RK
Ralph King — 1930 US Census Record
Model Tree available1930 United States Federal Census · Montgomery, Ohio
Our Model Tree links this Ralph King across the 1910, 1920 and 1930 US Censuses in Montgomery, Ohio (XGBoost, ~Confirmed), with identified parents John & John — first a son (b.~1906), then head of a 5-person household.
Age 24
b. ~1906
Male
Son
Born: Ohio
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Montgomery, Ohio |
| Surname | King |
| Given Name | Ralph J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Additional Details | |
| Occupation | Accountant |
| Industry | Scales |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Occupation | Accountant |
| Township / Ward | Dayton City |
| Est. Birth Year | ~1906 |
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 Ralph | Age | Birth yr |
|---|---|---|---|---|
| Sarah King | Other | — | 55 | ~1875 |
| John King | Head | — | 55 | ~1875 |
| Ralph King | Son | — | 24 | ~1906 |
| Clarence King | Son | — | 27 | ~1903 |
| Allie King | Daughter | — | 22 | ~1908 |
Census Appearances
1910
Montgomery, Ohio
Son, age 4
Montgomery, Ohio · implied b. ~1906 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | King |
| Given Name | Ralph |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1920
Montgomery, Ohio
Son, age 14
Montgomery, Ohio · implied b. ~1906 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | King |
| Given Name | Ralph J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1930
Montgomery, Ohio
Son, age 24
Montgomery, Ohio · implied b. ~1906 — 5 household members
| Surname | King |
| Given Name | Ralph J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Occupation | Accountant |
| Industry | Scales |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
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 Ralph King across 3 US Census years (1910, 1920 and 1930) in Montgomery, Ohio, using XGBoost record linkage. Identified parents: father John King (~0.92 confidence) and father John King (~0.92 confidence) and father John King (~0.92 confidence) and mother Sarah King (~0.92 confidence) and mother Sarah King (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John King
b. ~1871
Source father
● Household
· direct · ~0.92
Father
John King
b. ~1876
Source father
● Household
· direct · ~0.92
Father
John King
b. ~1875
Source father
● Household
· direct · ~0.92
Mother
Sarah King
b. ~1875
Source mother
● Household
· direct · ~0.92
Mother
Sarah King
b. ~1877
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Ralph King
Son · 1930 · age 24 · b. ~1906 · Ohio
★ You are viewing this record
Sibling
Allie King
Sibling · 1930 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Clarence King
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 — Montgomery, Ohio
Open full size
1930 US Federal Census — Montgomery, Ohio
Page Contents
45 people indexed on this census page (ia:1930:ohiocensus00reel1851:0923)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Ella Shelton | 43 | Wife-H | — | Ohio |
| 2 | Ruth Shelton | 14 | Daughter | — | Ohio |
| 3 | Norman Shelton | 10 | Son | — | Ohio |
| 4 | Charles Snyder | 64 | Head | Printer | District Columbia |
| 5 | Elizabeth Snyder | 67 | Wife-H | — | Canada (English) |
| 6 | Bertha M. Gray | 51 | Head | Bookkeeper | Ohio |
| 7 | Paul J. Gray | 30 | Son | Sales Manager | Ohio |
| 8 | Harriet Gray | 28 | Daughter | Teller | Ohio |
| 9 | John L. Leach | 53 | Lodger | Engineer | Ohio |
| 10 | John King | 55 | Head | Wood Weaver | Ohio |
| 11 | Sarah A. King | 55 | Wife-H | — | Ohio |
| 12 | Clarence J. King | 27 | Son | Dry Cleaner | Ohio |
| 13 | Ralph J. King THIS PERSON | 24 | Son | Accountant | Ohio |
| 14 | Allie D. King | 22 | Daughter | — | Ohio |
| 15 | Andrew Dumas | 39 | Head | Electrician | Texas |
| 16 | Jane Dumas | 32 | Wife-H | Milliner | France |
| 17 | Mark Dumas | 10 | Son | — | France |
| 18 | Blackwell Dumas | 6 | Son | — | France |
| 19 | Marie Faure | 63 | Mother-in-law | — | France |
| 20 | Helen Wasson | 28 | Lodger | Machinist | Ohio |
| 21 | William O'Meara | 62 | Head | Plumbing | Ohio |
| 22 | Mary E. O'Meara | 58 | Wife-H | — | Indiana |
| 23 | Margaret O'Meara | 21 | Daughter | Stenographer | Ohio |
| 24 | Philomena Thompson | 47 | Head | — | Ohio |
| 25 | Helen Thompson | 22 | Daughter | Teller | Ohio |
| 26 | Margaret Thompson | 16 | Daughter | — | Ohio |
| 27 | Dorothy Thompson | 14 | Daughter | — | Ohio |
| 28 | Margaret Brual | 21 | Lodger | Multigraph | Ohio |
| 29 | Harry Wilkin | 36 | Head | Salesman | Ohio |
| 30 | Margaret Wilkin | 23 | Wife-H | — | Indiana |
| 31 | Bertha Johnston | 70 | Head | — | Ohio |
| 32 | Jess Dascal | 63 | Head | Elevator Operator | Ohio |
| 33 | Clara Dascal | 63 | Wife-H | Cook | Ohio |
| 34 | Ralph E. Luvigart | 46 | Head | Shipping Clerk | Ohio |
| 35 | Marie Luvigart | 45 | Wife-H | — | Germany |
| 36 | Ralph Luvigart | 19 | Son | — | Ohio |
| 37 | Roy Marsh | 55 | Head | Conductor | Ohio |
| 38 | Bessie Marsh | 50 | Wife-H | — | Ohio |
| 39 | Albert Bredling | 39 | Head | Policeman | Ohio |
| 40 | Ruth Bredling | 37 | Wife-H | — | Ohio |
| 41 | Norbert Bredling | 17 | Son | — | Ohio |
| 42 | Louis R. Wagner | 73 | Head | — | Ohio |
| 43 | Fred H. Wagner | 42 | Son | Proprietor | Ohio |
| 44 | Chas W. Wagner | 45 | Son | Proprietor | Ohio |
| 45 | Emma Fritz | 65 | Sister | — | Ohio |
Related Census Records
Pedigree Summary
Ralph + 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)