RP
Robert Pierce — 1930 US Census Record
Linked across censuses1930 United States Federal Census · St Clair, Illinois
Our Model Tree links this Robert Pierce across the 1920 and 1930 US Censuses in St Clair, Illinois (XGBoost, ~Confirmed) — first a head (b.~1888), then head of a 7-person household.
Age 42
b. ~1888
Male
Head
Born: Missouri
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | St Clair, Illinois |
| Surname | Pierce |
| Given Name | Robert |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 42 |
| Marital Status | Married |
| Birthplace | Missouri |
| Age at First Marriage | 25 |
| Father's Birthplace | U.S. |
| Mother's Birthplace | U.S. |
| Additional Details | |
| Occupation | Laborer |
| Industry | Water Co. |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 15 |
| Radio Set | R |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
| Occupation | Laborer |
| Township / Ward | Belleville City |
| Est. Birth Year | ~1888 |
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.
7 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Robert Pierce | Head | — | 42 | ~1888 |
| Eva Pierce | Daughter | — | 9 | ~1921 |
| Marie Pierce | Daughter | — | 12 | ~1918 |
| Lena Pierce | Spouse | — | 39 | ~1891 |
| William Pierce | Son | — | 7 | ~1923 |
| Bertha Pierce | Daughter | — | 2 | ~1928 |
| Earl Pierce | Son | — | 5 | ~1925 |
Census Appearances
1920
St Clair, …
Head, age 32
St Clair, Illinois · implied b. ~1888 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Pierce |
| Given Name | Robert |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 32 |
| Marital Status | Married |
| Birthplace | Missouri |
| Father's Birthplace | unknown |
| Mother's Birthplace | unknown |
| Occupation | miner |
| Industry | coal mine |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | R |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
1930
St Clair, …
Head, age 42
St Clair, Illinois · implied b. ~1888 — 7 household members
| Surname | Pierce |
| Given Name | Robert |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 42 |
| Marital Status | Married |
| Birthplace | Missouri |
| Age at First Marriage | 25 |
| Father's Birthplace | U.S. |
| Mother's Birthplace | U.S. |
| Occupation | Laborer |
| Industry | Water Co. |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 15 |
| Radio Set | R |
| 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 Robert Pierce across 2 US Census years (1920 and 1930) in St Clair, Illinois, using XGBoost record linkage.
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This person
Anchor record
Robert Pierce
Head · 1930 · age 42 · b. ~1888 · 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:illinoiscensus00reel555:0042)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Charles Butzinger | 12 | Head | — | Illinois |
| 52 | Velma Butzinger | 9 | Daughter | — | Illinois |
| 53 | Raymond Butzinger | 3 | Son | — | Illinois |
| 54 | Bernadette Butzinger | 1 | Daughter | — | Illinois |
| 55 | Robert Pierce THIS PERSON | 42 | Head | Laborer | Missouri |
| 56 | Lena Pierce | 39 | Wife | — | Illinois |
| 57 | Marie Pierce | 12 | Daughter | — | Missouri |
| 58 | Eva Pierce | 9 | Daughter | — | Illinois |
| 59 | William Pierce | 7 | Son | — | Oklahoma |
| 60 | Earl Pierce | 5 | Son | — | Illinois |
| 61 | Bertha Pierce | 2 | Daughter | — | Illinois |
| 62 | Emma Roderhurst | 53 | Head | — | Illinois |
| 63 | Arthur Roderhurst | 27 | Son | Truck Driver | Illinois |
| 64 | Edna Roderhurst | 20 | Daughter | Shoe Worker | Illinois |
| 65 | William Roderhurst | 16 | Son | — | Illinois |
| 66 | Bessie Moore | 37 | Sister | — | Illinois |
| 67 | William Chandler | 40 | — | Molder | Georgia |
| 68 | Mattie Chandler | 26 | Wife | — | Tennessee |
| 69 | Sidney Chandler | 19 | Son | Polisher | Georgia |
| 70 | Jessie Chandler | 16 | Daughter | — | Georgia |
| 71 | Joseph Chandler | 6 | Son | — | Illinois |
| 72 | Thelma Chandler | 4 | Daughter | — | Tennessee |
| 73 | Billie Jane Chandler | 3 | Daughter | — | Illinois |
| 74 | Lotha Chandler | 2 | Son | — | Illinois |
| 75 | Paul Schingel | 40 | Head | Truck Driver | Missouri |
| 76 | Bertha Schingel | 41 | Wife | — | Illinois |
| 77 | Lucille Schingel | 15 | Daughter | — | Illinois |
| 78 | Dorothy Schingel | 13 | Daughter | — | Illinois |
| 79 | Leroy Schingel | 12 | Son | — | Illinois |
| 80 | Paul Schingel | 8 | Son | — | Illinois |
| 81 | Charles Heidorn | 57 | — | Miner | Illinois |
| 82 | Elizabeth Heidorn | 57 | Wife | — | Illinois |
| 83 | Theodore Heidorn | 20 | Son | Miner | Illinois |
| 84 | Mary Tickinger | 57 | Head | — | Illinois |
| 85 | George Tickinger | 34 | Son | Shoe Worker | Illinois |
| 86 | Paul Tickinger | 22 | Son | Molder Appr. | Illinois |
| 87 | Fred Tiger | 28 | Son-in-law | Shoe Worker | Illinois |
| 88 | Katherine Tiger | 27 | Daughter | — | Illinois |
| 89 | Ethel Tiger | 10 | Gr. Daughter | — | Illinois |
| 90 | Alfred J. Petersen | 39 | Head | Carpenter | Iowa |
| 91 | Elizabeth Petersen | 41 | Wife | — | Illinois |
| 92 | Norma Petersen | 6 | Daughter | — | Nebraska |
| 93 | Wallace Richter | 10 | Step-son | — | Nebraska |
| 94 | Ed Rider | 49 | Head | Miner | Illinois |
| 95 | Della Rider | 43 | Wife | — | Illinois |
| 96 | Laura Bell Rider | 17 | Daughter | Examiner | Illinois |
| 97 | George Wright | 31 | Head | Laborer | Illinois |
| 98 | Edna Wright | 25 | Wife | Shoe Worker | Illinois |
| 99 | Harold Wright | 6 | Son | — | Illinois |
| 100 | Charlotte Wright | 5 | Daughter | — | Illinois |
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)