JB
John Boyer — 1940 US Census Record
Model Tree available1940 United States Federal Census · Macon-County, Illinois
Our Model Tree links this John Boyer across the 1920, 1930 and 1940 US Censuses in Macon-County, Illinois (XGBoost, ~Confirmed), with identified parents Fred & Lillian — first a head (b.~1914), then head of a 4-person household.
Age 26
b. ~1914
Male
Head
Born: Illinois
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Macon-County, Illinois |
| Surname | Boyer |
| Given Name | John E. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Decatur City |
| 1935 Residence (County) | Macon |
| Additional Details | |
| Occupation | Tool maker |
| Industry | Tool factory |
| Class of Worker | PW |
| Hours Worked | 42 |
| Income (1939) | 1250 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Tool Maker |
| Township / Ward | Decatur City |
| Est. Birth Year | ~1914 |
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 |
|---|---|---|---|---|
| Robert Boyer | Son | — | 2 | ~1938 |
| Helen Boyer | Spouse | — | 25 | ~1915 |
| John Boyer | Head | — | 26 | ~1914 |
| John Boyer | Son | — | 6 | ~1934 |
Census Appearances
1920
Macon, Illinois
Son, age 5
Macon, Illinois · implied b. ~1915 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Boyer |
| Given Name | John C |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Illinois |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Macon, Illinois
Son, age 16
Macon, Illinois · implied b. ~1914 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Boyer |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Illinois |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Macon-County, Illinois
Head, age 26
Macon-County, Illinois · implied b. ~1914 — 4 household members
| Surname | Boyer |
| Given Name | John E. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Decatur City |
| 1935 Residence (County) | Macon |
| Occupation | Tool maker |
| Industry | Tool factory |
| Class of Worker | PW |
| Hours Worked | 42 |
| Income (1939) | 1250 |
| Highest Grade | Hs 4 |
| 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 John Boyer across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Fred Boyer (~0.92 confidence) and mother Lillian Boyer (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Fred Boyer
b. ~1875
Source father
● Household
· direct · ~0.92
Mother
Lillian Boyer
b. ~1889
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Boyer
Head · 1940 · age 26 · b. ~1914 · 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 — Macon-County, Illinois
Open full size
1940 US Federal Census — Macon-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00843-00368)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | J. Clark | 9 | Son | — | Illinois |
| 42 | Darrell Clark | 6 | Son | — | Illinois |
| 43 | Oral Banton | 30 | Head | Laborer | Illinois |
| 44 | Martha Banton | 29 | Wife | — | Illinois |
| 45 | Edmund Banton | 6 | Son | — | Illinois |
| 46 | Charlene Banton | 4 | Daughter | — | Illinois |
| 47 | Donald Banton | 2 | Son | — | Illinois |
| 48 | John E. Boyer THIS PERSON | 26 | Head | Tool Maker | Illinois |
| 49 | Helen Boyer | 25 | Wife | — | Illinois |
| 50 | John Jr. Boyer | 6 | Son | — | Illinois |
| 51 | Robert Boyer | 2 | Son | — | Illinois |
| 52 | Clayton Groves | 31 | Head | Termite Exptr. | Illinois |
| 53 | Eval Groves | 26 | Wife | — | Arkansas |
| 54 | Gary Clayton Groves | 2 | Son | — | Illinois |
| 55 | Eusebia J. Cook | 68 | Head | Laborer | Illinois |
| 56 | Emma Cook | 61 | Wife | — | Illinois |
| 57 | Violet Cook | 24 | Daughter | Lock Assembler | Oklahoma |
| 58 | Robert J. Hindley | 52 | Head | Proprietor Of Retail Groc. | Illinois |
| 59 | Eve Hindley | 40 | Wife | — | Ohio |
| 60 | Otto Craig | 49 | Head | Fireman R.R. | Indiana |
| 61 | Goldie Craig | 48 | Wife | — | Illinois |
| 62 | Phillippa Craig | 22 | Daughter | Saleslady | Illinois |
| 63 | David Craig | 20 | Son | Taxi-Driver | Illinois |
| 64 | Kathryn Craig | 15 | Daughter | — | Illinois |
| 65 | Bonnie Craig | 12 | Daughter | — | Illinois |
| 66 | Charles Craig | 7 | Son | — | Illinois |
| 67 | Marjorie Craig | 5 | Daughter | — | Illinois |
| 68 | Lester Mullen | 27 | Head | Salesman | Illinois |
| 69 | Dorothy Mullen | 26 | Wife | — | Illinois |
| 70 | Shirley Ann Mullen | 5 | Daughter | — | Illinois |
| 71 | Jacqueline Mullen | 3 | Daughter | — | Illinois |
| 72 | Donna Lee Mullen | 1 | Daughter | — | Illinois |
| 73 | Karen Mullen | 0 | Daughter | — | Illinois |
| 74 | Veronica Entenmen | 67 | Head | — | Illinois |
| 75 | Frances Entenmen | 40 | Neice | Book Keeper | Missouri |
| 76 | Clarence P. Wayne | 45 | Head | Painter | Illinois |
| 77 | Sybella Wayne | 52 | Wife | — | Wisconsin |
| 78 | Lester Gerford | 21 | Step Son | Display Work | Wisconsin |
| 79 | Elizabeth Daly | 68 | Head | — | Illinois |
| 80 | Catherine Daly | 65 | Sister | — | Illinois |
Pedigree Summary
John
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)