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Mary Buchanan — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Bay-County, Florida
Our Model Tree links this Mary Buchanan across the 1920, 1930 and 1940 US Censuses in Bay-County, Florida (XGBoost, ~Confirmed) — first a spouse (b.~1896), then head of a 7-person household.
Age 44
b. ~1896
Female
Spouse
Born: Georgia
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Bay-County, Florida |
| Surname | Buchanan |
| Given Name | Mary E. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Georgia |
| 1935 Residence (City) | Bay |
| 1935 Residence (County) | Bay |
| Additional Details | |
| Highest Grade | No 8 |
| 1935 Residence | Same House |
| Birth State | Georgia |
| Birth Country | United States |
| Birthplace (normalized) | georgia |
| Est. Birth Year | ~1896 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Lafayette Buchanan | Son | — | 20 | ~1920 |
| Mary Buchanan | Spouse | — | 44 | ~1896 |
| James Buchanan | Head | — | 49 | ~1891 |
| Margie Buchanan | Daughter | — | 1 | ~1939 |
| T Buchanan | Son | — | 17 | ~1923 |
| Dolly Buchanan | Daughter | — | 6 | ~1934 |
| Dorothy Buchanan | Daughter | — | 10 | ~1930 |
Census Appearances
1920
Bay, Florida
Spouse, age 22
Bay, Florida · implied b. ~1898 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Buchanan |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Married |
| Birthplace | Georgia |
| Father's Birthplace | Georgia |
| Mother's Birthplace | Georgia |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Georgia |
| Birth Country | United States |
| Birthplace (normalized) | georgia |
1930
Bay, Florida
Spouse, age 33
Bay, Florida · implied b. ~1897 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Buchanan |
| Given Name | Mary E. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Georgia |
| Age at First Marriage | 17 |
| Father's Birthplace | Georgia |
| Mother's Birthplace | Georgia |
| Can Read/Write | Yes |
| Birth State | Georgia |
| Birth Country | United States |
| Birthplace (normalized) | georgia |
1940
Bay-County, Florida
Spouse, age 44
Bay-County, Florida · implied b. ~1896 — 7 household members
| Surname | Buchanan |
| Given Name | Mary E. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Georgia |
| 1935 Residence (City) | Bay |
| 1935 Residence (County) | Bay |
| Highest Grade | No 8 |
| 1935 Residence | Same House |
| Birth State | Georgia |
| Birth Country | United States |
| Birthplace (normalized) | georgia |
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 Mary Buchanan across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Buchanan
Spouse · 1940 · age 44 · b. ~1896 · Florida
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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 — Bay-County, Florida
Open full size
1940 US Federal Census — Bay-County, Florida
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00574-00742)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Ray Buchanan | 8 | Son | — | Florida |
| 42 | Mollie Buchanan | 73 | Head | — | Alabama |
| 43 | Ida Buchanan | 41 | Daughter | — | Florida |
| 44 | Hardy Ray | 33 | Roomer | — | Florida |
| 45 | Walter Lee Ray | 11 | Son | — | Florida |
| 46 | Charles H. Ray | 8 | Son | — | Florida |
| 47 | James Buchanan | 49 | Head | Forest Ranger | Florida |
| 48 | Mary E. Buchanan THIS PERSON | 44 | Wife | — | Georgia |
| 49 | Lafayette Buchanan | 20 | Son | — | Florida |
| 50 | T. C. H. Buchanan | 17 | Son | — | Florida |
| 51 | Dorothy Buchanan | 10 | Daughter | — | Florida |
| 52 | Dolly Buchanan | 6 | Daughter | — | Florida |
| 53 | Margie Buchanan | 1 | Daughter | — | Florida |
| 54 | J. P. Davis | 59 | Head | Fisherman | Florida |
| 55 | Beulah Davis | 50 | Wife | — | Florida |
| 56 | Edith Davis | 15 | Daughter | — | Florida |
| 57 | Charlie Jackson | 58 | Head | Merchant | Georgia |
| 58 | Birdie Jackson | 57 | Wife | — | Georgia |
| 59 | Rubbie Jackson | 24 | Daughter | — | Georgia |
| 60 | Lee Cecil Jackson | 15 | Son | — | Florida |
| 61 | B. F. Bennett | 43 | Head | Seaman | Alabama |
| 62 | Ethel Bennett | 40 | Wife | — | Florida |
| 63 | Juanita Bennett | 18 | Daughter | — | Florida |
| 64 | Hilton Bennett | 15 | Son | — | Florida |
| 65 | Harriet Barrett | 5 | Roomer | — | Florida |
| 66 | John A. Andrews | 46 | Head | Forest Ranger | Florida |
| 67 | Irene Andrews | 33 | Wife | — | Florida |
| 68 | Alma L. Andrews | 5 | Daughter | — | Florida |
| 69 | John Jr. Andrews | 4 | Son | — | Florida |
| 70 | George Anderson | 58 | Head | Laborer | Florida |
| 71 | Plestine Anderson | 45 | Wife | — | Alabama |
| 72 | Burruss Anderson | 27 | Son | Truck Driver | Florida |
| 73 | Rosa Anderson | 19 | Son | Truck Driver | Florida |
| 74 | Margaret Anderson | 16 | Daughter | — | Florida |
| 75 | Joyce Anderson | 14 | Daughter | — | Florida |
| 76 | Wade Anderson | 7 | Son | — | Florida |
| 77 | Ismeal Cream | 49 | Head | State | Georgia |
| 78 | Alma Cream | 45 | Wife | — | Alabama |
| 79 | J. W. Cream | 21 | Son | Wood Cutter | Florida |
| 80 | Ruth Cream | 14 | Daughter | — | Florida |
Related Census Records
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)