JG
Joseph Gray — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Calvert-County, Maryland
Our Model Tree links this Joseph Gray across the 1930 and 1940 US Censuses in Calvert-County, Maryland (XGBoost, ~Confirmed) — first a son (b.~1930), then head of a 9-person household.
Age 10
b. ~1930
Male
Son
Born: Maryland
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Calvert-County, Maryland |
| Surname | Gray |
| Given Name | Joseph |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Election Dist. 3 |
| 1935 Residence (County) | Calvert |
| Additional Details | |
| Highest Grade | No 2 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Township / Ward | Election Dist 3 |
| Est. Birth Year | ~1930 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Joseph | Age | Birth yr |
|---|---|---|---|---|
| Russell Gray | Head | — | 38 | ~1902 |
| Jeannette Gray | Daughter | — | 5 | ~1935 |
| Russelene Gray | Daughter | — | 2 | ~1938 |
| Rosalyn Gray | Daughter | — | 2 | ~1938 |
| Gertrude Gray | Daughter | — | 7 | ~1933 |
| Joseph Gray | Son | — | 10 | ~1930 |
| Freddie Gray | Son | — | 9 | ~1931 |
| Stewart Gray | Son | — | 1 | ~1939 |
| Rebecca Gray | Spouse | — | 34 | ~1906 |
Census Appearances
1930
Calvert, Maryland
Other, age 1
Calvert, Maryland · implied b. ~1929 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Gray |
| Given Name | Joseph |
| Relationship to Head | Nephew |
| Sex | M |
| Color / Race | Black |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Calvert-County, Maryland
Son, age 10
Calvert-County, Maryland · implied b. ~1930 — 9 household members
| Surname | Gray |
| Given Name | Joseph |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Election Dist. 3 |
| 1935 Residence (County) | Calvert |
| Highest Grade | No 2 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
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 Joseph Gray across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Joseph Gray
Son · 1940 · age 10 · b. ~1930 · Maryland
★ You are viewing this record
Sibling
Stewart Gray
Sibling · 1940 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Gertrude Gray
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rosalyn Gray
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Russelene Gray
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jeannette Gray
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Freddie Gray
Sibling · 1940 · age 9
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 — Calvert-County, Maryland
Open full size
1940 US Federal Census — Calvert-County, Maryland
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01543-00273)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Rachel L Swann | 34 | Daughter | — | Maryland |
| 42 | Herbert A Swann | 30 | Son | Farmer | Maryland |
| 43 | Robert W Swann | 21 | Son | Farm Laborer | Maryland |
| 44 | Ruben D Jones | 45 | Head | Farmer | Maryland |
| 45 | Elizabeth Jones | 72 | Mother | — | Maryland |
| 46 | Everett D Gray | 48 | Head | Farmer | Maryland |
| 47 | Rachel Gray | 47 | Wife | — | Maryland |
| 48 | Thelma Gray | 1 | Daughter | — | Maryland |
| 49 | Russell V Gray | 38 | Head | Farmer | Maryland |
| 50 | Rebecca Gray | 34 | Wife | — | Maryland |
| 51 | Joseph Gray THIS PERSON | 10 | Son | — | Maryland |
| 52 | Freddie Gray | 9 | Son | — | Maryland |
| 53 | Gertrude Gray | 7 | Daughter | — | Maryland |
| 54 | Jeannette Gray | 5 | Daughter | — | Maryland |
| 55 | Russelene Gray | 2 | Daughter | — | Maryland |
| 56 | Rosalyn Gray | 2 | Daughter | — | Maryland |
| 57 | Stewart Gray | 1 | Son | — | Maryland |
| 58 | Calvert | 21 | Son | Farm Laborer | Maryland |
| 59 | Dorothy | 18 | Daughter-in-law | — | Maryland |
| 60 | Theresa | 0 | Granddaughter | — | Maryland |
| 61 | Calvert Norfolk | 31 | Head | Farmer | Maryland |
| 62 | Virginia Norfolk | 25 | Wife | — | Maryland |
| 63 | Calvert Jr Norfolk | 1 | Son | — | Maryland |
| 64 | William T Norfolk | 60 | Head | Farmer | Maryland |
| 65 | Eva K Norfolk | 56 | Wife | — | Maryland |
| 66 | Virginia Norfolk | 26 | Daughter | — | Maryland |
| 67 | Hattie V Buoy | 39 | Servant | Servant | Maryland |
| 68 | Raymond Holland | 36 | Head | Hired Hand | Maryland |
| 69 | Laura Holland | 20 | Wife | — | Maryland |
| 70 | Thomas Rawlings | 58 | Head | Farmer | Maryland |
| 71 | Gertrude Rawlings | 48 | Wife | — | Maryland |
| 72 | Thomas Rawlings | 24 | Son | Laborer | Maryland |
| 73 | Bernard Rawlings | 18 | Son | Laborer | Maryland |
| 74 | Beatrice Rawlings | 16 | Daughter | — | Maryland |
| 75 | Mildred Wills | 13 | Granddaughter | — | Maryland |
| 76 | Robert Rawlings | 1 | Grandson | — | Maryland |
| 77 | Lalie Plater | 35 | Brother-in-law | — | Maryland |
| 78 | James D Booge | 48 | Head | Farmer | Maryland |
| 79 | Maize Booge | 47 | Wife | — | Maryland |
| 80 | Thomas Booge | 16 | Son | — | Maryland |
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)