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Mary Long — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Morgan-County, Tennessee
Our Model Tree links this Mary Long across the 1930 and 1940 US Censuses in Morgan-County, Tennessee (XGBoost, ~Confirmed) — first a daughter (b.~1929), then head of a 12-person household.
Age 11
b. ~1929
Female
Daughter
Born: Tennessee
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Morgan-County, Tennessee |
| Surname | Long |
| Given Name | Mary M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Tennessee |
| 1935 Residence (City) | Petros |
| 1935 Residence (County) | Morgan |
| Additional Details | |
| Highest Grade | H 6 |
| 1935 Residence | Same place |
| Birth State | Tennessee |
| Birth Country | United States |
| Birthplace (normalized) | tennessee |
| Township / Ward | Petros |
| Est. Birth Year | ~1929 |
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.
12 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Long | Daughter | — | 11 | ~1929 |
| Deloris Long | Daughter | — | 5 | ~1935 |
| Geneva Long | Daughter | — | 20 | ~1920 |
| Janice Long | Daughter | — | 3 | ~1937 |
| John Long | Head | — | 49 | ~1891 |
| Gilbert Long | Son | — | 6 | ~1934 |
| Wayne Long | Son | — | 16 | ~1924 |
| Otton Long | Son | — | 13 | ~1927 |
| Floyd Long | Son | — | 1 | ~1939 |
| James Long | Son | — | 18 | ~1922 |
| Harley Long | Son | — | 9 | ~1931 |
| Bessie Long | Spouse | — | 42 | ~1898 |
Census Appearances
1930
Roane, Tennessee
Daughter, age 1
Roane, Tennessee · implied b. ~1929 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Long |
| Given Name | Mary M |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Tennessee |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Tennessee |
| Birth State | Tennessee |
| Birth Country | United States |
| Birthplace (normalized) | tennessee |
1940
Morgan-County, Tennessee
Daughter, age 11
Morgan-County, Tennessee · implied b. ~1929 — 12 household members
| Surname | Long |
| Given Name | Mary M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Tennessee |
| 1935 Residence (City) | Petros |
| 1935 Residence (County) | Morgan |
| Highest Grade | H 6 |
| 1935 Residence | Same place |
| Birth State | Tennessee |
| Birth Country | United States |
| Birthplace (normalized) | tennessee |
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 Long across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Long
Daughter · 1940 · age 11 · b. ~1929 · Tennessee
★ You are viewing this record
Sibling
Geneva Long
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Floyd Long
Sibling · 1940 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Wayne Long
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Janice Long
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Harley Long
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Otton Long
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Deloris Long
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Gilbert Long
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Long
Sibling · 1940 · age 18
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 — Morgan-County, Tennessee
Open full size
1940 US Federal Census — Morgan-County, Tennessee
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03924-00200)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Jimmie Walters | 4 | Son | — | Tennessee |
| 42 | Frankie Walters | 2 | Son | — | Tennessee |
| 43 | John G. Havelock | 52 | Head | Foreman | Tennessee |
| 44 | Edda Ann Havelock | 60 | Wife | — | Tennessee |
| 45 | Jas. W. Boyds | 56 | Head | Foreman | Tennessee |
| 46 | Eula Boyds | 45 | Wife | — | Tennessee |
| 47 | Billy Ruth Boyds | 13 | Daughter | — | Tennessee |
| 48 | Jack G. Boyds | 11 | Son | — | Tennessee |
| 49 | Victor Hensley | 42 | Head | Weighman | Tennessee |
| 50 | Grace Hensley | 39 | Wife | — | Tennessee |
| 51 | James C. Hensley | 20 | Son | Laborer | Tennessee |
| 52 | Lawrence Hensley | 18 | Son | — | Tennessee |
| 53 | Bernard Hensley | 15 | Son | — | Tennessee |
| 54 | Marcie Hensley | 10 | Daughter | — | Tennessee |
| 55 | Tommy Hensley | 5 | Son | — | Tennessee |
| 56 | Johnny Hensley | 2 | Son | — | Tennessee |
| 57 | Provitt O. Huff | 38 | Head | Doctor | Tennessee |
| 58 | Irene L. Huff | 31 | Wife | — | Tennessee |
| 59 | Joan E. Huff | 9 | Daughter | — | Tennessee |
| 60 | Martha J. Huff | 5 | Daughter | — | Tennessee |
| 61 | John R. Long | 49 | Head | Foreman | Kentucky |
| 62 | Bessie Long | 42 | Wife | — | Tennessee |
| 63 | Geneva Long | 20 | Daughter | — | Tennessee |
| 64 | James E. Long | 18 | Son | Laborer | Kentucky |
| 65 | Wayne Ethel Long | 16 | Son | — | Tennessee |
| 66 | Otton H. Long | 13 | Son | — | Tennessee |
| 67 | Mary M. Long THIS PERSON | 11 | Daughter | — | Tennessee |
| 68 | Harley G. Long | 9 | Son | — | Tennessee |
| 69 | Gilbert R. Long | 6 | Son | — | Tennessee |
| 70 | Deloris Kay Long | 5 | Daughter | — | Tennessee |
| 71 | Janice B. Long | 3 | Daughter | — | Tennessee |
| 72 | Floyd H. Long | 1 | Son | — | Tennessee |
| 73 | Horace M. Parris | 38 | Head | Transportation Officer | Kentucky |
| 74 | Nell G. Parris | 38 | Wife | — | Tennessee |
| 75 | Marvin K. Parris | 11 | Son | — | Tennessee |
| 76 | William G. Jackson | 50 | Head | Mgr. State Farm | Virginia |
| 77 | Amanda J. Jackson | 50 | Wife | — | Tennessee |
| 78 | Lill Jackson | 22 | Daughter | — | Tennessee |
| 79 | Pearl Jackson | 20 | Daughter | — | Tennessee |
| 80 | Willard Jackson | 18 | Son | — | Tennessee |
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)