MC
Mary Cannon — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Laurens-County, South Carolina
Our Model Tree links this Mary Cannon across the 1930 and 1940 US Censuses in Laurens-County, South Carolina (XGBoost, ~Confirmed) — first a daughter (b.~1916), then head of a 11-person household.
Age 24
b. ~1916
Female
Daughter
Born: South Carolina
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Laurens-County, South Carolina |
| Surname | Cannon |
| Given Name | Mary L |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | South Carolina |
| 1935 Residence (City) | Hunter Township |
| 1935 Residence (County) | Laurens |
| Additional Details | |
| Class of Worker | 0 |
| Hours Worked | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same home |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
| Township / Ward | Hunter Township |
| Est. Birth Year | ~1916 |
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.
11 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Bessie Cannon | Spouse | — | 45 | ~1895 |
| Edna Cannon | Daughter | — | 14 | ~1926 |
| Mary Cannon | Daughter | — | 24 | ~1916 |
| John Cannon | Head | — | 52 | ~1888 |
| Florence Cannon | Daughter | — | 16 | ~1924 |
| Jannie Cannon | Daughter | — | 13 | ~1927 |
| Rufus Cannon | Son | — | 20 | ~1920 |
| William Cannon | Son | — | 11 | ~1929 |
| John Cannon | Son | — | 24 | ~1916 |
| Lucy Cannon | Daughter | — | 15 | ~1925 |
| Dorothy Cannon | Daughter | — | 17 | ~1923 |
Census Appearances
1930
Laurens, South …
Other, age 14
Laurens, South Carolina · implied b. ~1916 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cannon |
| Given Name | Mary |
| Relationship to Head | Niece |
| Sex | F |
| Color / Race | Black |
| Age | 14 |
| Marital Status | Single |
| Birthplace | South Carolina |
| Father's Birthplace | South Carolina |
| Mother's Birthplace | South Carolina |
| Can Read/Write | Yes |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
1940
Laurens-County, South …
Daughter, age 24
Laurens-County, South Carolina · implied b. ~1916 — 11 household members
| Surname | Cannon |
| Given Name | Mary L |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | South Carolina |
| 1935 Residence (City) | Hunter Township |
| 1935 Residence (County) | Laurens |
| Class of Worker | 0 |
| Hours Worked | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same home |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
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 Cannon across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Cannon
Daughter · 1940 · age 24 · b. ~1916 · South Carolina
★ You are viewing this record
Sibling
Florence Cannon
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Cannon
Sibling · 1940 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Cannon
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rufus Cannon
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lucy Cannon
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jannie Cannon
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edna Cannon
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Cannon
Sibling · 1940 · age 11
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 — Laurens-County, South Carolina
Open full size
1940 US Federal Census — Laurens-County, South Carolina
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03821-00491)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Mosley L Surber | 8 | Grandson | — | South Carolina |
| 42 | Lillie Q Hunter | 63 | Head | — | South Carolina |
| 43 | Lilliam Wax | 14 | Granddaughter | — | South Carolina |
| 44 | Tillan Campbell | 19 | Lodger | Outside Labor | South Carolina |
| 45 | Maggie S Crooks | 51 | Head | Washer-Woman | South Carolina |
| 46 | Sammie Dorough | 22 | Nephew | Outside Labor | South Carolina |
| 47 | Laura A Young | 94 | Grandmother | — | South Carolina |
| 48 | Mary A Berry | 6 | Adopted | — | South Carolina |
| 49 | Willie Harris | 29 | Head | Day Labor | South Carolina |
| 50 | Minnie Q Harris | 31 | Wife | — | South Carolina |
| 51 | Carrie L Harris | 8 | Daughter | — | South Carolina |
| 52 | Minnie M Harris | 7 | Daughter | — | South Carolina |
| 53 | Willie J Harris | 6 | Son | — | South Carolina |
| 54 | Eugene Harris | 4 | Son | — | South Carolina |
| 55 | Otto Harris | 1 | Son | — | South Carolina |
| 56 | Tom Simpson | 52 | Head | Farming | South Carolina |
| 57 | Mattie Q Simpson | 53 | Wife | Farming | South Carolina |
| 58 | Lara Simpson | 15 | Daughter | — | South Carolina |
| 59 | Clarence Simpson | 21 | Son | Farming | South Carolina |
| 60 | Ella B Simpson | 18 | Daughter-in-law | Farming | South Carolina |
| 61 | Mary G Grant | 9 | Granddaughter | — | South Carolina |
| 62 | Claude Q Hill | 48 | Head | Farming | South Carolina |
| 63 | Lucie Hill | 40 | Wife | Farming | South Carolina |
| 64 | Elizabeth Hill | 21 | Daughter | — | South Carolina |
| 65 | Claude Jr Hill | 20 | Son | Farming | South Carolina |
| 66 | Orlie Hill | 18 | Daughter | Farming | South Carolina |
| 67 | Hattie M Hill | 15 | Daughter | — | South Carolina |
| 68 | Louie L Hill | 13 | Daughter | — | South Carolina |
| 69 | Vernell Hill | 10 | Daughter | — | South Carolina |
| 70 | John B Q Cannon | 52 | Head | Carpenter | South Carolina |
| 71 | Bessie M Cannon | 45 | Wife | — | South Carolina |
| 72 | Mary L Cannon THIS PERSON | 24 | Daughter | — | South Carolina |
| 73 | John H Cannon | 24 | Son | Carpenter | South Carolina |
| 74 | Rufus Cannon | 20 | Son | Strips Cards | South Carolina |
| 75 | Dorothy Cannon | 17 | Daughter | — | South Carolina |
| 76 | Florence Cannon | 16 | Daughter | — | South Carolina |
| 77 | Lucy Cannon | 15 | Daughter | — | South Carolina |
| 78 | Edna Cannon | 14 | Daughter | — | South Carolina |
| 79 | Jannie Cannon | 13 | Daughter | — | South Carolina |
| 80 | William C Cannon | 11 | Son | — | South Carolina |
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)