JM
John May — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Brown-County, Illinois
Our Model Tree links this John May across the 1910, 1920, 1930 and 1940 US Censuses in Brown-County, Illinois (XGBoost, ~Confirmed) — first a head (b.~1875), then head of a 4-person household.
Age 65
b. ~1875
Male
Head
Born: Illinois
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Brown-County, Illinois |
| Surname | May |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 65 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Pea Ridge |
| 1935 Residence (County) | Brown |
| Additional Details | |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 45 |
| Income (1939) | 0 |
| Highest Grade | 8 |
| 1935 Residence | Same house |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Farmer |
| Township / Ward | Pea Ridge |
| Est. Birth Year | ~1875 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| John May | Head | — | 65 | ~1875 |
| Clarence Lamme | Other | — | 34 | ~1906 |
| Russell May | Son | — | 27 | ~1913 |
| Nellie May | Spouse | — | 56 | ~1884 |
Census Appearances
1910
Brown, Illinois
Head, age 35
Brown, Illinois · implied b. ~1875 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | May |
| Given Name | John H |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Illinois |
| Years Married | 4 |
| Father's Birthplace | North Carolina |
| Mother's Birthplace | Illinois |
| Occupation | Farmer |
| Industry | General farm |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1920
Brown, Illinois
Head, age 45
Brown, Illinois · implied b. ~1875 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | May |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | Illinois |
| Father's Birthplace | North Carolina |
| Mother's Birthplace | Illinois |
| Occupation | Farmer |
| Industry | General Farm |
| Class of Worker | OA |
| Can Read | Yes |
| Can Write | Yes |
| Home Owned/Rented | R |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Brown, Illinois
Other, age 55
Brown, Illinois · implied b. ~1875 — 34 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | May |
| Given Name | John |
| Relationship to Head | O |
| Sex | M |
| Color / Race | White |
| Age | 55 |
| Marital Status | Married |
| Birthplace | Illinois |
| Age at First Marriage | 30 |
| Father's Birthplace | S. Carolina |
| Mother's Birthplace | Illinois |
| Occupation | Farmer |
| Industry | General farm |
| Class of Worker | W |
| Can Read/Write | Yes |
| Radio Set | R |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Brown-County, Illinois
Head, age 65
Brown-County, Illinois · implied b. ~1875 — 4 household members
| Surname | May |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 65 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Pea Ridge |
| 1935 Residence (County) | Brown |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 45 |
| Income (1939) | 0 |
| Highest Grade | 8 |
| 1935 Residence | Same house |
| 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 John May across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John May
Head · 1940 · age 65 · b. ~1875 · Illinois
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Brown-County, Illinois
Open full size
1940 US Federal Census — Brown-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00761-00183)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Elizabeth Mccaskill | 71 | Aunt | — | Illinois |
| 42 | Gerald Dewitt | 24 | Head | Farm Laborer | Illinois |
| 43 | Violet Dewitt | 20 | Wife | — | Illinois |
| 44 | Russell Dewitt | 47 | Head | Farm Laborer | Illinois |
| 45 | Isabel Dewitt | 48 | Wife | — | Illinois |
| 46 | Charles Dewitt | 12 | Son | — | Illinois |
| 47 | Hattie Tompkins | 55 | Head | Farm Manager | Illinois |
| 48 | James Tompkins | 61 | Brother | Farm Laborer | Illinois |
| 49 | Jennie Tompkins | 58 | Sister | — | Illinois |
| 50 | Mayme Miller | 51 | Sister | — | Illinois |
| 51 | Margaret Miller | 13 | Niece | — | Illinois |
| 52 | Roy Brown | 56 | Head | Farmer | Illinois |
| 53 | Dora Brown | 55 | Wife | — | Illinois |
| 54 | Gene Easley | 59 | — | Farm Laborer | Illinois |
| 55 | Thomas Redmond | 75 | Head | Farmer | Illinois |
| 56 | Catherine Redmond | 68 | Wife | — | Illinois |
| 57 | Patrick Redmond | 38 | Head | Farmer | Illinois |
| 58 | Albert Crooks | 73 | Head | Farmer | Illinois |
| 59 | Rachael Crooks | 75 | Wife | — | Ohio |
| 60 | George Hendrick | 76 | Head | Farmer | Ohio |
| 61 | John Forsythe | 48 | Head | Farmer | Illinois |
| 62 | Ruth Forsythe | 46 | Wife | — | Illinois |
| 63 | Alvin Forsythe | 19 | Son | Farm Laborer | Illinois |
| 64 | Virginia Forsythe | 18 | Daughter | — | Illinois |
| 65 | Marie Forsythe | 16 | Daughter | — | Illinois |
| 66 | William Forsythe | 13 | Son | — | Illinois |
| 67 | Edward Forsythe | 9 | Son | — | Illinois |
| 68 | Carol Forsythe | 3 | Daughter | — | Illinois |
| 69 | Trent Hippen | 57 | Head | — | Illinois |
| 70 | Harriett Hippen | 25 | Daughter | — | Illinois |
| 71 | Step. P. Hippen | 50 | Head | Farmer | Illinois |
| 72 | Thelma Hippen | 45 | Wife | — | Illinois |
| 73 | Arnold Hippen | 15 | Son | Farm Laborer | Illinois |
| 74 | John May THIS PERSON | 65 | Head | Farmer | Illinois |
| 75 | Nellie May | 56 | Wife | Farm Laborer | Illinois |
| 76 | Russell May | 27 | Son | Farm Laborer | Illinois |
| 77 | Clarence Lamme | 34 | Family | Farm Laborer | Illinois |
| 78 | Frank Allen | 57 | Head | Laborer | Wisconsin |
| 79 | Catherine Allen | 47 | Wife | — | Iowa |
| 80 | Clarence Welty | 30 | Head | Laborer | 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)