MS
Mary Sharp — 1940 US Census Record
Model Tree available1940 United States Federal Census · Macoupin-County, Illinois
Our Model Tree links this Mary Sharp across the 1920, 1930 and 1940 US Censuses in Macoupin-County, Illinois (XGBoost, ~Confirmed), with identified parents James & James — first a daughter (b.~1919), then head of a 6-person household.
Age 21
b. ~1919
Female
Daughter
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Macoupin-County, Illinois |
| Surname | Sharp |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Sawyerville Village |
| 1935 Residence (County) | Macoupin |
| Additional Details | |
| Industry | 0 |
| Class of Worker | 0 |
| Income (1939) | 0 |
| Highest Grade | H 4 |
| 1935 Residence | Same House |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Sawyerville Village |
| Est. Birth Year | ~1919 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Violet Sharp | Daughter | — | 18 | ~1922 |
| Mary Sharp | Daughter | — | 21 | ~1919 |
| James Sharp | Head | — | 52 | ~1888 |
| James Sharp | Son | — | 20 | ~1920 |
| John Sharp | Son | — | 25 | ~1915 |
| Margaret Sharp | Spouse | — | 45 | ~1895 |
Census Appearances
1920
Macoupin, Illinois
Daughter, age 2
Macoupin, Illinois · implied b. ~1918 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sharp |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Tennessee |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Macoupin, Illinois
Daughter, age 13
Macoupin, Illinois · implied b. ~1917 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sharp |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Tennessee |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Macoupin-County, Illinois
Daughter, age 21
Macoupin-County, Illinois · implied b. ~1919 — 6 household members
| Surname | Sharp |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Sawyerville Village |
| 1935 Residence (County) | Macoupin |
| Industry | 0 |
| Class of Worker | 0 |
| Income (1939) | 0 |
| Highest Grade | H 4 |
| 1935 Residence | Same House |
| 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 Mary Sharp across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father James Sharp (~0.92 confidence) and father James Sharp (~0.92 confidence) and mother Margaret Sharp (~0.92 confidence) and mother Margaret Sharp (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
James Sharp
b. ~1887
Source father
● Household
· direct · ~0.92
Father
James Sharp
b. ~1890
Source father
● Household
· direct · ~0.92
Mother
Margaret Sharp
b. ~1895
Source mother
● Household
· direct · ~0.92
Mother
Margaret Sharp
b. ~1896
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Sharp
Daughter · 1940 · age 21 · b. ~1919 · Illinois
★ You are viewing this record
Sibling
Violet Sharp
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Sharp
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Sharp
Sibling · 1940 · age 25
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-t0627-00847-00127)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Ann Rehart | 21 | Daughter | New Worker | Illinois |
| 42 | Edward Rehart | 18 | Son | Laborer | Illinois |
| 43 | Mike Rehart | 15 | Son | — | Illinois |
| 44 | Rudolph Stewart | 26 | Head | Electrician | Illinois |
| 45 | Violet Stewart | 21 | Wife | — | Illinois |
| 46 | Frank Plovich | 31 | Head | — | Arkansas |
| 47 | Helen Plovich | 24 | Wife | — | Illinois |
| 48 | Frances Plovich | 6 | Daughter | — | Illinois |
| 49 | Anton Verbic | 43 | Head | Electrician | Austria |
| 50 | Julia Verbic | 38 | Wife | — | Italy |
| 51 | William Hausback | 64 | Head | Miner | Lithuania |
| 52 | Antoinette Hausback | 60 | Wife | — | Lithuania |
| 53 | Pete Hausback | 22 | Son | State Orderly | Illinois |
| 54 | Nellie Denny | 38 | Daughter | — | Illinois |
| 55 | Eleanor Denny | 11 | Daughter | — | Illinois |
| 56 | Joseph Hausback | 35 | Head | Laborer | Illinois |
| 57 | Eugene Sawyer | 54 | Head | Automobile Mechanic | Illinois |
| 58 | Lloyd Sawyer | 45 | Brother | Mechanic | Illinois |
| 59 | Augusta Charles | 83 | Aunt | — | Indiana |
| 60 | Mary Charles | 85 | Aunt | — | Indiana |
| 61 | James Sharp | 52 | Head | Miner | Scotland |
| 62 | Margaret Sharp | 45 | Wife | — | Tennessee |
| 63 | John Sharp | 25 | Son | Laborer | Illinois |
| 64 | Mary Sharp THIS PERSON | 21 | Daughter | — | Illinois |
| 65 | James Sharp | 20 | Son | Laborer | Illinois |
| 66 | Violet Sharp | 18 | Daughter | — | Illinois |
| 67 | Jennie Alby | 58 | Head | — | Czechoslovakia |
| 68 | Frank Alby | 29 | Son | Laborer | Illinois |
| 69 | William Alby | 25 | Son | Laborer | Illinois |
| 70 | Pete Vernetti | 65 | Head | Miner | Italy |
| 71 | Anna Vernetti | 59 | Wife | — | Italy |
| 72 | Raymond Vernetti | 29 | Son | Owner | Ohio |
| 73 | Alma Vernetti | 25 | Daughter | — | Ohio |
| 74 | Matiej Sidaravigie | 58 | Head | Miner | Lithuania |
| 75 | Mary Sidaravigie | 55 | Wife | — | Lithuania |
| 76 | Pete Sidaravigie | 24 | Son | Automobile Mechanic | Iowa |
| 77 | Pete Baloon | 48 | Head | Miner | Lithuania |
| 78 | Mary Baloon | 45 | Wife | — | Lithuania |
| 79 | Pete Jr. Baloon | 21 | Son | Laborer | Illinois |
| 80 | Caroline Baloon | 11 | Daughter | — | Illinois |
Related Census Records
Pedigree Summary
Mary + 3 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)