RA
Robert Arnold — 1940 US Census Record
Model Tree available1940 United States Federal Census · Franklin-County, Pennsylvania
Our Model Tree links this Robert Arnold across the 1920, 1930 and 1940 US Censuses in Franklin-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents Barney & L — first a son (b.~1911), then head of a 8-person household.
Age 29
b. ~1911
Male
Son
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Franklin-County, Pennsylvania |
| Surname | Arnold |
| Given Name | Robert B. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | St. Thomas |
| 1935 Residence (County) | Franklin |
| Additional Details | |
| Occupation | School-teacher |
| Industry | Grade School |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 800 |
| Highest Grade | C 4 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | School-Teacher |
| Township / Ward | St Thomas |
| Est. Birth Year | ~1911 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Robert Arnold | Son | — | 29 | ~1911 |
| Keyan Cantion | Other | — | 50 | ~1890 |
| Katherine Arnold | Daughter | — | 32 | ~1908 |
| Martha Arnold | Daughter | — | 25 | ~1915 |
| Marie Arnold | Daughter | — | 22 | ~1918 |
| Lewis Arnold | Head | — | 56 | ~1884 |
| Floyd Arnold | Son | — | 31 | ~1909 |
| Mary Arnold | Spouse | — | 54 | ~1886 |
Census Appearances
1920
Franklin, Pennsylvania
Son, age 8
Franklin, Pennsylvania · implied b. ~1912 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Arnold |
| Given Name | Robert B. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Franklin, Pennsylvania
Son, age 19
Franklin, Pennsylvania · implied b. ~1911 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Arnold |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Franklin-County, Pennsylvania
Son, age 29
Franklin-County, Pennsylvania · implied b. ~1911 — 8 household members
| Surname | Arnold |
| Given Name | Robert B. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | St. Thomas |
| 1935 Residence (County) | Franklin |
| Occupation | School-teacher |
| Industry | Grade School |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 800 |
| Highest Grade | C 4 |
| 1935 Residence | Same place |
| 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 Arnold across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Barney Arnold (~0.92 confidence) and father L Arnold (~0.92 confidence) and mother Mary Arnold (~0.92 confidence) and mother Mary Arnold (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Barney Arnold
b. ~1884
Source father
● Household
· direct · ~0.92
Father
L Arnold
b. ~1884
Source father
● Household
· direct · ~0.92
Mother
Mary Arnold
b. ~1886
Source mother
● Household
· direct · ~0.92
Mother
Mary Arnold
b. ~1887
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Arnold
Son · 1940 · age 29 · b. ~1911 · Pennsylvania
★ You are viewing this record
Sibling
Katherine Arnold
Sibling · 1940 · age 32
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Floyd Arnold
Sibling · 1940 · age 31
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Marie Arnold
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Martha Arnold
Sibling · 1940 · age 25
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 — Franklin-County, Pennsylvania
Open full size
1940 US Federal Census — Franklin-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03510-00424)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Edward J. O'Brien | 50 | Head | Operator | Illinois |
| 2 | Leanna C. O'Brien | 40 | Wife | — | Illinois |
| 3 | Shirley E. O'Brien | 10 | Daughter | — | Illinois |
| 4 | James E. O'Brien | 9 | Son | — | Pennsylvania |
| 5 | Helena H. Hoffman | 64 | Wife's Mother | — | New York |
| 6 | Tony C. Cinti | 39 | Lodger | Labor | Italy |
| 7 | Lewis B. Arnold | 56 | Head | Farmer | Pennsylvania |
| 8 | Mary E. Arnold | 54 | Wife | — | Pennsylvania |
| 9 | Katherine E. Arnold | 32 | Daughter | Seamstress | Pennsylvania |
| 10 | Floyd E. Arnold | 31 | Son | Farmer | Pennsylvania |
| 11 | Robert B. Arnold THIS PERSON | 29 | Son | School-Teacher | Pennsylvania |
| 12 | Martha R. Arnold | 25 | Daughter | — | Pennsylvania |
| 13 | Marie L. Arnold | 22 | Daughter | — | Pennsylvania |
| 14 | Keyan R. Cantion | 50 | Hired help | Fishing | Pennsylvania |
| 15 | Raymond H. Catt | 30 | Head | Dealer | Pennsylvania |
| 16 | Dorothy M. Catt | 31 | Wife | — | Pennsylvania |
| 17 | Robert E. Catt | 11 | Son | — | Pennsylvania |
| 18 | Rebecca L. Catt | 8 | Daughter | — | Pennsylvania |
| 19 | Samuel H. W. Catt | 65 | Father | Attendant | Pennsylvania |
| 20 | Amos Bender | 60 | Head | Salesman | Pennsylvania |
| 21 | Mary V. Bender | 54 | Wife | — | Pennsylvania |
| 22 | Thelma P. Bender | 22 | Daughter | — | Pennsylvania |
| 23 | Earl M. Thornberry | 27 | Head | Clerical | Pennsylvania |
| 24 | Mary C. Thornberry | 19 | Daughter | — | Pennsylvania |
| 25 | John H. Frice | 56 | Head | Farmer | Pennsylvania |
| 26 | Ora C. Frice | 57 | Wife | — | Pennsylvania |
| 27 | Charles D. Frice | 27 | Son | Carpenter | Pennsylvania |
| 28 | Grace C. Frice | 15 | Daughter | — | Pennsylvania |
| 29 | Ray Armstrong | 33 | Head | Farmer | Pennsylvania |
| 30 | Ruth F. Armstrong | 35 | Wife | — | Pennsylvania |
| 31 | Lois G. Armstrong | 4 | Daughter | — | Pennsylvania |
| 32 | John E. Armstrong | 2 | Son | — | Pennsylvania |
| 33 | James Ginger | 23 | Hired help | Farm Work | Pennsylvania |
| 34 | John F. Wolfkill | 71 | Head | Farming | Pennsylvania |
| 35 | Hattie M. Wolfkill | 45 | Wife | — | Pennsylvania |
| 36 | M. Elizabeth Stambaugh | 12 | Cousin | — | Pennsylvania |
| 37 | Clarence N. Rife | 39 | Head | Farming | Pennsylvania |
| 38 | Ruth E. Rife | 37 | Wife | — | Pennsylvania |
| 39 | John E. Rife | 15 | Son | Farming | Pennsylvania |
| 40 | Glenna F. Rife | 14 | Son | School | Pennsylvania |
Pedigree Summary
Robert + 4 siblings
Gen 1 · 4 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)