RC
Robert Cooper — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Beaver-County, Pennsylvania
Our Model Tree links this Robert Cooper across the 1920, 1930 and 1940 US Censuses in Beaver-County, Pennsylvania (XGBoost, ~Confirmed) — first a head (b.~1893), then head of a 9-person household.
Age 47
b. ~1893
Male
Head
Born: Ohio
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Beaver-County, Pennsylvania |
| Surname | Cooper |
| Given Name | Robert |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 47 |
| Marital Status | Married |
| Birthplace | Ohio |
| 1935 Residence (City) | Ambridge Borough |
| 1935 Residence (County) | Beaver |
| Additional Details | |
| Occupation | Electrician |
| Industry | Electric Co |
| Class of Worker | PW |
| Hours Worked | 24 |
| Income (1939) | 314 |
| Highest Grade | Hs 3 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Occupation | Electrician |
| Township / Ward | Ambridge Borough |
| Est. Birth Year | ~1893 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Ruth Cooper | Daughter | — | 19 | ~1921 |
| Mary Cooper | Daughter | — | 15 | ~1925 |
| Virginia Makey | Daughter | — | 20 | ~1920 |
| Robert Cooper | Head | — | 47 | ~1893 |
| William Makey | Other | — | 23 | ~1917 |
| Edward Cooper | Son | — | 17 | ~1923 |
| William Cooper | Son | — | 11 | ~1929 |
| Robert Cooper | Son | — | 13 | ~1927 |
| Marie Cooper | Spouse | — | 43 | ~1897 |
Census Appearances
1920
Beaver, Pennsylvania
Head, age 27
Beaver, Pennsylvania · implied b. ~1893 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cooper |
| Given Name | Robert |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Married |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Occupation | Electrician |
| Industry | Rail Road |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Year of Naturalization | R |
| Birthplace (normalized) | ohio |
1930
Beaver, Pennsylvania
Head, age 37
Beaver, Pennsylvania · implied b. ~1893 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cooper |
| Given Name | Robert |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Ohio |
| Age at First Marriage | 25 |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Occupation | Electrician |
| Industry | Tube Mill |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 3000 |
| Radio Set | R |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Beaver-County, Pennsylvania
Head, age 47
Beaver-County, Pennsylvania · implied b. ~1893 — 9 household members
| Surname | Cooper |
| Given Name | Robert |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 47 |
| Marital Status | Married |
| Birthplace | Ohio |
| 1935 Residence (City) | Ambridge Borough |
| 1935 Residence (County) | Beaver |
| Occupation | Electrician |
| Industry | Electric Co |
| Class of Worker | PW |
| Hours Worked | 24 |
| Income (1939) | 314 |
| Highest Grade | Hs 3 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
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 Cooper across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Robert Cooper
Head · 1940 · age 47 · b. ~1893 · Pennsylvania
★ 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 — Beaver-County, Pennsylvania
Open full size
1940 US Federal Census — Beaver-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03426-00105)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Ruth Royal | 19 | Daughter | Secretary | Penna |
| 2 | Joseph Rosk | 55 | Head | Heater | Poland |
| 3 | Mary Rosk | 48 | Wife | — | Poland |
| 4 | Alexander Rosk | 23 | Son | Laborer | Penna |
| 5 | Anne Rosk | 21 | Daughter | — | Penna |
| 6 | Stanley Rosk | 20 | Son | Machinist | Penna |
| 7 | Thaddeus Rosk | 18 | Son | Newsworker | Penna |
| 8 | Edward Rosk | 16 | Son | — | Penna |
| 9 | Alexander Reid | 29 | Head | Laborer | Penna |
| 10 | Evelyn Reid | 27 | Wife | — | Penna |
| 11 | John Swietanowski | 56 | Head | Coal Washer | Poland |
| 12 | Regina Swietanowski | 54 | Wife | — | Poland |
| 13 | Stanley Swietanowski | 25 | Son | Grinder | Penna |
| 14 | Bertha Swietanowski | 22 | Daughter | Waitress | Penna |
| 15 | Wilda Swietanowski | 18 | Daughter | — | Penna |
| 16 | Andrew Swietanowski | 16 | Son | — | Penna |
| 17 | Frank Swietanowski | 30 | Head | Wire Drawer | Penna |
| 18 | Mary Swietanowski | 23 | Wife | — | Penna |
| 19 | Robert Swietanowski | 2 | Son | — | Penna |
| 20 | Gerald Swietanowski | 0 | Son | — | Penna |
| 21 | Louis Herrmann | 70 | Head | Health Officer | Germany |
| 22 | Eleanor Herrmann | 58 | Wife | — | Penna |
| 23 | Helen Herrmann | 28 | Daughter | Secretary | Penna |
| 24 | Joseph Herrmann | 24 | Son | Laborer | Penna |
| 25 | Magdalena Herrmann | 19 | Daughter | — | Penna |
| 26 | Robert Cooper THIS PERSON | 47 | Head | Electrician | Ohio |
| 27 | Marie Cooper | 43 | Wife | — | Penna |
| 28 | Ruth Cooper | 19 | Daughter | Assembly | Penna |
| 29 | Edward Cooper | 17 | Son | Newsworker | Penna |
| 30 | Mary Alice Cooper | 15 | Daughter | — | Penna |
| 31 | Robert Cooper | 13 | Son | — | Penna |
| 32 | William Cooper | 11 | Son | — | Penna |
| 33 | William Makey | 23 | Son-in-law | Iron Strappers | Ohio |
| 34 | Virginia Makey | 20 | Daughter | — | Penna |
| 35 | Michael Duncan | 29 | Head | Thread Inspector | Penna |
| 36 | Loma Duncan | 26 | Wife | — | Penna |
| 37 | Lee Robert Duncan | 4 | Son | — | Penna |
| 38 | Virginia Alice Duncan | 2 | Daughter | — | Penna |
| 39 | Michael Lyons | 48 | Head | Laborer | Penna |
| 40 | Helen Lyons | 47 | Wife | — | Penna |
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)