WM
William Mccoy — 1940 US Census Record
Model Tree available1940 United States Federal Census · Marion-County, Indiana
Our Model Tree links this William Mccoy across the 1920, 1930 and 1940 US Censuses in Marion-County, Indiana (XGBoost, ~Confirmed), with identified parents Guy & Rebecca — first a son (b.~1917), then head of a 4-person household.
Age 23
b. ~1917
Male
Son
Born: Indiana
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Marion-County, Indiana |
| Surname | McCoy |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Anderson |
| 1935 Residence (County) | Marion |
| Additional Details | |
| Occupation | Lineman |
| Industry | Public Utilities |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1200 |
| Highest Grade | Hs 4 |
| 1935 Residence | Indiana |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
| Occupation | Lineman |
| Township / Ward | Indianapolis |
| Est. Birth Year | ~1917 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| William Mccoy | Son | — | 23 | ~1917 |
| Guy Mccoy | Head | — | 55 | ~1885 |
| Francis Mccoy | Daughter | — | 28 | ~1912 |
| Rebecca Mccoy | Spouse | — | 46 | ~1894 |
Census Appearances
1920
Marion, Indiana
Son, age 2
Marion, Indiana · implied b. ~1918 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McCoy |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1930
Marion, Indiana
Son, age 13
Marion, Indiana · implied b. ~1917 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McCoy |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Can Read/Write | Yes |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1940
Marion-County, Indiana
Son, age 23
Marion-County, Indiana · implied b. ~1917 — 4 household members
| Surname | McCoy |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Anderson |
| 1935 Residence (County) | Marion |
| Occupation | Lineman |
| Industry | Public Utilities |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1200 |
| Highest Grade | Hs 4 |
| 1935 Residence | Indiana |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
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 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Guy Mccoy (~0.92 confidence) and mother Rebecca Mccoy (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Guy Mccoy
b. ~1885
Source father
● Household
· direct · ~0.92
Mother
Rebecca Mccoy
b. ~1894
Source mother
● Household
· direct · ~0.92
This person
Anchor record
William Mccoy
Son · 1940 · age 23 · b. ~1917 · Indiana
★ You are viewing this record
Sibling
Francis Mccoy
Sibling · 1940 · age 28
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 — Marion-County, Indiana
Open full size
1940 US Federal Census — Marion-County, Indiana
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01125-00290)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Mayone Roberts | 18 | Lodger | — | Indiana |
| 42 | Otis O'Connell | 45 | Head | Welder | Indiana |
| 43 | Myrtle S O'Connell | 46 | Wife | — | Indiana |
| 44 | Otis B O'Connell | 22 | Son | Roofer | Indiana |
| 45 | Louis R O'Connell | 16 | Son | — | Indiana |
| 46 | Robert M O'Connell | 14 | Son | — | Indiana |
| 47 | Earl F Hicks | 31 | Lodger | Salesman | New York |
| 48 | Mary L Hicks | 29 | Lodger | — | Indiana |
| 49 | Josephine Anthers | 25 | Lodger | — | Indiana |
| 50 | Emmett Turner | 38 | Lodger | Roofer | Indiana |
| 51 | Mildred S Moore | 33 | Lodger | — | Indiana |
| 52 | David J Hellenburg | 38 | Head | Truck Driver | Indiana |
| 53 | Irene L Hellenburg | 39 | Wife | — | Indiana |
| 54 | John Stewart | 72 | Father in law | Engineer | England |
| 55 | George E Ramsey | 49 | Lodger | Sign Painter | Kansas |
| 56 | Nellie M Ramsey | 48 | Wife of Lodger | — | Nebraska |
| 57 | Lowell K Long | 32 | Lodger | Manager | Indiana |
| 58 | Richard L Timmons | 19 | Lodger | Laborer | Ohio |
| 59 | Adele P Kimble | 45 | Head | — | Indiana |
| 60 | John B Kimble | 24 | Son | Engineer | Indiana |
| 61 | Guy E Mccoy | 55 | Head | — | Indiana |
| 62 | Rebecca G Mccoy | 46 | Wife | — | Indiana |
| 63 | William Mccoy THIS PERSON | 23 | Son | Lineman | Indiana |
| 64 | Francis Mccoy | 28 | Daughter | Teacher | Indiana |
| 65 | Cecil S Wyant | 28 | Head | Express Messenger | Indiana |
| 66 | Ruby M Wyant | 24 | Wife | — | Indiana |
| 67 | Una B Henderson | 33 | Lodger | Typist | Indiana |
| 68 | Helen M Runcannon | 20 | Lodger | File Clerk | Indiana |
| 69 | Florence L Elmore | 61 | Lodger | Cashier | Indiana |
| 70 | Clyde C Brown | 46 | Head | Engineer | Ohio |
| 71 | Mary Brown | 45 | Wife | — | Indiana |
| 72 | Cora M Baker | 64 | Mother in law | — | Indiana |
| 73 | Harry C Baker | 22 | Brother in law | Shipping Clerk | Indiana |
| 74 | Robert C Baker | 13 | Brother in law | — | Indiana |
| 75 | John B King | 27 | Head | Salesman | Indiana |
| 76 | Mabel F King | 32 | Wife | Cashier | Indiana |
| 77 | Oral B Clift | 39 | Head | Truck Driver | Indiana |
| 78 | Goldie Clift | 39 | Wife | — | Indiana |
| 79 | Loreta Clift | 14 | Daughter | — | Indiana |
| 80 | Keith Tyler | 21 | Nephew | Manager Stock Room | Indiana |
Pedigree Summary
William + 1 sibling
Gen 1 · 2 parents
~0.92
Max depth 4 (1900–1950 window)
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)