RJ
Ralph Jones — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Alameda, California
Our Model Tree links this Ralph Jones across the 1920 and 1930 US Censuses in Alameda, California (XGBoost, ~Confirmed) — first a son (b.~1916), then head of a 25-person household.
Age 14
b. ~1916
Male
Son
Born: Illinois
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Alameda, California |
| Surname | Jones |
| Given Name | Ralph Jr. |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | New York |
| Mother's Birthplace | Wisconsin |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | San Leandro City |
| Est. Birth Year | ~1916 |
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.
25 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Ralph | Age | Birth yr |
|---|---|---|---|---|
| Rowena Meryer | Daughter | — | 15 | ~1915 |
| Mildred Ludger | Daughter | — | 1 | ~1929 |
| Alma Pederson | Daughter | — | 1 | ~1929 |
| Patrick Wheeler | Other | — | 75 | ~1855 |
| Roger Vandella | Other | — | 49 | ~1881 |
| Jackson Ferry | Other | — | 56 | ~1874 |
| W Jack | Other | — | 25 | ~1905 |
| Roderick Meryer | Other | — | 44 | ~1886 |
| George Balfour | Other | — | 50 | ~1880 |
| Frank Pederson | Other | — | 23 | ~1907 |
| W Cadmus | Other | — | 45 | ~1885 |
| Geo Allen | Other | — | 38 | ~1892 |
| Harry Opdyke | Other | — | 38 | ~1892 |
| Jackson Ferry | Other | — | 56 | ~1874 |
| Ralph Jones | Other | — | 41 | ~1889 |
| Ralph Jones | Son | — | 14 | ~1916 |
| Georgia Balfour | Spouse | — | 50 | ~1880 |
| Evelyn Vandella | Spouse | — | 45 | ~1885 |
| Marion Jones | Spouse | — | 42 | ~1888 |
| Mary Meryer | Spouse | — | 37 | ~1893 |
| Frances Ferry | Spouse | — | 46 | ~1884 |
| Bessy Opdyke | Spouse | — | 36 | ~1894 |
| Evelyn Pederson | Spouse | — | 19 | ~1911 |
| Frances Ferry | Spouse | — | 46 | ~1884 |
| Josephine Jack | Spouse | — | 24 | ~1906 |
Census Appearances
1920
Alameda, California
Son, age 3
Alameda, California · implied b. ~1917 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jones |
| Given Name | Ralph Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | New York |
| Mother's Birthplace | Wisconsin |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Alameda, California
Son, age 14
Alameda, California · implied b. ~1916 — 25 household members
| Surname | Jones |
| Given Name | Ralph Jr. |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | New York |
| Mother's Birthplace | Wisconsin |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
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 Jones across 2 US Census years (1920 and 1930) in Alameda, California, using XGBoost record linkage.
Show:
This person
Anchor record
Ralph Jones
Son · 1930 · age 14 · b. ~1916 · California
★ You are viewing this record
Sibling
Mildred Ludger
Sibling · 1930 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alma Pederson
Sibling · 1930 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rowena Meryer
Sibling · 1930 · age 15
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 — Alameda, California
Open full size
1930 US Federal Census — Alameda, California
Page Contents
50 people indexed on this census page (ia:1930:acpl_california_10_reel10:0207)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Roderick Meryer | 44 | H | Superintendent | California |
| 52 | Mary Meryer | 37 | wife | None | California |
| 53 | Rowena Meryer | 15 | daughter | — | California |
| 54 | Patrick Wheeler | 75 | boarder | Storekeeper | Iowa |
| 55 | Ralph E. Jones | 41 | H | Teller | New York |
| 56 | Marion S. Jones | 42 | wife | Director | Wisconsin |
| 57 | Ralph Jr. Jones THIS PERSON | 14 | son | — | Illinois |
| 58 | Roger Vandella | 49 | H | Conductor | California |
| 59 | Evelyn Vandella | 45 | wife | Floorlady | California |
| 60 | Evelyn Pederson | 19 | wife | Assembly | California |
| 61 | Frank Pederson | 23 | H | Electrician | California |
| 62 | Alma Pederson | 1 | daughter | — | California |
| 63 | W. L. Jack | 25 | H | Commercial | California |
| 64 | Josephine Jack | 24 | wife | — | Missouri |
| 65 | Mildred Ludger | 1 | daughter | — | California |
| 66 | Geo. D. Allen | 38 | H | Mail Clerk | New York |
| 67 | W. G. Cadmus | 45 | H | Draftsman | California |
| 68 | George Balfour | 50 | H | Salesman | Nebraska |
| 69 | Georgia R. Balfour | 50 | wife | Manufacturer | Missouri |
| 70 | Harry Opdyke | 38 | H | Electrician | Pennsylvania |
| 71 | Bessy Opdyke | 36 | wife | Stenographer | Arkansas |
| 72 | — | None | — | — | — |
| 73 | — | None | — | — | — |
| 74 | — | None | — | — | — |
| 75 | — | None | — | — | — |
| 76 | — | None | — | — | — |
| 77 | — | None | — | — | — |
| 78 | — | None | — | — | — |
| 79 | — | None | — | — | — |
| 80 | — | None | — | — | — |
| 81 | — | None | — | — | — |
| 82 | — | None | — | — | — |
| 83 | — | None | — | — | — |
| 84 | — | None | — | — | — |
| 85 | — | None | — | — | — |
| 86 | — | None | — | — | — |
| 87 | — | None | — | — | — |
| 88 | — | None | — | — | — |
| 89 | — | None | — | — | — |
| 90 | — | None | — | — | — |
| 91 | — | None | — | — | — |
| 92 | — | None | — | — | — |
| 93 | — | None | — | — | — |
| 94 | — | None | — | — | — |
| 95 | — | None | — | — | — |
| 96 | Jackson Ferry | 56 | H | Salesman | California |
| 97 | Frances Ferry | 46 | wife | None | California |
| 98 | Jackson Ferry | 56 | H | Salesman | California |
| 99 | Frances Ferry | 46 | wife | None | California |
| 100 | — | None | — | — | — |
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)