JD
James Davis — 1940 US Census Record
Model Tree available1940 United States Federal Census · Duval-County, Florida
Our Model Tree links this James Davis across the 1910, 1920, 1930 and 1940 US Censuses in Duval-County, Florida (XGBoost, ~Confirmed), with identified parents David & Ida — first a head (b.~1906), then head of a 8-person household.
Age 34
b. ~1906
Male
Head
Born: Florida
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Duval-County, Florida |
| Surname | Davis |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | Black |
| Age | 34 |
| Marital Status | Married |
| Birthplace | Florida |
| 1935 Residence (City) | Jax Beach |
| 1935 Residence (County) | Duval |
| Additional Details | |
| Occupation | Laborer |
| Industry | City |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 624 |
| Highest Grade | No 4 |
| 1935 Residence | Same Place |
| Birth State | Florida |
| Birth Country | United States |
| Birthplace (normalized) | florida |
| Occupation | Laborer |
| Township / Ward | Jax Beach |
| Est. Birth Year | ~1906 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| Lillian Davis | Daughter | — | 2 | ~1938 |
| James Davis | Head | — | 34 | ~1906 |
| Eddie Cooper | Other | — | 19 | ~1921 |
| Jimmie Davis | Son | — | 11 | ~1929 |
| Earnest Davis | Son | — | 9 | ~1931 |
| Charles Davis | Son | — | 12 | ~1928 |
| Joe Davis | Son | — | 14 | ~1926 |
| Lilly Davis | Spouse | — | 28 | ~1912 |
Census Appearances
1910
Duval, Florida
Other, age 2
Duval, Florida · implied b. ~1908 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davis |
| Given Name | James |
| Relationship to Head | Grand-son |
| Sex | M |
| Color / Race | Black |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Florida |
| Father's Birthplace | North Carolina |
| Mother's Birthplace | Florida |
| Birth State | Florida |
| Birth Country | United States |
| Birthplace (normalized) | florida |
1920
Duval, Florida
Other, age 12
Duval, Florida · implied b. ~1908 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davis |
| Given Name | James |
| Relationship to Head | Grand Son |
| Sex | M |
| Color / Race | Black |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Florida |
| Father's Birthplace | Florida |
| Mother's Birthplace | Florida |
| Occupation | none |
| 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 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davis |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Florida |
| Father's Birthplace | Florida |
| Mother's Birthplace | Florida |
| Occupation | musician |
| Industry | music |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Florida |
| Birth Country | United States |
| Birthplace (normalized) | florida |
1940
Duval-County, Florida
Head, age 34
Duval-County, Florida · implied b. ~1906 — 8 household members
| Surname | Davis |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | Black |
| Age | 34 |
| Marital Status | Married |
| Birthplace | Florida |
| 1935 Residence (City) | Jax Beach |
| 1935 Residence (County) | Duval |
| Occupation | Laborer |
| Industry | City |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 624 |
| Highest Grade | No 4 |
| 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 James Davis across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father David Davis (~0.92 confidence) and mother Ida Davis (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
David Davis
b. ~1875
Source father
● Household
· direct · ~0.92
Mother
Ida Davis
b. ~1872
Source mother
● Household
· direct · ~0.92
This person
Anchor record
James Davis
Head · 1940 · age 34 · b. ~1906 · 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
40 people indexed on this census page (nara:1940:m-t0627-00584-00638)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Lorine Clark | 3 | Daughter | — | Florida |
| 42 | Gloria Clark | 2 | Daughter | — | Florida |
| 43 | Roberta M. Clark | 0 | Daughter | — | Florida |
| 44 | James Davis THIS PERSON | 34 | Head | Laborer | Florida |
| 45 | Lilly Davis | 28 | Wife | — | Florida |
| 46 | Joe Davis | 14 | Son | — | Florida |
| 47 | Charles L. Davis | 12 | Son | — | Florida |
| 48 | Jimmie L. Davis | 11 | Son | — | Florida |
| 49 | Earnest Davis | 9 | Son | — | Florida |
| 50 | Lillian Davis | 2 | Daughter | — | Florida |
| 51 | Eddie Cooper | 19 | Nephew | Helper | Florida |
| 52 | James T. Haven | 28 | Head | Cook | Florida |
| 53 | Willie M. Haven | 20 | Wife | Maid | Georgia |
| 54 | Rosa Lee Mccrae | 5 | Sister-in-law | — | Florida |
| 55 | Osker Williams | 33 | Head | Waiter | Florida |
| 56 | Sally E. Williams | 28 | Wife | Maid | Florida |
| 57 | James Walden | 30 | Head | Laborer | Florida |
| 58 | Beatrice Walden | 24 | Wife | Maid | Florida |
| 59 | Bertha M. Walden | 3 | Daughter | — | Florida |
| 60 | Mary Brown | 68 | Head | — | South Carolina |
| 61 | Robert Williams | 26 | Lodger | Porter | Georgia |
| 62 | George Roberts | 24 | Lodger | Caddy | Florida |
| 63 | Jessie M. Yanis | 30 | Head | Maid | Georgia |
| 64 | Helen Grady | 38 | Lodger | — | Florida |
| 65 | Lebron Jackson | 29 | Head | Truck Driver | Georgia |
| 66 | Mamie Jackson | 33 | Wife | Maid | Georgia |
| 67 | Eddie Johnson | 30 | Lodger | Cook | Florida |
| 68 | Ben Simon | 35 | Lodger | Caretaker | Georgia |
| 69 | Odell Jackson | 39 | Head | Cement Finisher | Florida |
| 70 | Pauline P. Jackson | 29 | Wife | Maid | Georgia |
| 71 | Calvin Johnson | 51 | Head | Laborer | South Carolina |
| 72 | Marie Johnson | 42 | Wife | — | South Carolina |
| 73 | Ida Mae Johnson | 7 | Daughter | — | Florida |
| 74 | James Jr. Johnson | 5 | Son | — | Florida |
| 75 | Nivish Johnson | 4 | Daughter | — | Florida |
| 76 | Sally Williams | 40 | Head | Maid | Florida |
| 77 | James Dingle | 23 | Lodger | Waiter | Florida |
| 78 | Sallie Stafford | 19 | Lodger | Maid | Florida |
| 79 | Council Donald | 24 | Lodger | Porter | Florida |
| 80 | Vilena Willis | 22 | Lodger | Caddy | Florida |
Pedigree Summary
James
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)