WB
William Byrd — 1940 US Census Record
Model Tree available1940 United States Federal Census · Madison-County, Illinois
Our Model Tree links this William Byrd across the 1920, 1930 and 1940 US Censuses in Madison-County, Illinois (XGBoost, ~Confirmed), with identified parents Frank & Rosa — first a son (b.~1904), then head of a 4-person household.
Age 36
b. ~1904
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Madison-County, Illinois |
| Surname | Byrd |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 36 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Collinsville city |
| 1935 Residence (County) | Madison |
| Additional Details | |
| Occupation | Plant operator |
| Industry | Gas Mfg. |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 900 |
| Highest Grade | No 8 |
| 1935 Residence | Same house |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Plant Operator |
| Township / Ward | Collinsville City |
| Est. Birth Year | ~1904 |
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 |
|---|---|---|---|---|
| Frank Finnicutt | Head | — | 71 | ~1869 |
| William Byrd | Son | — | 36 | ~1904 |
| Ethel Byrd | Daughter | — | 41 | ~1899 |
| Rosa Finnicutt | Spouse | — | 62 | ~1878 |
Census Appearances
1920
Madison, Illinois
Other, age 17
Madison, Illinois · implied b. ~1903 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Byrd |
| Given Name | William |
| Relationship to Head | Step-son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Madison, Illinois
Other, age 25
Madison, Illinois · implied b. ~1905 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Byrd |
| Given Name | William |
| Relationship to Head | Step son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | Chauffeur |
| Industry | Undertaker |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Madison-County, Illinois
Son, age 36
Madison-County, Illinois · implied b. ~1904 — 4 household members
| Surname | Byrd |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 36 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Collinsville city |
| 1935 Residence (County) | Madison |
| Occupation | Plant operator |
| Industry | Gas Mfg. |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 900 |
| Highest Grade | No 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 William Byrd across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Frank Finnicutt (~0.92 confidence) and mother Rosa Finnicutt (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Frank Finnicutt
b. ~1869
Source father
● Household
· direct · ~0.92
Mother
Rosa Finnicutt
b. ~1878
Source mother
● Household
· direct · ~0.92
This person
Anchor record
William Byrd
Son · 1940 · age 36 · b. ~1904 · Illinois
★ You are viewing this record
Sibling
Ethel Byrd
Sibling · 1940 · age 41
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 — Madison-County, Illinois
Open full size
1940 US Federal Census — Madison-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00849-00193)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Fred Best | 77 | Head | — | Illinois |
| 2 | George Mason | 24 | Son-in-law | Laborer | Illinois |
| 3 | Georgia Mason | 29 | Daughter | — | Illinois |
| 4 | George Pritchett | 55 | Head | Miner | Germany |
| 5 | Lena Pritchett | 42 | Wife | — | Maine |
| 6 | George Jr Pritchett | 11 | Son | — | Illinois |
| 7 | Charles Pritchett | 42 | Head | Truck Driver | Illinois |
| 8 | Catherine Pritchett | 32 | Wife | — | Illinois |
| 9 | Jane Pritchett | 2 | Daughter | — | Illinois |
| 10 | George Schlorat | 48 | Head | Miner | Lithuania |
| 11 | Anna Schlorat | 51 | Wife | — | Lithuania |
| 12 | George Jr Schlorat | 21 | Son | New Worker | Illinois |
| 13 | Olga Schlorat | 16 | Daughter | — | Illinois |
| 14 | Melvin Bonham | 38 | Head | Watchman | Illinois |
| 15 | Laura Bonham | 38 | Wife | — | Illinois |
| 16 | Doris Bonham | 10 | Daughter | — | Illinois |
| 17 | John Boziewski | 49 | Head | Miner | Poland |
| 18 | Anna Boziewski | 41 | Wife | — | Pennsylvania |
| 19 | John Jr Boziewski | 23 | Son | Stenographer | Illinois |
| 20 | Helen Boziewski | 22 | Daughter | Saleslady | Illinois |
| 21 | Frank Finnicutt | 71 | Head | — | Illinois |
| 22 | Rosa Finnicutt | 62 | Wife | — | Illinois |
| 23 | Ethel Byrd | 41 | Daughter | File Clerk | Illinois |
| 24 | William Byrd THIS PERSON | 36 | Son | Plant Operator | Illinois |
| 25 | Jerome Ward | 35 | Head | Clerk | Illinois |
| 26 | Amelia Ward | 34 | Wife | — | Illinois |
| 27 | Alfred Ward | 12 | Son | — | Illinois |
| 28 | Jerry Ward | 4 | Son | — | Illinois |
| 29 | Alfred Bailey | 60 | Father-in-law | Miner | Illinois |
| 30 | Elizabeth Bailey | 56 | Mother-in-law | — | England |
| 31 | Victoria Bellini | 54 | Head | — | Germany |
| 32 | Clara Bellini | 44 | Daughter | Saleslady | Illinois |
| 33 | Thomas Horisans | 26 | Head | Laborer | Illinois |
| 34 | Margaret Horisans | 25 | Wife | — | Scotland |
| 35 | James Wrigley | 35 | Head | Truck Driver | Scotland |
| 36 | Helen Wrigley | 39 | Wife | — | Illinois |
| 37 | James Jr Wrigley | 13 | Son | — | Illinois |
| 38 | George Bernardi | 47 | Head | Miner | Lithuania |
| 39 | Agnes Bernardi | 31 | Wife | — | Illinois |
| 40 | Marjorie Bernardi | 11 | Daughter | — | Illinois |
Pedigree Summary
William + 1 sibling
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)