MS
Mary Shields — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Monroe-County, Indiana
Our Model Tree links this Mary Shields across the 1930 and 1940 US Censuses in Monroe-County, Indiana (XGBoost, ~Confirmed) — first a daughter (b.~1921), then head of a 8-person household.
Age 19
b. ~1921
Female
Daughter
Born: Indiana
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Monroe-County, Indiana |
| Surname | Shields |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Salt Creek Twp |
| 1935 Residence (County) | Monroe |
| Additional Details | |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
| Township / Ward | Salt Creek Twp |
| Est. Birth Year | ~1921 |
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 Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Shields | Daughter | — | 19 | ~1921 |
| Millie Shields | Spouse | — | 41 | ~1899 |
| Martha Shields | Daughter | — | 14 | ~1926 |
| Cleo Shields | Head | — | 42 | ~1898 |
| James Shields | Son | — | 17 | ~1923 |
| Evelyn Shields | Daughter | — | 12 | ~1928 |
| Patty Shields | Daughter | — | 4 | ~1936 |
| Billy Shields | Son | — | 7 | ~1933 |
Census Appearances
1930
Monroe, Indiana
Daughter, age 9
Monroe, Indiana · implied b. ~1921 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Shields |
| Given Name | Mary |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Can Read/Write | Yes |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1940
Monroe-County, Indiana
Daughter, age 19
Monroe-County, Indiana · implied b. ~1921 — 8 household members
| Surname | Shields |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Salt Creek Twp |
| 1935 Residence (County) | Monroe |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
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 Shields across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Shields
Daughter · 1940 · age 19 · b. ~1921 · Indiana
★ You are viewing this record
Sibling
James Shields
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Martha Shields
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Patty Shields
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Evelyn Shields
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Billy Shields
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 — Monroe-County, Indiana
Open full size
1940 US Federal Census — Monroe-County, Indiana
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01079-00976)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Earl Robertson | 10 | Son | — | Indiana |
| 42 | Wilbur Mccroggins | 33 | Head | Laborer | Indiana |
| 43 | Minnie Mccroggins | 23 | Wife | — | Indiana |
| 44 | Herbert Mccroggins | 7 | Son | — | Indiana |
| 45 | William Hardy | 43 | Head | Plasterer | Indiana |
| 46 | Dollie Hardy | 37 | Wife | — | Indiana |
| 47 | William Hardy | 13 | Son | — | Indiana |
| 48 | Donald Hardy | 6 | Son | — | Indiana |
| 49 | Eliza Hensley | 68 | Mother-in-law | — | Indiana |
| 50 | Cleo Shields | 42 | Head | Farmer | Indiana |
| 51 | Millie Shields | 41 | Wife | — | Indiana |
| 52 | Mary Shields THIS PERSON | 19 | Daughter | — | Indiana |
| 53 | James Shields | 17 | Son | — | Indiana |
| 54 | Martha Shields | 14 | Daughter | — | Indiana |
| 55 | Evelyn Shields | 12 | Daughter | — | Indiana |
| 56 | Billy Shields | 7 | Son | — | Indiana |
| 57 | Patty Shields | 4 | Daughter | — | Indiana |
| 58 | Maurice Jones | 30 | Head | Clerk | Indiana |
| 59 | Grace Jones | 27 | Wife | — | Indiana |
| 60 | Evelyn Jones | 9 | Daughter | — | Indiana |
| 61 | Lester Nottingham | 33 | Head | Clerk | Indiana |
| 62 | Alta Nottingham | 32 | Wife | Teacher | Indiana |
| 63 | Grace Knight | 67 | Mother-in-law | — | Indiana |
| 64 | George Carter | 23 | Head | Furn. Factory | Indiana |
| 65 | Sylvia Carter | 20 | Wife | — | Indiana |
| 66 | Lois Carter | 1 | Daughter | — | Indiana |
| 67 | Hans Wilson | 56 | Head | Instructor | Indiana |
| 68 | Vivian Wilson | 21 | Wife | — | Indiana |
| 69 | Lloyd Gross | 31 | Head | Construction | Indiana |
| 70 | Ruth Gross | 32 | Wife | Teacher | Indiana |
| 71 | Donald Gross | 1 | Son | — | Indiana |
| 72 | Wilbur Mcronald | 24 | Head | Farm Hand | Indiana |
| 73 | Margaret Mcronald | 23 | Wife | — | Indiana |
| 74 | Samuel Chandler | 68 | Head | — | Indiana |
| 75 | Martha Chandler | 59 | Wife | — | Indiana |
| 76 | Albert Gross | 56 | Head | Fireman | Indiana |
| 77 | Myrtle Gross | 56 | Wife | — | Indiana |
| 78 | Wilbur Gross | 30 | Son | Farmer | Indiana |
| 79 | Ruth Gross | 25 | Daughter | — | Indiana |
| 80 | Jessie Pate | 40 | Head | Glassworker | Indiana |
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)