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John Mccoy — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Scott-County, Iowa
Our Model Tree links this John Mccoy across the 1930 and 1940 US Censuses in Scott-County, Iowa (XGBoost, ~Confirmed) — first a son (b.~1921), then head of a 12-person household.
Age 19
b. ~1921
Male
Son
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Scott-County, Iowa |
| Surname | McCoy |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Bettendorf City |
| 1935 Residence (County) | Scott |
| Additional Details | |
| Occupation | Truck driver |
| Industry | Florist |
| Class of Worker | PW |
| Hours Worked | 12 |
| Income (1939) | 432 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Truck Driver |
| Township / Ward | Bettendorf City |
| Est. Birth Year | ~1921 |
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 John | Age | Birth yr |
|---|---|---|---|---|
| Evelyn Mccoy | Daughter | — | 17 | ~1923 |
| Delores Mccoy | Daughter | — | 5 | ~1935 |
| John Mccoy | Head | — | 52 | ~1888 |
| Donald Mccoy | Son | — | 3 | ~1937 |
| Melvin Mccoy | Son | — | 22 | ~1918 |
| Clifford Mccoy | Son | — | 14 | ~1926 |
| Robert Mccoy | Son | — | 7 | ~1933 |
| William Mccoy | Son | — | 9 | ~1931 |
| John Mccoy | Son | — | 19 | ~1921 |
| Edgar Mccoy | Son | — | 21 | ~1919 |
| Kenneth Mccoy | Son | — | 11 | ~1929 |
| Elva Mccoy | Spouse | — | 42 | ~1898 |
Census Appearances
1930
Scott, Iowa
Son, age 9
Scott, Iowa · implied b. ~1921 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McCoy |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Illinois |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Scott-County, Iowa
Son, age 19
Scott-County, Iowa · implied b. ~1921 — 12 household members
| Surname | McCoy |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Bettendorf City |
| 1935 Residence (County) | Scott |
| Occupation | Truck driver |
| Industry | Florist |
| Class of Worker | PW |
| Hours Worked | 12 |
| Income (1939) | 432 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
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 John Mccoy across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Mccoy
Son · 1940 · age 19 · b. ~1921 · Iowa
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Sibling
Evelyn Mccoy
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edgar Mccoy
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Mccoy
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Mccoy
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Donald Mccoy
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Delores Mccoy
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Kenneth Mccoy
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Clifford Mccoy
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Melvin Mccoy
Sibling · 1940 · age 22
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 — Scott-County, Iowa
Open full size
1940 US Federal Census — Scott-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01202-00050)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Thomas Bone | 70 | Head | — | Illinois |
| 2 | Minnie Bone | 62 | Wife | — | Germany |
| 3 | Gladys Antonoplos | 45 | Head | — | Iowa |
| 4 | Nick Antonoplos | 23 | Son | Tool Clerk | Massachusetts |
| 5 | Robert Antonoplos | 15 | Son | — | Iowa |
| 6 | Clarice Antonoplos | 14 | Daughter | — | Iowa |
| 7 | John Antonoplos | 12 | Son | — | Iowa |
| 8 | Angelene Antonoplos | 10 | Daughter | — | Iowa |
| 9 | Mary Antonoplos | 9 | Daughter | — | Iowa |
| 10 | Pauline Antonoplos | 7 | Daughter | — | Iowa |
| 11 | John Mccoy | 52 | Head | Crane Operator | Iowa |
| 12 | Elva Mccoy | 42 | Wife | — | Illinois |
| 13 | Melvin Mccoy | 22 | Son | Mill Work | Iowa |
| 14 | Edgar Mccoy | 21 | Son | Truck Driver | Iowa |
| 15 | John Mccoy THIS PERSON | 19 | Son | Truck Driver | Iowa |
| 16 | Evelyn Mccoy | 17 | Daughter | — | Iowa |
| 17 | Clifford Mccoy | 14 | Son | — | Iowa |
| 18 | Kenneth Mccoy | 11 | Son | — | Iowa |
| 19 | William Mccoy | 9 | Son | — | Iowa |
| 20 | Robert Mccoy | 7 | Son | — | Iowa |
| 21 | Delores Mccoy | 5 | Daughter | — | Iowa |
| 22 | Donald Mccoy | 3 | Son | — | Iowa |
| 23 | Elizabeth Burke | 65 | Head | — | Hungary |
| 24 | Carl Burke | 28 | Son | Machinist | Illinois |
| 25 | Paul Burke | 25 | Son | Machinist | Iowa |
| 26 | Nels Nelson | 51 | Head | Fireman | Sweden |
| 27 | Florence Nelson | 48 | Wife | — | Illinois |
| 28 | Lawrence Nelson | 21 | Son | Machinist Apprentice | Iowa |
| 29 | Charles Nelson | 16 | Son | — | Iowa |
| 30 | George Haigh | 24 | Head | Draftsman | Illinois |
| 31 | Eloise Haigh | 21 | Wife | — | Iowa |
| 32 | Glenn Van Sant | 47 | Head | Moulder | Iowa |
| 33 | Rosa Van Sant | 41 | Wife | — | Iowa |
| 34 | Luella Van Sant | 22 | Daughter | Secretary | Iowa |
| 35 | Benny Van Sant | 17 | Son | Odd Jobs | Iowa |
| 36 | Ray Van Sant | 14 | Son | — | Iowa |
| 37 | Homer Van Sant | 10 | Son | — | Iowa |
| 38 | Wilmer Van Sant | 44 | Brother | Furnace Man | Iowa |
| 39 | Waldemar Stunnamann | 47 | Head | Truck Driver | Iowa |
| 40 | Mary Stunnamann | 25 | Wife | — | Iowa |
Related Census Records
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)