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Martha Lee — 1940 US Census Record
Model Tree available1940 United States Federal Census · Macoupin-County, Illinois
Our Model Tree links this Martha Lee across the 1920, 1930 and 1940 US Censuses in Macoupin-County, Illinois (XGBoost, ~Confirmed), with identified parents Roy & Maggie — first a daughter (b.~1918), then head of a 3-person household.
Age 22
b. ~1918
Female
Daughter
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Macoupin-County, Illinois |
| Surname | Lee |
| Given Name | Martha |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chesterfield Village |
| 1935 Residence (County) | Macoupin |
| Additional Details | |
| Occupation | H |
| Industry | 5 |
| Income (1939) | 0 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | H |
| Township / Ward | Chesterfield Village |
| Est. Birth Year | ~1918 |
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 Martha | Age | Birth yr |
|---|---|---|---|---|
| Clyde Lee | Son | — | 24 | ~1916 |
| Minnie Lee | Head | — | 58 | ~1882 |
| Martha Lee | Daughter | — | 22 | ~1918 |
Census Appearances
1920
Macoupin, Illinois
Daughter, age 1
Macoupin, Illinois · implied b. ~1919 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lee |
| Given Name | Martha |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Macoupin, Illinois
Daughter, age 12
Macoupin, Illinois · implied b. ~1918 — 50 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lee |
| Given Name | Martha |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Macoupin-County, Illinois
Daughter, age 22
Macoupin-County, Illinois · implied b. ~1918 — 3 household members
| Surname | Lee |
| Given Name | Martha |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chesterfield Village |
| 1935 Residence (County) | Macoupin |
| Occupation | H |
| Industry | 5 |
| Income (1939) | 0 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
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 Martha Lee across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Roy Lee (~0.92 confidence) and mother Maggie Lee (~0.92 confidence) and mother Minnie Lee (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Roy Lee
b. ~1883
Source father
● Household
· direct · ~0.92
Mother
Maggie Lee
b. ~1886
Source mother
● Household
· direct · ~0.92
Mother
Minnie Lee
b. ~1882
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Martha Lee
Daughter · 1940 · age 22 · b. ~1918 · Illinois
★ You are viewing this record
Sibling
Clyde Lee
Sibling · 1940 · age 24
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 — Macoupin-County, Illinois
Open full size
1940 US Federal Census — Macoupin-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00846-00590)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Edith O Reynolds | 43 | wife | H | Illinois |
| 42 | Charles Reynolds | 12 | son | S | Illinois |
| 43 | Minnie O Lee | 58 | head | Janitor | Illinois |
| 44 | Clyde Lee | 24 | son | Salesman | Illinois |
| 45 | Martha Lee THIS PERSON | 22 | daughter | H | Illinois |
| 46 | Jewell O Sullivan | 65 | head | H | Kentucky |
| 47 | Virgil Powers | 30 | head | Laborer | Illinois |
| 48 | Relna Powers | 26 | wife | H | Illinois |
| 49 | Doris Powers | 4 | daughter | — | Illinois |
| 50 | Mary Powers | 1 | daughter | — | Illinois |
| 51 | George O Angels | 69 | head | U | Illinois |
| 52 | Amelia Angels | 67 | wife | H | Illinois |
| 53 | Elmer O Murphy | 47 | head | Lineman | Illinois |
| 54 | Albert O Sawtell | 79 | head | U | Illinois |
| 55 | Cora M Sawtell | 75 | wife | H | Illinois |
| 56 | Frank Dams | 65 | head | Salesman | Illinois |
| 57 | Rose Dams | 61 | wife | H | Illinois |
| 58 | Luella Mueller | 47 | lodger | Teacher | Illinois |
| 59 | William O Barr | 71 | head | U | Illinois |
| 60 | Mabel Barr | 67 | wife | H | Illinois |
| 61 | Ralph Barr | 31 | son | Handling | Illinois |
| 62 | William Beardmore | 33 | head | Teacher | England |
| 63 | Ester O Beardmore | 35 | wife | H | Illinois |
| 64 | Joy Beardmore | 9 | daughter | — | Texas |
| 65 | William Jr Beardmore | 5 | son | — | Illinois |
| 66 | Lydia Barnstable | 66 | head | H | Illinois |
| 67 | Thomas Skinner | 41 | son | Painter | Illinois |
| 68 | Harold Skinner | 39 | son | Laborer | Illinois |
| 69 | Victoria O Carroll | 59 | head | H | Illinois |
| 70 | Thomas Carroll | 78 | husband | U | Tennessee |
| 71 | Samuel Carroll | 31 | son | Laborer | Illinois |
| 72 | William Dams | 70 | head | Ot | Illinois |
| 73 | Mattie Dams | 68 | wife | H | Illinois |
| 74 | Frank O Holmes | 64 | head | Owner | Illinois |
| 75 | Margaret Holmes | 44 | wife | H | Missouri |
| 76 | Mary O Corney | 85 | head | H | England |
| 77 | Eva Corney | 44 | daughter | Assistant Manager | Illinois |
| 78 | Leslie Berger | 44 | lodger | H | Illinois |
| 79 | Orval Parker | 58 | head | Carpenter | Illinois |
| 80 | Mary Parker | 48 | wife | H | Illinois |
Pedigree Summary
Martha + 1 sibling
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 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)