RG
Ruth Gray — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Charles-County, Maryland
Our Model Tree links this Ruth Gray across the 1930 and 1940 US Censuses in Charles-County, Maryland (XGBoost, ~Confirmed) — first a daughter (b.~1926), then head of a 13-person household.
Age 14
b. ~1926
Female
Daughter
Born: Maryland
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Charles-County, Maryland |
| Surname | Gray |
| Given Name | Ruth |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | 10th Election District |
| 1935 Residence (County) | Charles |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Township / Ward | 10Th Election District |
| Est. Birth Year | ~1926 |
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.
13 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Ruth | Age | Birth yr |
|---|---|---|---|---|
| Charles Gray | Son | — | 13 | ~1927 |
| Isaac Gray | Head | — | 61 | ~1879 |
| Ruth Gray | Daughter | — | 14 | ~1926 |
| Catherine Gray | Daughter | — | 19 | ~1921 |
| Virginia Gray | Daughter | — | 10 | ~1930 |
| Lucy Gray | Daughter | — | 22 | ~1918 |
| James Gray | Son | — | 18 | ~1922 |
| Donald Gray | Other | — | 18 | ~1922 |
| George Gray | Son | — | 20 | ~1920 |
| Raymond Gray | Son | — | 17 | ~1923 |
| Adelaide Gray | Daughter | — | 11 | ~1929 |
| Mary Gray | Spouse | — | 32 | ~1908 |
| Regina Gray | Daughter | — | 15 | ~1925 |
Census Appearances
1930
Charles, Maryland
Daughter, age 4
Charles, Maryland · implied b. ~1926 — 13 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Gray |
| Given Name | Ruth |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Charles-County, Maryland
Daughter, age 14
Charles-County, Maryland · implied b. ~1926 — 13 household members
| Surname | Gray |
| Given Name | Ruth |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | 10th Election District |
| 1935 Residence (County) | Charles |
| Income (1939) | 0 |
| Highest Grade | No 6 |
| 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 Ruth Gray across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Ruth Gray
Daughter · 1940 · age 14 · b. ~1926 · Maryland
★ You are viewing this record
Sibling
James Gray
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Catherine Gray
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
George Gray
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Regina Gray
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Raymond Gray
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Adelaide Gray
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charles Gray
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Virginia Gray
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lucy Gray
Sibling · 1940 · age 22
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 — Charles-County, Maryland
Open full size
1940 US Federal Census — Charles-County, Maryland
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01546-00496)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Margaret Penny | 35 | Head | — | Maryland |
| 42 | William Penny | 39 | Son | Handy Peddler | Maryland |
| 43 | Mae L. Miller | 58 | Head | — | West Virginia |
| 44 | Robert Foyer | 56 | Head | Attendant | Maryland |
| 45 | Agnes Foyer | 44 | Wife | — | Maryland |
| 46 | Edward Foyer | 21 | Son | — | Maryland |
| 47 | James Foyer | 19 | Son | — | Maryland |
| 48 | Joseph Foyer | 17 | Son | — | Maryland |
| 49 | Margaret Harvey | 13 | Niece | — | Maryland |
| 50 | Isaac Gray | 61 | Head | — | Maryland |
| 51 | Mary D. Gray | 32 | Wife | — | Maryland |
| 52 | Lucy Gray | 22 | Daughter | Maid | Maryland |
| 53 | George Gray | 20 | Son | Park Service | Maryland |
| 54 | Catherine Gray | 19 | Daughter | Maid | Maryland |
| 55 | James Gray | 18 | Son | — | Maryland |
| 56 | Raymond Gray | 17 | Son | — | Maryland |
| 57 | Regina Gray | 15 | Daughter | — | Maryland |
| 58 | Ruth Gray THIS PERSON | 14 | Daughter | — | Maryland |
| 59 | Charles Gray | 13 | Son | — | Maryland |
| 60 | Adelaide Gray | 11 | Daughter | — | Maryland |
| 61 | Virginia Gray | 10 | Daughter | — | Maryland |
| 62 | Donald Joseph Gray | 18 | Nephew | — | Maryland |
| 63 | Viola D. Hart | 37 | Head | — | Virginia |
| 64 | John Hart | 19 | Son | — | Maryland |
| 65 | Judson Hart | 13 | Son | — | Maryland |
| 66 | Aubrey Hart | 1 | Son | — | Maryland |
| 67 | James R. Brown | 31 | Head | Farm Hand | Maryland |
| 68 | Mary Brown | 29 | Wife | — | Maryland |
| 69 | Sammie Brown | 10 | Son | — | Maryland |
| 70 | Joseph Hackerson | 34 | Head | Fireman | Maryland |
| 71 | Alice Hackerson | 31 | Wife | — | Maryland |
| 72 | Francis Hackerson | 13 | Son | — | Maryland |
| 73 | Robert Hackerson | 12 | Son | — | Maryland |
| 74 | Georgeanna Hackerson | 10 | Daughter | — | Maryland |
| 75 | Viola Hackerson | 8 | Daughter | — | Maryland |
| 76 | Fannie Hackerson | 6 | Daughter | — | Maryland |
| 77 | Irvey Hackerson | 3 | Daughter | — | Maryland |
| 78 | Charles D. Risko | 63 | Head | — | Pennsylvania |
| 79 | Julia A. Mallindey | 72 | Head | — | Maryland |
| 80 | Joseph Day | 42 | Head | Odd Jobs | 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)