MT
Margaret Thompson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Jefferson-County, Alabama
Our Model Tree links this Margaret Thompson across the 1920, 1930 and 1940 US Censuses in Jefferson-County, Alabama (XGBoost, ~Confirmed), with identified parents Jessie & James — first a daughter (b.~1915), then head of a 3-person household.
Age 25
b. ~1915
Female
Daughter
Born: Alabama
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Jefferson-County, Alabama |
| Surname | Thompson |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Alabama |
| 1935 Residence (City) | BIRMINGHAM |
| 1935 Residence (County) | JEFFERSON |
| Additional Details | |
| Occupation | Stenographer |
| Industry | Real Estate Office |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 936 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
| Occupation | Stenographer |
| Township / Ward | Birmingham |
| Est. Birth Year | ~1915 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Margaret | Age | Birth yr |
|---|---|---|---|---|
| Margaret Thompson | Daughter | — | 25 | ~1915 |
| James Thompson | Head | — | 44 | ~1896 |
| Jessie Thompson | Spouse | — | 45 | ~1895 |
Census Appearances
1920
Jefferson, Alabama
Other, age 3
Jefferson, Alabama · implied b. ~1917 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Margaret G |
| Relationship to Head | Niece |
| Sex | F |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Alabama |
| Father's Birthplace | Alabama |
| Mother's Birthplace | Alabama |
| Occupation | Salesman |
| Industry | Hardware Co |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
1930
Jefferson, Alabama
Daughter, age 14
Jefferson, Alabama · implied b. ~1916 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Margaret A |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Alabama |
| Father's Birthplace | Alabama |
| Mother's Birthplace | Alabama |
| Can Read/Write | Yes |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
1940
Jefferson-County, Alabama
Daughter, age 25
Jefferson-County, Alabama · implied b. ~1915 — 3 household members
| Surname | Thompson |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Alabama |
| 1935 Residence (City) | BIRMINGHAM |
| 1935 Residence (County) | JEFFERSON |
| Occupation | Stenographer |
| Industry | Real Estate Office |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 936 |
| Highest Grade | H 4 |
| 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 Margaret Thompson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Jessie Thompson (~0.92 confidence) and father James Thompson (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Jessie Thompson
b. ~1895
Source mother
● Household
· direct · ~0.92
Father
James Thompson
b. ~1896
Source father
● Household
· direct · ~0.92
This person
Anchor record
Margaret Thompson
Daughter · 1940 · age 25 · b. ~1915 · Alabama
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Jefferson-County, Alabama
Open full size
1940 US Federal Census — Jefferson-County, Alabama
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-00091-00696)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Dianne Woodin | 4 | Daughter | — | Alabama |
| 42 | Velma Canon | 60 | In-law | — | Alabama |
| 43 | Carl O. Darnell | 42 | Head | Special Fireman | Missouri |
| 44 | Bertha M. Darnell | 45 | Wife | — | Alabama |
| 45 | Alex H. Staples | 41 | Head | Science Teacher | Alabama |
| 46 | Margaret E. Staples | 39 | Wife | — | Alabama |
| 47 | Jack E. Staples | 11 | Son | — | Alabama |
| 48 | Margaret L. Staples | 7 | Daughter | — | Alabama |
| 49 | Clarence Smith | 45 | Head | Truck Driver | Alabama |
| 50 | Helen Smith | 39 | Wife | — | Alabama |
| 51 | Marie O. Smith | 18 | Daughter | — | Alabama |
| 52 | Clarence W. Smith | 10 | Son | — | Alabama |
| 53 | John B. Smith | 8 | Son | — | Alabama |
| 54 | R. Bentley Babb | 30 | Head | Chief Clerk | Alabama |
| 55 | Margaret Brown | 29 | Wife | — | Alabama |
| 56 | Peggy Hale Brown | 10 | Daughter | — | Alabama |
| 57 | Bradley Jr. Brown | 7 | Son | — | Alabama |
| 58 | Marilyn Brown | 1 | Daughter | — | Alabama |
| 60 | Margaret Clouse | 37 | Head | P.B.X. Operator | Tennessee |
| 61 | Peter B. Clouse | 85 | Father | — | Tennessee |
| 62 | Floy Honicker | 36 | Lodger | — | Georgia |
| 63 | Elizabeth Hicks | 64 | Head | — | New York |
| 64 | Ruth E. Hicks | 39 | Daughter | Stenographer | Illinois |
| 65 | Helen Hicks | 24 | Daughter | Stenographer | Iowa |
| 66 | John H. Hicks | 26 | Son | Inspector | Iowa |
| 67 | Mayo B. Hicks | 21 | Daughter | Stenographer | Alabama |
| 68 | James B. Thompson | 44 | Head | Welder | Pennsylvania |
| 69 | Jessie Thompson | 45 | Wife | — | Alabama |
| 70 | Margaret Thompson THIS PERSON | 25 | Daughter | Stenographer | Alabama |
| 71 | Rufus H. Hancock | 42 | Head | Carpenter | Georgia |
| 72 | Willie Hancock | 41 | Wife | — | Alabama |
| 73 | Hartwell Hancock | 17 | Son | — | Alabama |
| 74 | Alta Jean Hancock | 12 | Daughter | — | Alabama |
| 75 | Jinnie Blackstone | 75 | Lodger | — | Alabama |
| 76 | Jack Calloway | 30 | Head | Lineman | Alabama |
| 77 | Evelyn Calloway | 28 | Wife | — | Alabama |
| 78 | Harry H. Calloway | 6 | Son | — | Alabama |
| 79 | Ellen S. Calloway | 3 | Daughter | — | Alabama |
| 80 | Emily Calloway | 57 | Mother | — | Alabama |
Pedigree Summary
Margaret
Gen 1 · 2 parents
~0.92
Max depth 4 (1900–1950 window)
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)