JD
James Day — 1930 US Census Record
Model Tree available1930 United States Federal Census · Orange, California
Our Model Tree links this James Day across the 1910, 1920 and 1930 US Censuses in Orange, California (XGBoost, ~Confirmed), with identified parents John & Arthur — first a son (b.~1906), then head of a 3-person household.
Age 24
b. ~1906
Male
Son
Born: Illinois
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Orange, California |
| Surname | Day |
| Given Name | James R. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Additional Details | |
| Occupation | Laborer |
| Industry | Farm |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Laborer |
| Township / Ward | Orange Township Pt |
| 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.
3 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| Arthur Day | Head | — | 60 | ~1870 |
| Anna Day | Other | — | 44 | ~1886 |
| James Day | Son | — | 24 | ~1906 |
Census Appearances
1910
Orange, California
Son, age 4
Orange, California · implied b. ~1906 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Day |
| Given Name | James |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | none |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1920
Orange, California
Son, age 13
Orange, California · implied b. ~1907 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Day |
| Given Name | James R. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Orange, California
Son, age 24
Orange, California · implied b. ~1906 — 3 household members
| Surname | Day |
| Given Name | James R. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | Laborer |
| Industry | Farm |
| Class of Worker | W |
| 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 James Day across 3 US Census years (1910, 1920 and 1930) in Orange, California, using XGBoost record linkage. Identified parents: father John Day (~0.92 confidence) and father Arthur Day (~0.92 confidence) and mother Anna Day (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Day
b. ~1865
Source father
● Household
· direct · ~0.92
Father
Arthur Day
b. ~1866
Source father
● Household
· direct · ~0.92
Mother
Anna Day
b. ~1882
Source mother
● Household
· direct · ~0.92
This person
Anchor record
James Day
Son · 1930 · age 24 · b. ~1906 · California
★ 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 — Orange, California
Open full size
1930 US Federal Census — Orange, California
Page Contents
50 people indexed on this census page (ia:1930:californiacensus00reel181:1044)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | William L. Moores | 46 | Head | Farmer | Nebraska |
| 52 | Anna Moores | 38 | Wife-H | — | California |
| 53 | Elmer Moores | 13 | Son | — | California |
| 54 | Louis Moores | 10 | Son | — | California |
| 55 | Florence Moores | 6 | Daughter | — | California |
| 56 | Ellis E. Campbell | 43 | Head | Farmer | Illinois |
| 57 | Clara C. Campbell | 43 | Wife-H | — | Nevada |
| 58 | Helen Campbell | 16 | Daughter | — | California |
| 59 | Cornelius W. Halsell | 68 | Head | Poultryman | California |
| 60 | Florence Halsell | 53 | Wife-H | — | Colorado |
| 61 | Ralph W. Baker | 49 | Brother-in-law | Laborer | Colorado |
| 62 | Nellie Weemer | 56 | Niece | — | California |
| 63 | Henry B. Wiseman | 73 | Head | Farmer | Iowa |
| 64 | Lily J. Wiseman | 74 | Wife-H | — | Iowa |
| 65 | Arthur J. Day | 60 | Head | Farmer | Illinois |
| 66 | Anna M. Day | 44 | Wife-H | — | Illinois |
| 67 | James R. Day THIS PERSON | 24 | Son | Laborer | Illinois |
| 68 | J. Anton Maag | 79 | Head | Farmer | Germany-Prussia |
| 69 | Katherine Maag | 68 | Wife-H | — | Michigan |
| 70 | Clarence Maag | 24 | Son | Farmer | California |
| 71 | Holmes W. Bishop | 44 | Head | Farmer | California |
| 72 | Merrie G. Bishop | 39 | Wife-H | Vocalist | Massachusetts |
| 73 | Velma F. Bishop | 16 | Daughter | — | Montana |
| 74 | Gordon H. Bishop | 11 | Son | — | California |
| 75 | Noble Bishop | 8 | Son | — | California |
| 76 | Lee A. Young | 34 | Head | Farmer | California |
| 77 | Gertrude Young | 65 | Mother-H | — | Holland |
| 78 | Burdette B. Frisbie | 40 | Head | Commercial Salesman | Ohio |
| 79 | Lena Frisbie | 40 | Wife-H | — | Indiana |
| 80 | Gretchen Frisbie | 19 | Daughter | — | Ohio |
| 81 | John Frisbie | 16 | Son | — | Ohio |
| 82 | Herbert Frisbie | 10 | Son | — | Ohio |
| 83 | Ross Frisbie | 8 | Son | — | Ohio |
| 84 | Patsie Frisbie | 2 | Daughter | — | California |
| 85 | Jacob J. Mueller | 69 | Head | Farmer | Germany-Saxony |
| 86 | Johannah Mueller | 62 | Wife-H | — | Germany-Saxony |
| 87 | Lydia E. Brucker | 33 | Daughter | Housework | California |
| 88 | Ruth Brucker | 14 | Lodger | — | Utah |
| 89 | Henry G. Rohrs | 54 | Head | Farmer | Ohio |
| 90 | Minnie A. Rohrs | 49 | Wife-H | — | Iowa |
| 91 | Kenneth Rohrs | 22 | Son | Laborer | California |
| 92 | Clarence Rohrs | 22 | Son | Laborer | California |
| 93 | Roy K. Bishop | 57 | Head | Proprietor | California |
| 94 | Mary H. Bishop | 56 | Wife-H | — | California |
| 95 | Arnold Bishop | 17 | Son | — | California |
| 96 | Edward J. Heiner | 49 | Head | Farmer | Kansas |
| 97 | Elda M. Heiner | 24 | Daughter | Teacher | Illinois |
| 98 | Edward J. Heiner | 21 | Son | Laborer | Illinois |
| 99 | Reynold W. Heiner | 18 | Son | Laborer | Illinois |
| 100 | Fred C. Ablett | 39 | Head | Farmer | Rhode Island |
Pedigree Summary
James
Gen 1 · 3 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)