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Donald Lewis — 1930 US Census Record
Model Tree available1930 United States Federal Census · Allegheny, Pennsylvania
Our Model Tree links this Donald Lewis across the 1910, 1920 and 1930 US Censuses in Allegheny, Pennsylvania (XGBoost, ~Confirmed), with identified parents Robert & Robert — first a son (b.~1908), then head of a 6-person household.
Age 22
b. ~1908
Male
Son
Born: Pennsylvania
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Allegheny, Pennsylvania |
| Surname | Lewis |
| Given Name | Donald B. ab |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Wales |
| Mother's Birthplace | Pennsylvania |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Pittsburgh City |
| 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.
6 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Donald | Age | Birth yr |
|---|---|---|---|---|
| Anna Julius | Other | — | 24 | ~1906 |
| Betty Lewis | Daughter | — | 15 | ~1915 |
| Lorenz Lewis | Son | — | 27 | ~1903 |
| Donald Lewis | Son | — | 22 | ~1908 |
| Robert Lewis | Head | — | 59 | ~1871 |
| Cordelia Lewis | Spouse | — | 60 | ~1870 |
Census Appearances
Son, age 2
Allegheny, Pennsylvania · implied b. ~1908 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lewis |
| Given Name | David B. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Wales |
| Mother's Birthplace | Pennsylvania |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1920
Allegheny, Pennsylvania
Son, age 12
Allegheny, Pennsylvania · implied b. ~1908 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lewis |
| Given Name | Donald B. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Wales |
| Mother's Birthplace | Pennsylvania |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Allegheny, Pennsylvania
Son, age 22
Allegheny, Pennsylvania · implied b. ~1908 — 6 household members
| Surname | Lewis |
| Given Name | Donald B. ab |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Wales |
| Mother's Birthplace | Pennsylvania |
| 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 Donald Lewis across 3 US Census years (1910, 1920 and 1930) in Allegheny, Pennsylvania, using XGBoost record linkage. Identified parents: father Robert Lewis (~0.92 confidence) and father Robert Lewis (~0.92 confidence) and father Thomas Lewis (~0.92 confidence) and mother Cordelia Lewis (~0.92 confidence) and mother Ruth Lewis (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Robert Lewis
b. ~1860
Source father
● Household
· direct · ~0.92
Father
Robert Lewis
b. ~1871
Source father
● Household
· direct · ~0.92
Father
Thomas Lewis
b. ~1870
Source father
● Household
· direct · ~0.92
Mother
Cordelia Lewis
b. ~1870
Source mother
● Household
· direct · ~0.92
Mother
Ruth Lewis
b. ~1884
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Donald Lewis
Son · 1930 · age 22 · b. ~1908 · Pennsylvania
★ You are viewing this record
Sibling
Betty Lewis
Sibling · 1930 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lorenz Lewis
Sibling · 1930 · age 27
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 — Allegheny, Pennsylvania
Open full size
1930 US Federal Census — Allegheny, Pennsylvania
Page Contents
32 people indexed on this census page (ia:1930:fifteenthcensus00reel1983:0103)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Fred Mcardle-Williams | 60 | Head | Physician | Pennsylvania |
| 2 | Rozella Mcardle-Williams | 51 | Wife | — | Pennsylvania |
| 3 | Willard-Ab Mcardle-Williams | 22 | Son | — | Pennsylvania |
| 4 | Jane Mcardle-Williams | 24 | Daughter | — | Pennsylvania |
| 5 | Robert J. Price | 34 | Head | Draftsman | Pennsylvania |
| 6 | Grace A. Price | 31 | Wife | — | Wales |
| 7 | Marjorie Price | 5 | Daughter | — | Pennsylvania |
| 8 | Orville V. Lerch | 45 | Head | Salesman | Pennsylvania |
| 9 | Bessie P. Lerch | 46 | Wife | — | Pennsylvania |
| 10 | Samuel Miller | 64 | Head | Salesman | Pennsylvania |
| 11 | Laura H. Miller | 61 | Wife | — | Pennsylvania |
| 12 | William J. Miller | 35 | Son | Salesman | Pennsylvania |
| 13 | Frank R. Miller | 29 | Son | — | Pennsylvania |
| 14 | June E. Miller | 20 | Daughter | Office Clerk | Pennsylvania |
| 15 | Grace S. Miller | 48 | Sister | — | Pennsylvania |
| 16 | Eleanor G. Miller | 29 | Boarder | Teacher | Ohio |
| 17 | Grace G. Mylin | 42 | Boarder | Teacher | Ohio |
| 18 | William Thorn | 57 | Head | — | Pennsylvania |
| 19 | Elizabeth Thorn | 57 | Wife | — | West Virginia |
| 20 | Elizabeth-Ab Thorn | 22 | Daughter | — | Pennsylvania |
| 21 | Robert J. Lewis | 59 | Head | Printer | Wales |
| 22 | Cordelia Lewis | 60 | Wife | — | Pennsylvania |
| 23 | Lorenz L. Lewis | 27 | Son | Appraiser | Pennsylvania |
| 24 | Donald B. Ab Lewis THIS PERSON | 22 | Son | — | Pennsylvania |
| 25 | Betty C. Lewis | 15 | Daughter | — | Pennsylvania |
| 26 | Anna Julius | 24 | Servant | Servant | Pennsylvania |
| 27 | Daw-Hee-Yee | 28 | Head | Laundryman | China |
| 28 | Soon-Yee | 25 | Boarder | Helper | China |
| 29 | Yee-Dock-Bow | 12 | Boarder | — | China |
| 30 | Kirby E. Adams | 51 | Head | — | Virginia |
| 31 | Addie E. Adams | 49 | Wife | — | Virginia |
| 32 | Ethel F. Adams | 13 | Son | — | Pennsylvania |
Related Census Records
Pedigree Summary
Donald + 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)