CT
Clarence Thompson — 1920 US Census Record
Model Tree available1920 United States Federal Census · Allegheny, Pennsylvania
Our Model Tree links this Clarence Thompson across the 1900, 1910 and 1920 US Censuses in Allegheny, Pennsylvania (XGBoost, ~Confirmed), with identified parents Phoebe & Gail — first a son (b.~1893), then head of a 6-person household.
Age 27
b. ~1893
Male
Son
Born: Pennsylvania
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | Allegheny, Pennsylvania |
| Surname | Thompson |
| Given Name | Clarence |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Additional Details | |
| Occupation | Extra Hand |
| Industry | Electric Co. W. |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Extra Hand |
| Township / Ward | Swissvale Borough |
| Est. Birth Year | ~1893 |
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.
6 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to Clarence | Age | Birth yr |
|---|---|---|---|---|
| Muriel Thompson | Daughter | — | 25 | ~1895 |
| John Thompson | Head | — | 52 | ~1868 |
| Clarence Thompson | Son | — | 27 | ~1893 |
| Lyle Thompson | Son | — | 21 | ~1899 |
| Ralph Thompson | Son | — | 15 | ~1905 |
| Gail Thompson | Spouse | — | 52 | ~1868 |
Census Appearances
1900
Allegheny, Pennsylvania
Son, age 8
Allegheny, Pennsylvania · implied b. ~1892 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Clarence |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Birth Month | Dec |
| Birth Year | 1892 |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | At School |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1910
Allegheny, Pennsylvania
Son, age 17
Allegheny, Pennsylvania · implied b. ~1893 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Clarence R |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1920
Allegheny, Pennsylvania
Son, age 27
Allegheny, Pennsylvania · implied b. ~1893 — 6 household members
| Surname | Thompson |
| Given Name | Clarence |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Extra Hand |
| Industry | Electric Co. W. |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | 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 Clarence Thompson across 3 US Census years (1900, 1910 and 1920) in Allegheny, Pennsylvania, using XGBoost record linkage. Identified parents: mother Phoebe Thompson (~0.92 confidence) and mother Gail Thompson (~0.92 confidence) and father John Thompson (~0.92 confidence) and mother Elsie Thompson (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Phoebe Thompson
b. ~1867
Source mother
● Household
· direct · ~0.92
Mother
Gail Thompson
b. ~1868
Source mother
● Household
· direct · ~0.92
Father
John Thompson
b. ~1868
Source father
● Household
· direct · ~0.92
Mother
Elsie Thompson
b. ~1869
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Clarence Thompson
Son · 1920 · age 27 · b. ~1893 · Pennsylvania
★ You are viewing this record
Sibling
Muriel Thompson
Sibling · 1920 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ralph Thompson
Sibling · 1920 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lyle Thompson
Sibling · 1920 · age 21
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
1920 US Federal Census — Allegheny, Pennsylvania
Open full size
1920 US Federal Census — Allegheny, Pennsylvania
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu1529unit:0722)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Nellie Zimmerman | 34 | Sister-in-law | — | Pennsylvania |
| 2 | James Rodello | 32 | Head | Wire Mach. | Italy |
| 3 | Carmella Rodello | 24 | Wife | — | Italy |
| 4 | Peter Rodello | 24 | Brother | Laborer | Italy |
| 5 | James Greco | 28 | Head | Huckster | Italy |
| 6 | Annie Greco | 25 | Wife | — | Italy |
| 7 | Andy Greco | 26 | Brother | Huckster | Italy |
| 8 | Bert C. Shields | 46 | Head | Roller | Pennsylvania |
| 9 | Elizabeth Shields | 41 | Wife | — | Pennsylvania |
| 10 | Ruth Shields | 11 | Daughter | — | Pennsylvania |
| 11 | Ray Shields | 9 | Son | — | Pennsylvania |
| 12 | Robert R. Grandey | 45 | Head | Conductor | Pennsylvania |
| 13 | Annie M. Grandey | 40 | Wife | — | Pennsylvania |
| 14 | Charles S. Grandey | 15 | Son | Clerk | Pennsylvania |
| 15 | Lois M. Grandey | 11 | Daughter | — | Pennsylvania |
| 16 | Alice M. Grandey | 10 | Daughter | — | Pennsylvania |
| 17 | Ralph J. Grandey | 9 | Son | — | Pennsylvania |
| 18 | Margaret Grandey | 7 | Daughter | — | Pennsylvania |
| 19 | Allen S. Grandey | 4 | Son | — | Pennsylvania |
| 20 | Pearson C. Grandey | 1 | Son | — | Pennsylvania |
| 21 | John F. Ryan | 57 | Head | Machinist | Pennsylvania |
| 22 | Mary S. Ryan | 48 | Wife | — | Pennsylvania |
| 23 | Carl Crowell | 36 | Head | Machinist Hand | Pennsylvania |
| 24 | Matilda Crowell | 35 | Wife | — | Pennsylvania |
| 25 | Rita Crowell | 12 | Daughter | — | Pennsylvania |
| 26 | Dolores Crowell | 10 | Daughter | — | Pennsylvania |
| 27 | Edward Clegg | 41 | Head | Watchman | Ohio |
| 28 | Anna E. Clegg | 41 | Wife | — | Ohio |
| 29 | Charles Clegg | 8 | Son | — | Pennsylvania |
| 30 | John W. Thompson | 52 | Head | Blacksmith | Pennsylvania |
| 31 | Gail Thompson | 52 | Wife | — | Pennsylvania |
| 32 | Clarence Thompson THIS PERSON | 27 | Son | Extra Hand | Pennsylvania |
| 33 | Muriel Thompson | 25 | Daughter | — | Pennsylvania |
| 34 | Lyle Thompson | 21 | Son | Accounting | Pennsylvania |
| 35 | Ralph Thompson | 15 | Son | Office Clerk | Pennsylvania |
| 36 | Joseph P. Byrne | 49 | Head | Machinist | Ireland |
| 37 | Catherine Byrne | 38 | Wife | — | England |
| 38 | Charles Byrne | 14 | Son | — | England |
| 39 | Mary Byrne | 13 | Daughter | — | Pennsylvania |
| 40 | Annie Byrne | 12 | Daughter | — | Pennsylvania |
| 41 | Catherine Byrne | 9 | Daughter | — | Pennsylvania |
| 42 | Alice Byrne | 8 | Daughter | — | Pennsylvania |
| 43 | Nellie Byrne | 4 | Daughter | — | Pennsylvania |
| 44 | Mary C. Holyman | 57 | Head | — | Alsace-Lorraine |
| 45 | John A. Wolfman | 46 | Head | Fitter | Pennsylvania |
| 46 | Elizabeth Wolfman | 42 | Wife | — | England |
| 47 | Adelaide Wolfman | 20 | Son | Inspector | Pennsylvania |
| 48 | Sarah Wolfman | 19 | Daughter | Stenographer | Pennsylvania |
| 49 | Agnes Mcginn | 17 | Daughter | Operator | Pennsylvania |
| 50 | Marie Wolfman | 15 | Daughter | — | Pennsylvania |
Pedigree Summary
Clarence + 3 siblings
Gen 1 · 4 parents
~0.92
Max depth 4 (1900–1950 window)
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1920 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)