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John Sparks — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Jefferson-County, Louisiana
Our Model Tree links this John Sparks across the 1920, 1930 and 1940 US Censuses in Jefferson-County, Louisiana (XGBoost, ~Confirmed) — first a head (b.~1875), then head of a 3-person household.
Age 65
b. ~1875
Male
Head
Born: Louisiana
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Jefferson-County, Louisiana |
| Surname | Sparks |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | Black |
| Age | 65 |
| Marital Status | Married |
| Birthplace | Louisiana |
| 1935 Residence (City) | City of Gretna |
| 1935 Residence (County) | Jefferson |
| Additional Details | |
| Highest Grade | No 4 |
| 1935 Residence | Same place |
| Birth State | Louisiana |
| Birth Country | United States |
| Birthplace (normalized) | louisiana |
| Township / Ward | City Of Gretna |
| Est. Birth Year | ~1875 |
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 John | Age | Birth yr |
|---|---|---|---|---|
| Edward Crosby | Son | — | 6 | ~1934 |
| Ella Sparks | Spouse | — | 59 | ~1881 |
| John Sparks | Head | — | 65 | ~1875 |
Census Appearances
1920
Jefferson, Louisiana
Head, age 44
Jefferson, Louisiana · implied b. ~1876 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sparks |
| Given Name | John |
| Relationship to Head | head |
| Sex | M |
| Color / Race | Black |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Louisiana |
| Father's Birthplace | Louisiana |
| Mother's Birthplace | Louisiana |
| Occupation | watchman |
| Industry | on River |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | O |
| Home Free/Mortgaged | F |
| Birth State | Louisiana |
| Birth Country | United States |
| Birthplace (normalized) | louisiana |
1930
Jefferson, Louisiana
Head, age 54
Jefferson, Louisiana · implied b. ~1876 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sparks |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | Black |
| Age | 54 |
| Marital Status | Married |
| Birthplace | Louisiana |
| Age at First Marriage | 19 |
| Father's Birthplace | Louisiana |
| Mother's Birthplace | Louisiana |
| Occupation | Longshoreman |
| Industry | Docks |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | $1500 |
| Birth State | Louisiana |
| Birth Country | United States |
| Birthplace (normalized) | louisiana |
1940
Jefferson-County, Louisiana
Head, age 65
Jefferson-County, Louisiana · implied b. ~1875 — 3 household members
| Surname | Sparks |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | Black |
| Age | 65 |
| Marital Status | Married |
| Birthplace | Louisiana |
| 1935 Residence (City) | City of Gretna |
| 1935 Residence (County) | Jefferson |
| Highest Grade | No 4 |
| 1935 Residence | Same place |
| Birth State | Louisiana |
| Birth Country | United States |
| Birthplace (normalized) | louisiana |
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 John Sparks across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
John Sparks
Head · 1940 · age 65 · b. ~1875 · Louisiana
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Jefferson-County, Louisiana
Open full size
1940 US Federal Census — Jefferson-County, Louisiana
Page Contents
38 people indexed on this census page (nara:1940:m-t0627-01406-00181)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Katie Legendre | 50 | Head | — | Louisiana |
| 42 | Julia Legendre | 79 | mother | — | Louisiana |
| 44 | Vicky Jones | 63 | Head | — | Louisiana |
| 45 | Herbert Washington | 10 | grandson | — | Louisiana |
| 46 | Martha Cooper | 24 | Head | — | Louisiana |
| 47 | Nellie C. Jones | 57 | daughter | — | Louisiana |
| 48 | Harold Cooper | 21 | nephew | New Worker | Louisiana |
| 49 | John Adones | 58 | lodger | Labour | Louisiana |
| 50 | Eddie Williams | 37 | Head | Labour | Louisiana |
| 51 | Florence Williams | 37 | wife | — | Louisiana |
| 52 | Eddie Williams | 2 | daughter | — | Louisiana |
| 53 | Juanita Williams | 0 | daughter | — | Louisiana |
| 54 | Samuel Sparks | 62 | Head | Sweeper | Louisiana |
| 55 | Eloise Robinson | 30 | Head | Laundress | Louisiana |
| 56 | Rosalee Black | 12 | daughter | — | Louisiana |
| 57 | Delores Black | 9 | daughter | — | Louisiana |
| 58 | Charles Black | 5 | son | — | Louisiana |
| 59 | Sylvester Black | 46 | lodger | — | Louisiana |
| 60 | Leavie Jackson | 38 | Head | Maid | Louisiana |
| 61 | Minty Hill | 59 | mother | — | Louisiana |
| 62 | Joseph Butler | 46 | Head | Labour | Louisiana |
| 63 | Miep Simmons | 43 | lodger | Maid | Louisiana |
| 64 | John Sparks THIS PERSON | 65 | Head | — | Louisiana |
| 65 | Ella Sparks | 59 | wife | — | Louisiana |
| 66 | Edward Crosby | 6 | son | — | Louisiana |
| 68 | John Fleury | 54 | Head | District Attorney | Louisiana |
| 69 | Lillian Fleury | 52 | wife | — | Louisiana |
| 70 | Theresa Dazet | 65 | Head | — | Louisiana |
| 71 | Althea Gugel | 31 | daughter | Teacher | Louisiana |
| 72 | Enelada Legendre | 25 | daughter | Teacher | Louisiana |
| 73 | Beverly Legendre | 26 | granddaughter | Machinist | Louisiana |
| 74 | Jane Legendre | 1 | granddaughter | — | Louisiana |
| 75 | Anton Coppengane | 42 | Head | Civil Engineer | Holland |
| 76 | Sophie Coppengane | 34 | wife | — | Holland |
| 77 | Anton Jr. Coppengane | 12 | son | — | Louisiana |
| 78 | Appolina Spies | 49 | Head | — | Louisiana |
| 79 | Gertrude Spies | 41 | sister | Post Office Clerk | Louisiana |
| 80 | Annie Spies | 39 | sister | — | Louisiana |
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)