IT
Isaac Thompson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Russell-County, Alabama
Our Model Tree links this Isaac Thompson across the 1930 and 1940 US Censuses in Russell-County, Alabama (XGBoost, ~Confirmed) — first a son (b.~1917), then head of a 7-person household.
Age 23
b. ~1917
Male
Son
Born: Alabama
Widowed
1940 Census Record Details
| Census Year | 1940 |
| Location | Russell-County, Alabama |
| Surname | Thompson |
| Given Name | Isaac Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 23 |
| Marital Status | Widowed |
| Birthplace | Alabama |
| 1935 Residence (City) | Russell |
| 1935 Residence (County) | Russell |
| Additional Details | |
| Occupation | Laborer |
| Industry | Gov. work |
| Class of Worker | GW |
| Hours Worked | 40 |
| Income (1939) | 100 |
| Highest Grade | No 1 |
| 1935 Residence | Same place |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
| Occupation | Laborer |
| Est. Birth Year | ~1917 |
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 Isaac | Age | Birth yr |
|---|---|---|---|---|
| Isaac Thompson | Son | — | 23 | ~1917 |
| Comer Thompson | Son | — | 14 | ~1926 |
| Robert Thompson | Son | — | 2 | ~1938 |
| Will Thompson | Head | — | 61 | ~1879 |
| Annie Thompson | Daughter | — | 20 | ~1920 |
| Zola Thompson | Daughter | — | 7 | ~1933 |
| William Thompson | Other | — | 42 | ~1898 |
Census Appearances
1930
Macon, Alabama
Son, age 14
Macon, Alabama · implied b. ~1916 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Isaac Jr |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Alabama |
| Father's Birthplace | Alabama |
| Mother's Birthplace | Alabama |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
1940
Russell-County, Alabama
Son, age 23
Russell-County, Alabama · implied b. ~1917 — 7 household members
| Surname | Thompson |
| Given Name | Isaac Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 23 |
| Marital Status | Widowed |
| Birthplace | Alabama |
| 1935 Residence (City) | Russell |
| 1935 Residence (County) | Russell |
| Occupation | Laborer |
| Industry | Gov. work |
| Class of Worker | GW |
| Hours Worked | 40 |
| Income (1939) | 100 |
| Highest Grade | No 1 |
| 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 Isaac Thompson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Isaac Thompson
Son · 1940 · age 23 · b. ~1917 · Alabama
★ You are viewing this record
Sibling
Annie Thompson
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Thompson
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Comer Thompson
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Zola Thompson
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Russell-County, Alabama
Open full size
1940 US Federal Census — Russell-County, Alabama
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00077-00872)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Willie E. Elias | 29 | Head | Laborer | Alabama |
| 42 | Lula Mae Elias | 28 | Wife | — | Alabama |
| 43 | Jimmy Lee Elias | 7 | Son | — | Alabama |
| 44 | Emma Redding | 90 | Lodger | — | Alabama |
| 45 | Irene Moore | 62 | Head | Farming | Alabama |
| 46 | Chas L. Moore | 11 | Son | — | Alabama |
| 47 | Samuel R. Moore | 51 | Head | Farmer | Alabama |
| 48 | Oleta Moore | 24 | Daughter | Laborer | Alabama |
| 49 | H. L. Moore | 23 | Son | Laborer | Alabama |
| 50 | Dorothy L. Moore | 22 | Daughter | Waitress | Alabama |
| 51 | Elizabeth Moore | 21 | Daughter | Housekeeper | Alabama |
| 52 | Richard Jr. Moore | 18 | Son | — | Alabama |
| 53 | Grant J. Grant | 29 | Head | Farmer | Alabama |
| 54 | Isabel Grant | 27 | Wife | Farmer | Alabama |
| 55 | Susie Mae Grant | 8 | Daughter | — | Alabama |
| 56 | Grant Jr. Grant | 6 | Son | — | Alabama |
| 57 | Lena Mae Grant | 4 | Daughter | — | Alabama |
| 58 | Robt Lee Grant | 2 | Son | — | Alabama |
| 59 | Isabel Grant | 1 | Daughter | — | Alabama |
| 60 | Andrew James | 56 | Lodger | Laborer | Alabama |
| 61 | Will Thompson | 61 | Head | Farmer | Georgia |
| 62 | William Almana Thompson | 42 | Cousin | Housekeeper | Alabama |
| 63 | Isaac Jr. Thompson THIS PERSON | 23 | Son | Laborer | Alabama |
| 64 | Annie B. Thompson | 20 | Daughter | N. P. | Alabama |
| 65 | Comer Thompson | 14 | Son | Laborer | Alabama |
| 66 | Zola M. Thompson | 7 | Daughter | — | Alabama |
| 67 | Robert Thompson | 2 | Son | — | Alabama |
| 68 | John I. Corbett | 56 | Head | Farmer | Alabama |
| 69 | Emma B. Corbett | 54 | Wife | Housewife | Alabama |
| 70 | Sterling Corbett | 21 | Son | — | Alabama |
| 71 | Daniel L. Butler | 65 | Head | Farmer | Alabama |
| 72 | Lucretia Butler | 58 | Wife | Housekeeper | Alabama |
| 73 | Hair Lee Butler | 28 | Son | Laborer | Alabama |
| 74 | John A. Butler | 23 | Son | Public Work | Alabama |
| 75 | Nimrod Butler | 20 | Son | Public Work | Alabama |
| 76 | Mary A. Butler | 19 | Daughter | Family Work | Alabama |
| 77 | Mattie E. Butler | 16 | Daughter | — | Alabama |
| 78 | Curtis B. Butler | 10 | Son | Invalid Child | Alabama |
| 79 | Daniel Jr. Butler | 9 | Son | — | Alabama |
| 80 | Katie B. Butler | 5 | Daughter | — | 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)