MJ
May Johnson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cerro-Gordo-County, Iowa
Our Model Tree links this May Johnson across the 1910, 1920, 1930 and 1940 US Censuses in Cerro-Gordo-County, Iowa (XGBoost, ~Confirmed) — first a spouse (b.~1887), then head of a 3-person household.
Age 53
b. ~1887
Female
Spouse
Born: Iowa
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cerro-Gordo-County, Iowa |
| Surname | Johnson |
| Given Name | May |
| Relationship to Head | wife |
| Sex | F |
| Color / Race | White |
| Age | 53 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Bath twp |
| 1935 Residence (County) | Cerro Gordo |
| Additional Details | |
| Industry | H |
| Class of Worker | 0 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Bath Twp |
| Est. Birth Year | ~1887 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to May | Age | Birth yr |
|---|---|---|---|---|
| Jessie Johnson | Head | — | 57 | ~1883 |
| May Johnson | Spouse | — | 53 | ~1887 |
| Leroy Johnson | Son | — | 36 | ~1904 |
Census Appearances
1910
Cerro Gordo, …
Spouse, age 23
Cerro Gordo, Iowa · implied b. ~1887 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | May |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 23 |
| Marital Status | Married |
| Birthplace | Iowa |
| Years Married | 2 |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Wisconsin |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1920
Cerro Gordo, …
Spouse, age 33
Cerro Gordo, Iowa · implied b. ~1887 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | May |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Iowa |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Wisconsin |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Cerro Gordo, …
Spouse, age 43
Cerro Gordo, Iowa · implied b. ~1887 — 13 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | May |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | Iowa |
| Age at First Marriage | 20 |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Cerro-Gordo-County, Iowa
Spouse, age 53
Cerro-Gordo-County, Iowa · implied b. ~1887 — 3 household members
| Surname | Johnson |
| Given Name | May |
| Relationship to Head | wife |
| Sex | F |
| Color / Race | White |
| Age | 53 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Bath twp |
| 1935 Residence (County) | Cerro Gordo |
| Industry | H |
| Class of Worker | 0 |
| Highest Grade | H 4 |
| 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 May Johnson across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
May Johnson
Spouse · 1940 · age 53 · b. ~1887 · Iowa
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Cerro-Gordo-County, Iowa
Open full size
1940 US Federal Census — Cerro-Gordo-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01146-00011)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Grace O Holmes | 50 | wife | — | Iowa |
| 2 | Marian Holmes | 20 | daughter | — | Iowa |
| 3 | Robert Holmes | 12 | son | — | Iowa |
| 4 | Francis Holmes | 9 | son | — | Iowa |
| 5 | John Faktor | 57 | head | Farmer | Iowa |
| 6 | Emma E Faktor | 54 | wife | — | Iowa |
| 7 | Betty Faktor | 16 | daughter | — | Iowa |
| 8 | Bonnie Faktor | 15 | daughter | — | Iowa |
| 9 | William Curtis | 56 | hired hand | Farm Laborer | Iowa |
| 10 | Clarence Brown | 36 | head | Farmer | Iowa |
| 11 | Averil O Brown | 35 | wife | — | Iowa |
| 12 | Charles D Fuller | 79 | father-in-law | — | Illinois |
| 13 | Jessie Johnson | 57 | head | Farmer | Iowa |
| 14 | May Johnson THIS PERSON | 53 | wife | — | Iowa |
| 15 | Leroy Johnson | 36 | son | Farmer | Iowa |
| 16 | Frank Smith | 32 | head | Farmer | Iowa |
| 17 | Ruth O Smith | 27 | wife | — | Iowa |
| 18 | Marlene Smith | 4 | daughter | — | Iowa |
| 19 | Charles L Blum | 53 | head | Farmer | Iowa |
| 20 | Mabel Blum | 49 | wife | — | Iowa |
| 21 | Emma O Blum | 23 | daughter | — | Iowa |
| 22 | Dean Blum | 21 | son | Farm Helper | Iowa |
| 23 | Charles Blum | 19 | son | Farm Helper | Iowa |
| 24 | June Blum | 11 | daughter | — | Iowa |
| 25 | Raymond Miller | 18 | hired hand | Farm Laborer | Iowa |
| 26 | Milton H Vagean | 41 | head | Farmer | Germany |
| 27 | Mary Louise O Vagean | 38 | wife | — | Iowa |
| 28 | Betty M Vagean | 14 | daughter | — | Iowa |
| 29 | Kenneth Paulson | 20 | hired hand | Farm Laborer | Iowa |
| 30 | Harry B Vienkant | 52 | head | Farmer | Germany |
| 31 | Hazel Vienkant | 47 | wife | — | Iowa |
| 32 | Ruth Vienkant | 21 | daughter | Housework | Iowa |
| 33 | Harry Vienkant | 18 | son | Farm Helper | Wisconsin |
| 34 | Helen Vienkant | 15 | daughter | — | Wisconsin |
| 35 | Hazel Vienkant | 13 | daughter | — | Iowa |
| 36 | Elmer Vienkant | 11 | son | — | Iowa |
| 37 | Jay L Vienkant | 7 | son | — | Iowa |
| 38 | David Gordon Vienkant | 25 | son | Farm Partner | Iowa |
| 39 | Nora Delphine Vienkant | 27 | son's wife | — | Iowa |
| 40 | Maxine Ruth Vienkant | 1 | granddaughter | — | Iowa |
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)