MS
Mary Shea — 1930 US Census Record
Linked across censuses1930 United States Federal Census · St Clair, Illinois
Our Model Tree links this Mary Shea across the 1920, 1930 and 1940 US Censuses in St Clair, Illinois (XGBoost, ~Confirmed) — first a head (b.~1868), then head of a 3-person household.
Age 62
b. ~1868
Female
Head
Born: Missouri
Widowed
1930 Census Record Details
| Census Year | 1930 |
| Location | St Clair, Illinois |
| Surname | Shea |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 62 |
| Marital Status | Widowed |
| Birthplace | Missouri |
| Age at First Marriage | 23 |
| Father's Birthplace | Northern Ireland |
| Mother's Birthplace | Northern Ireland |
| Additional Details | |
| Occupation | none |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 8000 |
| Radio Set | R |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
| Township / Ward | East St Louis City Part Of |
| Est. Birth Year | ~1868 |
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 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Shea | Head | — | 62 | ~1868 |
| Mary Shea | Other | — | 15 | ~1915 |
| Thos Shea | Son | — | 32 | ~1898 |
Census Appearances
1920
St Clair, …
Head, age 50
St Clair, Illinois · implied b. ~1870 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Shea |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 50 |
| Marital Status | Widowed |
| Birthplace | Missouri |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Clerk |
| Industry | Wholesale |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Home Owned/Rented | O |
| Home Free/Mortgaged | M |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
1930
St Clair, …
Head, age 62
St Clair, Illinois · implied b. ~1868 — 3 household members
| Surname | Shea |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 62 |
| Marital Status | Widowed |
| Birthplace | Missouri |
| Age at First Marriage | 23 |
| Father's Birthplace | Northern Ireland |
| Mother's Birthplace | Northern Ireland |
| Occupation | none |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 8000 |
| Radio Set | R |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
1940
St.-Clair-County, Illinois
Other, age 72
St.-Clair-County, Illinois · implied b. ~1868 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Shea |
| Given Name | Mary |
| Relationship to Head | Sister |
| Sex | F |
| Color / Race | White |
| Age | 72 |
| Marital Status | Single |
| Birthplace | Missouri |
| 1935 Residence (City) | East St. Louis |
| 1935 Residence (County) | St. Clair |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| 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 Mary Shea across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Shea
Head · 1930 · age 62 · b. ~1868 · Illinois
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — St Clair, Illinois
Open full size
1930 US Federal Census — St Clair, Illinois
Page Contents
50 people indexed on this census page (ia:1930:illinoiscensus00reel557:0125)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Edna Shook | 23 | Wife-H | None | Illinois |
| 2 | Marie Shook | 5 | daughter | None | Illinois |
| 3 | May | 52 | Head | Janitor | Ohio |
| 4 | Marie E May | 50 | Wife-H | None | Missouri |
| 5 | C Willard Son | 13 | — | None | Missouri |
| 6 | Thos M May | 27 | son | Trucking | Missouri |
| 7 | Gertie May | 30 | daughter-in-law | Clerk | Missouri |
| 8 | Timothy Deneen | 56 | Head | Janitor | Irish Free State |
| 9 | Hannah Deneen | 57 | Wife-H | None | Irish Free State |
| 10 | Margaret Deneen | 29 | daughter | Saleslady | Illinois |
| 11 | Mary Deneen | 27 | daughter | Stenographer | Illinois |
| 12 | Mary Shea THIS PERSON | 62 | Head | None | Missouri |
| 13 | Thos J Shea | 32 | son | Clerk | Illinois |
| 14 | Mary J Shea | 15 | granddaughter | None | Illinois |
| 15 | Miller Mast | 48 | Head | Cook | Minnesota |
| 16 | Walter Mast | 15 | son | Printer | Iowa |
| 17 | Lois E Mast | 26 | daughter | Printer | North Dakota |
| 18 | Lois J Mast | 26 | daughter-in-law | None | Missouri |
| 19 | Betty June Mast | 1 | granddaughter | None | Illinois |
| 20 | Charles Hoppe | 23 | Roomer | Clerk | Missouri |
| 21 | Jessie Hoppe | 23 | Roomer | None | Missouri |
| 22 | Minnie Huxley | 33 | Head | None | Illinois |
| 23 | David A Huxley | 13 | son | None | Illinois |
| 24 | Evelyn Huxley | 11 | daughter | None | Illinois |
| 25 | Kings Smith | 26 | Roomer | Chauffeur | Indiana |
| 26 | Vivian Smith | 18 | Roomer | None | Indiana |
| 27 | Steve Nessel | 44 | Roomer | Miner | Pennsylvania |
| 28 | Nettie Ackens | 24 | Roomer | Meat Packer | Virginia |
| 29 | Wm Holdener | 34 | Head | Yard Man | Illinois |
| 30 | Anna Holdener | 33 | Wife-H | None | Scotland |
| 31 | David Beveridge | 68 | father-in-law | None | Scotland |
| 32 | Edna Real | 31 | Head | Engineer | Illinois |
| 33 | Evelyn Real | 21 | daughter | None | Illinois |
| 34 | Paskal Hanley | 50 | sister-in-law | Agent | Illinois |
| 35 | Gladys Hanley | 12 | niece | None | Illinois |
| 36 | Harvey R Smith | 48 | Head | Foreman | Illinois |
| 37 | Leona Smith | 48 | Wife-H | None | Illinois |
| 38 | Harvey R Jr Smith | 27 | son | Acetylene Welder | Illinois |
| 39 | Margie Simmons | 22 | daughter | None | Illinois |
| 40 | J. W. Engle | 61 | Roomer | Housekeeper | Illinois |
| 41 | Mark K Dolan | 56 | Head | Blacksmith | Indiana |
| 42 | Josephine Dolan | 52 | Wife-H | Watchman | Illinois |
| 43 | Robt K Norton | 19 | nephew | None | Illinois |
| 44 | John J Sullivan | 25 | Head | Bookkeeper | Missouri |
| 45 | Mary Sullivan | 24 | Wife-H | Trained Nurse | Illinois |
| 46 | James W Colgan | 48 | Head | Attendant | Illinois |
| 47 | Hazel M Colgan | 40 | Wife-H | Clerk | Indiana |
| 48 | Paul M Colgan | 17 | son | Live Stock Buyer | Illinois |
| 49 | James W Jr Colgan | 10 | son | None | Illinois |
| 50 | — | None | — | — | — |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)