MG
Mary Griffith — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Caroline-County, Maryland
Our Model Tree links this Mary Griffith across the 1930 and 1940 US Censuses in Caroline-County, Maryland (XGBoost, ~Confirmed) — first a daughter (b.~1927), then head of a 9-person household.
Age 13
b. ~1927
Female
Daughter
Born: Maryland
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Caroline-County, Maryland |
| Surname | Griffith |
| Given Name | Mary Virginia |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Caroline Maryland |
| 1935 Residence (County) | Caroline |
| Additional Details | |
| Highest Grade | No 6 |
| 1935 Residence | Maryland |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Township / Ward | Election District 3 Denton |
| Est. Birth Year | ~1927 |
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 Mary | Age | Birth yr |
|---|---|---|---|---|
| Josephine Griffith | Daughter | — | 6 | ~1934 |
| June Griffith | Daughter | — | 11 | ~1929 |
| Lelia Griffith | Daughter | — | 15 | ~1925 |
| Mary Griffith | Daughter | — | 13 | ~1927 |
| Randolph Griffith | Head | — | 45 | ~1895 |
| Harvey Griffith | Other | — | 42 | ~1898 |
| Harold Griffith | Son | — | 9 | ~1931 |
| Marion Griffith | Son | — | 23 | ~1917 |
| Helen Griffith | Spouse | — | 49 | ~1891 |
Census Appearances
1930
Caroline, Maryland
Other, age 3
Caroline, Maryland · implied b. ~1927 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Griffith |
| Given Name | Mary V. |
| Sex | F |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Delaware |
| Mother's Birthplace | Maryland |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Caroline-County, Maryland
Daughter, age 13
Caroline-County, Maryland · implied b. ~1927 — 9 household members
| Surname | Griffith |
| Given Name | Mary Virginia |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Caroline Maryland |
| 1935 Residence (County) | Caroline |
| Highest Grade | No 6 |
| 1935 Residence | Maryland |
| 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 Mary Griffith across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Griffith
Daughter · 1940 · age 13 · b. ~1927 · Maryland
★ You are viewing this record
Sibling
Marion Griffith
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Harold Griffith
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lelia Griffith
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
June Griffith
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Josephine Griffith
Sibling · 1940 · age 6
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 — Caroline-County, Maryland
Open full size
1940 US Federal Census — Caroline-County, Maryland
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01543-00485)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Margaret S. Allston | 10 | Daughter | — | Delaware |
| 2 | Norwood H. Allston | 8 | Son | — | Delaware |
| 3 | Ernest L. Allston | 5 | Son | — | Maryland |
| 4 | Pauline Allston | 2 | Daughter | — | Maryland |
| 5 | Th. Thomas Lockerman | 34 | Head | Merchant | New York |
| 6 | Anna E. Lockerman | 29 | Wife | — | Maryland |
| 7 | William Ray Lockerman | 1 | Son | — | Maryland |
| 8 | Alvin W. Gadow | 32 | Head | Cutter | Maryland |
| 9 | Ruth V. Gadow | 34 | Wife | — | Delaware |
| 10 | John R. Hitels | 83 | Head | Retired | Delaware |
| 11 | Florence Hitels | 68 | Wife | Conductor | Maryland |
| 12 | Samuel T. Jopp | 46 | Head | Photography | Pennsylvania |
| 13 | Florence M. Jopp | 37 | Wife | Operator | Maryland |
| 14 | Frank W. Vootus | 86 | Head | — | Maryland |
| 15 | James H. Vootus | 23 | Son | Laborer | Maryland |
| 16 | Ernest J. Harris | 29 | Head | Truck Driver | Maryland |
| 17 | Pauline Harris | 26 | Wife | — | Pennsylvania |
| 18 | Jr. Ernest J. Harris | 2 | Son | — | Maryland |
| 19 | Arthur Wheatman | 30 | Head | Salesman | Delaware |
| 20 | Evelyn Wheatman | 29 | Wife | — | Maryland |
| 21 | Martin Wheatman | 8 | Son | — | Delaware |
| 22 | Robert Wheatman | 4 | Son | — | Maryland |
| 23 | Randolph Griffith | 45 | Head | Laborer | Delaware |
| 24 | Helen Griffith | 49 | Wife | — | Maryland |
| 25 | Marion R. Griffith | 23 | Son | Laborer | Delaware |
| 26 | Lelia Griffith | 15 | Daughter | — | Maryland |
| 27 | Mary Virginia Griffith THIS PERSON | 13 | Daughter | — | Maryland |
| 28 | June Mae Griffith | 11 | Daughter | — | Maryland |
| 29 | Harold Griffith | 9 | Son | — | Maryland |
| 30 | Josephine E. Griffith | 6 | Daughter | — | Maryland |
| 31 | Harvey T. Griffith | 42 | Brother | Laborer | Delaware |
| 32 | John S. Anderson | 85 | Head | Farmer | Maine |
| 33 | Elizabeth Anderson | 76 | Sister | — | Canada-Eng |
| 34 | Charles E. Carroll | 67 | Head | Proprietor | Maryland |
| 35 | Alice E. Carroll | 60 | Wife | — | Maryland |
| 36 | Clyde Jr. Payne | 22 | Son-in-law | Laborer | Maryland |
| 37 | Alice R. Payne | 22 | Daughter | — | Maryland |
| 38 | Charles E. Carroll | 34 | Son | Farmer | Maryland |
| 39 | Anna E. Carroll | 32 | Daughter | Operator | Maryland |
| 40 | Clifford H. Heller | 61 | Head | Farmer | Pennsylvania |
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)