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John Alexander — 1940 US Census Record
Model Tree available1940 United States Federal Census · Manatee-County, Florida
Our Model Tree links this John Alexander across the 1920, 1930 and 1940 US Censuses in Manatee-County, Florida (XGBoost, ~Confirmed), with identified parents Rose — first a head (b.~1908), then head of a 10-person household.
Age 32
b. ~1908
Male
Head
Born: Florida
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Manatee-County, Florida |
| Surname | Alexander |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | Black |
| Age | 32 |
| Marital Status | Married |
| Birthplace | Florida |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Manatee |
| Additional Details | |
| Occupation | Farm laborer |
| Industry | Farm |
| Class of Worker | PW |
| Hours Worked | 55 |
| Income (1939) | 270 |
| Highest Grade | No 7 |
| 1935 Residence | Florida |
| Birth State | Florida |
| Birth Country | United States |
| Birthplace (normalized) | florida |
| Occupation | Farm Laborer |
| Township / Ward | Palmetto |
| Est. Birth Year | ~1908 |
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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Ruby Alexander | Daughter | — | 2 | ~1938 |
| Fannie Alexander | Daughter | — | 16 | ~1924 |
| Caritha Alexander | Daughter | — | 17 | ~1923 |
| John Alexander | Head | — | 32 | ~1908 |
| Joseph Mitchell | Other | — | 39 | ~1901 |
| Henry Waters | Other | — | 9 | ~1931 |
| Lillie Mitchell | Other | — | 39 | ~1901 |
| Ruth Chance | Other | — | 20 | ~1920 |
| Able Mitchell | Other | — | 14 | ~1926 |
| Gertrude Alexander | Spouse | — | 37 | ~1903 |
Census Appearances
1920
Manatee, Florida
Son, age 12
Manatee, Florida · implied b. ~1908 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Alexander |
| Given Name | John T. |
| Relationship to Head | 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
Manatee, Florida
Head, age 22
Manatee, Florida · implied b. ~1908 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Alexander |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Married |
| Birthplace | Florida |
| Age at First Marriage | 18 |
| Father's Birthplace | Florida |
| Mother's Birthplace | South Carolina |
| Occupation | Laborer |
| Industry | Grove |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 10 |
| Veteran | No |
| Birth State | Florida |
| Birth Country | United States |
| Birthplace (normalized) | florida |
1940
Manatee-County, Florida
Head, age 32
Manatee-County, Florida · implied b. ~1908 — 10 household members
| Surname | Alexander |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | Black |
| Age | 32 |
| Marital Status | Married |
| Birthplace | Florida |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Manatee |
| Occupation | Farm laborer |
| Industry | Farm |
| Class of Worker | PW |
| Hours Worked | 55 |
| Income (1939) | 270 |
| Highest Grade | No 7 |
| 1935 Residence | Florida |
| 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 John Alexander across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Rose Alexander (~0.92 confidence). The pedigree spans 1 generation with 1 identified ancestor.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Rose Alexander
b. ~1873
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Alexander
Head · 1940 · age 32 · b. ~1908 · 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 — Manatee-County, Florida
Open full size
1940 US Federal Census — Manatee-County, Florida
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00599-00065)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Benjamin Brooks | 33 | Head | Farm Laborer | Florida |
| 42 | Aretha Brooks | 33 | Wife | — | Florida |
| 43 | Junior Brooks | 3 | Son | — | Florida |
| 44 | Mattie L. Brooks | 1 | Daughter | — | Florida |
| 45 | Henry Daniel | 66 | Lodger | Farm Laborer | Alabama |
| 46 | John Alexander THIS PERSON | 32 | Head | Farm Laborer | Florida |
| 47 | Gertrude Alexander | 37 | Wife | Farm Laborer | Florida |
| 48 | Caritha Alexander | 17 | Daughter | Farm Laborer | Florida |
| 49 | Fannie F. Alexander | 16 | Daughter | Farm Laborer | Florida |
| 50 | Ruby L. Alexander | 2 | Daughter | — | Florida |
| 51 | Ruth Chance | 20 | Sister-in-law | Farm Laborer | Florida |
| 52 | Henry Waters | 9 | Nephew | — | Florida |
| 53 | Joseph Mitchell | 39 | Lodger | Laborer | Georgia |
| 54 | Lillie A. Mitchell | 39 | Lodger-Wife | Farm Laborer | Florida |
| 55 | Able Mitchell | 14 | Lodger-Son | Farm Laborer | Florida |
| 56 | Jim James | 55 | Head | Farm Laborer | Florida |
| 57 | Susie James | 55 | Wife | Farm Laborer | Florida |
| 58 | Johnny Peterson | 36 | Head | Laborer | Florida |
| 59 | Anabelle Peterson | 34 | Wife | Servant | Florida |
| 60 | Jack Mitchel | 27 | Head | Laborer | Georgia |
| 61 | Lizzie Mitchel | 22 | Wife | Laborer | Florida |
| 62 | Joseph King | 27 | Lodger | Laborer | Florida |
| 63 | George James | 38 | Head | Janitor | Florida |
| 64 | Oria James | 27 | Wife | Farm Laborer | Georgia |
| 65 | Helen James | 13 | Daughter | Farm Laborer | Florida |
| 66 | Ramon Jones | 31 | Head | Laborer | Florida |
| 67 | Lucile Jones | 31 | Wife | Laborer | Florida |
| 68 | Jurelle Jones | 16 | Daughter | — | Florida |
| 69 | Elizabeth Jones | 5 | Daughter | — | Florida |
| 70 | Margaret Jones | 13 | Daughter | — | Florida |
| 71 | Ed Hall | 43 | Head | Bar Tender | Florida |
| 72 | Willie E. Hall | 35 | Wife | Servant | Georgia |
| 73 | Ira D. West | 15 | Daughter | — | Georgia |
| 74 | James Hall | 2 | Son | — | Florida |
| 75 | Mack Williams | 36 | Head | Laborer | Florida |
| 76 | Anita Williams | 26 | Wife | Laundress | Florida |
| 77 | Alveta Williams | 5 | Daughter | — | Florida |
| 78 | Liza Blue | 45 | Head | Laundress | Florida |
| 79 | Mattie L. Patterson | 20 | Lodger | Farm Laborer | Georgia |
| 80 | Mary King | 33 | Lodger | Servant | Georgia |
Pedigree Summary
John
Gen 1 · 1 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)