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William Lyon — 1940 US Census Record
Model Tree available1940 United States Federal Census · Duval-County, Florida
Our Model Tree links this William Lyon across the 1920, 1930 and 1940 US Censuses in Duval-County, Florida (XGBoost, ~Confirmed), with identified parents William & Elizabeth — first a son (b.~1903), then head of a 3-person household.
Age 37
b. ~1903
Male
Son
Born: Mississippi
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Duval-County, Florida |
| Surname | Lyon |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 37 |
| Marital Status | Single |
| Birthplace | Mississippi |
| 1935 Residence (City) | Jacksonville |
| 1935 Residence (County) | Duval |
| Additional Details | |
| Occupation | Electrical |
| Industry | W.P.A. Department of Health |
| Class of Worker | GW |
| Hours Worked | 36 |
| Income (1939) | 210 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Mississippi |
| Birth Country | United States |
| Birthplace (normalized) | mississippi |
| Occupation | Electrical |
| Township / Ward | Jacksonville |
| Est. Birth Year | ~1903 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Ida Quince | Other | — | 76 | ~1864 |
| Elizabeth Lyon | Head | — | 61 | ~1879 |
| William Lyon | Son | — | 37 | ~1903 |
Census Appearances
1920
Duval, Florida
Son, age 16
Duval, Florida · implied b. ~1904 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lyon |
| Given Name | Willie |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Mississippi |
| Father's Birthplace | New Jersey |
| Mother's Birthplace | Florida |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Mississippi |
| Birth Country | United States |
| Birthplace (normalized) | mississippi |
1930
Duval, Florida
Son, age 27
Duval, Florida · implied b. ~1903 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lyon |
| Given Name | William W. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Mississippi |
| Father's Birthplace | New Jersey |
| Mother's Birthplace | Florida |
| Occupation | Clerk |
| Industry | Hotel |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Mississippi |
| Birth Country | United States |
| Birthplace (normalized) | mississippi |
1940
Duval-County, Florida
Son, age 37
Duval-County, Florida · implied b. ~1903 — 3 household members
| Surname | Lyon |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 37 |
| Marital Status | Single |
| Birthplace | Mississippi |
| 1935 Residence (City) | Jacksonville |
| 1935 Residence (County) | Duval |
| Occupation | Electrical |
| Industry | W.P.A. Department of Health |
| Class of Worker | GW |
| Hours Worked | 36 |
| Income (1939) | 210 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Mississippi |
| Birth Country | United States |
| Birthplace (normalized) | mississippi |
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 Lyon across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father William Lyon (~0.92 confidence) and mother Elizabeth Lyon (~0.92 confidence) and mother Elizabeth Lyon (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
William Lyon
b. ~1871
Source father
● Household
· direct · ~0.92
Mother
Elizabeth Lyon
b. ~1877
Source mother
● Household
· direct · ~0.92
Mother
Elizabeth Lyon
b. ~1879
Source mother
● Household
· direct · ~0.92
This person
Anchor record
William Lyon
Son · 1940 · age 37 · b. ~1903 · Florida
★ 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 — Duval-County, Florida
Open full size
1940 US Federal Census — Duval-County, Florida
Page Contents
38 people indexed on this census page (nara:1940:m-t0627-00627-00835)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Mary Friedman | 57 | Wife | — | Lawrence |
| 2 | Helene Friedman | 23 | Daughter | — | Florida |
| 3 | Raymond Friedman | 25 | Nephew | Musician | Florida |
| 4 | Walter Huggins | 56 | Head | Carpenter | South Carolina |
| 5 | Rossie Huggins | 43 | Wife | — | Florida |
| 6 | Minnie Huggins | 26 | Daughter | — | Florida |
| 7 | Billy Huggins | 10 | Son | — | Florida |
| 8 | William Ryals | 30 | Sister-in-law | — | Florida |
| 9 | William Gordon | 36 | Head | Laborer | Georgia |
| 10 | Gladys Gordon | 29 | Wife | — | Florida |
| 11 | William Gordon | 8 | Son | — | Florida |
| 12 | William Hicks | 40 | Head | Carpenter | Florida |
| 13 | Martial Hicks | 26 | Wife | — | Georgia |
| 14 | Thomas Durham | 43 | Head | Tractor Foreman | Kentucky |
| 15 | Bonnie Durham | 50 | Wife | — | Tennessee |
| 16 | Maggie Durham | 65 | Mother | — | Tennessee |
| 17 | Octave Landry | 50 | Head | Truck Driver | Ohio |
| 18 | Agnes Landry | 38 | Wife | Waitress | Kentucky |
| 19 | Paul Landry | 24 | Son | Cab Driver | West Virginia |
| 20 | Mildred Landry | 13 | Daughter | — | Alabama |
| 21 | Elizabeth Lyon | 61 | Head | — | Florida |
| 22 | William Lyon THIS PERSON | 37 | Son | Electrical | Mississippi |
| 23 | Ida Quince | 76 | Mother | — | Florida |
| 25 | John Pietrasanta | 52 | Head | — | Italy |
| 26 | Samuel Herndon | 51 | Head | Laborer | Florida |
| 27 | Robert Josephson | 54 | Lodger | Carpenter | Finland |
| 28 | Albert Halilis | 67 | Head | — | Georgia |
| 29 | Hattie Halilis | 63 | Wife | — | Georgia |
| 30 | Theodore Murwin | 20 | Step-son | Delivery Boy | South Carolina |
| 31 | Vivian Murwin | 17 | Daughter | — | Florida |
| 33 | John Davies | 45 | Head | Salesman | Pennsylvania |
| 34 | Beulah Davies | 40 | Wife | — | New York |
| 35 | Sanford Jones | 35 | Head | Messenger | Florida |
| 36 | Annie Lee Jones | 38 | Wife | — | Florida |
| 37 | Clyde Jones | 12 | Son | — | Florida |
| 38 | Mary Cook | 17 | Lodger | — | South Carolina |
| 39 | William Richardson | 28 | Head | Salesman | Alabama |
| 40 | Gene Richardson | 23 | Wife | — | California |
Pedigree Summary
William
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)