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Mary Mccoy — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Madison-County, Louisiana
Our Model Tree links this Mary Mccoy across the 1930 and 1940 US Censuses in Madison-County, Louisiana (XGBoost, ~Confirmed) — first a daughter (b.~1928), then head of a 10-person household.
Age 12
b. ~1928
Female
Daughter
Born: Louisiana
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Madison-County, Louisiana |
| Surname | McCoy |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Louisiana |
| 1935 Residence (City) | Tallulah Village |
| 1935 Residence (County) | Madison |
| Additional Details | |
| Highest Grade | No 2 |
| 1935 Residence | Same place |
| Birth State | Louisiana |
| Birth Country | United States |
| Birthplace (normalized) | louisiana |
| Township / Ward | Tallulah Village |
| Est. Birth Year | ~1928 |
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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Irene Mccoy | Daughter | — | 8 | ~1932 |
| Helma Mccoy | Daughter | — | 7 | ~1933 |
| Helen Mccoy | Daughter | — | 18 | ~1922 |
| Ruth Mccoy | Daughter | — | 17 | ~1923 |
| Juanita Mccoy | Daughter | — | 15 | ~1925 |
| Mary Mccoy | Daughter | — | 12 | ~1928 |
| Peter Mccoy | Head | — | 56 | ~1884 |
| Odestra Mccoy | Son | — | 10 | ~1930 |
| James Mccoy | Son | — | 11 | ~1929 |
| Theodore Mccoy | Son | — | 21 | ~1919 |
Census Appearances
1930
Madison, Louisiana
Daughter, age 5
Madison, Louisiana · implied b. ~1925 — 12 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McCoy |
| Given Name | Mary E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Louisiana |
| Age at First Marriage | 5 |
| Father's Birthplace | Mississippi |
| Mother's Birthplace | Alabama |
| Can Read/Write | No |
| Birth State | Louisiana |
| Birth Country | United States |
| Birthplace (normalized) | louisiana |
1940
Madison-County, Louisiana
Daughter, age 12
Madison-County, Louisiana · implied b. ~1928 — 10 household members
| Surname | McCoy |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Louisiana |
| 1935 Residence (City) | Tallulah Village |
| 1935 Residence (County) | Madison |
| Highest Grade | No 2 |
| 1935 Residence | Same place |
| Birth State | Louisiana |
| Birth Country | United States |
| Birthplace (normalized) | louisiana |
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 Mccoy across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Mccoy
Daughter · 1940 · age 12 · b. ~1928 · Louisiana
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Sibling
James Mccoy
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Irene Mccoy
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Odestra Mccoy
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Helen Mccoy
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Helma Mccoy
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Juanita Mccoy
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Theodore Mccoy
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ruth Mccoy
Sibling · 1940 · age 17
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 — Madison-County, Louisiana
Open full size
1940 US Federal Census — Madison-County, Louisiana
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01412-00629)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Floyd Clark | 12 | Lodger | — | Louisiana |
| 2 | Florence Reece | 32 | Mother | Cook | Mississippi |
| 3 | William Bicker | 51 | Head | Laborer | Louisiana |
| 4 | Mamie Bicker | 50 | Wife | — | North Carolina |
| 5 | Narcissa Lee | 9 | Daughter | — | Louisiana |
| 6 | Daisy Johnson | 40 | Lodger | Cook | Louisiana |
| 7 | Charlie Harris | 30 | Head | Laborer | Louisiana |
| 8 | Gertrude Harris | 28 | Wife | Cook | Louisiana |
| 9 | Ethel Small | 54 | Mother-in-law | — | Louisiana |
| 10 | R. L. Harm | 61 | Head | Blacksmith | Tennessee |
| 11 | Jannie Harm | 50 | Wife | — | Mississippi |
| 12 | J. H. Harm | 21 | Son | Laborer | Arkansas |
| 13 | Richard Harm | 19 | Son | Mechanic | Arkansas |
| 14 | Charles Mansell | 24 | Lodger | Waiter | Illinois |
| 15 | James Leatt | 60 | Head | — | Louisiana |
| 16 | Gearline Leatt | 47 | Wife | — | Louisiana |
| 17 | Jack Shippe | 73 | Head | — | Mississippi |
| 18 | Louisa Shippe | 72 | Wife | — | Louisiana |
| 19 | Sally Dankin | 56 | Head | Cook | Mississippi |
| 20 | Cecil Dankin | 32 | Son | Delivery Boy | Louisiana |
| 21 | Hattie Dankin | 22 | Daughter-in-law | — | Mississippi |
| 22 | Peter Mccoy | 56 | Head | Farmer | Mississippi |
| 23 | Theodore Mccoy | 21 | Son | Laborer | Louisiana |
| 24 | Helen Mccoy | 18 | Daughter | — | Louisiana |
| 25 | Ruth Mccoy | 17 | Daughter | — | Louisiana |
| 26 | Juanita Mccoy | 15 | Daughter | — | Louisiana |
| 27 | Mary Mccoy THIS PERSON | 12 | Daughter | — | Louisiana |
| 28 | James Mccoy | 11 | Son | — | Louisiana |
| 29 | Odestra Mccoy | 10 | Son | — | Louisiana |
| 30 | Irene Mccoy | 8 | Daughter | — | Louisiana |
| 31 | Helma Mccoy | 7 | Daughter | — | Louisiana |
| 32 | Lucy Wilson | 45 | Head | — | Mississippi |
| 33 | Margurite Wilson | 15 | Daughter | — | Louisiana |
| 34 | Mary Wilson | 14 | Daughter | — | Louisiana |
| 35 | Royal Wilson | 11 | Son | — | Louisiana |
| 36 | Berton Williams | 58 | Lodger | — | Louisiana |
| 37 | Arthur May | 41 | Head | Laborer | Louisiana |
| 38 | Luvinia May | 36 | Wife | Collector | Louisiana |
| 39 | Dora Chalmers | 13 | Niece | — | Louisiana |
| 40 | Walter Gray | 46 | Head | Laborer | Louisiana |
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)