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Robert Ross — 1940 US Census Record
Model Tree available1940 United States Federal Census · Hamilton-County, Ohio
Our Model Tree links this Robert Ross across the 1920, 1930 and 1940 US Censuses in Hamilton-County, Ohio (XGBoost, ~Confirmed), with identified parents Frank & Mary — first a son (b.~1917), then head of a 3-person household.
Age 23
b. ~1917
Male
Son
Born: Ohio
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Hamilton-County, Ohio |
| Surname | Ross |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Cincinnati |
| 1935 Residence (County) | Hamilton |
| Additional Details | |
| Occupation | Building Maintenance |
| Industry | Public Building |
| Class of Worker | PW |
| Hours Worked | 42 |
| Income (1939) | 960 |
| Highest Grade | H 2 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Occupation | Building Maintenance |
| Township / Ward | Cincinnati |
| Est. Birth Year | ~1917 |
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 |
|---|---|---|---|---|
| Frank Ross | Head | — | 70 | ~1870 |
| Robert Ross | Son | — | 23 | ~1917 |
| Mary Ross | Spouse | — | 62 | ~1878 |
Census Appearances
1920
Hamilton, Ohio
Son, age 3
Hamilton, Ohio · implied b. ~1917 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Ross |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Pennsylvania |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1930
Hamilton, Ohio
Son, age 13
Hamilton, Ohio · implied b. ~1917 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Ross |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Pennsylvania |
| Can Read/Write | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Hamilton-County, Ohio
Son, age 23
Hamilton-County, Ohio · implied b. ~1917 — 3 household members
| Surname | Ross |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Cincinnati |
| 1935 Residence (County) | Hamilton |
| Occupation | Building Maintenance |
| Industry | Public Building |
| Class of Worker | PW |
| Hours Worked | 42 |
| Income (1939) | 960 |
| Highest Grade | H 2 |
| 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 Ross across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Frank Ross (~0.92 confidence) and mother Mary Ross (~0.92 confidence) and father John Ross (~0.92 confidence) and mother Sue Ross (~0.92 confidence) and mother Sue Ross (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Frank Ross
b. ~1870
Source father
● Household
· direct · ~0.92
Mother
Mary Ross
b. ~1878
Source mother
● Household
· direct · ~0.92
Father
John Ross
b. ~1885
Source father
● Household
· direct · ~0.92
Mother
Sue Ross
b. ~1889
Source mother
● Household
· direct · ~0.92
Mother
Sue Ross
b. ~1889
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Ross
Son · 1940 · age 23 · b. ~1917 · Ohio
★ 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 — Hamilton-County, Ohio
Open full size
1940 US Federal Census — Hamilton-County, Ohio
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03187-00518)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Edwin P. Steward | 45 | Head | Butler | Kentucky |
| 2 | Anna Lee Steward | 40 | Wife | — | Kentucky |
| 3 | Kezzie Griffis | 66 | Mother-in-law | — | Kentucky |
| 4 | Benjamin Willis | 69 | Head | Cuddler | Kentucky |
| 5 | Viola Willis | 64 | Wife | — | Kentucky |
| 6 | Julius Board | 61 | Head | Janitor | Ohio |
| 7 | Maggie Board | 47 | Wife | — | Kentucky |
| 8 | Alice Board | 21 | Nephew | Porter | Ohio |
| 9 | Isaac Board | 15 | Nephew | — | Ohio |
| 10 | Maggie Board | 14 | Niece | — | Ohio |
| 11 | Susan Board | 12 | Niece | — | Ohio |
| 12 | William Board | 10 | Nephew | — | Ohio |
| 13 | Julia Christine Board | 11 | Niece | — | Ohio |
| 14 | Rose Kelsch | 60 | Head | House Work | Ohio |
| 15 | Frank X. Ross | 70 | Head | Crane Demolisher | Ohio |
| 16 | Mary B. Ross | 62 | Wife | — | Ohio |
| 17 | Robert Ross THIS PERSON | 23 | Son | Building Maintenance | Ohio |
| 18 | Jacob Faber | 44 | Head | Sheet Metal | Hungary |
| 19 | Eva Faber | 51 | Wife | — | Hungary |
| 20 | Michael Keifer | 83 | Father-in-law | — | Hungary |
| 21 | Martin Harris | 52 | Head | Minister | Tennessee |
| 22 | Adelaide Harris | 40 | Wife | — | Tennessee |
| 23 | Jessie Corp | 48 | Head | Stoker | Tennessee |
| 24 | Susie Corp | 48 | Wife | Janitress | Kentucky |
| 25 | Richard Corp | 12 | Son | — | Ohio |
| 26 | Charles Huguly | 35 | Head | Messenger | Kentucky |
| 27 | Murphy Huguly | 36 | Wife | Beauty Operator | Kentucky |
| 28 | Lillian Huguly | 4 | Daughter | — | Ohio |
| 29 | Lillian Huguly | 1 | Daughter | — | Ohio |
| 30 | Lucille Rousseau | 18 | Sister-in-law | — | Kentucky |
| 31 | Adam Kohl | 51 | Head | Machinist | Hungary |
| 32 | Susanna Kohl | 54 | Wife | — | Hungary |
| 33 | Balthasar Kohl | 31 | Son | Bartender | Ohio |
| 34 | Eleanor Kohl | 24 | Wife | Clerk | Ohio |
| 35 | Barbara Kohl | 27 | Daughter | — | Ohio |
| 36 | Henrietta Keith | 28 | Head | Elevator Operator | Ohio |
| 37 | Marjorie Keith | 5 | Daughter | — | Ohio |
| 38 | Amelia Young | 23 | Lodger | Maid | Ohio |
| 39 | Simon Craig | 32 | Head | Cook | Ohio |
| 40 | Roberta Craig | 25 | Wife | — | Ohio |
Pedigree Summary
Robert
Gen 1 · 5 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)