TD
Thelma Davis — 1930 US Census Record
Model Tree available1930 United States Federal Census · Mercer, Pennsylvania
Our Model Tree links this Thelma Davis across the 1910, 1920 and 1930 US Censuses in Mercer, Pennsylvania (XGBoost, ~Confirmed), with identified parents Clarence & Bessie — first a daughter (b.~1908), then head of a 5-person household.
Age 22
b. ~1908
Female
Daughter
Born: Pennsylvania
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Mercer, Pennsylvania |
| Surname | Davis |
| Given Name | Thelma |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Additional Details | |
| Occupation | Salesperson |
| Industry | Electric Store |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Salesperson |
| Township / Ward | Greenville Borough |
| Est. Birth Year | ~1908 |
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.
5 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Thelma | Age | Birth yr |
|---|---|---|---|---|
| Thelma Davis | Daughter | — | 22 | ~1908 |
| Robert Davis | Head | — | 41 | ~1889 |
| Bessie Davis | Other | — | 44 | ~1886 |
| Clifford Davis | Son | — | 15 | ~1915 |
| Raymond Davis | Son | — | 20 | ~1910 |
Census Appearances
1910
Mercer, Pennsylvania
Daughter, age 1
Mercer, Pennsylvania · implied b. ~1909 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davis |
| Given Name | Thelma |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | none |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1920
Mercer, Pennsylvania
Daughter, age 11
Mercer, Pennsylvania · implied b. ~1909 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davis |
| Given Name | Thelma |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | none |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Mercer, Pennsylvania
Daughter, age 22
Mercer, Pennsylvania · implied b. ~1908 — 5 household members
| Surname | Davis |
| Given Name | Thelma |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Salesperson |
| Industry | Electric Store |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
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 Thelma Davis across 3 US Census years (1910, 1920 and 1930) in Mercer, Pennsylvania, using XGBoost record linkage. Identified parents: father Clarence Davis (~0.92 confidence) and mother Bessie Davis (~0.92 confidence) and father Robert Davis (~0.92 confidence) and father Robert Davis (~0.92 confidence) and mother Effie Davis (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Clarence Davis
b. ~1884
Source father
● Household
· direct · ~0.92
Mother
Bessie Davis
b. ~1887
Source mother
● Household
· direct · ~0.92
Father
Robert Davis
b. ~1887
Source father
● Household
· direct · ~0.92
Father
Robert Davis
b. ~1889
Source father
● Household
· direct · ~0.92
Mother
Effie Davis
b. ~1891
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Thelma Davis
Daughter · 1930 · age 22 · b. ~1908 · Pennsylvania
★ You are viewing this record
Sibling
Clifford Davis
Sibling · 1930 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Raymond Davis
Sibling · 1930 · age 20
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 — Mercer, Pennsylvania
Open full size
1930 US Federal Census — Mercer, Pennsylvania
Page Contents
50 people indexed on this census page (ia:1930:fifteenthcensus00reel2076:1000)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | George Grand | 65 | Head | — | Pennsylvania |
| 2 | Lilla S Grand | 65 | Wife-H | — | Pennsylvania |
| 3 | Lawrence Grand | 40 | Son | Registrar-Assessor | Pennsylvania |
| 4 | Ray Hasser | 42 | Head | Merchant | Pennsylvania |
| 5 | Hellen J Hasser | 38 | Wife-H | — | Pennsylvania |
| 6 | Barbara Hasser | 8 | Daughter | — | Pennsylvania |
| 7 | George Hasser | 6 | Son | — | Pennsylvania |
| 8 | Stanley Beil | 25 | Head | Machinist | Pennsylvania |
| 9 | Allie J Beil | 27 | Wife-H | — | Pennsylvania |
| 10 | Eleanor Beil | 1 | Daughter | — | Pennsylvania |
| 11 | Ned E Peters | 44 | Head | Cashier | Pennsylvania |
| 12 | Beatrice Peters | 25 | Wife-H | — | New York |
| 13 | Richard Peters | 18 | Son | Transferer | Pennsylvania |
| 14 | Samuel P Richler | 76 | Head | — | Ohio |
| 15 | Susan Richler | 71 | Wife-H | — | Ohio |
| 16 | Edna Mceachen | 54 | Head | Laund. Appraiser | Pennsylvania |
| 17 | Clara Mceachen | 52 | Wife-H | — | Pennsylvania |
| 18 | Agusta Mceachen | 20 | Daughter | — | Pennsylvania |
| 19 | Eliza Rumangher | 72 | Head | — | Pennsylvania |
| 20 | Pearl Rumangher | 50 | Daughter | Teacher | Pennsylvania |
| 21 | Sara Rumangher | 32 | Daughter | Clerk | Pennsylvania |
| 22 | Julia Holland | 45 | Head | — | Pennsylvania |
| 23 | James Holland | 17 | Daughter | — | Pennsylvania |
| 24 | Daniel Holland | 15 | Son | — | Pennsylvania |
| 25 | Harold Rickert | 35 | Head | Laborer | Pennsylvania |
| 26 | Mary Rickert | 29 | Wife-H | — | Pennsylvania |
| 27 | Milton Rickert | 67 | Father | — | Pennsylvania |
| 28 | Lucritia Rickert | 62 | Mother | — | Pennsylvania |
| 29 | Robert Davis | 41 | Head | Barber | Pennsylvania |
| 30 | Bessie Davis | 44 | Wife-H | — | Pennsylvania |
| 31 | Thelma Davis THIS PERSON | 22 | Daughter | Salesperson | Pennsylvania |
| 32 | Raymond Davis | 20 | Son | Clerk | Pennsylvania |
| 33 | Clifford Davis | 15 | Son | — | Pennsylvania |
| 34 | James M Leonard | 33 | Head | Linotyper | Pennsylvania |
| 35 | Hazel A Leonard | 30 | Wife-H | — | Pennsylvania |
| 36 | Imogene Leonard | 8 | Daughter | — | Pennsylvania |
| 37 | James Leonard | 5 | Son | — | Pennsylvania |
| 38 | Merle Leonard | 26 | Brother | Cook | Pennsylvania |
| 39 | James Chandler | 34 | Head | Fireman | Kentucky |
| 40 | Bertha Chandler | 33 | Wife-H | — | Kentucky |
| 41 | Cordell Chandler | 12 | Daughter | — | Pennsylvania |
| 42 | Mary R Chandler | 9 | Daughter | — | Pennsylvania |
| 43 | James E Chandler | 7 | Son | — | Pennsylvania |
| 44 | Adam Turnbull | 38 | Head | Salesman | Scotland |
| 45 | Charlotte Turnbull | 39 | Wife-H | — | Pennsylvania |
| 46 | Leon L Suplee | 48 | Head | Machinist | Pennsylvania |
| 47 | Minnie Suplee | 48 | Wife-H | — | Pennsylvania |
| 48 | Henry M Mclaughlin | 44 | Head | Teacher | Ohio |
| 49 | Bertha Mclaughlin | 46 | Wife-H | — | Ohio |
| 50 | Cray Dale Mclaughlin | 12 | Nephew | — | Ohio |
Pedigree Summary
Thelma + 2 siblings
Gen 1 · 5 parents
~0.92
Max depth 4 (1900–1950 window)
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)