WG
William Gillespie — 1940 US Census Record
Model Tree available1940 United States Federal Census · Macon-County, Illinois
Our Model Tree links this William Gillespie across the 1920, 1930 and 1940 US Censuses in Macon-County, Illinois (XGBoost, ~Confirmed), with identified parents William & William — first a son (b.~1918), then head of a 4-person household.
Age 22
b. ~1918
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Macon-County, Illinois |
| Surname | Gillespie |
| Given Name | William C Jr |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Decatur |
| 1935 Residence (County) | Macon |
| Additional Details | |
| Occupation | helper |
| Industry | railroad shop |
| Class of Worker | PW |
| Hours Worked | 42 |
| Income (1939) | 471 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Helper |
| Township / Ward | Decatur |
| 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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Joseph Gillespie | Son | — | 20 | ~1920 |
| William Gillespie | Son | — | 22 | ~1918 |
| Geraldine Gillespie | Spouse | — | 45 | ~1895 |
| William Gillespie | Head | — | 54 | ~1886 |
Census Appearances
1920
Macon, Illinois
Son, age 1
Macon, Illinois · implied b. ~1919 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Gillespie |
| Given Name | William Jr. |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Macon, Illinois
Son, age 12
Macon, Illinois · implied b. ~1918 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Gillespie |
| Given Name | William Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Macon-County, Illinois
Son, age 22
Macon-County, Illinois · implied b. ~1918 — 4 household members
| Surname | Gillespie |
| Given Name | William C Jr |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Decatur |
| 1935 Residence (County) | Macon |
| Occupation | helper |
| Industry | railroad shop |
| Class of Worker | PW |
| Hours Worked | 42 |
| Income (1939) | 471 |
| 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 William Gillespie across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father William Gillespie (~0.92 confidence) and father William Gillespie (~0.92 confidence) and mother Geraldine Gillespie (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
William Gillespie
b. ~1885
Source father
● Household
· direct · ~0.92
Father
William Gillespie
b. ~1886
Source father
● Household
· direct · ~0.92
Mother
Geraldine Gillespie
b. ~1896
Source mother
● Household
· direct · ~0.92
This person
Anchor record
William Gillespie
Son · 1940 · age 22 · b. ~1918 · Illinois
★ You are viewing this record
Sibling
Joseph Gillespie
Sibling · 1940 · age 20
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 — 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-t0627-00845-00217)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Emma D Hilliam | 41 | Wife | — | Germany |
| 42 | Elsie Hilliam | 16 | Daughter | — | Illinois |
| 43 | Arthur Hilliam | 14 | Son | — | Illinois |
| 44 | Gertrude Hilliam | 13 | Daughter | — | Illinois |
| 45 | Anna Hilliam | 11 | Daughter | — | Illinois |
| 46 | Edna Hilliam | 10 | Daughter | — | Illinois |
| 47 | Alfred Hilliam | 9 | Son | — | Illinois |
| 48 | James E Kane | 60 | Head | Chiropractor | Illinois |
| 49 | Pearl V Kane | 56 | Wife | — | Illinois |
| 50 | George Kane | 27 | Son | Vulcanizer | Illinois |
| 51 | Milton Garver | 64 | Head | — | Illinois |
| 52 | Alice V Gillespie | 49 | Servant | House Keeper | Illinois |
| 53 | E Bruce | 16 | Lodger | — | Illinois |
| 54 | George E Heller | 27 | Head | Office Clerk | Illinois |
| 55 | Betty R Heller | 24 | Wife | — | Illinois |
| 56 | William C Gillespie | 54 | Head | Machinist | Illinois |
| 57 | Geraldine D Gillespie | 45 | Wife | — | Illinois |
| 58 | William C Jr Gillespie THIS PERSON | 22 | Son | Helper | Illinois |
| 59 | Joseph C Gillespie | 20 | Son | Brakeman | Illinois |
| 60 | Edward L Garver | 27 | Head | Feed Business | Illinois |
| 61 | Elsie G Garver | 24 | Wife | — | Illinois |
| 62 | Judith G Garver | 1 | Daughter | — | Illinois |
| 63 | Walter E Ilay | 64 | Head | Janitor | Illinois |
| 64 | Bertha M Ilay | 62 | Wife | — | Illinois |
| 65 | William H Ilay | 20 | Son | Newsworker | Illinois |
| 66 | Edward T Mcneil | 67 | Head | — | Arkansas |
| 67 | Lillian Mcneil | 58 | Wife | — | Iowa |
| 68 | William O Gring | 79 | Head | — | Illinois |
| 69 | Ada Gring | 67 | Wife | — | Illinois |
| 70 | Harvey Albright | 63 | Head | — | Ohio |
| 71 | Arpha Albright | 61 | Wife | Baker | Illinois |
| 72 | Charles L Carrier | 71 | Head | Director | Illinois |
| 73 | Metta S Carrier | 67 | Wife | — | Illinois |
| 74 | Everett R Parkison | 30 | Head | Operating Engineer | Illinois |
| 75 | Evelyn Parkison | 30 | Wife | — | Illinois |
| 76 | Rodney G Parkison | 11 | Son | — | Illinois |
| 77 | Roselin J Parkison | 5 | Daughter | — | Illinois |
| 78 | John H Peck | 41 | Head | Clerk | Ohio |
| 79 | Verna E Peck | 44 | Wife | — | Colorado |
| 80 | Hugh S Peck | 17 | Son | Clerk | Illinois |
Pedigree Summary
William + 1 sibling
Gen 1 · 3 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)