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David Lewis — 1930 US Census Record
Model Tree available1930 United States Federal Census · Mahoning, Ohio
Our Model Tree links this David Lewis across the 1900, 1910, 1920, 1930 and 1940 US Censuses in Mahoning, Ohio (XGBoost, ~Confirmed), with identified parents Thomas & William — first a head (b.~1878), then head of a 4-person household.
Age 52
b. ~1878
Male
Head
Born: Wales
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Mahoning, Ohio |
| Surname | Lewis |
| Given Name | David J |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 52 |
| Marital Status | Married |
| Birthplace | Wales |
| Naturalization Status | Naturalized |
| Year of Immigration | 1878 |
| Age at First Marriage | 26 |
| Father's Birthplace | Wales |
| Mother's Birthplace | Wales |
| Additional Details | |
| Occupation | Gager |
| Industry | Steel Mill |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | Welsh |
| Home Owned/Rented | O |
| Home Value / Rent | 7000 |
| Radio Set | R |
| Birth Country | Wales |
| Birthplace (normalized) | wales |
| Occupation | Gager |
| Township / Ward | Youngstown City |
| Est. Birth Year | ~1878 |
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.
4 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to David | Age | Birth yr |
|---|---|---|---|---|
| Priscilla Lewis | Daughter | — | 19 | ~1911 |
| Margaret Lewis | Daughter | — | 13 | ~1917 |
| David Lewis | Head | — | 52 | ~1878 |
| Catherine Lewis | Spouse | — | 47 | ~1883 |
Census Appearances
1900
Trumbull, Ohio
Son, age 22
Trumbull, Ohio · implied b. ~1878 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lewis |
| Given Name | David |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Wales |
| Birth Month | Dec |
| Birth Year | 1878 |
| Father's Birthplace | Wales |
| Mother's Birthplace | Wales |
| Occupation | Lab. in Rolling Mill |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth Country | Wales |
| Birthplace (normalized) | wales |
1910
Mahoning, Ohio
Son, age 30
Mahoning, Ohio · implied b. ~1880 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lewis |
| Given Name | David J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Single |
| Birthplace | Wales |
| Year of Immigration | 1880 |
| Naturalization Status | Alien |
| Father's Birthplace | Wales |
| Mother's Birthplace | Wales |
| Occupation | Inspector |
| Industry | Y. & S. T. Co. |
| Birth Country | Wales |
| Birthplace (normalized) | wales |
1920
Mahoning, Ohio
Head, age 41
Mahoning, Ohio · implied b. ~1879 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lewis |
| Given Name | David J. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 41 |
| Marital Status | Married |
| Birthplace | Wales |
| Year of Immigration | 1879 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Wales |
| Mother's Birthplace | Wales |
| Occupation | Inspector |
| Industry | Steel Mill |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Welsh |
| Home Owned/Rented | O |
| Home Free/Mortgaged | F |
| Birth Country | Wales |
| Year of Naturalization | 1900 |
| Birthplace (normalized) | wales |
1930
Mahoning, Ohio
Head, age 52
Mahoning, Ohio · implied b. ~1878 — 4 household members
| Surname | Lewis |
| Given Name | David J |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 52 |
| Marital Status | Married |
| Birthplace | Wales |
| Naturalization Status | Naturalized |
| Year of Immigration | 1878 |
| Age at First Marriage | 26 |
| Father's Birthplace | Wales |
| Mother's Birthplace | Wales |
| Occupation | Gager |
| Industry | Steel Mill |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | Welsh |
| Home Owned/Rented | O |
| Home Value / Rent | 7000 |
| Radio Set | R |
| Birth Country | Wales |
| Birthplace (normalized) | wales |
1940
Mahoning-County, Ohio
Other, age 62
Mahoning-County, Ohio · implied b. ~1878 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lewis |
| Given Name | David J. |
| Relationship to Head | Father |
| Sex | M |
| Color / Race | White |
| Age | 62 |
| Marital Status | Married |
| Birthplace | Wales |
| 1935 Residence (City) | Youngstown City |
| 1935 Residence (County) | Mahoning |
