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Isaac Johnson — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Mobile, Alabama
Our Model Tree links this Isaac Johnson across the 1910, 1920 and 1930 US Censuses in Mobile, Alabama (XGBoost, ~Confirmed) — first a head (b.~1885), then head of a 14-person household.
Age 45
b. ~1885
Male
Head
Born: Alabama
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Mobile, Alabama |
| Surname | Johnson |
| Given Name | Isaac |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | Black |
| Age | 45 |
| Marital Status | Married |
| Birthplace | Alabama |
| Age at First Marriage | 21 |
| Father's Birthplace | Virginia |
| Mother's Birthplace | Virginia |
| Additional Details | |
| Occupation | Laborer |
| Industry | Saw Mill |
| Class of Worker | W |
| Can Read/Write | No |
| Home Owned/Rented | O |
| Radio Set | R |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
| Occupation | Laborer |
| Township / Ward | Toulminville Precinct 10 Part Of |
| Est. Birth Year | ~1885 |
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.
14 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Isaac | Age | Birth yr |
|---|---|---|---|---|
| Genevive Johnson | Daughter | — | 12 | ~1918 |
| Rosa Johnson | Daughter | — | 12 | ~1918 |
| Irene Johnson | Daughter | — | 8 | ~1922 |
| Cyrilla Johnson | Daughter | — | 20 | ~1910 |
| Arvella Johnson | Daughter | — | 18 | ~1912 |
| Isaac Johnson | Head | — | 45 | ~1885 |
| Alfred Johnson | Son | — | 6 | ~1924 |
| Fred Johnson | Son | — | 2 | ~1928 |
| Rogers Johnson | Son | — | 10 | ~1920 |
| Cordell Johnson | Son | — | 4 | ~1926 |
| Ruben Johnson | Son | — | 16 | ~1914 |
| Willie Johnson | Son | — | 14 | ~1916 |
| Jack Johnson | Son | — | 9 | ~1921 |
| Annie Johnson | Spouse | — | 40 | ~1890 |
Census Appearances
1910
Mobile, Alabama
Head, age 32
Mobile, Alabama · implied b. ~1878 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Isaac |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | Black |
| Age | 32 |
| Marital Status | Married |
| Birthplace | Alabama |
| Years Married | 11 |
| Father's Birthplace | Alabama |
| Mother's Birthplace | Alabama |
| Occupation | Laborer |
| Industry | Lumber yard |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
1920
Mobile, Alabama
Head, age 40
Mobile, Alabama · implied b. ~1880 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Isaac |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | Black |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Alabama |
| Father's Birthplace | Alabama |
| Mother's Birthplace | Alabama |
| Occupation | Laborer |
| Industry | Yard |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | R |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
1930
Mobile, Alabama
Head, age 45
Mobile, Alabama · implied b. ~1885 — 14 household members
| Surname | Johnson |
| Given Name | Isaac |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | Black |
| Age | 45 |
| Marital Status | Married |
| Birthplace | Alabama |
| Age at First Marriage | 21 |
| Father's Birthplace | Virginia |
| Mother's Birthplace | Virginia |
| Occupation | Laborer |
| Industry | Saw Mill |
| Class of Worker | W |
| Can Read/Write | No |
| Home Owned/Rented | O |
| Radio Set | R |
| 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 Isaac Johnson across 3 US Census years (1910, 1920 and 1930) in Mobile, Alabama, using XGBoost record linkage.
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This person
Anchor record
Isaac Johnson
Head · 1930 · age 45 · b. ~1885 · Alabama
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Mobile, Alabama
Open full size
1930 US Federal Census — Mobile, Alabama
Page Contents
50 people indexed on this census page (ia:1930:15thcensus40usce:0889)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | M. J. Taylor | 42 | Head | Storekeeper | Mississippi |
| 2 | Doc Doe | 29 | Head | Machine Shop | Alabama |
| 3 | Ellen Doe | 21 | Wife | Cook | Alabama |
| 4 | Esther Thomas | 59 | Mother | — | Alabama |
| 5 | Beatrice Gaston | 20 | Niece | Bushel Girl | Alabama |
| 6 | Isaac Johnson THIS PERSON | 45 | Head | Laborer | Alabama |
| 7 | Annie Johnson | 40 | Wife | Laundress | Alabama |
| 8 | Cyrilla Johnson | 20 | Daughter | Cook | Alabama |
| 9 | Arvella Johnson | 18 | Daughter | Servant | Alabama |
| 10 | Ruben Johnson | 16 | Son | — | Alabama |
| 11 | Willie Johnson | 14 | Son | — | Alabama |
| 12 | Rosa Lee Johnson | 12 | Daughter | — | Alabama |
| 13 | Genevive Johnson | 12 | Daughter | — | Alabama |
| 14 | Rogers William Johnson | 10 | Son | — | Alabama |
| 15 | Jack Humphrey Johnson | 9 | Son | — | Alabama |
| 16 | Irene Johnson | 8 | Daughter | — | Alabama |
| 17 | Alfred Henry Johnson | 6 | Son | — | Alabama |
| 18 | Cordell Johnson | 4 | Son | — | Alabama |
| 19 | Fred Johnson | 2 | Son | — | Alabama |
| 20 | Anderson | 74 | Head | — | Virginia |
| 21 | Nellie Anderson | 38 | Wife | Cook | Alabama |
| 22 | W. G. Daffin | 38 | Head | Gardener | Mississippi |
| 23 | Ida Daffin | 32 | Wife | Laundress | Alabama |
| 24 | E. R. Reese | 45 | Head | Truck Driver | Alabama |
| 25 | Mary Reese | 40 | Wife | — | Alabama |
| 26 | J. C. Reese | 21 | Son | Laborer | Alabama |
| 27 | Lou Annie Reese | 13 | Daughter | — | Alabama |
| 28 | Dave Reese | 11 | Son | — | Alabama |
| 29 | Henry Williams | 27 | Head | Dairy Worker | Alabama |
| 30 | Lillie Williams | 23 | Wife | — | Alabama |
| 31 | John Williams | 4 | Son | — | Alabama |
| 32 | Willie Williams | 1 | Son | — | Alabama |
| 33 | Eula Mclee | 40 | Head | Laundress | Alabama |
| 34 | Thelma Mclee | 18 | Daughter | — | Alabama |
| 35 | Frank Mclee | 16 | Son | Lumberman | Alabama |
| 36 | Willie Thomas | 49 | Head | Bushel | Alabama |
| 37 | Thomas | 18 | Son | — | Alabama |
| 38 | Thomas | 17 | Son | — | Alabama |
| 39 | Lawrence Bennett | 35 | Head | Laborer | Alabama |
| 40 | Louise Bennett | 31 | Wife | Cook | Alabama |
| 41 | Lawrence Jr. Bennett | 14 | Son | — | Alabama |
| 42 | Angerola Bennett | 13 | Daughter | — | Alabama |
| 43 | Arthur J. Bennett | 9 | Son | — | Alabama |
| 44 | Bennett | 8 | Son | — | Alabama |
| 45 | Sarah May Bennett | 6 | Daughter | — | Alabama |
| 46 | Lula Bennett | 4 | Daughter | — | Alabama |
| 47 | Lelia Mae Bennett | 1 | Daughter | — | Alabama |
| 48 | Frank Cook | 65 | Head | Laborer | Alabama |
| 49 | Rachael Cook | 58 | Wife | — | Alabama |
| 50 | William Mason | 23 | Head | Laborer | Alabama |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)