RM
Richard Martin — 1940 US Census Record
Model Tree available1940 United States Federal Census · Gwinnett-County, Georgia
Our Model Tree links this Richard Martin across the 1920, 1930 and 1940 US Censuses in Gwinnett-County, Georgia (XGBoost, ~Confirmed), with identified parents Richard & Mary — first a head (b.~1905), then head of a 3-person household.
Age 35
b. ~1905
Male
Head
Born: Georgia
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Gwinnett-County, Georgia |
| Surname | Martin |
| Given Name | Richard Runyan |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Georgia |
| 1935 Residence (City) | Lawrenceville city |
| 1935 Residence (County) | Gwinnett |
| Additional Details | |
| Occupation | Mechanic |
| Industry | Automobile Company |
| Class of Worker | PW |
| Hours Worked | 60 |
| Income (1939) | 352 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Georgia |
| Birth Country | United States |
| Birthplace (normalized) | georgia |
| Occupation | Mechanic |
| Township / Ward | Lawrenceville City |
| Est. Birth Year | ~1905 |
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 Richard | Age | Birth yr |
|---|---|---|---|---|
| Richard Martin | Head | — | 35 | ~1905 |
| Johnny Martin | Son | — | 7 | ~1933 |
| Mary Martin | Spouse | — | 32 | ~1908 |
Census Appearances
1920
Gwinnett, Georgia
Son, age 16
Gwinnett, Georgia · implied b. ~1904 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Richard R. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Georgia |
| Father's Birthplace | Georgia |
| Mother's Birthplace | Georgia |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Georgia |
| Birth Country | United States |
| Birthplace (normalized) | georgia |
1930
Gwinnett, Georgia
Son, age 27
Gwinnett, Georgia · implied b. ~1903 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Richard R |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Georgia |
| Father's Birthplace | Georgia |
| Mother's Birthplace | Georgia |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Georgia |
| Birth Country | United States |
| Birthplace (normalized) | georgia |
1940
Gwinnett-County, Georgia
Head, age 35
Gwinnett-County, Georgia · implied b. ~1905 — 3 household members
| Surname | Martin |
| Given Name | Richard Runyan |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Georgia |
| 1935 Residence (City) | Lawrenceville city |
| 1935 Residence (County) | Gwinnett |
| Occupation | Mechanic |
| Industry | Automobile Company |
| Class of Worker | PW |
| Hours Worked | 60 |
| Income (1939) | 352 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Georgia |
| Birth Country | United States |
| Birthplace (normalized) | georgia |
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 Richard Martin across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Richard Martin (~0.92 confidence) and mother Mary Martin (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Richard Martin
b. ~1858
Source father
● Household
· direct · ~0.92
Mother
Mary Martin
b. ~1876
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Richard Martin
Head · 1940 · age 35 · b. ~1905 · Georgia
★ 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 — Gwinnett-County, Georgia
Open full size
1940 US Federal Census — Gwinnett-County, Georgia
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-00680-00597)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Evelyn Portain | 22 | Lodger | Prentice | Georgia |
| 2 | Dorothy Portain | 20 | Lodger | — | Georgia |
| 3 | Albert B. Jordan | 48 | Head | Manager | Georgia |
| 4 | Maude Jordan | 45 | Wife | — | Georgia |
| 5 | Ray W. Morgan | 28 | Head | Laborer | Alabama |
| 6 | Nancy D. Morgan | 22 | Wife | — | Georgia |
| 7 | Gerald Casey Morgan | 3 | Son | — | Georgia |
| 8 | Nancy Helen Morgan | 1 | Daughter | — | Georgia |
| 9 | Clyde N. Phillips | 37 | Head | Warden | Georgia |
| 10 | Susan H. Phillips | 35 | Wife | Seamstress | Georgia |
| 11 | Nunnaly Phillips | 11 | Son | — | Georgia |
| 12 | Ismael Phillips | 9 | Son | — | Georgia |
| 13 | Peggy Phillips | 7 | Daughter | — | Georgia |
| 14 | Edna Frady | 25 | Housekeeper | Housekeeper | Georgia |
| 15 | Richard Runyan Martin THIS PERSON | 35 | Head | Mechanic | Georgia |
| 16 | Mary Alice E. Martin | 32 | Wife | — | Georgia |
| 17 | Johnny R. Martin | 7 | Son | — | Georgia |
| 18 | John Berry Hudson | 47 | Head | Guard | Georgia |
| 19 | Maude S. Hudson | 47 | Wife | — | Georgia |
| 20 | Woodrow Hudson | 15 | Son | — | Georgia |
| 21 | Larry Nelson Tuck | 5 | Nephew | Usher | Georgia |
| 22 | Nathan H. Ray | 21 | Head | Laborer | Georgia |
| 23 | Mary Lou M. Ray | 19 | Wife | — | Georgia |
| 24 | Mary Estelle Ray | 1 | Daughter | — | Georgia |
| 25 | Connie Harbin | 32 | Head | Laborer | Georgia |
| 26 | Mary C. Harbin | 63 | Mother | — | Georgia |
| 27 | Frank Rimbrough | 40 | Head | Truck Driver | Georgia |
| 28 | Beatrice T. Rimbrough | 32 | Wife | — | Georgia |
| 29 | Betty Jane Rimbrough | 7 | Daughter | — | Georgia |
| 30 | Jerry Rimbrough | 5 | Son | — | Georgia |
| 31 | Charles David Rimbrough | 10 | Nephew | — | Georgia |
| 32 | Janie C. Dutton | 53 | Head | — | Georgia |
| 33 | James F. Dutton | 25 | Son | — | Georgia |
| 34 | Dewey Holman | 26 | Head | Laborer | Georgia |
| 35 | Maudine B. Holman | 23 | Wife | Seamstress | Georgia |
| 36 | John Thomas Grice | 56 | Head | Guard | Georgia |
| 37 | Ellen B. Grice | 49 | Wife | — | Georgia |
| 38 | Cam Hayne Grice | 29 | Son | Truck Driver | Georgia |
| 39 | Lois S. Grice | 26 | Daughter-in-law | Machine Operator | Georgia |
Related Census Records
Pedigree Summary
Richard
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)