| Naturalization Status | Naturalized |
| Occupation | Inspector |
| Industry | Steel Mill |
| Class of Worker | PW |
| Hours Worked | 24 |
| Income (1939) | 1357 |
| Highest Grade | No 5 |
| 1935 Residence | Same house |
| Birth Country | Wales |
| Birthplace (normalized) | wales |
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 David Lewis across 5 US Census years (1900, 1910, 1920, 1930 and 1940) in 3 locations, using XGBoost record linkage. Identified parents: father Thomas Lewis (~0.92 confidence) and father William Lewis (~0.92 confidence) and mother Alice Lewis (~0.92 confidence) and mother Margaret Lewis (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Thomas Lewis
b. ~1840
Source father
● Household
· direct · ~0.92
Father
William Lewis
b. ~1849
Source father
● Household
· direct · ~0.92
Mother
Alice Lewis
b. ~1851
Source mother
● Household
· direct · ~0.92
Mother
Margaret Lewis
b. ~1855
Source mother
● Household
· direct · ~0.92
This person
Anchor record
David Lewis
Head · 1930 · age 52 · b. ~1878 · Ohio
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Mahoning, Ohio
Open full size
1930 US Federal Census — Mahoning, Ohio
Page Contents
49 people indexed on this census page (ia:1930:ohiocensus00reel1846:0705)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Frank G Moore | 40 | Head | Salesman | New York |
| 2 | Florence L Moore | 41 | Wife | None | New York |
| 3 | Dudley J Moore | 44 | Head | Manager Dept | New York |
| 4 | Ethel Moore | 47 | Wife | None | New York |
| 5 | Irene G Skinner | 56 | Head | None | Canada English |
| 6 | Miriam Gagan | 70 | Aunt | None | Canada English |
| 7 | Irene Ziegler | 24 | Head | None | Canada English |
| 8 | Mildred S Ziegler | 3 | Daughter | — | Illinois |
| 9 | Hal G Oberst | 46 | Head | Librarian | Wisconsin |
| 10 | Mabel M Oberst | 46 | Wife | Engraver | Minnesota |
| 11 | Betty J Oberst | 17 | Daughter | None | Oregon |
| 13 | Harry H Orr | 45 | Head | Bookkeeper | Ohio |
| 14 | Effie A Orr | 42 | Wife | None | Ohio |
| 15 | Jane L Orr | 13 | Daughter | None | Ohio |
| 16 | Gertrude M Orr | 10 | Daughter | None | Ohio |
| 17 | Joseph P Melvin | 42 | Lodger | Inspector | Pennsylvania |
| 18 | Chris Maradun | 34 | Head | Salesman | Pennsylvania |
| 19 | Beechie Maradun | 32 | Wife | None | Pennsylvania |
| 20 | Ladonna Maradun | 11 | Daughter | None | Pennsylvania |
| 21 | Phyllis Maradun | 8 | Daughter | None | Pennsylvania |
| 22 | Harry Maradun | 6 | Son | None | Pennsylvania |
| 23 | Elmer Krause | 48 | Head | Bookkeeper | Pennsylvania |
| 24 | Grace Krause | 49 | Wife | None | Pennsylvania |
| 25 | Dale Krause | 20 | Son | None | Pennsylvania |
| 26 | Olive Krause | 15 | Daughter | None | Ohio |
| 27 | David J Lewis THIS PERSON | 52 | Head | Gager | Wales |
| 28 | Catherine Lewis | 47 | Wife | None | Ohio |
| 29 | Priscilla Lewis | 19 | Daughter | None | Ohio |
| 30 | Margaret Lewis | 13 | Daughter | None | Ohio |
| 31 | Louis H Ross | 52 | Head | Shearman | Ohio |
| 32 | Della Ross | 50 | Wife | None | Ohio |
| 33 | Earl Ross | 20 | Son | Regulator | Ohio |
| 34 | Robert Brownlie | 45 | Head | Machinist | Scotland |
| 35 | George Brownlie | 10 | Son | None | Ohio |
| 36 | Richard Brownlie | 8 | Son | None | Ohio |
| 37 | Betty J Brownlie | 3 | Daughter | — | Ohio |
| 38 | Frank Duval | 26 | Head | Salesman | West Virginia |
| 39 | Pate Duval | 23 | Wife | None | West Virginia |
| 40 | Alexander Farmer | 49 | Head | Chief Clerk | Scotland |
| 41 | Esther Farmer | 36 | Wife | None | Pennsylvania |
| 42 | Catherine Duddy | 24 | Boarder | Operator | Ohio |
| 43 | Mary Prattis | 66 | Head | None | Pennsylvania |
| 44 | Ralph Prattis | 35 | Son | Bookkeeper | Ohio |
| 45 | Althe Prattis | 33 | Daughter in law | None | Tennessee |
| 46 | Walter Prattis | 5 | Grandson | None | Ohio |
| 47 | Howard Dangerfield | 29 | Head | Carpenter | Ohio |
| 48 | Edith Dangerfield | 24 | Wife | None | New York |
| 49 | Benjamin Dangerfield | 65 | Father | Laborer | England |
| 50 | Matthew Stansbury | 37 | Head | Carpenter | Pennsylvania |
Pedigree Summary
David
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 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)