BT
Betty Thomas — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Marion, Illinois
Our Model Tree links this Betty Thomas across the 1930 and 1940 US Censuses in Marion, Illinois (XGBoost, ~Confirmed) — first a daughter (b.~1921), then head of a 9-person household.
Age 9
b. ~1921
Female
Daughter
Born: Illinois
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Marion, Illinois |
| Surname | Thomas |
| Given Name | Betty |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Sandoval Village |
| 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.
9 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Betty | Age | Birth yr |
|---|---|---|---|---|
| Joseph Thomas | Son | — | 18 | ~1912 |
| Mary Thomas | Daughter | — | 16 | ~1914 |
| Gertrude Thomas | Daughter | — | 13 | ~1917 |
| Bobby Thomas | Son | — | 5 | ~1925 |
| Joe Thomas | Head | — | 50 | ~1880 |
| Raymond Thomas | Son | — | 12 | ~1918 |
| Betty Thomas | Daughter | — | 9 | ~1921 |
| Agnes Thomas | Spouse | — | 48 | ~1882 |
| Jacqueline Thomas | Daughter | — | 7 | ~1923 |
Census Appearances
1930
Marion, Illinois
Daughter, age 9
Marion, Illinois · implied b. ~1921 — 9 household members
| Surname | Thomas |
| Given Name | Betty |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 9 |
| 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
Marion-County, Illinois
Daughter, age 19
Marion-County, Illinois · implied b. ~1921 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Bettie |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Sandoval Village |
| 1935 Residence (County) | Marion |
| Occupation | Helper |
| Industry | Tavern |
| Class of Worker | PW |
| Hours Worked | 20 |
| Income (1939) | 75 |
| 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 Betty Thomas across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Betty Thomas
Daughter · 1930 · age 9 · b. ~1921 · Illinois
★ You are viewing this record
Sibling
Mary Thomas
Sibling · 1930 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Thomas
Sibling · 1930 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Gertrude Thomas
Sibling · 1930 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jacqueline Thomas
Sibling · 1930 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Bobby Thomas
Sibling · 1930 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Raymond Thomas
Sibling · 1930 · age 12
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
1930 US Federal Census — Marion, Illinois
Open full size
1930 US Federal Census — Marion, Illinois
Page Contents
50 people indexed on this census page (ia:1930:illinoiscensus00reel543:1013)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Peter E Thomas | 26 | Head | Meat Cutter | Illinois |
| 2 | Catherine L Thomas | 22 | Wife | — | Missouri |
| 3 | William J Thomas | 4 | Son | — | Illinois |
| 4 | Agnes M Thomas | 2 | Daughter | — | Illinois |
| 5 | Margret P Thomas | 0 | Daughter | — | Illinois |
| 6 | Frank E Reid | 32 | Head | Manager | Illinois |
| 7 | Anna M Reid | 26 | Wife | — | Illinois |
| 8 | Frank Junior Reid | 7 | Son | — | Illinois |
| 9 | Emma Schotter | 67 | Head | — | Illinois |
| 10 | T. C. Horman | 37 | Head | Driller | Pennsylvania |
| 11 | Flora S Horman | 31 | Wife | Clerk | Illinois |
| 12 | Harry H Bellamy | 39 | Head | Cashier | Illinois |
| 13 | Stella M Bellamy | 38 | Wife | — | Missouri |
| 14 | Ella Bellamy | 76 | Mother | — | Virginia |
| 15 | Thomas O Lewis | 74 | Head | — | Wales |
| 16 | Harriet J Lewis | 35 | Daughter | — | Indiana |
| 17 | Richard J Lewis | 10 | Son | — | Illinois |
| 18 | Charles F Patterson | 71 | Head | Lawyer | Illinois |
| 19 | Mae E Patterson | 57 | Wife | — | Illinois |
| 20 | Lake L Harris | 29 | Head | Foreman | Illinois |
| 21 | Juanita Harris | 28 | Wife | Bookkeeper | Illinois |
| 22 | A. C. Oelmke | 35 | Head | Asst Manager | Illinois |
| 23 | Helen F Oelmke | 26 | Wife | — | Illinois |
| 24 | Robert L Oelmke | 3 | Son | — | Illinois |
| 25 | Ed Stein | 63 | Head | Laborer | Illinois |
| 26 | Elizabeth Stein | 58 | Wife | — | Missouri |
| 27 | Julius H Conrad | 37 | Head | Owner | Illinois |
| 28 | Marie Conrad | 34 | Wife | — | Illinois |
| 29 | Harold J Conrad | 6 | Son | — | Illinois |
| 30 | Ora B Mason | 45 | Head | Barber | Illinois |
| 31 | Sarah Mason | 80 | Mother | — | Ohio |
| 32 | Winifred Mason | 13 | Daughter | — | Illinois |
| 33 | Joe A Thomas | 50 | Head | Meat Cutter | Illinois |
| 34 | Agnes Thomas | 48 | Wife | — | Illinois |
| 35 | Joseph M Thomas | 18 | Son | — | Illinois |
| 36 | Mary F Thomas | 16 | Daughter | — | Illinois |
| 37 | Gertrude Thomas | 13 | Daughter | — | Illinois |
| 38 | Raymond Thomas | 12 | Son | — | Illinois |
| 39 | Betty Thomas THIS PERSON | 9 | Daughter | — | Illinois |
| 40 | Jacqueline Thomas | 7 | Daughter | — | Illinois |
| 41 | Bobby Thomas | 5 | Son | — | Illinois |
| 42 | Ruth P Sydel | 55 | Head | — | West Virginia |
| 43 | Ray S Welman | 41 | Boarder | Proprietor | Missouri |
| 44 | Placido Manfreci | 46 | Head | Miner | Italy |
| 45 | Clara C Manfreci | 40 | Wife | — | Illinois |
| 46 | Warren P Manfreci | 15 | Son | — | Illinois |
| 47 | Leo C Manfreci | 13 | Son | — | Illinois |
| 48 | Victor Manfreci | 11 | Son | — | Illinois |
| 49 | Eugene Manfreci | 8 | Son | — | Illinois |
| 50 | Rosaline Manfreci | 6 | Daughter | — | Illinois |
Related Census Records
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)