MJ
Mamie Johnson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Perry-County, Alabama
Our Model Tree links this Mamie Johnson across the 1930 and 1940 US Censuses in Perry-County, Alabama (XGBoost, ~Confirmed) — first a spouse (b.~1899), then head of a 8-person household.
Age 41
b. ~1899
Female
Spouse
Born: Alabama
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Perry-County, Alabama |
| Surname | Johnson |
| Given Name | Mamie |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | Black |
| Age | 41 |
| Marital Status | Married |
| Birthplace | Alabama |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Perry |
| Additional Details | |
| Occupation | Housekeeper |
| Industry | Housekeeper |
| Class of Worker | NP |
| Hours Worked | 50 |
| Highest Grade | No 5 |
| 1935 Residence | Same place |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
| Occupation | Housekeeper |
| Township / Ward | 18 Hamburg |
| Est. Birth Year | ~1899 |
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 Mamie | Age | Birth yr |
|---|---|---|---|---|
| Mamie Johnson | Daughter | — | 11 | ~1929 |
| Katie Johnson | Daughter | — | 16 | ~1924 |
| Mary Johnson | Daughter | — | 4 | ~1936 |
| Albert Johnson | Head | — | 50 | ~1890 |
| Hugh Johnson | Son | — | 7 | ~1933 |
| Albert Johnson | Son | — | 2 | ~1938 |
| Earlie Johnson | Son | — | 8 | ~1932 |
| Mamie Johnson | Spouse | — | 41 | ~1899 |
Census Appearances
1930
Perry, Alabama
Other, age 31
Perry, Alabama · implied b. ~1899 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Mamie |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | Black |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Alabama |
| Age at First Marriage | 18 |
| Father's Birthplace | Alabama |
| Mother's Birthplace | Alabama |
| Can Read/Write | Yes |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
1940
Perry-County, Alabama
Spouse, age 41
Perry-County, Alabama · implied b. ~1899 — 8 household members
| Surname | Johnson |
| Given Name | Mamie |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | Black |
| Age | 41 |
| Marital Status | Married |
| Birthplace | Alabama |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Perry |
| Occupation | Housekeeper |
| Industry | Housekeeper |
| Class of Worker | NP |
| Hours Worked | 50 |
| Highest Grade | No 5 |
| 1935 Residence | Same place |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
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 Mamie Johnson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mamie Johnson
Spouse · 1940 · age 41 · b. ~1899 · Alabama
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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 — Perry-County, Alabama
Open full size
1940 US Federal Census — Perry-County, Alabama
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00073-00178)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Jennie Mae Walker | 20 | Head | Farming | Alabama |
| 2 | Charlie S. J. Walker | 2 | Son | — | Alabama |
| 3 | Henry Tyler | 19 | Head | Farming | Alabama |
| 4 | Mattie Tyler | 16 | Wife | Housekeeper | Alabama |
| 5 | Elvira Tyler | 45 | Mother | Farming | Alabama |
| 6 | Nathan Morgan | 34 | Head | Farm Work | Alabama |
| 7 | Christiana Morgan | 24 | Wife | Housekeeper | Alabama |
| 8 | Willie James Morgan | 9 | Son | — | Alabama |
| 9 | Wilbert Morgan | 8 | Son | — | Alabama |
| 10 | Nathan Jr. Morgan | 6 | Son | — | Alabama |
| 11 | Major Lee Morgan | 4 | Son | — | Alabama |
| 12 | Elizabeth Morgan | 0 | Daughter | — | Alabama |
| 13 | Lonnie Averitte | 25 | Head | Farming | Alabama |
| 14 | Gertrude Averitte | 20 | Wife | Housekeeper | Alabama |
| 15 | Robert Junior Averitte | 1 | Son | — | Alabama |
| 16 | Albert Johnson | 50 | Head | Farming | Alabama |
| 17 | Mamie Johnson THIS PERSON | 41 | Wife | Housekeeper | Alabama |
| 18 | Katie Ruth Johnson | 16 | Daughter | Farm Work | Alabama |
| 19 | Mamie Ree Johnson | 11 | Daughter | — | Alabama |
| 20 | Earlie Johnson | 8 | Son | — | Alabama |
| 21 | Hugh Lee Johnson | 7 | Son | — | Alabama |
| 22 | Mary Lou Johnson | 4 | Daughter | — | Alabama |
| 23 | Albert Jr. Johnson | 2 | Son | — | Alabama |
| 24 | Wilbur Johnson | 23 | Head | Farming | Alabama |
| 25 | Albert Johnson | 14 | Brother | Farming | Alabama |
| 26 | Walter Johnson | 25 | Head | Farming | Alabama |
| 27 | Elbert Johnson | 18 | Brother | Farming | Alabama |
| 28 | Sidney Johnson | 20 | Head | Farming | Alabama |
| 29 | Robert Kelly | 23 | Head | Farming | Alabama |
| 30 | L. P. Kelly | 24 | Wife | Housekeeper | Alabama |
| 31 | Robert L. Kelly | 2 | Son | — | Alabama |
| 32 | Harvey Kelly | 21 | Head | Farming | Alabama |
| 33 | Rosa Belle Kelly | 18 | Wife | Housekeeper | Alabama |
| 34 | Henry Jackson | 31 | Head | Farming | Alabama |
| 35 | Fannie Jackson | 27 | Wife | Housekeeper | Alabama |
| 36 | J. C. Jackson | 16 | Son | Farming | Alabama |
| 37 | John G. Jackson | 14 | Son | — | Alabama |
| 38 | Annie G. Jackson | 11 | Daughter | — | Alabama |
| 39 | James Harrison | 65 | Head | Farming | Alabama |
| 40 | Henry Jr. Atkin | 60 | Head | Farming | Alabama |
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)