WS
William Sims — 1940 US Census Record
Model Tree available1940 United States Federal Census · Duval-County, Florida
Our Model Tree links this William Sims across the 1920, 1930 and 1940 US Censuses in Duval-County, Florida (XGBoost, ~Confirmed), with identified parents Olivia & Annie — first a son (b.~1909), then head of a 3-person household.
Age 31
b. ~1909
Male
Son
Born: Florida
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Duval-County, Florida |
| Surname | Sims |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 31 |
| Marital Status | Single |
| Birthplace | Florida |
| 1935 Residence (City) | Jacksonville |
| 1935 Residence (County) | Duval |
| Additional Details | |
| Occupation | Laborer |
| Industry | Chemical Co. |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 720 |
| Highest Grade | No 0 |
| 1935 Residence | Same place |
| Birth State | Florida |
| Birth Country | United States |
| Birthplace (normalized) | florida |
| Occupation | Laborer |
| Township / Ward | Jacksonville |
| Est. Birth Year | ~1909 |
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 |
|---|---|---|---|---|
| Inez Sims | Daughter | — | 15 | ~1925 |
| William Sims | Son | — | 31 | ~1909 |
| Olivia Sims | Spouse | — | 55 | ~1885 |
Census Appearances
1920
Duval, Florida
Son, age 14
Duval, Florida · implied b. ~1906 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sims |
| Given Name | Willie |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Florida |
| Father's Birthplace | Florida |
| Mother's Birthplace | Florida |
| Occupation | Laundress |
| Industry | at home |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Florida |
| Birth Country | United States |
| Birthplace (normalized) | florida |
1930
Duval, Florida
Son, age 23
Duval, Florida · implied b. ~1907 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sims |
| Given Name | Willie |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 23 |
| Marital Status | Married |
| Birthplace | Florida |
| Age at First Marriage | 21 |
| Father's Birthplace | Florida |
| Mother's Birthplace | Florida |
| Occupation | Porter |
| Industry | Dry Goods Store |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Florida |
| Birth Country | United States |
| Birthplace (normalized) | florida |
1940
Duval-County, Florida
Son, age 31
Duval-County, Florida · implied b. ~1909 — 3 household members
| Surname | Sims |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 31 |
| Marital Status | Single |
| Birthplace | Florida |
| 1935 Residence (City) | Jacksonville |
| 1935 Residence (County) | Duval |
| Occupation | Laborer |
| Industry | Chemical Co. |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 720 |
| Highest Grade | No 0 |
| 1935 Residence | Same place |
| Birth State | Florida |
| Birth Country | United States |
| Birthplace (normalized) | florida |
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 Sims across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Olivia Sims (~0.92 confidence) and mother Annie Sims (~0.92 confidence) and mother Beatrice Sims (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Olivia Sims
b. ~1885
Source mother
● Household
· direct · ~0.92
Mother
Annie Sims
b. ~1889
Source mother
● Household
· direct · ~0.92
Mother
Beatrice Sims
b. ~1889
Source mother
● Household
· direct · ~0.92
This person
Anchor record
William Sims
Son · 1940 · age 31 · b. ~1909 · Florida
★ You are viewing this record
Sibling
Inez Sims
Sibling · 1940 · age 15
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 — Duval-County, Florida
Open full size
1940 US Federal Census — Duval-County, Florida
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00627-00180)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Olivia Sims | 55 | Wife | Laundress | S. Carolina |
| 2 | William Sims THIS PERSON | 31 | Son | Laborer | Florida |
| 3 | Inez Sims | 15 | Daughter | — | Florida |
| 4 | Arshell Parker | 45 | Head | Carpenter | Georgia |
| 5 | Reba Parker | 40 | Wife | — | Georgia |
| 6 | Arnold Parker | 17 | Son | Truck Driver | Georgia |
| 7 | Gladys Parker | 15 | Daughter | — | Florida |
| 8 | Frances Parker | 14 | Daughter | — | Florida |
| 9 | Charles Parker | 12 | Son | — | Florida |
| 10 | Edward Parker | 9 | Son | — | Florida |
| 11 | Demarris Parker | 3 | Daughter | — | Florida |
| 12 | Marie Parker | 0 | Daughter | — | Florida |
| 13 | — | 140 | — | — | — |
| 14 | Benjamin Harrington | 39 | Head | Caddy Master | Florida |
| 15 | Sallie Harrington | 32 | Wife | — | Florida |
| 16 | Jessie Harrington | 15 | Daughter | — | Florida |
| 17 | Benjamin Harrington | 14 | Son | — | Florida |
| 18 | Nick Harrington | 6 | Son | — | Florida |
| 19 | Henry Clark | 35 | Head | Fireman | Georgia |
| 20 | Nellie Clark | 29 | Wife | — | Georgia |
| 21 | Doris Clark | 8 | Daughter | — | Georgia |
| 22 | Joan Clark | 6 | Daughter | — | Florida |
| 23 | Charles Pruitt | 41 | Head | Painter | Texas |
| 24 | Verdie Pruitt | 40 | Wife | — | Georgia |
| 25 | Ruby Pruitt | 17 | Daughter | — | Florida |
| 26 | Frances Pruitt | 14 | Daughter | — | Florida |
| 27 | Charles Pruitt | 10 | Son | — | Florida |
| 28 | Herman Birdsong | 24 | Head | Clerk | Georgia |
| 29 | Esther Birdsong | 21 | Wife | — | Georgia |
| 30 | William Wright | 22 | Head | Bench Changer | Georgia |
| 31 | Rosina Wright | 23 | Wife | Cigar Maker | Georgia |
| 32 | Gerald Wright | 3 | Son | — | Florida |
| 33 | Charles Wright | 1 | Son | — | Florida |
| 34 | James Hicks | 25 | Head | Plumber | Florida |
| 35 | Zada Hicks | 20 | Wife | — | Florida |
| 36 | Gloria Hicks | 3 | Daughter | — | Florida |
| 37 | Diane Hicks | 2 | Daughter | — | Florida |
| 38 | — | 141 | — | — | — |
| 39 | Lester Flynn | 41 | Head | Electrician | Florida |
| 40 | Hazel Flynn | 36 | Wife | — | New York |
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)