RM
Robert Mccoy — 1940 US Census Record
Model Tree available1940 United States Federal Census · Polk-County, Oregon
Our Model Tree links this Robert Mccoy across the 1920, 1930 and 1940 US Censuses in Polk-County, Oregon (XGBoost, ~Confirmed), with identified parents Cora & Cora — first a son (b.~1917), then head of a 2-person household.
Age 23
b. ~1917
Male
Son
Born: Oregon
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Polk-County, Oregon |
| Surname | McCoy |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Oregon |
| 1935 Residence (City) | Falls City Town |
| 1935 Residence (County) | Polk |
| Additional Details | |
| Occupation | Lumber puller |
| Industry | Planer mill |
| Class of Worker | PW |
| Hours Worked | 32 |
| Income (1939) | 256 |
| Highest Grade | Hs 3 |
| 1935 Residence | Same place |
| Birth State | Oregon |
| Birth Country | United States |
| Birthplace (normalized) | oregon |
| Occupation | Lumber Puller |
| Township / Ward | Falls City Town |
| 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.
2 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Robert Mccoy | Son | — | 23 | ~1917 |
| Cora Mccoy | Head | — | 61 | ~1879 |
Census Appearances
1920
Polk, Oregon
Son, age 2
Polk, Oregon · implied b. ~1918 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McCoy |
| Given Name | Robert R. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Oregon |
| Father's Birthplace | Kansas |
| Mother's Birthplace | Oregon |
| Can Read | No |
| Can Write | No |
| Speaks English | No |
| Birth State | Oregon |
| Birth Country | United States |
| Birthplace (normalized) | oregon |
1930
Polk, Oregon
Son, age 13
Polk, Oregon · implied b. ~1917 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McCoy |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Oregon |
| Father's Birthplace | Kansas |
| Mother's Birthplace | Oregon |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Oregon |
| Birth Country | United States |
| Birthplace (normalized) | oregon |
1940
Polk-County, Oregon
Son, age 23
Polk-County, Oregon · implied b. ~1917 — 2 household members
| Surname | McCoy |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Oregon |
| 1935 Residence (City) | Falls City Town |
| 1935 Residence (County) | Polk |
| Occupation | Lumber puller |
| Industry | Planer mill |
| Class of Worker | PW |
| Hours Worked | 32 |
| Income (1939) | 256 |
| Highest Grade | Hs 3 |
| 1935 Residence | Same place |
| Birth State | Oregon |
| Birth Country | United States |
| Birthplace (normalized) | oregon |
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 Robert Mccoy across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Cora Mccoy (~0.92 confidence) and mother Cora Mccoy (~0.92 confidence) and mother Lora Mccoy (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Cora Mccoy
b. ~1879
Source mother
● Household
· direct · ~0.92
Mother
Cora Mccoy
b. ~1879
Source mother
● Household
· direct · ~0.92
Mother
Lora Mccoy
b. ~1879
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Mccoy
Son · 1940 · age 23 · b. ~1917 · Oregon
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Polk-County, Oregon
Open full size
1940 US Federal Census — Polk-County, Oregon
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03378-00220)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Frank Warren | 76 | Head | — | California |
| 2 | Ida Warren | 74 | Wife | — | Oregon |
| 3 | Jacob Wagner | 74 | Head | Farmer | Austria |
| 4 | Emilia Wagner | 69 | Wife | — | Minnesota |
| 5 | Theresa Toller | 72 | Head | — | Poland |
| 6 | Laura Hora | 64 | Head | — | Denmark |
| 7 | Wilbur Drake | 22 | Head | Mathematics Teacher | Colorado |
| 8 | Maxine Drake | 24 | Wife | — | Colorado |
| 9 | Dean Kingsbury | 21 | Head | Logger | South Dakota |
| 10 | Theola Kingsbury | 18 | Wife | — | Iowa |
| 11 | George Harvey | 48 | Father-in-law | Ditch Digger | Illinois |
| 12 | Louis Van Detta | 28 | Head | Truck Driver | Oregon |
| 13 | Maxine Van Detta | 27 | Wife | — | Nebraska |
| 14 | Louis Van Detta | 2 | Son | — | Oregon |
| 15 | William Van Detta | 0 | Son | — | Oregon |
| 16 | Matie L. Painter | 72 | Head | — | Colorado |
| 17 | John W. Sumption | 34 | Son-in-law | Edgerman | Oregon |
| 18 | Leah Sumption | 28 | Daughter | — | Colorado |
| 19 | Stanley Sumption | 3 | Grandson | — | Oregon |
| 20 | Theodora Metcalf | 59 | Head | — | Maine |
| 21 | Theodore Metcalf | 16 | Son | — | Oregon |
| 22 | Rodney Foote | 81 | Brother-in-law | — | Nova Scotia |
| 23 | Henry Wagner | 76 | Head | Shoe Maker | Austria |
| 24 | John Marr | 45 | Head | — | Montana |
| 25 | Hilda Marr | 37 | Wife | — | South Dakota |
| 26 | Harvey Marr | 19 | Son | — | Oregon |
| 27 | James Marr | 17 | Son | — | Oregon |
| 28 | Richard Marr | 15 | Son | — | Oregon |
| 29 | Cora Mccoy | 61 | Head | Operator | Oregon |
| 30 | Robert Mccoy THIS PERSON | 23 | Son | Lumber Puller | Oregon |
| 31 | Frank Mack | 58 | Head | Owner | Michigan |
| 32 | Nellie Mack | 59 | Wife | Clerk-Helper | Michigan |
| 33 | Charles Mack | 38 | Son | Packer | Oregon |
| 34 | George Macmurphy | 63 | Head | Ditch Digger | Wisconsin |
| 35 | Dinah Macmurphy | 62 | Wife | — | Oregon |
| 36 | Katharina Zawadsky | 43 | Servant | Houseworker | Russia |
| 37 | Katharina Zawadsky | 14 | Daughter | — | Russia |
| 38 | Robert Worden | 44 | Head | Waiter | Washington |
| 39 | Rosalie Worden | 42 | Wife | Waitress | Michigan |
| 40 | Harden E. Davis | 73 | Head | Dentist | Oregon |
Pedigree Summary
Robert
Gen 1 · 3 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)