MJ
Marjorie Johnson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Knox-County, Illinois
Our Model Tree links this Marjorie Johnson across the 1930 and 1940 US Censuses in Knox-County, Illinois (XGBoost, ~Confirmed) — first a daughter (b.~1925), then head of a 10-person household.
Age 15
b. ~1925
Female
Daughter
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Knox-County, Illinois |
| Surname | Johnson |
| Given Name | Marjorie |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Galesburg City |
| 1935 Residence (County) | Knox |
| Additional Details | |
| Occupation | S |
| Income (1939) | 0 |
| Highest Grade | H-1 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | S |
| Township / Ward | Galesburg City |
| Est. Birth Year | ~1925 |
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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Marjorie | Age | Birth yr |
|---|---|---|---|---|
| Patricia Johnson | Daughter | — | 9 | ~1931 |
| Erlyne Johnson | Daughter | — | 18 | ~1922 |
| Albert Johnson | Son | — | 15 | ~1925 |
| Earl Johnson | Son | — | 12 | ~1928 |
| Richard Johnson | Son | — | 2 | ~1938 |
| Earl Johnson | Head | — | 41 | ~1899 |
| Evelyn Johnson | Daughter | — | 20 | ~1920 |
| Marjorie Johnson | Daughter | — | 15 | ~1925 |
| Theresa Johnson | Daughter | — | 6 | ~1934 |
| Mildred Johnson | Spouse | — | 39 | ~1901 |
Census Appearances
1930
Knox, Illinois
Daughter, age 6
Knox, Illinois · implied b. ~1924 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Marjorie J. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Knox-County, Illinois
Daughter, age 15
Knox-County, Illinois · implied b. ~1925 — 10 household members
| Surname | Johnson |
| Given Name | Marjorie |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Galesburg City |
| 1935 Residence (County) | Knox |
| Occupation | S |
| Income (1939) | 0 |
| Highest Grade | H-1 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
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 Marjorie Johnson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Marjorie Johnson
Daughter · 1940 · age 15 · b. ~1925 · Illinois
★ You are viewing this record
Sibling
Patricia Johnson
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Richard Johnson
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Evelyn Johnson
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Albert Johnson
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Earl Johnson
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Theresa Johnson
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Erlyne Johnson
Sibling · 1940 · age 18
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 — Knox-County, Illinois
Open full size
1940 US Federal Census — Knox-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00826-00608)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Sheldon Botruff | 22 | Head | Salesman | Illinois |
| 42 | Marian Botruff | 21 | Wife | H | Illinois |
| 43 | Mary Lucille Botruff | 2 | Daughter | — | Illinois |
| 44 | Ethel E. Shannon | 58 | Head | Laundry Work | Illinois |
| 45 | Louie Botruff | 82 | Mother | U | Illinois |
| 46 | Arthur Lamb | 49 | Head | Brakeman | Missouri |
| 47 | Clara Lamb | 44 | Wife | H | Iowa |
| 48 | Arthur H. Lamb | 24 | Son | Inspector | Illinois |
| 49 | Earl R. Johnson | 41 | Head | Fireman | Illinois |
| 50 | Mildred Johnson | 39 | Wife | H | Illinois |
| 51 | Evelyn Johnson | 20 | Daughter | Waitress | Illinois |
| 52 | Erlyne Johnson | 18 | Daughter | Entertainer | Illinois |
| 53 | Marjorie Johnson THIS PERSON | 15 | Daughter | S | Illinois |
| 54 | Albert Johnson | 15 | Son | S | Illinois |
| 55 | Earl Jr. Johnson | 12 | Son | — | Illinois |
| 56 | Patricia Johnson | 9 | Daughter | — | Illinois |
| 57 | Theresa Johnson | 6 | Daughter | — | Illinois |
| 58 | Richard Johnson | 2 | Son | — | Illinois |
| 59 | Lencott Evans | 62 | Head | Yard Clerk | Maryland |
| 60 | Carolyn Evans | 62 | Wife | H | Illinois |
| 61 | Lawrence A. Cannon | 33 | Head | Cement Finisher | Illinois |
| 62 | Vada Cannon | 38 | Wife | H | Illinois |
| 63 | Robert Hanforth | 17 | Step-son | S | Illinois |
| 64 | Donald Hanforth | 15 | Step-son | S | Illinois |
| 65 | Abraham Terpening | 42 | Head | Bookkeeper | Illinois |
| 66 | John Terpening | 69 | Father | — | Missouri |
| 67 | Emma Terpening | 64 | Mother | H | Illinois |
| 68 | Bruce Terpening | 21 | Brother | Laborer | Illinois |
| 69 | Oscar Nelson | 43 | Head | Clerk | Sweden |
| 70 | Gertrude Nelson | 44 | Wife | H | Illinois |
| 71 | Harlie Nelson | 23 | Son | New Worker | Illinois |
| 72 | Clifford Young | 37 | Head | Bus Operator | Illinois |
| 73 | Helen Young | 38 | Wife | Seamstress | Illinois |
| 74 | Martha J. Smith | 71 | Head | Real Estate | Illinois |
| 75 | Amelia Brimhall | 58 | Head | Teacher Of Public Speaking | Illinois |
| 76 | Ernest A. Olson | 44 | Head | Carman | Illinois |
| 77 | Edris M. Olson | 43 | Wife | H | Illinois |
| 78 | Marilyn Olson | 12 | Daughter | — | Illinois |
| 79 | Ronald E. Olson | 11 | Son | — | Illinois |
| 80 | Edward M. Everitt | 79 | Head | — | Illinois |
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)