WM
William Mccoy — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Alcorn-County, Mississippi
Our Model Tree links this William Mccoy across the 1930 and 1940 US Censuses in Alcorn-County, Mississippi (XGBoost, ~Confirmed) — first a son (b.~1930), then head of a 7-person household.
Age 10
b. ~1930
Male
Son
Born: Mississippi
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Alcorn-County, Mississippi |
| Surname | McCoy |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Mississippi |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Alcorn |
| Additional Details | |
| Highest Grade | No 4 |
| 1935 Residence | Mississippi |
| Birth State | Mississippi |
| Birth Country | United States |
| Birthplace (normalized) | mississippi |
| Township / Ward | Beat 2 |
| Est. Birth Year | ~1930 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Minnie Mccoy | Spouse | — | 35 | ~1905 |
| William Mccoy | Son | — | 10 | ~1930 |
| Mary Mccoy | Daughter | — | 7 | ~1933 |
| Willis Mccoy | Son | — | 2 | ~1938 |
| Ben Mccoy | Head | — | 34 | ~1906 |
| Mattie Mccoy | Daughter | — | 5 | ~1935 |
| Milton Mccoy | Son | — | 12 | ~1928 |
Census Appearances
1930
Alcorn, Mississippi
Son, age
Alcorn, Mississippi · implied b. ~1930 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McCoy |
| Given Name | Wilburn |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Mississippi |
| Father's Birthplace | Mississippi |
| Mother's Birthplace | Mississippi |
| Birth State | Mississippi |
| Birth Country | United States |
| Birthplace (normalized) | mississippi |
1940
Alcorn-County, Mississippi
Son, age 10
Alcorn-County, Mississippi · implied b. ~1930 — 7 household members
| Surname | McCoy |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Mississippi |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Alcorn |
| Highest Grade | No 4 |
| 1935 Residence | Mississippi |
| Birth State | Mississippi |
| Birth Country | United States |
| Birthplace (normalized) | mississippi |
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 William Mccoy across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
William Mccoy
Son · 1940 · age 10 · b. ~1930 · Mississippi
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Sibling
Willis Mccoy
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Milton Mccoy
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Mccoy
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mattie Mccoy
Sibling · 1940 · age 5
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 — Alcorn-County, Mississippi
Open full size
1940 US Federal Census — Alcorn-County, Mississippi
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02006-00429)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Minnie Richardson | 68 | Wife | — | Tennessee |
| 42 | Millard O Childers | 25 | Head | Farmer | Mississippi |
| 43 | Lillian Childers | 25 | Wife | — | Mississippi |
| 44 | Willma Childers | 4 | Daughter | — | Mississippi |
| 45 | Betty Childers | 2 | Daughter | — | Mississippi |
| 46 | John Childers | 1 | Son | — | Mississippi |
| 47 | John D Childers | 62 | Head | — | Mississippi |
| 48 | Annie Bell Childers | 47 | Wife | — | Mississippi |
| 49 | Tom Caleb | 63 | Lodger | Laborer | Mississippi |
| 50 | Carl O Dickinson | 27 | Head | Farmer | Mississippi |
| 51 | Ethel Dickinson | 53 | Wife | — | Tennessee |
| 52 | Alsie Dickinson | 21 | Daughter | Teacher | Mississippi |
| 53 | John H D Burnham | 76 | Head | Farmer | Mississippi |
| 54 | Annie Burnham | 73 | Wife | — | Mississippi |
| 55 | Ernest Richardson | 31 | Head | Farmer | Mississippi |
| 56 | Eva Richardson | 27 | Wife | — | Mississippi |
| 57 | James Richardson | 8 | Son | — | Mississippi |
| 58 | Nora Gene Richardson | 3 | Daughter | — | Mississippi |
| 59 | Ben D Mccoy | 34 | Head | Farmer | Mississippi |
| 60 | Minnie Mccoy | 35 | Wife | — | Mississippi |
| 61 | Milton Mccoy | 12 | Son | — | Mississippi |
| 62 | William Mccoy THIS PERSON | 10 | Son | — | Mississippi |
| 63 | Mary Mccoy | 7 | Daughter | — | Mississippi |
| 64 | Mattie Mccoy | 5 | Daughter | — | Mississippi |
| 65 | Willis Mccoy | 2 | Son | — | Mississippi |
| 66 | John D Mccoy | 68 | Head | Farmer | Mississippi |
| 67 | Julia Mccoy | 66 | Wife | — | Alabama |
| 68 | Floyd Maness | 42 | Head | Farmer | Mississippi |
| 69 | Dollie O Maness | 37 | Wife | — | Mississippi |
| 70 | John Maness | 14 | Son | Laborer | Mississippi |
| 71 | Bernice Maness | 13 | Daughter | — | Mississippi |
| 72 | Milford Maness | 11 | Son | — | Mississippi |
| 73 | Mildred Maness | 11 | Daughter | — | Mississippi |
| 74 | Hugh Maness | 9 | Son | — | Mississippi |
| 75 | Billy Maness | 6 | Son | — | Mississippi |
| 76 | Jais O Martin | 37 | Head | Farmer | Mississippi |
| 77 | Agnes Martin | 14 | Daughter | Laborer | Tennessee |
| 78 | Jesse Martin | 12 | Son | — | Tennessee |
| 79 | Billy Martin | 9 | Son | — | Tennessee |
| 80 | Alma Martin | 7 | Daughter | — | Arkansas |
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)