JK
John Knight — 1940 US Census Record
Model Tree available1940 United States Federal Census · Olmsted-County, Minnesota
Our Model Tree links this John Knight across the 1920, 1930 and 1940 US Censuses in Olmsted-County, Minnesota (XGBoost, ~Confirmed), with identified parents Alexander & Minnie — first a son (b.~1917), then head of a 6-person household.
Age 23
b. ~1917
Male
Son
Born: Minnesota
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Olmsted-County, Minnesota |
| Surname | Knight |
| Given Name | John A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Minnesota |
| 1935 Residence (City) | Rochester City |
| 1935 Residence (County) | Olmsted |
| Additional Details | |
| Occupation | Laborer |
| Class of Worker | PW |
| Income (1939) | 4 |
| Highest Grade | H 1 |
| 1935 Residence | Same place |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
| Occupation | Laborer |
| Township / Ward | Rochester City |
| 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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Alexander Knight | Head | — | 48 | ~1892 |
| Gerard Knight | Son | — | 20 | ~1920 |
| John Knight | Son | — | 23 | ~1917 |
| Erven Knight | Son | — | 17 | ~1923 |
| Walter Knight | Son | — | 15 | ~1925 |
| Minnie Knight | Spouse | — | 45 | ~1895 |
Census Appearances
1920
Olmsted, Minnesota
Son, age 2
Olmsted, Minnesota · implied b. ~1918 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Knight |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | New York |
| Mother's Birthplace | Minnesota |
| Can Read | No |
| Can Write | No |
| Speaks English | No |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1930
Olmsted, Minnesota
Son, age 12
Olmsted, Minnesota · implied b. ~1918 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Knight |
| Given Name | John A. |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | New York |
| Mother's Birthplace | Minnesota |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1940
Olmsted-County, Minnesota
Son, age 23
Olmsted-County, Minnesota · implied b. ~1917 — 6 household members
| Surname | Knight |
| Given Name | John A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Minnesota |
| 1935 Residence (City) | Rochester City |
| 1935 Residence (County) | Olmsted |
| Occupation | Laborer |
| Class of Worker | PW |
| Income (1939) | 4 |
| Highest Grade | H 1 |
| 1935 Residence | Same place |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
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 John Knight across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Alexander Knight (~0.92 confidence) and mother Minnie Knight (~0.92 confidence) and mother Minnie Knight (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Alexander Knight
b. ~1893
Source father
● Household
· direct · ~0.92
Mother
Minnie Knight
b. ~1895
Source mother
● Household
· direct · ~0.92
Mother
Minnie Knight
b. ~1896
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Knight
Son · 1940 · age 23 · b. ~1917 · Minnesota
★ You are viewing this record
Sibling
Walter Knight
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Erven Knight
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Gerard Knight
Sibling · 1940 · age 20
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 — Olmsted-County, Minnesota
Open full size
1940 US Federal Census — Olmsted-County, Minnesota
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01944-00659)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Raymond W. Young | 29 | Head | Salesman | Wisconsin |
| 2 | Lenore I. Young | 26 | Wife | Waitress | Minnesota |
| 3 | Thomas R. Young | 2 | Son | — | Minnesota |
| 4 | Fred H. Larsen | 52 | Head | Laborer | Denmark |
| 5 | Clara A. Larsen | 52 | Wife | — | Minnesota |
| 6 | Duane M. Larsen | 15 | Son | — | Minnesota |
| 7 | Alexander F. Knight | 48 | Head | Laborer | New York |
| 8 | Minnie R. Knight | 45 | Wife | — | Minnesota |
| 9 | John A. Knight THIS PERSON | 23 | Son | Laborer | Minnesota |
| 10 | Gerard R. Knight | 20 | Son | — | Minnesota |
| 11 | Erven F. Knight | 17 | Son | — | Minnesota |
| 12 | Walter D. Knight | 15 | Son | — | Minnesota |
| 13 | Julia Flumstein | 80 | Head | — | Germany |
| 14 | Edward J. Munster | 56 | Son | Carpenter | Minnesota |
| 15 | Emma G. Munster | 52 | Daughter | Housework | Minnesota |
| 16 | Joe E. Smith | 30 | Daughter | Housewife | South Dakota |
| 17 | Robert O. Smith | 6 | Son | — | Minnesota |
| 18 | Carolyn L. Smith | 4 | Daughter | — | Minnesota |
| 19 | Maurice B. Owens | 58 | Head | Hotel Employee | South Dakota |
| 20 | Mae S. Owens | 44 | Wife | — | Wisconsin |
| 21 | Dale C. Secrist | 36 | Head | Truck Driver | Illinois |
| 22 | Pearl M. Secrist | 31 | Wife | — | Iowa |
| 23 | Robert E. Secrist | 9 | Son | — | Minnesota |
| 24 | Richard L. Secrist | 8 | Son | — | Minnesota |
| 25 | Ralph D. Secrist | 6 | Son | — | Minnesota |
| 26 | Ray Sellers | 43 | Head | Cook | Illinois |
| 27 | Lester E. Lawrence | 26 | Roomer | Cab Driver | Minnesota |
| 28 | Viola B. Lawrence | 23 | Wife | Waitress | Minnesota |
| 29 | Esther L. Sellers | 26 | Wife | Waitress | Minnesota |
| 30 | Dennis V. Sellers | 4 | Son | — | Minnesota |
| 31 | George W. Harwick | 69 | Father | Farmer | Illinois |
| 32 | Louisa Harwick | 64 | Mother | — | Illinois |
| 33 | Leona M. Strummer | 27 | Wife | — | Minnesota |
| 34 | Arthur G. Strummer | 26 | Head | Laborer | Minnesota |
| 35 | Francis E. Power | 46 | Head | Poultry Cook | Minnesota |
| 36 | Ephy Welsher | 22 | Lodger | Waitress | Iowa |
| 37 | Evelyn Campbell | 21 | Lodger | Waitress | Wisconsin |
| 38 | Edward W. Bensch | 33 | Head | Laborer | Minnesota |
| 39 | Annie Bensch | 31 | Wife | — | Minnesota |
| 40 | Doris E. Bensch | 12 | Daughter | — | Minnesota |
Pedigree Summary
John + 3 siblings
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)