RJ
Robert Jacobs — 1940 US Census Record
Model Tree available1940 United States Federal Census · Gwinnett-County, Georgia
Our Model Tree links this Robert Jacobs across the 1920, 1930 and 1940 US Censuses in Gwinnett-County, Georgia (XGBoost, ~Confirmed), with identified parents Charles & Charlie — first a son (b.~1919), then head of a 7-person household.
Age 21
b. ~1919
Male
Son
Born: Georgia
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Gwinnett-County, Georgia |
| Surname | Jacobs |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Georgia |
| 1935 Residence (City) | Lawrenceville |
| 1935 Residence (County) | Gwinnett |
| Additional Details | |
| Industry | 0 |
| Highest Grade | H 4 |
| 1935 Residence | Same House |
| Birth State | Georgia |
| Birth Country | United States |
| Birthplace (normalized) | georgia |
| Township / Ward | Lawrenceville |
| 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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Theo Jacobs | Other | — | 20 | ~1920 |
| Howard Jacobs | Son | — | 16 | ~1924 |
| Herbert Jacobs | Son | — | 26 | ~1914 |
| Charlie Jacobs | Head | — | 47 | ~1893 |
| Robert Jacobs | Son | — | 21 | ~1919 |
| Ara Jacobs | Spouse | — | 46 | ~1894 |
| Eugene Jacobs | Son | — | 19 | ~1921 |
Census Appearances
1920
Gwinnett, Georgia
Son, age 1
Gwinnett, Georgia · implied b. ~1919 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jacobs |
| Given Name | Robert L. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Georgia |
| Father's Birthplace | Georgia |
| Mother's Birthplace | Georgia |
| Birth State | Georgia |
| Birth Country | United States |
| Birthplace (normalized) | georgia |
1930
Gwinnett, Georgia
Son, age 11
Gwinnett, Georgia · implied b. ~1919 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jacobs |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Georgia |
| Father's Birthplace | Georgia |
| Mother's Birthplace | Georgia |
| Can Read/Write | Yes |
| Birth State | Georgia |
| Birth Country | United States |
| Birthplace (normalized) | georgia |
1940
Gwinnett-County, Georgia
Son, age 21
Gwinnett-County, Georgia · implied b. ~1919 — 7 household members
| Surname | Jacobs |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Georgia |
| 1935 Residence (City) | Lawrenceville |
| 1935 Residence (County) | Gwinnett |
| Industry | 0 |
| Highest Grade | H 4 |
| 1935 Residence | Same House |
| 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 Robert Jacobs across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Charles Jacobs (~0.92 confidence) and father Charlie Jacobs (~0.92 confidence) and mother Ara Jacobs (~0.92 confidence) and mother Avae Jacobs (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Charles Jacobs
b. ~1894
Source father
● Household
· direct · ~0.92
Father
Charlie Jacobs
b. ~1893
Source father
● Household
· direct · ~0.92
Mother
Ara Jacobs
b. ~1894
Source mother
● Household
· direct · ~0.92
Mother
Avae Jacobs
b. ~1894
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Jacobs
Son · 1940 · age 21 · b. ~1919 · Georgia
★ You are viewing this record
Sibling
Herbert Jacobs
Sibling · 1940 · age 26
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Eugene Jacobs
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Howard Jacobs
Sibling · 1940 · age 16
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 — Gwinnett-County, Georgia
Open full size
1940 US Federal Census — Gwinnett-County, Georgia
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00680-00630)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Leona Smith | 41 | Wife | House Keeper | Georgia |
| 42 | Gladys Smith | 19 | Daughter | 24 | Georgia |
| 43 | Adel Smith | 10 | Daughter | — | Georgia |
| 44 | Jamie Mae Smith | 8 | Daughter | — | Georgia |
| 45 | Lutizia Smith | 5 | Daughter | — | Georgia |
| 46 | Clifford Smith | 52 | Brother in law | Labourer | Georgia |
| 47 | Charlie T. Jacobs | 47 | Head | Farmer | Georgia |
| 48 | Ara J. Jacobs | 46 | Wife | Teacher | Georgia |
| 49 | Herbert Jacobs | 26 | Son | Labourer | Georgia |
| 50 | Eugene Jacobs | 19 | Son | — | Georgia |
| 51 | Howard Jacobs | 16 | Son | Salesman | Georgia |
| 52 | Robert Jacobs THIS PERSON | 21 | Son | — | Georgia |
| 53 | Theo. G. Jacobs | 20 | Grandson | Farmer | Georgia |
| 54 | Mark Ewing | 68 | Head | — | Georgia |
| 55 | Martha Ewing | 70 | Wife | — | Georgia |
| 56 | Joe Ewing | 38 | Son | Labourer | Georgia |
| 57 | Father Ewing | 21 | Son | Labourer | Georgia |
| 58 | Emory S. Wages | 54 | Head | Ordinary | Georgia |
| 59 | Lattie S. Wages | 51 | Wife | — | Georgia |
| 60 | Lola Mae Wages | 26 | Daughter | Stenographer | Georgia |
| 61 | Emory S. Jr. Wages | 21 | Son | — | Georgia |
| 62 | Mary Lou Wages | 18 | Daughter | — | Georgia |
| 63 | Hugh D. Wages | 16 | Son | — | Georgia |
| 64 | Oread Mceary | 30 | Head | Farmer | Georgia |
| 65 | Audie K. Mceary | 24 | Wife | — | Georgia |
| 66 | Peggy Jo Mceary | 4 | Daughter | — | Georgia |
| 67 | Sheral K. Smith | 56 | Head | Salesman | Georgia |
| 68 | Nancy G. Smith | 50 | Wife | Seamstress | Georgia |
| 69 | Marion Withers | 59 | Head | Laborer | Georgia |
| 70 | Haley Withers | 69 | Wife | — | Georgia |
| 71 | Chas. F. Friswell | 59 | Head | Oil Inspector | Georgia |
| 72 | Ida A. Friswell | 61 | Wife | — | Georgia |
| 73 | Hattie Hayes | 32 | Cook | Cook | Georgia |
| 74 | Clarence Still | 29 | Hired Hand | Labourer | Georgia |
| 75 | John D. Daniel | 55 | Head | Farmer | Georgia |
| 76 | Bessie B. Daniel | 47 | Wife | — | Georgia |
| 77 | Margaret E. Hayes | 60 | Head | — | Georgia |
| 78 | George W. Phillips | 28 | Head | Farmer | Georgia |
| 79 | Mittie H. Phillips | 26 | Wife | — | Georgia |
| 80 | Andrew J. Edwards | 66 | Head | Odd Jobs | Georgia |
Pedigree Summary
Robert + 3 siblings
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)