RA
Robert Arnold — 1940 US Census Record
Model Tree available1940 United States Federal Census · Reno-County, Kansas
Our Model Tree links this Robert Arnold across the 1920, 1930 and 1940 US Censuses in Reno-County, Kansas (XGBoost, ~Confirmed), with identified parents Robert & Bob — first a son (b.~1919), then head of a 4-person household.
Age 21
b. ~1919
Male
Son
Born: Kansas
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Reno-County, Kansas |
| Surname | Arnold |
| Given Name | Robert I. Jr. |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Kansas |
| 1935 Residence (City) | Medford Twp |
| 1935 Residence (County) | Reno |
| Additional Details | |
| Occupation | laborer |
| Industry | Farm |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 100 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
| Occupation | Laborer |
| Township / Ward | Medford Twp |
| Est. Birth Year | ~1919 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Harry Arnold | Son | — | 14 | ~1926 |
| Lena Arnold | Spouse | — | 52 | ~1888 |
| Robert Arnold | Son | — | 21 | ~1919 |
| Robert Arnold | Head | — | 60 | ~1880 |
Census Appearances
1920
Reno, Kansas
Son, age
Reno, Kansas · implied b. ~1920 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Arnold |
| Given Name | Robert G |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Kansas |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Kansas |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
1930
Reno, Kansas
Son, age 11
Reno, Kansas · implied b. ~1919 — 33 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Arnold |
| Given Name | Robert L |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Kansas |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Kansas |
| Can Read/Write | Yes |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
1940
Reno-County, Kansas
Son, age 21
Reno-County, Kansas · implied b. ~1919 — 4 household members
| Surname | Arnold |
| Given Name | Robert I. Jr. |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Kansas |
| 1935 Residence (City) | Medford Twp |
| 1935 Residence (County) | Reno |
| Occupation | laborer |
| Industry | Farm |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 100 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
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 Robert Arnold (~0.92 confidence) and father Bob Arnold (~0.92 confidence) and mother Lena Arnold (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Robert Arnold
b. ~1880
Source father
● Household
· direct · ~0.92
Father
Bob Arnold
b. ~1881
Source father
● Household
· direct · ~0.92
Mother
Lena Arnold
b. ~1888
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Arnold
Son · 1940 · age 21 · b. ~1919 · Kansas
★ You are viewing this record
Sibling
Harry Arnold
Sibling · 1940 · age 14
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 — Reno-County, Kansas
Open full size
1940 US Federal Census — Reno-County, Kansas
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01254-00083)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Millard M. Ballard | 22 | Son | Laborer | Kansas |
| 2 | Katherine Ballard | 19 | daughter | — | Kansas |
| 3 | Eli R. Seitz | 37 | head | Farmer | Kansas |
| 4 | Minnie R. Seitz | 32 | wife | — | Kansas |
| 5 | Elvon F. Seitz | 3 | son | — | Kansas |
| 6 | Donald L. Troth | 28 | head | Farmer | Kansas |
| 7 | Ethel Lenore Troth | 26 | wife | — | Nebraska |
| 8 | Gary Dean Troth | 5 | son | — | Kansas |
| 9 | Bessie Ditgen | 54 | head | Farmer | Kansas |
| 10 | Earl Ditgen | 20 | son | Farmer | Kansas |
| 11 | Robert I. Arnold | 60 | head | Farmer | Penn. |
| 12 | Lena Arnold | 52 | wife | — | Kansas |
| 13 | Robert I. Jr. Arnold THIS PERSON | 21 | son | Laborer | Kansas |
| 14 | Harry I. Arnold | 14 | son | — | Kansas |
| 15 | Elmer E. Wilkey | 27 | head | Farmer | Kansas |
| 16 | Arthur Ewing | 20 | lodger | Laborer | Kansas |
| 17 | Vernon W. Barber | 43 | head | Farmer | Kansas |
| 18 | Edith Coleen Barber | 42 | wife | — | Kansas |
| 19 | Phyllis Barber | 17 | daughter | — | Kansas |
| 20 | Hubert Barber | 15 | son | — | Kansas |
| 21 | Francis Barber | 13 | daughter | — | Kansas |
| 22 | Dan Barber | 9 | son | — | Kansas |
| 23 | John Flickinger | 78 | head | — | Russia |
| 24 | Elizabeth Flickinger | 76 | Wife | — | Ill. |
| 25 | Ruth Flickinger | 41 | daughter | — | Kansas |
| 26 | William J. Considine | 65 | head | Farmer | New Brunswick |
| 27 | Ella M. Considine | 60 | wife | — | Kansas |
| 28 | Clarence A. Considine | 18 | son | Farmer | Kansas |
| 29 | Howard W. Johnson | 58 | head | Farmer | Maryland |
| 30 | Rosa B. Johnson | 56 | wife | — | Ill. |
| 31 | Ada B. Johnson | 19 | daughter | Farmer | Kansas |
| 32 | Arthur E. Snook | 52 | head | Farmer | Ohio |
| 33 | Rachel P. Snook | 80 | mother | — | Ohio |
| 34 | Ervin F. Justis | 34 | head | Farmer | Kansas |
| 35 | Gertrude Justis | 32 | wife | — | Kansas |
| 36 | William P. Brooks | 76 | head | Farmer | Kansas |
| 37 | Ora Brooks | 57 | wife | — | Kansas |
| 38 | Earl Brooks | 40 | son | Farmer | Kansas |
| 39 | Mark J. Mcdonigal | 25 | Head | Farmer | Kansas |
| 40 | Marion R. Mcdonigal | 23 | wife | — | Kansas |
Pedigree Summary
Robert + 1 sibling
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)