JG
James Griffith — 1930 US Census Record
Model Tree available1930 United States Federal Census · Mahoning, Ohio
Our Model Tree links this James Griffith across the 1920, 1930 and 1940 US Censuses in Mahoning, Ohio (XGBoost, ~Confirmed), with identified parents Mary & Mary — first a son (b.~1878), then head of a 3-person household.
Age 52
b. ~1878
Male
Son
Born: Wales
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Mahoning, Ohio |
| Surname | Griffith |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 52 |
| Marital Status | Single |
| Birthplace | Wales |
| Naturalization Status | Naturalized |
| Year of Immigration | 1887 |
| Father's Birthplace | South Wales |
| Mother's Birthplace | South Wales |
| Additional Details | |
| Occupation | Meter Reader |
| Industry | City Water Works |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Birth Country | Wales |
| Birthplace (normalized) | wales |
| Occupation | Meter Reader |
| 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.
3 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| James Griffith | Son | — | 52 | ~1878 |
| Mary Evans | Head | — | 76 | ~1854 |
| Thomas Griffith | Son | — | 47 | ~1883 |
Census Appearances
1920
Mahoning, Ohio
Son, age 40
Mahoning, Ohio · implied b. ~1880 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Griffiths |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Single |
| Birthplace | Wales |
| Year of Immigration | 1887 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Wales |
| Mother's Birthplace | Wales |
| Occupation | Roll Hand |
| Industry | Steel Mill |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Welsh |
| Birth Country | Wales |
| Year of Naturalization | 1897 |
| Birthplace (normalized) | wales |
1930
Mahoning, Ohio
Son, age 52
Mahoning, Ohio · implied b. ~1878 — 3 household members
| Surname | Griffith |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 52 |
| Marital Status | Single |
| Birthplace | Wales |
| Naturalization Status | Naturalized |
| Year of Immigration | 1887 |
| Father's Birthplace | South Wales |
| Mother's Birthplace | South Wales |
| Occupation | Meter Reader |
| Industry | City Water Works |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Birth Country | Wales |
| Birthplace (normalized) | wales |
1940
Mahoning-County, Ohio
Head, age 62
Mahoning-County, Ohio · implied b. ~1878 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Griffiths |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 62 |
| Marital Status | Married |
| Birthplace | Wales |
| 1935 Residence (City) | Youngstown |
| 1935 Residence (County) | Mahoning |
| Naturalization Status | Naturalized |
| Occupation | Meter Reader |
| Industry | City Water Works |
| Class of Worker | GW |
| Hours Worked | 44 |
| Income (1939) | 1800 |
| 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 James Griffith across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Mary Evans (~0.92 confidence) and mother Mary Evans (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Mary Evans
b. ~1854
Source mother
● Household
· direct · ~0.92
Mother
Mary Evans
b. ~1855
Source mother
● Household
· direct · ~0.92
This person
Anchor record
James Griffith
Son · 1930 · age 52 · b. ~1878 · Ohio
★ You are viewing this record
Sibling
Thomas Griffith
Sibling · 1930 · age 47
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 — Mahoning, Ohio
Open full size
1930 US Federal Census — Mahoning, Ohio
Page Contents
50 people indexed on this census page (ia:1930:ohiocensus00reel1843:0015)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Lebrada Labroda | 20 | Daughter | None | Ohio |
| 52 | Tony Labroda | 18 | Son | Clerk | Ohio |
| 53 | Steve Labroda | 12 | Son | None | Ohio |
| 54 | Michael Labroda | 10 | Son | None | Ohio |
| 55 | Clarence Garwood | 44 | Head | Clerk | Pennsylvania |
| 56 | Jane Garwood | 38 | Wife | None | Pennsylvania |
| 57 | John Garwood | 14 | Son | None | Ohio |
| 58 | Martha Garwood | 10 | Daughter | None | Ohio |
| 59 | Richard Garwood | 7 | Son | None | Ohio |
| 60 | Patsy Citero | 26 | Head | Truck Driver | New York |
| 61 | Mary Citero | 21 | Wife | None | Ohio |
| 62 | Thomas Hodson | 50 | Head | Kitchen Man | England |
| 63 | Lucy Hodson | 48 | Wife | None | Ohio |
| 64 | Ralph Donanodo | 32 | Head | Laborer | Italy |
| 65 | Louise Donanodo | 26 | Wife | None | Ohio |
| 66 | Angelo Donanodo | 10 | Son | None | West Virginia |
| 67 | Albert Donanodo | 9 | Son | None | West Virginia |
| 68 | Andrew Donanodo | 7 | Son | None | West Virginia |
| 69 | Fred Donanodo | 3 | Son | None | Ohio |
| 70 | Mary Evans | 76 | Head | None | South Wales |
| 71 | James Griffith THIS PERSON | 52 | Son | Meter Reader | Wales |
| 72 | Thomas Griffith | 47 | Son | Moulder | Wales |
| 73 | Mary Pandas | 35 | Head | Servant | Austria Hungary |
| 74 | Margaret Pandas | 13 | Daughter | None | Ohio |
| 75 | Joseph Pandas | 12 | Son | None | Ohio |
| 76 | Mary Jane Pandas | 6 | Daughter | None | Ohio |
| 77 | Charles Siegel | 45 | Head | Nickelier | Rumania |
| 78 | Sadie Siegel | 43 | Wife | None | Poland |
| 79 | Dorothy Siegel | 12 | Daughter | None | Ohio |
| 80 | Ruth Siegel | 11 | Daughter | None | Ohio |
| 81 | Bernice Siegel | 8 | Daughter | None | Ohio |
| 82 | Jack Siegel | 5 | Son | None | Ohio |
| 83 | Sarah Siegel | 3 | Daughter | None | Ohio |
| 84 | Jacob Kaufman | 73 | Head | None | Russia |
| 85 | Hannah Kaufman | 70 | Wife | None | Russia |
| 86 | Albert Smerke | 39 | Head | Butcher | Czechoslovakia |
| 87 | Mary Smerke | 29 | Wife | None | Czechoslovakia |
| 88 | Mary Smerke | 12 | Daughter | None | Ohio |
| 89 | Anna Smerke | 8 | Daughter | None | Ohio |
| 90 | Josephine Smerke | 5 | Daughter | None | Ohio |
| 91 | Louis Seguilla | 60 | Head | Laborer | Italy |
| 92 | Lucy Seguilla | 55 | Wife | None | Italy |
| 93 | Elsie Seguilla | 14 | Daughter | None | Italy |
| 94 | Anthony | 34 | Head | Salesman | Italy |
| 95 | Irene | 19 | Wife | None | Italy |
| 96 | Lewis | 1 | Son | None | Ohio |
| 97 | Pete | 24 | Head | Laborer | Italy |
| 98 | Anna | 20 | Wife | None | Ohio |
| 99 | Lucy | 1 | Daughter | None | Ohio |
| 100 | Joseph Consolatina | 37 | Head | Laborer | Italy |
Pedigree Summary
James + 1 sibling
Gen 1 · 2 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)