RA
Robert Armstrong — 1940 US Census Record
Model Tree available1940 United States Federal Census · Ashtabula-County, Ohio
Our Model Tree links this Robert Armstrong across the 1920, 1930 and 1940 US Censuses in Ashtabula-County, Ohio (XGBoost, ~Confirmed), with identified parents Helen & John — first a son (b.~1896), then head of a 3-person household.
Age 44
b. ~1896
Male
Son
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Ashtabula-County, Ohio |
| Surname | Armstrong |
| Given Name | Robert B |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 44 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Saybrook Township |
| 1935 Residence (County) | Ashtabula |
| Additional Details | |
| Hours Worked | 7 |
| Highest Grade | 7 |
| 1935 Residence | Same House |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Saybrook Township |
| Est. Birth Year | ~1896 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Helen Armstrong | Head | — | 74 | ~1866 |
| Robert Armstrong | Son | — | 44 | ~1896 |
| John Armstrong | Son | — | 55 | ~1885 |
Census Appearances
1920
Ashtabula, Ohio
Son, age 23
Ashtabula, Ohio · implied b. ~1897 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Armstrong |
| Given Name | Robert B. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Scotland |
| Occupation | Sign Painter |
| Industry | Own Business |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Ashtabula, Ohio
Son, age 32
Ashtabula, Ohio · implied b. ~1898 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Armstrong |
| Given Name | Robert B |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 32 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Scotland |
| Occupation | Painter |
| Industry | Signs |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Ashtabula-County, Ohio
Son, age 44
Ashtabula-County, Ohio · implied b. ~1896 — 3 household members
| Surname | Armstrong |
| Given Name | Robert B |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 44 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Saybrook Township |
| 1935 Residence (County) | Ashtabula |
| Hours Worked | 7 |
| Highest Grade | 7 |
| 1935 Residence | Same House |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
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: mother Helen Armstrong (~0.92 confidence) and father John Armstrong (~0.92 confidence) and mother Helen Armstrong (~0.60 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.81
Mother
Helen Armstrong
b. ~1866
Source mother
● Household
· direct · ~0.92
Father
John Armstrong
b. ~1866
Source father
● Household
· direct · ~0.92
Mother
Helen Armstrong
b. ~1886
Source mother
● Household
· direct · ~0.6
This person
Anchor record
Robert Armstrong
Son · 1940 · age 44 · b. ~1896 · Ohio
★ You are viewing this record
Sibling
John Armstrong
Sibling · 1940 · age 55
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 — Ashtabula-County, Ohio
Open full size
1940 US Federal Census — Ashtabula-County, Ohio
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03024-00878)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John Henry Broad | 53 | Head | Office Manager | Ohio |
| 2 | Edith Mae Broad | 51 | Wife | — | Ohio |
| 3 | Alice Powell | 70 | Head | — | Ohio |
| 4 | Frank S Powell | 38 | Son | Sailor | Ohio |
| 5 | Harriet Clover | 71 | Lodger | — | Ohio |
| 6 | Mrs. Floy Bixler | 54 | Lodger | — | Ohio |
| 7 | Helen Armstrong | 74 | Head | Practical Nurse | Scotland |
| 8 | John Elmer Armstrong | 55 | Son | — | Pennsylvania |
| 9 | Robert B Armstrong THIS PERSON | 44 | Son | — | Pennsylvania |
| 10 | Alfred Bailey | 31 | Head | Automobile Painter | Ohio |
| 11 | Dorothy Bailey | 32 | Wife | — | Ohio |
| 12 | Donabelle Bailey | 12 | Daughter | — | Ohio |
| 13 | Joan Bailey | 10 | Daughter | — | Ohio |
| 14 | Willis Bailey | 7 | Son | — | Ohio |
| 15 | Herbert Johnson | 38 | Head | Clerk | Ohio |
| 16 | Ella Mae Johnson | 32 | Wife | Billing Clerk | Pennsylvania |
| 17 | Harvey Mutt | 40 | Head | Auto Mechanic | Ohio |
| 18 | Annabelle Mutt | 37 | Wife | — | Ohio |
| 19 | Frank H Mutt | 16 | Son | — | Ohio |
| 20 | Betty Jean Mutt | 14 | Daughter | — | Ohio |
| 21 | Jean Ann Mutt | 3 | Daughter | — | Ohio |
| 22 | Raymond Lee Mutt | 0 | Son | — | Ohio |
| 23 | Robert E. Johnson | 31 | Head | Salesman | Ohio |
| 24 | Cathleen Johnson | 30 | Wife | — | Kansas |
| 25 | Karen Marie Johnson | 3 | Daughter | — | Ohio |
| 26 | Stanley S Gaumer | 43 | Head | Truck Driver | Pennsylvania |
| 27 | Isabel Mae Gaumer | 62 | Wife | — | England |
| 28 | Stanley Lewis Gaumer | 11 | Son | — | Ohio |
| 29 | Elizabeth Kitson | 28 | Lodger | Folder | Ohio |
| 30 | Howard Scarborough | 39 | Head | Store Keeper | Maryland |
| 31 | Marguerite Scarborough | 37 | Wife | — | Pennsylvania |
| 32 | Patricia Ann Scarborough | 9 | Daughter | — | Ohio |
| 33 | Stephen Greene | 33 | Head | Stock Clerk | Ohio |
| 34 | Marguerite Greene | 25 | Wife | — | Ohio |
| 35 | Marilyn Jean Greene | 2 | Daughter | — | Ohio |
| 36 | Patrick J. Longton | 63 | Head | — | Pennsylvania |
| 37 | James Leo Longton | 41 | Son | Office Clerk | West Virginia |
| 38 | Russell Pilkington | 45 | Head | Locomotive Engineer | Ohio |
| 39 | Helen Pilkington | 42 | Wife | — | Ohio |
| 40 | Jeanne I Pilkington | 20 | Daughter | Machine Operator | Ohio |
Pedigree Summary
Robert + 1 sibling
Gen 1 · 3 parents
~0.81
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)