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Robert Gray — 1940 US Census Record
Model Tree available1940 United States Federal Census · Daviess-County, Indiana
Our Model Tree links this Robert Gray across the 1920, 1930 and 1940 US Censuses in Daviess-County, Indiana (XGBoost, ~Confirmed), with identified parents Harley & Roy — first a son (b.~1919), then head of a 10-person household.
Age 21
b. ~1919
Male
Son
Born: Indiana
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Daviess-County, Indiana |
| Surname | Gray |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Washington twp |
| 1935 Residence (County) | Daviess |
| Additional Details | |
| Occupation | Laborer |
| Industry | Farm |
| Class of Worker | PW |
| Hours Worked | 59 |
| Income (1939) | 60 |
| Highest Grade | H-1 |
| 1935 Residence | Same house |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
| Occupation | Laborer |
| Township / Ward | Washington 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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Edith Gray | Daughter | — | 13 | ~1927 |
| Mary Gray | Daughter | — | 6 | ~1934 |
| Juanita Gray | Daughter | — | 8 | ~1932 |
| Roy Gray | Head | — | 56 | ~1884 |
| Gene Gray | Son | — | 17 | ~1923 |
| Lowell Gray | Son | — | 19 | ~1921 |
| Temple Gray | Son | — | 15 | ~1925 |
| Robert Gray | Son | — | 21 | ~1919 |
| Morris Gray | Son | — | 23 | ~1917 |
| Ollie Gray | Spouse | — | 52 | ~1888 |
Census Appearances
1920
Pike, Indiana
Son, age 1
Pike, Indiana · implied b. ~1919 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Gray |
| Given Name | Robert |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Occupation | none |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1930
Pike, Indiana
Son, age 11
Pike, Indiana · implied b. ~1919 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Gray |
| Given Name | Robert Q. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Can Read/Write | Yes |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1940
Daviess-County, Indiana
Son, age 21
Daviess-County, Indiana · implied b. ~1919 — 10 household members
| Surname | Gray |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Washington twp |
| 1935 Residence (County) | Daviess |
| Occupation | Laborer |
| Industry | Farm |
| Class of Worker | PW |
| Hours Worked | 59 |
| Income (1939) | 60 |
| Highest Grade | H-1 |
| 1935 Residence | Same house |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
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 Gray across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Harley Gray (~0.92 confidence) and father Roy Gray (~0.92 confidence) and father Ray Gray (~0.92 confidence) and mother Ollie Gray (~0.92 confidence) and mother Lula Gray (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Harley Gray
b. ~1884
Source father
● Household
· direct · ~0.92
Father
Roy Gray
b. ~1884
Source father
● Household
· direct · ~0.92
Father
Ray Gray
b. ~1884
Source father
● Household
· direct · ~0.92
Mother
Ollie Gray
b. ~1888
Source mother
● Household
· direct · ~0.92
Mother
Lula Gray
b. ~1891
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Gray
Son · 1940 · age 21 · b. ~1919 · Indiana
★ You are viewing this record
Sibling
Mary Gray
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lowell Gray
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Gene Gray
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Morris Gray
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Temple Gray
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Juanita Gray
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edith Gray
Sibling · 1940 · age 13
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 — Daviess-County, Indiana
Open full size
1940 US Federal Census — Daviess-County, Indiana
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01034-00724)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Charles G. White | 11 | Son | — | Indiana |
| 42 | Paul G. White | 9 | Son | — | Indiana |
| 43 | Joyce Ann White | 6 | Daughter | — | Indiana |
| 44 | Nellie White | 65 | Mother | — | Indiana |
| 45 | Emanuel Gatts | 74 | Head | — | Indiana |
| 46 | Mary Gatts | 53 | Wife | — | Indiana |
| 47 | Clarence H. Grimes | 48 | Head | Brakeman | Illinois |
| 48 | Cecelia Grimes | 34 | Wife | — | Illinois |
| 49 | Herbert E. Grimes | 16 | Son | — | Texas |
| 50 | Margaret M. Grimes | 14 | Daughter | — | Missouri |
| 51 | Martha Lou Grimes | 13 | Daughter | — | Indiana |
| 52 | Junie Carr | 40 | Head | Mill Hand | Indiana |
| 53 | Juanita P. Carr | 30 | Wife | — | Illinois |
| 54 | William L. Carr | 5 | Son | — | Indiana |
| 55 | E. V. Rogers | 32 | Head | Salesman | Indiana |
| 56 | Bernice I. Rogers | 31 | Wife | — | Indiana |
| 57 | Mary Lou Rogers | 11 | Daughter | — | Indiana |
| 58 | Vera Rogue Rogers | 10 | Daughter | — | Indiana |
| 59 | Betty Ann Rogers | 8 | Daughter | — | Indiana |
| 60 | Vaila Fr. Rogers | 5 | Son | — | Indiana |
| 61 | Hermel W. Rogers | 29 | Head | Salesman | Indiana |
| 62 | Elizabeth Rogers | 27 | Wife | — | Indiana |
| 63 | Charles F. Rogers | 4 | Son | — | Indiana |
| 64 | Wm. Robert Rogers | 1 | Son | — | Indiana |
| 65 | Martha Glezen | 35 | Lodger | Soc. Studies Teacher | Indiana |
| 66 | Charles B. Knight | 54 | Head | Switchman | Indiana |
| 67 | Delpha Knight | 45 | Wife | — | Indiana |
| 68 | Betty J. Knight | 14 | Daughter | — | Indiana |
| 69 | Roy Gray | 56 | Head | Laborer | Indiana |
| 70 | Ollie Gray | 52 | Wife | — | Indiana |
| 71 | Morris Gray | 23 | Son | Laborer | Indiana |
| 72 | Robert Gray THIS PERSON | 21 | Son | Laborer | Indiana |
| 73 | Lowell Gray | 19 | Son | Laborer | Indiana |
| 74 | Gene Gray | 17 | Son | Laborer | Indiana |
| 75 | Temple Gray | 15 | Son | — | Indiana |
| 76 | Edith Gray | 13 | Daughter | — | Indiana |
| 77 | Juanita Gray | 8 | Daughter | — | Indiana |
| 78 | Mary Gray | 6 | Daughter | — | Indiana |
| 79 | Daisy Macpaugal | 66 | Head | — | Indiana |
| 80 | Grover Higgins | 51 | Lodger | Laborer | Missouri |
Pedigree Summary
Robert + 7 siblings
Gen 1 · 5 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)