RF
Robert Foster — 1940 US Census Record
Model Tree available1940 United States Federal Census · Frederick-County, Virginia
Our Model Tree links this Robert Foster across the 1920, 1930 and 1940 US Censuses in Frederick-County, Virginia (XGBoost, ~Confirmed), with identified parents David & Mary — first a head (b.~1904), then head of a 5-person household.
Age 36
b. ~1904
Male
Head
Born: Virginia
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Frederick-County, Virginia |
| Surname | Foster |
| Given Name | Robert |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | Virginia |
| 1935 Residence (City) | Gainesboro District |
| 1935 Residence (County) | Frederick |
| Additional Details | |
| Occupation | Laborer |
| Industry | Stone Quarry |
| Class of Worker | PW |
| Hours Worked | 50 |
| Income (1939) | 260 |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| Birth State | Virginia |
| Birth Country | United States |
| Birthplace (normalized) | virginia |
| Occupation | Laborer |
| Township / Ward | Gainesboro District |
| Est. Birth Year | ~1904 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Nancy Foster | Daughter | — | 7 | ~1933 |
| Edith Foster | Daughter | — | 2 | ~1938 |
| Robert Foster | Head | — | 36 | ~1904 |
| Garland Foster | Son | — | 4 | ~1936 |
| Lelia Foster | Spouse | — | 28 | ~1912 |
Census Appearances
1920
Frederick, Virginia
Son, age 15
Frederick, Virginia · implied b. ~1905 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Foster |
| Given Name | Robert R. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Virginia |
| Father's Birthplace | Virginia |
| Mother's Birthplace | Virginia |
| Occupation | Farm Laborer |
| Industry | Home Farm |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Virginia |
| Birth Country | United States |
| Birthplace (normalized) | virginia |
1930
Frederick, Virginia
Son, age 26
Frederick, Virginia · implied b. ~1904 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Foster |
| Given Name | Robert A. |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Virginia |
| Father's Birthplace | Virginia |
| Mother's Birthplace | Virginia |
| Occupation | Labor |
| Industry | Odd Jobs |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Virginia |
| Birth Country | United States |
| Birthplace (normalized) | virginia |
1940
Frederick-County, Virginia
Head, age 36
Frederick-County, Virginia · implied b. ~1904 — 5 household members
| Surname | Foster |
| Given Name | Robert |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | Virginia |
| 1935 Residence (City) | Gainesboro District |
| 1935 Residence (County) | Frederick |
| Occupation | Laborer |
| Industry | Stone Quarry |
| Class of Worker | PW |
| Hours Worked | 50 |
| Income (1939) | 260 |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| Birth State | Virginia |
| Birth Country | United States |
| Birthplace (normalized) | virginia |
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 Foster across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father David Foster (~0.92 confidence) and mother Mary Foster (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
David Foster
b. ~1873
Source father
● Household
· direct · ~0.92
Mother
Mary Foster
b. ~1878
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Foster
Head · 1940 · age 36 · b. ~1904 · Virginia
★ 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 — Frederick-County, Virginia
Open full size
1940 US Federal Census — Frederick-County, Virginia
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-04264-00094)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Thelma Fletcher | 27 | Boarder | Teacher | Virginia |
| 42 | Maggie Boxwell | 74 | Head | — | Virginia |
| 43 | Eula Light | 68 | Head | — | Virginia |
| 44 | Maggie Light | 64 | Wife | — | Virginia |
| 45 | Hiram J. Mcdaniel | 47 | Head | Farmer | Virginia |
| 46 | Mary Mcdaniel | 34 | Wife | — | Maryland |
| 47 | Hiram Jr. Mcdaniel | 16 | Son | Laborer | Virginia |
| 48 | Virginia L. Mcdaniel | 14 | Daughter | — | Virginia |
| 49 | Leo C. Mcdaniel | 5 | Son | — | Virginia |
| 50 | Leo C. Mcdaniel | 70 | Father | — | Virginia |
| 51 | Ollie C. Clowser | 54 | Head | Farmer | Virginia |
| 52 | Annie Clowser | 52 | Wife | — | Virginia |
| 53 | Charles Clowser | 31 | Son | Laborer | Virginia |
| 54 | Beatrice Clowser | 29 | Daughter-in-law | — | Virginia |
| 55 | Silas Palmer | 40 | Head | Laborer | Virginia |
| 56 | Elizabeth Palmer | 28 | Wife | — | Virginia |
| 57 | Virginia Palmer | 9 | Daughter | — | Virginia |
| 58 | William Palmer | 8 | Son | — | Virginia |
| 59 | Joseph Allen Palmer | 4 | Son | — | Virginia |
| 60 | R. Lloyd Cooper | 38 | Head | Extractor | Virginia |
| 61 | Opal Cooper | 27 | Wife | — | Virginia |
| 62 | Vivian Cooper | 13 | Daughter | — | West Virginia |
| 63 | Robert Cooper | 11 | Son | — | Virginia |
| 64 | Phillene Cooper | 9 | Daughter | — | Virginia |
| 65 | Madheleen Cooper | 5 | Daughter | — | Virginia |
| 66 | Robert Foster THIS PERSON | 36 | Head | Laborer | Virginia |
| 67 | Lelia Foster | 28 | Wife | — | Virginia |
| 68 | Nancy Foster | 7 | Daughter | — | Virginia |
| 69 | Garland Foster | 4 | Son | — | Virginia |
| 70 | Edith Foster | 2 | Daughter | — | Virginia |
| 71 | David Grubbs | 67 | Head | — | Virginia |
| 72 | Sarah Grubbs | 71 | Wife | — | Virginia |
| 73 | Carter Hoover | 48 | Head | Carpenter | Virginia |
| 74 | Gertrude Hoover | 47 | Wife | — | Virginia |
| 75 | Maxine Hoover | 18 | Daughter | — | Virginia |
| 76 | Carl Hoover | 15 | Son | — | Virginia |
| 77 | Anna Hoover | 14 | Daughter | — | Virginia |
| 78 | Victor Hoover | 12 | Son | — | Virginia |
| 79 | Vernon Hoover | 12 | Son | — | Virginia |
| 80 | Betty Jean Hoover | 8 | Daughter | — | Virginia |
Pedigree Summary
Robert
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)