RK
Robert Knight — 1940 US Census Record
Model Tree available1940 United States Federal Census · Lucas-County, Ohio
Our Model Tree links this Robert Knight across the 1920, 1930 and 1940 US Censuses in Lucas-County, Ohio (XGBoost, ~Confirmed), with identified parents Frank & Helen — first a son (b.~1913), then head of a 4-person household.
Age 27
b. ~1913
Male
Son
Born: Ohio
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Lucas-County, Ohio |
| Surname | Knight |
| Given Name | Robert M. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Toledo |
| 1935 Residence (County) | Lucas |
| Additional Details | |
| Highest Grade | Hs 1 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Township / Ward | Toledo |
| Est. Birth Year | ~1913 |
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 |
|---|---|---|---|---|
| Frank Knight | Head | — | 56 | ~1884 |
| Gail Knight | Son | — | 24 | ~1916 |
| Robert Knight | Son | — | 27 | ~1913 |
| Helen Knight | Spouse | — | 53 | ~1887 |
Census Appearances
1920
Lucas, Ohio
Son, age 7
Lucas, Ohio · implied b. ~1913 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Knight |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Michigan |
| Mother's Birthplace | Michigan |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1930
Lucas, Ohio
Son, age 17
Lucas, Ohio · implied b. ~1913 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Knight |
| Given Name | Robert M. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Michigan |
| Mother's Birthplace | Michigan |
| Can Read/Write | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Lucas-County, Ohio
Son, age 27
Lucas-County, Ohio · implied b. ~1913 — 4 household members
| Surname | Knight |
| Given Name | Robert M. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Toledo |
| 1935 Residence (County) | Lucas |
| Highest Grade | Hs 1 |
| 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 Knight across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Frank Knight (~0.92 confidence) and mother Helen Knight (~0.92 confidence) and mother Nellie Knight (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Frank Knight
b. ~1884
Source father
● Household
· direct · ~0.92
Mother
Helen Knight
b. ~1887
Source mother
● Household
· direct · ~0.92
Mother
Nellie Knight
b. ~1887
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Knight
Son · 1940 · age 27 · b. ~1913 · Ohio
★ You are viewing this record
Sibling
Gail Knight
Sibling · 1940 · age 24
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 — Lucas-County, Ohio
Open full size
1940 US Federal Census — Lucas-County, Ohio
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03262-00913)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Charles Jr. Roberto | 20 | Son | Drafting | Ohio |
| 42 | Ruth M. Roberto | 18 | Daughter | — | Ohio |
| 43 | James E. Roberto | 16 | Son | Laborer | Ohio |
| 44 | Virginia J. Roberto | 14 | Daughter | — | Ohio |
| 45 | Donna M. Roberto | 11 | Daughter | — | Ohio |
| 46 | Kenneth C. Roberto | 10 | Son | — | Ohio |
| 47 | Ronald J. Roberto | 4 | Son | — | Ohio |
| 48 | Carol Ann Roberto | 3 | Daughter | — | Ohio |
| 49 | Frank F. Knight | 56 | Head | Greens-Keeper | Michigan |
| 50 | Helen L. Knight | 53 | Wife | — | Michigan |
| 51 | Robert M. Knight THIS PERSON | 27 | Son | — | Ohio |
| 52 | Gail F. Knight | 24 | Son | Machine Operator | Ohio |
| 53 | Robert A. Howard | 46 | Head | Millwright | Ohio |
| 54 | Alva B. Howard | 47 | Wife | Millinery Worker | Ohio |
| 55 | Walter G. Blodgett | 62 | Lodger | Caretaker | Ohio |
| 56 | Anthony Koperski | 44 | Head | Set-Up Man | Ohio |
| 57 | Frances Koperski | 41 | Wife | — | Poland |
| 58 | Raymond Koperski | 16 | Son | — | Ohio |
| 59 | Bernice Koperski | 14 | Daughter | — | Ohio |
| 60 | Felice Koperski | 12 | Daughter | — | Ohio |
| 61 | Adeline Koperski | 10 | Daughter | — | Ohio |
| 62 | Barbara Koperski | 4 | Daughter | — | Ohio |
| 63 | Sylvester Augustyniak | 34 | Lodger | Taxi Driver | Ohio |
| 64 | Ernest M. Kesterke | 49 | Head | Inspecting | Ohio |
| 65 | Etta M. Kesterke | 63 | Wife | — | Ohio |
| 66 | Wesley J. Bombrys | 29 | Head | Truck Driver | Ohio |
| 67 | Vern M. Bombrys | 28 | Wife | — | Ohio |
| 68 | Malcolm W. Bombrys | 5 | Son | — | Ohio |
| 69 | Keith E. Bombrys | 3 | Son | — | Ohio |
| 70 | James F. Cullenen | 76 | Head | — | Ohio |
| 71 | Minnie C. Cullenen | 77 | Wife | — | Germany |
| 72 | Kurt B. Schaerschmidt | 30 | Head | Machinist | Germany |
| 73 | Emma C. Schaerschmidt | 35 | Wife | — | Germany |
| 74 | Otto Posky | 40 | Lodger | Landscape Gardener | Germany |
| 75 | Alfred K. Schaerschmidt | 3 | Son | — | Ohio |
| 76 | Donald F. Schaerschmidt | 1 | Son | — | Ohio |
| 77 | Lee B. Kifford | 52 | Head | Laborer | Michigan |
| 78 | Sylvia N. Kifford | 25 | Wife | — | Indiana |
| 79 | Thomas C. Driver | 36 | Head | Truck Driver | North Carolina |
| 80 | Gertrude Driver | 34 | Wife | — | North Carolina |
Related Census Records
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)