RA
Robert Armstrong — 1940 US Census Record
Model Tree available1940 United States Federal Census · Cuyahoga-County, Ohio
Our Model Tree links this Robert Armstrong across the 1920, 1930 and 1940 US Censuses in Cuyahoga-County, Ohio (XGBoost, ~Confirmed), with identified parents Alvin & Robert — first a son (b.~1916), then head of a 7-person household.
Age 24
b. ~1916
Male
Son
Born: Ohio
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cuyahoga-County, Ohio |
| Surname | Armstrong |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Cleveland |
| 1935 Residence (County) | Cuyahoga |
| Additional Details | |
| Occupation | Plater |
| Industry | Manufacturing |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 390 |
| Highest Grade | C 4 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Occupation | Plater |
| Township / Ward | Cleveland |
| Est. Birth Year | ~1916 |
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 Robert | Age | Birth yr |
|---|---|---|---|---|
| Genevieve Davis | Daughter | — | 28 | ~1912 |
| Robert Armstrong | Head | — | 53 | ~1887 |
| Gale Davis | Other | — | 2 | ~1938 |
| Nelson Davis | Other | — | 5 | ~1935 |
| Russel Davis | Other | — | 31 | ~1909 |
| Robert Armstrong | Son | — | 24 | ~1916 |
| Lucille Armstrong | Spouse | — | 51 | ~1889 |
Census Appearances
1920
Cuyahoga, Ohio
Son, age 2
Cuyahoga, Ohio · implied b. ~1918 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Armstrong |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1930
Cuyahoga, Ohio
Son, age 13
Cuyahoga, Ohio · implied b. ~1917 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Armstrong |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Can Read/Write | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Cuyahoga-County, Ohio
Son, age 24
Cuyahoga-County, Ohio · implied b. ~1916 — 7 household members
| Surname | Armstrong |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Cleveland |
| 1935 Residence (County) | Cuyahoga |
| Occupation | Plater |
| Industry | Manufacturing |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 390 |
| Highest Grade | C 4 |
| 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 Armstrong across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Alvin Armstrong (~0.92 confidence) and father Robert Armstrong (~0.92 confidence) and father Robert Armstrong (~0.92 confidence) and mother Lucille Armstrong (~0.92 confidence) and mother Lucille Armstrong (~0.92 confidence) and mother Margaret Armstrong (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Alvin Armstrong
b. ~1884
Source father
● Household
· direct · ~0.92
Father
Robert Armstrong
b. ~1887
Source father
● Household
· direct · ~0.92
Father
Robert Armstrong
b. ~1887
Source father
● Household
· direct · ~0.92
Mother
Lucille Armstrong
b. ~1889
Source mother
● Household
· direct · ~0.92
Mother
Lucille Armstrong
b. ~1889
Source mother
● Household
· direct · ~0.92
Mother
Margaret Armstrong
b. ~1889
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Armstrong
Son · 1940 · age 24 · b. ~1916 · Ohio
★ You are viewing this record
Sibling
Genevieve Davis
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 — Cuyahoga-County, Ohio
Open full size
1940 US Federal Census — Cuyahoga-County, Ohio
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03218-00747)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Fred Malinsky | 70 | Head | Hardware | Ohio |
| 2 | Mary (X) Malinsky | 68 | Wife | — | Ohio |
| 3 | Emil Malin | 34 | Son | Switchboard Operator | Ohio |
| 4 | Helen Malin | 35 | In Law | — | Ohio |
| 5 | Frank (X) Erben | 61 | Head | Janitor | Bohemia |
| 6 | Rose Erben | 57 | Wife | — | Bohemia |
| 7 | Helen Erben | 22 | Daughter | Secretary | Ohio |
| 8 | Mildred Erben | 23 | Daughter | Comptometer Operator | Ohio |
| 9 | Antonia Rubin | 84 | Mother in Law | — | Bohemia |
| 10 | Charles (X) Havlichek | 70 | Head | — | Ohio |
| 11 | Barbara Havlichek | 70 | Wife | — | Austria |
| 12 | Arthur Havlichek | 39 | Son | Proprietor | Ohio |
| 13 | Blanche Havlichek | 37 | In Law | — | Ohio |
| 14 | Janice Havlichek | 12 | Granddaughter | — | Ohio |
| 15 | Dennis Havlichek | 8 | Grandson | — | Ohio |
| 16 | Harry Fisher | 55 | Head | Building Maintenance | Ohio |
| 17 | Florence Fisher | 53 | Wife | — | Ohio |
| 18 | Robert Armstrong | 53 | Head | Dentist | Ohio |
| 19 | Lucille (X) Armstrong | 51 | Wife | — | Ohio |
| 20 | Robert Armstrong THIS PERSON | 24 | Son | Plater | Ohio |
| 21 | Russel Davis | 31 | Son in Law | Production Foreman | Ohio |
| 22 | Genevieve Davis | 28 | Daughter | — | Ohio |
| 23 | Nelson Davis | 5 | Grandson | — | Ohio |
| 24 | Gale Davis | 2 | Granddaughter | — | Ohio |
| 25 | Isabell Guilfoyle | 70 | Head | — | England |
| 26 | Eugene Priola | 30 | Lodger | Poultry Handler | Ohio |
| 27 | Frank Wagner | 32 | Head | Clerk Play. | Ohio |
| 28 | Thelma (X) Wagner | 33 | Wife | — | Penn |
| 29 | Janice Wagner | 9 | Daughter | — | Ohio |
| 30 | Gertrude Maloney | 55 | Mother in Law | — | Austria |
| 31 | Lewis Maloney | 24 | Brother in Law | Laborer | Ohio |
| 32 | Alice (X) Marble | 35 | Head | Teacher | Ohio |
| 33 | Anna Marble | 65 | Mother | — | Ohio |
| 34 | Joseph (X) Domin | 51 | Head | Steel Handler | Ohio |
| 35 | Adeline Domin | 48 | Wife | — | Ohio |
| 36 | Edrick (X) Mason | 61 | Head | — | Ohio |
| 37 | Ada Mason | 65 | Wife | — | Ohio |
| 38 | Reva Mason | 24 | Daughter | — | Ohio |
| 39 | William Blaschke | 54 | Head | Teacher | Ohio |
| 40 | Josephine Blaschke | 51 | Wife | Foreman Japanning | Ohio |
Pedigree Summary
Robert + 1 sibling
Gen 1 · 6 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)