CM
Charles May — 1940 US Census Record
Model Tree available1940 United States Federal Census · Mchenry-County, Illinois
Our Model Tree links this Charles May across the 1910, 1920, 1930 and 1940 US Censuses in Mchenry-County, Illinois (XGBoost, ~Confirmed), with identified parents Anton & Emma — first a head (b.~1901), then head of a 5-person household.
Age 39
b. ~1901
Male
Head
Born: Illinois
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Mchenry-County, Illinois |
| Surname | May |
| Given Name | Charles N. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Burton Township |
| 1935 Residence (County) | McHenry |
| Additional Details | |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 48 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Farmer |
| Township / Ward | Burton Township |
| Est. Birth Year | ~1901 |
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 Charles | Age | Birth yr |
|---|---|---|---|---|
| James May | Son | — | 10 | ~1930 |
| Charles May | Son | — | 15 | ~1925 |
| Julia May | Spouse | — | 35 | ~1905 |
| Charles May | Head | — | 39 | ~1901 |
| Robert May | Son | — | 6 | ~1934 |
Census Appearances
1910
Mchenry, Illinois
Son, age 9
Mchenry, Illinois · implied b. ~1901 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | May |
| Given Name | Charlie |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1920
Mchenry, Illinois
Son, age 19
Mchenry, Illinois · implied b. ~1901 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | May |
| Given Name | Charles |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | Laborer |
| Industry | Creamery |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Mchenry, Illinois
Head, age 29
Mchenry, Illinois · implied b. ~1901 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | May |
| Given Name | Charles L. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Married |
| Birthplace | Illinois |
| Age at First Marriage | 21 |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | Farmer |
| Industry | General Farm |
| Class of Worker | OA |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Veteran | No |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Mchenry-County, Illinois
Head, age 39
Mchenry-County, Illinois · implied b. ~1901 — 5 household members
| Surname | May |
| Given Name | Charles N. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Burton Township |
| 1935 Residence (County) | McHenry |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 48 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 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 Charles May across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Anton May (~0.92 confidence) and mother Emma May (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Anton May
b. ~1880
Source father
● Household
· direct · ~0.92
Mother
Emma May
b. ~1881
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Charles May
Head · 1940 · age 39 · b. ~1901 · Illinois
★ 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 — Mchenry-County, Illinois
Open full size
1940 US Federal Census — Mchenry-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00840-00271)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Albert J. Lowe | 26 | Head | Farmer | Illinois |
| 2 | Gertrude Lowe | 26 | Wife | — | Illinois |
| 3 | Gloria Lowe | 4 | Daughter | — | Illinois |
| 4 | Richard Lowe | 13 | Brother | — | Illinois |
| 5 | John Smith | 64 | Father-in-law | — | Wisconsin |
| 6 | Allen Allen | 30 | Hired Hand | Farm Hand | Illinois |
| 7 | William E. Warner | 56 | Head | Farmer | Wisconsin |
| 8 | Bertha R. Warner | 56 | Wife | — | Wisconsin |
| 9 | Melvin K. Warner | 20 | Son | Farm Hand | Illinois |
| 10 | Rodell Warner | 18 | Son | Farm Hand | Illinois |
| 11 | John Grabow | 51 | Cousin | — | Iowa |
| 12 | William Daehler | 54 | Hired Hand | Farm Hand | Wisconsin |
| 13 | Earl E. Swenson | 52 | Head | Farmer | Wisconsin |
| 14 | Ida E. Swenson | 46 | Wife | — | Illinois |
| 15 | Lyle Muehlberg | 22 | Hired Hand | Farm Hand | Wisconsin |
| 16 | Earl H. Harm | 24 | Head | Farmer | Illinois |
| 17 | Hester M. Harm | 24 | Wife | — | Wisconsin |
| 18 | William E. Harm | 4 | Son | — | Illinois |
| 19 | Gertrude Gundelach | 44 | Head | Owner | Illinois |
| 20 | Myrtle L. Gundelach | 24 | Wife | — | Illinois |
| 21 | Everett Gundelach | 19 | Son | — | Wisconsin |
| 22 | Irma Gundelach | 16 | Daughter | — | Wisconsin |
| 23 | Gertrude J. Gundelach | 11 | Son | — | Illinois |
| 24 | Howard Gundelach | 8 | Son | — | Illinois |
| 25 | Allan Gundelach | 7 | Son | — | Illinois |
| 26 | Harry J. Stewart | 30 | Head | Farmer | Illinois |
| 27 | Jean M. Stewart | 25 | Wife | — | Wisconsin |
| 28 | Robert Stewart | 12 | Son | — | Illinois |
| 29 | Preston E. Miller | 61 | Stable | — | Wisconsin |
| 30 | George Thomas | 20 | Hired Hand | Farm Hand | Illinois |
| 31 | Charles N. May THIS PERSON | 39 | Head | Farmer | Illinois |
| 32 | Julia May | 35 | Wife | — | Illinois |
| 33 | Charles N. Jr. May | 15 | Son | — | Illinois |
| 34 | James May | 10 | Son | — | Illinois |
| 35 | Robert May | 6 | Son | — | Illinois |
| 36 | Leon H. Van Every | 57 | Head | Farmer | Michigan |
| 37 | Alice E. Van Every | 55 | Wife | — | Michigan |
| 38 | Allan Van Every | 17 | Son | Attendant | Illinois |
| 39 | Maxwell Van Every | 24 | Head | Farm Hand | Illinois |
| 40 | Irene Ann Van Every | 19 | Wife | Waitress | Kentucky |
Pedigree Summary
Charles
Gen 1 · 2 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)