MT
Margaret Thompson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Lee-County, Iowa
Our Model Tree links this Margaret Thompson across the 1920, 1930 and 1940 US Censuses in Lee-County, Iowa (XGBoost, ~Confirmed), with identified parents Charles & Mary — first a daughter (b.~1916), then head of a 8-person household.
Age 24
b. ~1916
Female
Daughter
Born: Missouri
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Lee-County, Iowa |
| Surname | Thompson |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Missouri |
| 1935 Residence (City) | R. |
| 1935 Residence (County) | Lee |
| Additional Details | |
| Occupation | Fancy Stitching |
| Industry | Shoe Factory |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 448 |
| Highest Grade | Hs 4 |
| 1935 Residence | Iowa |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
| Occupation | Fancy Stitching |
| Township / Ward | Keokuk |
| Est. Birth Year | ~1916 |
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 Margaret | Age | Birth yr |
|---|---|---|---|---|
| Margaret Thompson | Daughter | — | 24 | ~1916 |
| Mary Thompson | Head | — | 58 | ~1882 |
| Patricia Mcnally | Other | — | 4 | ~1936 |
| Mary Thompson | Other | — | 23 | ~1917 |
| Harold Thompson | Son | — | 21 | ~1919 |
| Ralph Thompson | Son | — | 23 | ~1917 |
| Lloyd Thompson | Son | — | 25 | ~1915 |
| John Thompson | Son | — | 20 | ~1920 |
Census Appearances
1920
Lee, Iowa
Daughter, age 4
Lee, Iowa · implied b. ~1916 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Missouri |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Missouri |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
1930
Lee, Iowa
Daughter, age 14
Lee, Iowa · implied b. ~1916 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Margaret E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Missouri |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Missouri |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
1940
Lee-County, Iowa
Daughter, age 24
Lee-County, Iowa · implied b. ~1916 — 8 household members
| Surname | Thompson |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Missouri |
| 1935 Residence (City) | R. |
| 1935 Residence (County) | Lee |
| Occupation | Fancy Stitching |
| Industry | Shoe Factory |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 448 |
| Highest Grade | Hs 4 |
| 1935 Residence | Iowa |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
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: father Charles Thompson (~0.92 confidence) and mother Mary Thompson (~0.92 confidence) and mother Mary Thompson (~0.92 confidence) and father Charles Thompson (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Charles Thompson
b. ~1882
Source father
● Household
· direct · ~0.92
Mother
Mary Thompson
b. ~1882
Source mother
● Household
· direct · ~0.92
Mother
Mary Thompson
b. ~1883
Source mother
● Household
· direct · ~0.92
Father
Charles Thompson
b. ~1889
Source father
● Household
· direct · ~0.92
This person
Anchor record
Margaret Thompson
Daughter · 1940 · age 24 · b. ~1916 · Iowa
★ You are viewing this record
Sibling
Ralph Thompson
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lloyd Thompson
Sibling · 1940 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Thompson
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Harold Thompson
Sibling · 1940 · age 21
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 — Lee-County, Iowa
Open full size
1940 US Federal Census — Lee-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01174-00480)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Joseph E. Haskin | 7 | Son | — | Iowa |
| 42 | Nancy J. Haskin | 4 | Daughter | — | Iowa |
| 43 | Lewis Ehrmann | 33 | Head | Laborer | Missouri |
| 44 | Freda Ehrmann | 24 | Wife | Trained Nurse | Missouri |
| 45 | Gordon R. Davis | 28 | Head | Fireman | Illinois |
| 46 | Luella Davis | 25 | Wife | — | Idaho |
| 47 | Richard Lee Davis | 4 | Son | — | Iowa |
| 48 | Mary Joan Davis | 2 | Daughter | — | Iowa |
| 49 | Betty Jean Davis | 1 | Daughter | — | Iowa |
| 50 | James Mitchell | 35 | Head | Refrigeration | Missouri |
| 51 | Dorothy Mitchell | 29 | Wife | — | Illinois |
| 52 | James Jr. Mitchell | 11 | Son | — | Iowa |
| 53 | Harry R. King | 54 | Head | Plumbing & Heating | Iowa |
| 54 | Edna King | 52 | Wife | — | Iowa |
| 55 | Mary Thompson | 58 | Head | — | Wisconsin |
| 56 | Lloyd Thompson | 25 | Son | Waiter | Missouri |
| 57 | Margaret Thompson THIS PERSON | 24 | Daughter | Fancy Stitching | Missouri |
| 58 | Ralph Thompson | 23 | Son | — | Wisconsin |
| 59 | Harold Thompson | 21 | Son | Waiter | Iowa |
| 60 | John Thompson | 20 | Son | Waiter | Iowa |
| 61 | Patricia Mcnally | 4 | Daughter in law | — | Iowa |
| 62 | Mary D. Thompson | 23 | Daughter in law | New Worker | Iowa |
| 63 | Louis Betts | 26 | Head | Truck Driver | Iowa |
| 64 | Wilma Betts | 22 | Wife | — | Iowa |
| 65 | Louis Jr. Betts | 2 | Son | — | Iowa |
| 66 | John Betts | 1 | Son | — | Iowa |
| 67 | Ralph Fellows | 25 | Head | Laborer | Iowa |
| 68 | Catherine Fellows | 23 | Wife | — | Iowa |
| 69 | Richard Fellows | 6 | Son | — | Iowa |
| 70 | Betty J. Fellows | 4 | Daughter | — | Iowa |
| 71 | Jack Fellows | 1 | Son | — | Iowa |
| 72 | Harry Kriel | 53 | Head | Laborer | Iowa |
| 73 | Earl Talley | 61 | Head | Painter | Illinois |
| 74 | Madeline Talley | 54 | Wife | — | Iowa |
| 75 | Carl V. Lanstedt | 87 | Father in law | — | Sweden |
| 76 | Florence Corwin | 47 | Head | — | Kentucky |
| 77 | James Corwin | 12 | Son | — | Kentucky |
| 78 | Lena M. Toppers | 46 | Head | Operator | Iowa |
| 79 | Mollie Seabold | 79 | Head | Clerk | Iowa |
| 80 | Wanda Emma Seabold | 68 | Sister | Clerk | Iowa |
Pedigree Summary
Margaret + 4 siblings
Gen 1 · 4 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)