JJ
James Jackson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Duval-County, Florida
Our Model Tree links this James Jackson across the 1920, 1930 and 1940 US Censuses in Duval-County, Florida (XGBoost, ~Confirmed), with identified parents Edgar & James — first a head (b.~1911), then head of a 5-person household.
Age 29
b. ~1911
Male
Head
Born: Florida
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Duval-County, Florida |
| Surname | Jackson |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | Black |
| Age | 29 |
| Marital Status | Married |
| Birthplace | Florida |
| 1935 Residence (City) | Jax Beach |
| 1935 Residence (County) | Duval |
| Additional Details | |
| Occupation | Attendant |
| Industry | Gas Station |
| Class of Worker | PW |
| Hours Worked | 50 |
| Income (1939) | 370 |
| Highest Grade | No 8 |
| 1935 Residence | Same Place |
| Birth State | Florida |
| Birth Country | United States |
| Birthplace (normalized) | florida |
| Occupation | Attendant |
| Township / Ward | Jax Beach |
| Est. Birth Year | ~1911 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| Gloria Jackson | Daughter | — | 5 | ~1935 |
| James Jackson | Head | — | 29 | ~1911 |
| Ernestine Hayes | Other | — | 23 | ~1917 |
| Amos Aida | Other | — | 16 | ~1924 |
| Mary Jackson | Spouse | — | 19 | ~1921 |
Census Appearances
1920
Duval, Florida
Son, age 8
Duval, Florida · implied b. ~1912 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jackson |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 8 |
| Marital Status | Single |
| Birthplace | Florida |
| Father's Birthplace | Florida |
| Mother's Birthplace | Florida |
| Occupation | Student |
| Industry | School |
| Birth State | Florida |
| Birth Country | United States |
| Birthplace (normalized) | florida |
1930
Duval, Florida
Son, age 20
Duval, Florida · implied b. ~1910 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jackson |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Florida |
| Father's Birthplace | Florida |
| Mother's Birthplace | Florida |
| Occupation | Laborer |
| Industry | Steam Ship |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Florida |
| Birth Country | United States |
| Birthplace (normalized) | florida |
1940
Duval-County, Florida
Head, age 29
Duval-County, Florida · implied b. ~1911 — 5 household members
| Surname | Jackson |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | Black |
| Age | 29 |
| Marital Status | Married |
| Birthplace | Florida |
| 1935 Residence (City) | Jax Beach |
| 1935 Residence (County) | Duval |
| Occupation | Attendant |
| Industry | Gas Station |
| Class of Worker | PW |
| Hours Worked | 50 |
| Income (1939) | 370 |
| Highest Grade | No 8 |
| 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 Jackson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Edgar Jackson (~0.92 confidence) and father James Jackson (~0.92 confidence) and mother Ada Jackson (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Edgar Jackson
b. ~1882
Source father
● Household
· direct · ~0.92
Father
James Jackson
b. ~1853
Source father
● Household
· direct · ~0.92
Mother
Ada Jackson
b. ~1889
Source mother
● Household
· direct · ~0.92
This person
Anchor record
James Jackson
Head · 1940 · age 29 · b. ~1911 · 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-t0627-00584-00631)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Simmons Ben Couty | 18 | Lodger | Caddy | Florida |
| 2 | Stevens George Couty | 20 | Head | Porter | Florida |
| 3 | Benton Charles Couty | 20 | Partner | Delivery Boy | Florida |
| 4 | Georgia M. Glover | 34 | Head | Maid | Georgia |
| 5 | Harper Eddie M. Glover | 24 | Lodger | Porter | Georgia |
| 6 | Mackey Ernest Glover | 25 | Lodger | Laborer | Georgia |
| 7 | Mamie Walden | 61 | Head | — | Georgia |
| 8 | Davis Le Roy Walden | 20 | Lodger | Curb Boy | Florida |
| 9 | Bish Richison | 23 | Head | Porter | Georgia |
| 10 | Lillie B. Richison | 20 | Wife | Maid | Georgia |
| 11 | Stanley White | 33 | Head | Teacher | Florida |
| 12 | Willie B. White | 30 | Wife | Teacher | Florida |
| 13 | Laura J. White | 8 | Daughter | — | Florida |
| 14 | Laura White | 6 | Daughter | — | Florida |
| 15 | Stanley Jr. White | 4 | Son | — | Florida |
| 16 | James Hall | 28 | Head | Cook | Georgia |
| 17 | Lucile Hall | 23 | Wife | Maid | Georgia |
| 18 | Isiah Murray | 27 | Head | Porter | Florida |
| 19 | Lennard Murray | 21 | Wife | — | Florida |
| 20 | John L. Williams | 86 | Head | — | Florida |
| 21 | Annie Bowles | 65 | Head | Laundress | Florida |
| 22 | Willie M. Walker | 19 | Granddaughter | Maid | Florida |
| 23 | Willie Brown | 24 | Boarder | Laborer | Florida |
| 24 | James Jackson THIS PERSON | 29 | Head | Attendant | Florida |
| 25 | Mary A. Jackson | 19 | Wife | Maid | South Carolina |
| 26 | Gloria Jackson | 5 | Daughter | — | South Carolina |
| 27 | Ernestine Hayes | 23 | Cousin | Maid | Florida |
| 28 | Amos Aida | 16 | Lodger | Barber | Florida |
| 29 | Mary Swann | 40 | Head | Owner | Georgia |
| 30 | Abraham Columbus | 23 | Head | Shoe Cobbler | Florida |
| 31 | Sally Columbus | 24 | Wife | — | Florida |
| 32 | Ambrose Columbus | 17 | Brother | Caddy | Florida |
| 33 | William Vincent | 20 | Lodger | Caddy | Georgia |
| 34 | Lizzie Martin | 46 | Head | Laundress | Florida |
| 35 | Joseph J. Martin | 14 | Son | Laborer | Florida |
| 36 | Roland Watford | 56 | Head | — | Alabama |
| 37 | Sara Watford | 51 | Wife | Maid | Florida |
| 38 | Sylvia Watford | 21 | Daughter | Maid | Florida |
| 39 | Joe Stevens | 41 | Lodger | Laborer | Florida |
| 40 | Fred Barron | 25 | Lodger | Chauffer | Florida |
Pedigree Summary
James
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)