MJ
Milton Johnson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Marion-County, Iowa
Our Model Tree links this Milton Johnson across the 1920, 1930 and 1940 US Censuses in Marion-County, Iowa (XGBoost, ~Confirmed), with identified parents Pearle & Joseph — first a son (b.~1920), then head of a 5-person household.
Age 20
b. ~1920
Male
Son
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Marion-County, Iowa |
| Surname | Johnson |
| Given Name | Milton Ash |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Knoxville City |
| 1935 Residence (County) | Marion |
| Additional Details | |
| Highest Grade | C 3 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Knoxville City |
| Est. Birth Year | ~1920 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Milton | Age | Birth yr |
|---|---|---|---|---|
| Milton Johnson | Son | — | 20 | ~1920 |
| Pearle Johnson | Spouse | — | 63 | ~1877 |
| L Johnson | Head | — | 61 | ~1879 |
| Craig Johnson | Son | — | 23 | ~1917 |
| Carroll Johnson | Son | — | 26 | ~1914 |
Census Appearances
1920
Marion, Iowa
Son, age 1
Marion, Iowa · implied b. ~1919 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Milton |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Marion, Iowa
Son, age 10
Marion, Iowa · implied b. ~1920 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Milton A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Marion-County, Iowa
Son, age 20
Marion-County, Iowa · implied b. ~1920 — 5 household members
| Surname | Johnson |
| Given Name | Milton Ash |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Knoxville City |
| 1935 Residence (County) | Marion |
| Highest Grade | C 3 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
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 Milton Johnson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Pearle Johnson (~0.92 confidence) and father Joseph Johnson (~0.92 confidence) and mother Pearl Johnson (~0.92 confidence) and father L Johnson (~0.92 confidence) and father Joseph Johnson (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Pearle Johnson
b. ~1877
Source mother
● Household
· direct · ~0.92
Father
Joseph Johnson
b. ~1878
Source father
● Household
· direct · ~0.92
Mother
Pearl Johnson
b. ~1878
Source mother
● Household
· direct · ~0.92
Father
L Johnson
b. ~1879
Source father
● Household
· direct · ~0.92
Father
Joseph Johnson
b. ~1880
Source father
● Household
· direct · ~0.92
This person
Anchor record
Milton Johnson
Son · 1940 · age 20 · b. ~1920 · Iowa
★ You are viewing this record
Sibling
Craig Johnson
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Carroll Johnson
Sibling · 1940 · age 26
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 — Marion-County, Iowa
Open full size
1940 US Federal Census — Marion-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01181-00186)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | George F. Tookey | 26 | Head | Teacher | Missouri |
| 42 | Helen Tookey | 24 | Wife | Teacher | Iowa |
| 43 | E. Vincent Tookey | 2 | Son | — | Iowa |
| 44 | Walter Keaty | 28 | Head | Plumber | Iowa |
| 45 | Lois O. Keaty | 24 | Wife | — | Iowa |
| 46 | Hester Freeman | 45 | Mother | Printer | Iowa |
| 47 | Loyis Richards | 35 | Lodger | Clerk | Iowa |
| 48 | J. O. Collins | 44 | Head | President | Iowa |
| 49 | Nelta G. Collins | 44 | Wife | — | Iowa |
| 50 | Dorothy A. Collins | 19 | Daughter | — | Iowa |
| 51 | Mable Scheel | 70 | Mother | Teacher | Iowa |
| 52 | Walter Brill | 20 | Lodger | Clerk | Iowa |
| 53 | Bert Scott | 49 | Head | Attendant | Virginia |
| 54 | Naomi Scott | 33 | Wife | — | Iowa |
| 55 | James Scott | 8 | Son | — | Iowa |
| 56 | Herbert Pine | 42 | Head | Barber | Iowa |
| 57 | Jennie O. Pine | 38 | Wife | — | Iowa |
| 58 | Herbert Keith Pine | 14 | Son | — | Iowa |
| 59 | Gid Tuhr | 45 | Head | Barber | Iowa |
| 60 | Fay Tuhr | 46 | Wife | Doctor'S Assist | Iowa |
| 61 | Paul Riddle | 42 | Head | Chief | Iowa |
| 62 | Ruth Riddle | 42 | Wife | — | Iowa |
| 63 | Margaret Riddle | 18 | Daughter | — | Iowa |
| 64 | Granville Nutter | 47 | Head | Miner | Iowa |
| 65 | Elizabeth Nutter | 46 | Wife | — | Iowa |
| 66 | Katherine Livingston | 28 | Step Daughter | — | Iowa |
| 67 | L. H. Johnson | 61 | Head | Attorney Law | Iowa |
| 68 | Pearle Johnson | 63 | Wife | — | Iowa |
| 69 | Carroll Johnson | 26 | Son | Attorney Law | Iowa |
| 70 | Craig Bob Johnson | 23 | Son | — | Iowa |
| 71 | Milton Ash Johnson THIS PERSON | 20 | Son | — | Iowa |
| 72 | W. O. Nutt | 29 | Head | Teacher | Iowa |
| 73 | Katherine Nutt | 26 | Wife | Teacher | Iowa |
| 74 | W. Grate | 38 | Head | Auditor | Wisconsin |
| 75 | Delerta Grate | 43 | Wife | Cashier | Iowa |
| 76 | Theron Grate | 17 | Son | Delivery Boy | Iowa |
| 77 | Jeanne Grate | 15 | Daughter | — | Iowa |
| 78 | Gloria Grate | 13 | Daughter | — | Iowa |
| 79 | John Mccaughley | 84 | Father | — | Indiana |
| 80 | Mary Mccaughley | 82 | Mother | — | Indiana |
Pedigree Summary
Milton + 2 siblings
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)