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Isaac Johnson — 1930 US Census Record
Model Tree available1930 United States Federal Census · Montgomery, Alabama
Our Model Tree links this Isaac Johnson across the 1900, 1910, 1920 and 1930 US Censuses in Montgomery, Alabama (XGBoost, ~Confirmed), with identified parents Maria & Donella — first a head (b.~1902), then head of a 5-person household.
Age 28
b. ~1902
Male
Head
Born: Alabama
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Montgomery, Alabama |
| Surname | Johnson |
| Given Name | Isaac |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | Black |
| Age | 28 |
| Marital Status | Married |
| Birthplace | Alabama |
| Age at First Marriage | 23 |
| Father's Birthplace | Alabama |
| Mother's Birthplace | Alabama |
| Additional Details | |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 8 |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
| Township / Ward | Montgomery City |
| Est. Birth Year | ~1902 |
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.
5 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Isaac | Age | Birth yr |
|---|---|---|---|---|
| Rula Johnson | Daughter | — | 2 | ~1928 |
| Jessie Johnson | Daughter | — | 4 | ~1926 |
| Mary Johnson | Daughter | — | 6 | ~1924 |
| Isaac Johnson | Head | — | 28 | ~1902 |
| Lonie Johnson | Other | — | 22 | ~1908 |
Census Appearances
1900
Lowndes, Alabama
Son, age 1
Lowndes, Alabama · implied b. ~1899 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Isaac |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Alabama |
| Birth Month | Dec |
| Birth Year | 1899 |
| Father's Birthplace | Alabama |
| Mother's Birthplace | Alabama |
| Occupation | Farm Laborer |
| Can Read | No |
| Can Write | No |
| Speaks English | No |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
1910
Lowndes, Alabama
Son, age 11
Lowndes, Alabama · implied b. ~1899 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Isaac |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Alabama |
| Father's Birthplace | Alabama |
| Mother's Birthplace | Alabama |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
1920
Montgomery, Alabama
Head, age 21
Montgomery, Alabama · implied b. ~1899 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Isaac |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | Black |
| Age | 21 |
| Marital Status | Married |
| Birthplace | Alabama |
| Father's Birthplace | Alabama |
| Mother's Birthplace | Alabama |
| Occupation | Farmer |
| Industry | General Farm |
| Class of Worker | Em |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | R |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
1930
Montgomery, Alabama
Head, age 28
Montgomery, Alabama · implied b. ~1902 — 5 household members
| Surname | Johnson |
| Given Name | Isaac |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | Black |
| Age | 28 |
| Marital Status | Married |
| Birthplace | Alabama |
| Age at First Marriage | 23 |
| Father's Birthplace | Alabama |
| Mother's Birthplace | Alabama |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 8 |
| 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 4 US Census years (1900, 1910, 1920 and 1930) in 2 locations, using XGBoost record linkage. Identified parents: mother Maria Johnson (~0.92 confidence) and mother Donella Johnson (~0.92 confidence) and father Isah Johnson (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Maria Johnson
b. ~1866
Source mother
● Household
· direct · ~0.92
Mother
Donella Johnson
b. ~1868
Source mother
● Household
· direct · ~0.92
Father
Isah Johnson
b. ~1870
Source father
● Household
· direct · ~0.92
This person
Anchor record
Isaac Johnson
Head · 1930 · age 28 · b. ~1902 · Alabama
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Montgomery, Alabama
Open full size
1930 US Federal Census — Montgomery, Alabama
Page Contents
50 people indexed on this census page (ia:1930:15thcensus43usce:0434)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Sylvester | 6 | Son | — | Alabama |
| 2 | Ruby L | 4 | Son | — | Alabama |
| 3 | John Carter | 41 | Head | — | Georgia |
| 4 | Mary Carter | 31 | Wife-H | Cook | Alabama |
| 5 | Isaac Johnson THIS PERSON | 28 | Head | — | Alabama |
| 6 | Lonie Johnson | 22 | Wife-H | Porter | Alabama |
| 7 | Mary Johnson | 6 | Daughter | Maid | Alabama |
| 8 | Jessie Johnson | 4 | Daughter | — | Alabama |
| 9 | Rula B Johnson | 2 | Daughter | — | Alabama |
| 10 | Adolph Johnson | 48 | Head | — | Alabama |
| 11 | Annie H Johnson | 45 | Wife-H | Porter | Alabama |
| 12 | Phillip Davis | 30 | Roomer | Lumberer | Alabama |
| 13 | Lena Davis | 20 | Roomer | Laborer | Alabama |
| 14 | Joseph Davis | 5 | Son | — | Alabama |
| 15 | Phillip Davis | 4 | Son | — | Alabama |
| 16 | Millie L Davis | 2 | Son | — | Alabama |
| 17 | E C Britton | 44 | Head | — | Alabama |
| 18 | Ida Britton | 40 | Wife-H | Laborer | Alabama |
| 19 | Debbie Britton | 19 | Daughter | — | Alabama |
| 20 | Edna Britton | 18 | Daughter | — | Alabama |
| 21 | Mada Britton | 16 | Daughter | Maid | Alabama |
| 22 | Jamie R Britton | 14 | Daughter | — | Alabama |
| 23 | Theodore Britton | 14 | Son | — | Alabama |
| 24 | Odessa Britton | 11 | Daughter | — | Alabama |
| 25 | Henery Britton | 7 | Son | — | Alabama |
| 26 | Doris M Britton | 5 | Daughter | — | Alabama |
| 27 | E C Jr Britton | 3 | Son | — | Alabama |
| 28 | Eula Walker | 18 | Granddaughter | — | Alabama |
| 29 | Wattis E Walker | 1 | Granddaughter | Maid | Alabama |
| 30 | Lela E Walker | 1 | Granddaughter | — | Alabama |
| 31 | Evelyn Walker | 1 | Granddaughter | — | Alabama |
| 32 | Julia Cabbott | 40 | Head | — | Alabama |
| 33 | Butler Cabbott | 42 | Head | Lumberer | Alabama |
| 34 | Rufus Cabbott | 18 | Son | Carpenter | Alabama |
| 35 | Lillie P Cabbott | 7 | Daughter | — | Alabama |
| 36 | Catharine Cabbott | 3 | Daughter | — | Alabama |
| 37 | Susie Burns | 40 | Head-H | — | Alabama |
| 38 | Jim Burks | 25 | Head | Cook | Alabama |
| 39 | Lillie Burks | 27 | Wife-H | Porter | Alabama |
| 40 | Wm Norman | 40 | Head | — | Alabama |
| 41 | Sara Norman | 34 | Wife-H | Plasterer | Alabama |
| 42 | James Norman | 21 | Son | Hairdresser | Alabama |
| 43 | Taylor Sam | 50 | Head-H | Porter | Alabama |
| 44 | Hildred Felder | 25 | Head | Laborer | Alabama |
| 45 | Ridener Felder | 20 | Wife-H | Laborer | Alabama |
| 46 | Amos Felder | 1 | Son | — | Alabama |
| 47 | Ethel P Felder | 5 | Daughter | — | Alabama |
| 48 | Monroe Davis | 27 | Head | — | Alabama |
| 49 | Jenetta Davis | 25 | Wife-H | Porter | Alabama |
| 50 | Doris Davis | 6 | Daughter | — | Alabama |
Pedigree Summary
Isaac
Gen 1 · 3 parents
~0.92
Max depth 4 (1900–1950 window)
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)