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Frank Johnston — 1940 US Census Record
Model Tree available1940 United States Federal Census · Jefferson-County, Iowa
Our Model Tree links this Frank Johnston across the 1920, 1930 and 1940 US Censuses in Jefferson-County, Iowa (XGBoost, ~Confirmed), with identified parents Fred & Fred — first a son (b.~1918), then head of a 8-person household.
Age 22
b. ~1918
Male
Son
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Jefferson-County, Iowa |
| Surname | Johnston |
| Given Name | Frank |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Van Buren |
| Additional Details | |
| Occupation | Farm Laborer |
| Industry | Farming |
| Class of Worker | PW |
| Hours Worked | 72 |
| Income (1939) | 0 |
| Highest Grade | H 4 |
| 1935 Residence | Iowa |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Farm Laborer |
| Township / Ward | Des Moines Township |
| Est. Birth Year | ~1918 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Frank | Age | Birth yr |
|---|---|---|---|---|
| Frank Johnston | Son | — | 22 | ~1918 |
| Dixie Johnston | Daughter | — | 8 | ~1932 |
| Maude Lee | Spouse | — | 49 | ~1891 |
| Elnora Johnston | Spouse | — | 49 | ~1891 |
| Betty Johnston | Daughter | — | 20 | ~1920 |
| Walter Johnston | Son | — | 27 | ~1913 |
| Fred Johnston | Head | — | 54 | ~1886 |
| Martha Johnston | Daughter | — | 13 | ~1927 |
Census Appearances
1920
Jefferson, Iowa
Son, age 2
Jefferson, Iowa · implied b. ~1918 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnston |
| Given Name | Frank M |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Jefferson, Iowa
Son, age 12
Jefferson, Iowa · implied b. ~1918 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnston |
| Given Name | Frank |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| 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
Jefferson-County, Iowa
Son, age 22
Jefferson-County, Iowa · implied b. ~1918 — 8 household members
| Surname | Johnston |
| Given Name | Frank |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Van Buren |
| Occupation | Farm Laborer |
| Industry | Farming |
| Class of Worker | PW |
| Hours Worked | 72 |
| Income (1939) | 0 |
| Highest Grade | H 4 |
| 1935 Residence | Iowa |
| 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 Frank Johnston across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Fred Johnston (~0.92 confidence) and father Fred Johnston (~0.92 confidence) and father T Johnston (~0.92 confidence) and mother Effie Johnston (~0.92 confidence) and mother Effie Johnston (~0.92 confidence) and mother Elnora Johnston (~0.92 confidence) and mother Maude Lee (~0.92 confidence). The pedigree spans 1 generation with 7 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Fred Johnston
b. ~1887
Source father
● Household
· direct · ~0.92
Father
Fred Johnston
b. ~1886
Source father
● Household
· direct · ~0.92
Father
T Johnston
b. ~1887
Source father
● Household
· direct · ~0.92
Mother
Effie Johnston
b. ~1891
Source mother
● Household
· direct · ~0.92
Mother
Effie Johnston
b. ~1895
Source mother
● Household
· direct · ~0.92
Mother
Elnora Johnston
b. ~1891
Source mother
● Household
· direct · ~0.92
Mother
Maude Lee
b. ~1891
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Frank Johnston
Son · 1940 · age 22 · b. ~1918 · Iowa
★ You are viewing this record
Sibling
Walter Johnston
Sibling · 1940 · age 27
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dixie Johnston
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Betty Johnston
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Martha Johnston
Sibling · 1940 · age 13
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 — Jefferson-County, Iowa
Open full size
1940 US Federal Census — Jefferson-County, Iowa
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-01170-00086)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | George Tedrow | 48 | Head | Farmer | Iowa |
| 2 | Arthur Tedrow | 20 | Son | Farm Laborer | Iowa |
| 3 | Russell Taylor | 36 | Head | Farmer | Iowa |
| 4 | Willa Taylor | 34 | Wife | — | Iowa |
| 5 | Mary Margaret Taylor | 9 | Daughter | — | Iowa |
| 6 | James Howard Taylor | 8 | Son | — | Iowa |
| 7 | Russell Jr Taylor | 4 | Son | — | Iowa |
| 8 | Linda Ann Taylor | 2 | Daughter | — | Iowa |
| 9 | Jesse Manning | 54 | Head | Farmer | Iowa |
| 10 | Catharine Manning | 52 | Wife | — | Iowa |
| 11 | Kathalene Manning | 21 | Daughter | Telephone Office | Iowa |
| 12 | Fred L Johnston | 54 | Head | Farmer | Iowa |
| 13 | Elnora Johnston | 49 | Wife | — | Iowa |
| 14 | Walter H Johnston | 27 | Son | Physically Disabled | Iowa |
| 15 | Frank Johnston THIS PERSON | 22 | Son | Farm Laborer | Iowa |
| 16 | Betty Sue Johnston | 20 | Daughter | Nurse Training | Iowa |
| 17 | Martha E Johnston | 13 | Daughter | — | Iowa |
| 18 | Dixie P Johnston | 8 | Daughter | — | Iowa |
| 19 | Maude Lee | 49 | Wife | — | Iowa |
| 20 | Clarence Lee | 57 | Head | Farmer | Iowa |
| 21 | Harold Lee | 13 | Son | — | Iowa |
| 22 | R J Leubbage | 58 | Head | Farmer | Illinois |
| 23 | Cora E Leubbage | 57 | Wife | — | Iowa |
| 24 | Eugene Leubbage | 19 | Son | Farmer | Iowa |
| 25 | Robert Leubbage | 14 | Son | — | Iowa |
| 26 | Harold Leubbage | 34 | Head | Farmer | Illinois |
| 27 | Lydia Leubbage | 44 | Wife | — | Iowa |
| 28 | Ray A Emmons | 61 | Head | Farmer | Iowa |
| 29 | Augusta E Emmons | 87 | Mother | Invalid | Indiana |
| 30 | Grace L Emmons | 66 | Sister | House Keeper | Wisconsin |
| 31 | James M Tenel | 47 | Head | Farmer | Iowa |
| 32 | Grace M Tenel | 46 | Wife | — | Iowa |
| 33 | Vernita Tedrow | 26 | Daughter | — | Iowa |
| 34 | Rex Tedrow | 6 | Grandson | — | Iowa |
| 35 | Gerald Tedrow | 2 | Grandson | — | Iowa |
| 36 | Kenneth L Fordyce | 27 | Head | Farmer | Iowa |
| 37 | Elinor Fordyce | 24 | Wife | — | Iowa |
| 38 | Son Fordyce | 2 | Son | — | Iowa |
| 39 | Francis Ernest Davidson | 31 | Farm helper | Hired Hand | Iowa |
Pedigree Summary
Frank + 4 siblings
Gen 1 · 7 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)