model Tree available1940 United States Federal Census · Hot-Spring-County, Arkansas
Our Model Tree links this Robert Martin across the 1920, 1930 and 1940 US Censuses in Hot-Spring-County, Arkansas (XGBoost, ~Confirmed), with identified parents Luke & Luke — first a head (b.~1919), then head of a 3-person household.
Age 21
b. ~1919
Male
Head
Born: Arkansas
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Hot-Spring-County, Arkansas |
| Surname | Martin |
| Given Name | Robert |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Married |
| Birthplace | Arkansas |
| 1935 Residence (City) | Montgomery Twp |
| 1935 Residence (County) | Hot Spring |
| Additional Details | |
| Occupation | Farmer |
| Industry | Rented Farm |
| Class of Worker | OA |
| Hours Worked | 48 |
| Income (1939) | 0 |
| Highest Grade | G 6 |
| 1935 Residence | Same place |
| Birth State | Arkansas |
| Birth Country | United States |
| Birthplace (normalized) | arkansas |
| Occupation | Farmer |
| Township / Ward | Montgomery Twp |
| 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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Robert Martin | Head | — | 21 | ~1919 |
| Marvin Martin | Son | — | 2 | ~1938 |
| Myrtle Martin | Spouse | — | 22 | ~1918 |
Census Appearances
1920
Hot Spring, …
Son, age 1
Hot Spring, Arkansas · implied b. ~1919 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Arkansas |
| Father's Birthplace | Georgia |
| Mother's Birthplace | Georgia |
| Speaks English | Yes |
| Birth State | Arkansas |
| Birth Country | United States |
| Birthplace (normalized) | arkansas |
1930
Hot Spring, …
Son, age 12
Hot Spring, Arkansas · implied b. ~1918 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Arkansas |
| Father's Birthplace | Georgia |
| Mother's Birthplace | Georgia |
| Occupation | Laborer |
| Industry | Farm |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Arkansas |
| Birth Country | United States |
| Birthplace (normalized) | arkansas |
1940
Hot-Spring-County, Arkansas
Head, age 21
Hot-Spring-County, Arkansas · implied b. ~1919 — 3 household members
| Surname | Martin |
| Given Name | Robert |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Married |
| Birthplace | Arkansas |
| 1935 Residence (City) | Montgomery Twp |
| 1935 Residence (County) | Hot Spring |
| Occupation | Farmer |
| Industry | Rented Farm |
| Class of Worker | OA |
| Hours Worked | 48 |
| Income (1939) | 0 |
| Highest Grade | G 6 |
| 1935 Residence | Same place |
| Birth State | Arkansas |
| Birth Country | United States |
| Birthplace (normalized) | arkansas |
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 Robert Martin across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Luke Martin (~0.92 confidence) and father Luke Martin (~0.92 confidence) and mother Alice Martin (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Luke Martin
b. ~1881
Source father
● Household
· direct · ~0.92
Father
Luke Martin
b. ~1887
Source father
● Household
· direct · ~0.92
Mother
Alice Martin
b. ~1890
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Martin
Head · 1940 · age 21 · b. ~1919 · Arkansas
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Hot-Spring-County, Arkansas
Open full size
1940 US Federal Census — Hot-Spring-County, Arkansas
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00141-00483)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Sam Montgomery | 38 | Head | Farmer | Arkansas |
| 2 | Linnie Montgomery | 36 | Wife | — | Arkansas |
| 3 | Gladys Montgomery | 17 | Daughter | — | Arkansas |
| 4 | Arlie Montgomery | 15 | Son | — | Arkansas |
| 5 | Louise Montgomery | 8 | Daughter | — | Arkansas |
| 6 | E. H. Bray | 49 | Head | Farmer | Arkansas |
| 7 | Henry B. Adcock | 32 | Head | Farmer | Arkansas |
| 8 | Bedia Adcock | 26 | Wife | — | Arkansas |
| 9 | Genevie Adcock | 9 | Daughter | — | Arkansas |
| 10 | Annie Adcock | 4 | Daughter | — | Arkansas |
| 11 | Helen Adcock | 2 | Daughter | — | Arkansas |
| 12 | Oleda Adcock | 1 | Daughter | — | Arkansas |
| 13 | Luke B. Martin | 54 | Head | Farmer | Georgia |
| 14 | Pearl Martin | 50 | Wife | — | Georgia |
| 15 | Cleon Martin | 20 | Son | Laborer | Arkansas |
| 16 | Floyd Martin | 18 | Son | Laborer | Arkansas |
| 17 | Robert Martin | 16 | Son | Laborer | Arkansas |
| 18 | Nellie Martin | 15 | Daughter | — | Arkansas |
| 19 | Minnie Martin | 14 | Daughter | — | Arkansas |
| 20 | Beulah Martin | 13 | Daughter | — | Arkansas |
| 21 | Adele Martin | 12 | Daughter | — | Arkansas |
| 22 | George Martin | 10 | Son | — | Arkansas |
| 23 | Luther Brannon | 21 | Boarder | Farm | Arkansas |
| 24 | Robert Martin THIS PERSON | 21 | Head | Farmer | Arkansas |
| 25 | Myrtle Martin | 22 | Wife | — | Arkansas |
| 26 | Marvin Martin | 2 | Son | — | Arkansas |
| 27 | Earnest B. Jones | 34 | Head | Farmer | Arkansas |
| 28 | Gladys Jones | 30 | Wife | — | Arkansas |
| 29 | Jerry Jones | 6 | Son | — | Arkansas |
| 30 | Gordon Jones | 4 | Son | — | Arkansas |
| 31 | Linda Jones | 2 | Daughter | — | Arkansas |
| 32 | O. S. Justice | 56 | Head | Farmer | Arkansas |
| 33 | Barbie Justice | 32 | Wife | — | Arkansas |
| 34 | Windal Justice | 5 | Son | — | Arkansas |
| 35 | Martha Justice | 4 | Daughter | — | Arkansas |
| 36 | Riley B. Walton | 45 | Head | Laborer | Arkansas |
| 37 | Gertrude Walton | 35 | Wife | — | Arkansas |
| 38 | Francis Walton | 14 | Daughter | — | Arkansas |
| 39 | Eva Walton | 12 | Daughter | — | Arkansas |
| 40 | R. T. Walton | 9 | Son | — | Arkansas |
Pedigree Summary
Robert
Gen 1 · 3 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)