RK
Robert Knight — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Blaine-County, Idaho
Our Model Tree links this Robert Knight across the 1930 and 1940 US Censuses in Blaine-County, Idaho (XGBoost, ~Confirmed) — first a son (b.~1929), then head of a 11-person household.
Age 11
b. ~1929
Male
Son
Born: Idaho
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Blaine-County, Idaho |
| Surname | Knight |
| Given Name | Robert V. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Idaho |
| 1935 Residence (City) | Hailey Precinct 2 |
| 1935 Residence (County) | Blaine |
| Additional Details | |
| Highest Grade | 4 |
| 1935 Residence | Same place |
| Birth State | Idaho |
| Birth Country | United States |
| Birthplace (normalized) | idaho |
| Township / Ward | Hailey Precinct 2 |
| Est. Birth Year | ~1929 |
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.
11 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Joyce Knight | Daughter | — | 2 | ~1938 |
| Marjorie Knight | Daughter | — | 14 | ~1926 |
| Andrew Knight | Head | — | 43 | ~1897 |
| Albert Knight | Son | — | 16 | ~1924 |
| Arnold Knight | Son | — | 1 | ~1939 |
| Robert Knight | Son | — | 11 | ~1929 |
| Johnny Knight | Son | — | 8 | ~1932 |
| Dean Knight | Son | — | 4 | ~1936 |
| David Knight | Son | — | 6 | ~1934 |
| Daniel Knight | Son | — | 17 | ~1923 |
| Doris Knight | Spouse | — | 39 | ~1901 |
Census Appearances
1930
Blaine, Idaho
Son, age 1
Blaine, Idaho · implied b. ~1929 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Knight |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Idaho |
| Father's Birthplace | Idaho |
| Mother's Birthplace | Idaho |
| Can Read/Write | No |
| Birth State | Idaho |
| Birth Country | United States |
| Birthplace (normalized) | idaho |
1940
Blaine-County, Idaho
Son, age 11
Blaine-County, Idaho · implied b. ~1929 — 11 household members
| Surname | Knight |
| Given Name | Robert V. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Idaho |
| 1935 Residence (City) | Hailey Precinct 2 |
| 1935 Residence (County) | Blaine |
| Highest Grade | 4 |
| 1935 Residence | Same place |
| Birth State | Idaho |
| Birth Country | United States |
| Birthplace (normalized) | idaho |
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 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Robert Knight
Son · 1940 · age 11 · b. ~1929 · Idaho
★ You are viewing this record
Sibling
Joyce Knight
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Daniel Knight
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Albert Knight
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dean Knight
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Johnny Knight
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Marjorie Knight
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Arnold Knight
Sibling · 1940 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
David Knight
Sibling · 1940 · age 6
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 — Blaine-County, Idaho
Open full size
1940 US Federal Census — Blaine-County, Idaho
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00739-00767)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Alfred D. Wardle | 31 | Head | Miner | England |
| 2 | Frances G. Wardle | 31 | Wife | — | Missouri |
| 3 | Robert Mcpherson | 27 | Head | Miner | California |
| 4 | Lucy G. Mcpherson | 23 | Wife | — | California |
| 5 | Robert R. Mcpherson | 2 | Son | — | Idaho |
| 6 | Kenneth E. Neff | 24 | Head | Manager | Idaho |
| 7 | Phyllis M. Neff | 18 | Wife | — | Idaho |
| 8 | Norman H. Maternitt | 28 | Head | Miner | Utah |
| 9 | Ada Maternitt | 23 | Wife | — | Utah |
| 10 | Norman L. Maternitt | 5 | Son | — | Utah |
| 11 | Robert L. Maternitt | 3 | Son | — | Utah |
| 12 | Teddy Maternitt | 2 | Son | — | Nevada |
| 13 | Lloyd E. Ayree | 38 | Head | Sorting Lumber | Nebraska |
| 14 | Selma V. Ayree | 34 | Wife | — | Nebraska |
| 15 | Lois Viola M. Ayree | 14 | Daughter | — | Utah |
| 16 | Cyril M. Ayree | 12 | Son | — | Utah |
| 17 | Charles J. Cutter | 62 | Head | Manager | Denmark |
| 18 | Lizzie D. Cutter | 42 | Wife | — | Nebraska |
| 19 | De Vere Young | 23 | Head | Miner | Idaho |
| 20 | Gladys B. Young | 22 | Wife | — | Utah |
| 21 | Theodore B. Cutter | 32 | Head | Carpenter | Utah |
| 22 | Cathy Belle Cutter | 20 | Wife | — | Idaho |
| 23 | Eddie Joe Cutter | 2 | Son | — | Idaho |
| 24 | Kenneth M. Chase | 18 | Brother-in-law | Laborer | Idaho |
| 25 | Stanley H. Cutter | 30 | Head | Sawyer | Utah |
| 26 | Rachel M. Cutter | 23 | Wife | — | Idaho |
| 27 | Phyllis K. Cutter | 1 | Daughter | — | Idaho |
| 28 | Andrew J. Knight | 43 | Head | Leaser | Idaho |
| 29 | Doris J. Knight | 39 | Wife | — | Idaho |
| 30 | Daniel D. Knight | 17 | Son | — | Idaho |
| 31 | Albert H. Knight | 16 | Son | — | Idaho |
| 32 | Marjorie J. Knight | 14 | Daughter | — | Idaho |
| 33 | Robert V. Knight THIS PERSON | 11 | Son | — | Idaho |
| 34 | Johnny E. Knight | 8 | Son | — | Idaho |
| 35 | David D. Knight | 6 | Son | — | Idaho |
| 36 | Dean A. Knight | 4 | Son | — | Idaho |
| 37 | Joyce M. Knight | 2 | Daughter | — | Idaho |
| 38 | Arnold L. Knight | 1 | Son | — | Idaho |
| 39 | Barley L. Mclarren | 26 | Head | Miner | Utah |
| 40 | Sarah J. Mclarren | 26 | Wife | — | Idaho |
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)