JD
Jack Davis — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Grant, Indiana
Our Model Tree links this Jack Davis across the 1930 and 1940 US Censuses in Grant, Indiana (XGBoost, ~Confirmed) — first a son (b.~1929), then head of a 8-person household.
Age 1
b. ~1929
Male
Son
Born: Indiana
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Grant, Indiana |
| Surname | Davis |
| Given Name | Jack |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Ohio |
| Additional Details | |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
| Township / Ward | Marion City |
| Est. Birth Year | ~1929 |
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.
8 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Jack | Age | Birth yr |
|---|---|---|---|---|
| Ruby Davis | Spouse | — | 24 | ~1906 |
| Ruby Davis | Daughter | — | 8 | ~1922 |
| Harry Davis | Head | — | 45 | ~1885 |
| Junior Davis | Son | — | 5 | ~1925 |
| Morris Davis | Son | — | ~1930 | |
| Jack Davis | Son | — | 1 | ~1929 |
| Betty Davis | Daughter | — | 3 | ~1927 |
| Catherine Davis | Daughter | — | 6 | ~1924 |
Census Appearances
1930
Grant, Indiana
Son, age 1
Grant, Indiana · implied b. ~1929 — 8 household members
| Surname | Davis |
| Given Name | Jack |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Ohio |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1940
Grant-County, Indiana
Son, age 11
Grant-County, Indiana · implied b. ~1929 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davis |
| Given Name | Jackie |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Marion |
| 1935 Residence (County) | Grant |
| Income (1939) | 0 |
| Highest Grade | No 5 |
| 1935 Residence | Indiana |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
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 Jack Davis across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Jack Davis
Son · 1930 · age 1 · b. ~1929 · Indiana
★ You are viewing this record
Sibling
Junior Davis
Sibling · 1930 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Betty Davis
Sibling · 1930 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Catherine Davis
Sibling · 1930 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ruby Davis
Sibling · 1930 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Morris Davis
Sibling · 1930 · age
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 — Grant, Indiana
Open full size
1930 US Federal Census — Grant, Indiana
Page Contents
50 people indexed on this census page (ia:1930:indianacensus00reel589:0245)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Isaac Ditton | 79 | Head | — | Pennsylvania |
| 2 | Andrew Ditton | 61 | Son | Laborer | Indiana |
| 3 | Geo. Richardson | 70 | Roomer | Laborer | Indiana |
| 4 | Susie Copp | 50 | Roomer | — | Indiana |
| 5 | Estella Mead | 62 | Head | — | Kentucky |
| 6 | Roy Hatch | 45 | Head | Printer | Indiana |
| 7 | Carrie Hatch | 53 | Wife | — | Pennsylvania |
| 8 | Harry Davis | 45 | Head | Boilermaker | Indiana |
| 9 | Ruby Davis | 24 | Wife | — | Ohio |
| 10 | Ruby Davis | 8 | Daughter | — | Indiana |
| 11 | Catherine Davis | 6 | Daughter | — | Indiana |
| 12 | Junior Davis | 5 | Son | — | Indiana |
| 13 | Betty Davis | 3 | Daughter | — | Indiana |
| 14 | Jack Davis THIS PERSON | 1 | Son | — | Indiana |
| 15 | Morris Davis | 0 | Son | — | Indiana |
| 16 | Joel Overman | 51 | Head | Com. Traveler | Indiana |
| 17 | Edith Overman | 46 | Wife | — | Michigan |
| 18 | Edward Overman | 19 | Son | Newsboy | Indiana |
| 19 | James Overman | 18 | Son | Usher | Indiana |
| 20 | Romeo Tyner | 71 | Head | Engineer | Indiana |
| 21 | Sherwood Louise A. Tyner | 77 | Cousin | — | Texas |
| 22 | Adam Anael | 50 | Head | Printer | Ohio |
| 23 | Christina Anael | 46 | Wife | — | Ohio |
| 24 | Vern Hoyt | 36 | Head | Water Tender | Michigan |
| 25 | Laura Hoyt | 30 | Wife | — | Indiana |
| 26 | Deloris Hoyt | 13 | Daughter | — | Indiana |
| 27 | Violet Hoyt | 11 | Daughter | — | Indiana |
| 28 | Betty Hoyt | 5 | Daughter | — | Indiana |
| 29 | William F. Keynn | 60 | Head | Meat Cutter | Ohio |
| 30 | Addie Keynn | 48 | Wife | — | Indiana |
| 31 | Dorotha Keynn | 12 | Daughter | — | Indiana |
| 32 | Edward G. Behr | 39 | Head | — | Indiana |
| 33 | Fannie Behr | 34 | Wife | — | Indiana |
| 34 | Wm. G. Behr | 18 | Son | Laborer | Indiana |
| 35 | Jess Behr | 15 | Son | — | Indiana |
| 36 | Gwendolyn Behr | 13 | Daughter | — | Indiana |
| 37 | Donald Behr | 10 | Son | — | Indiana |
| 38 | Beverly Behr | 9 | Daughter | — | Indiana |
| 39 | Janet R. Behr | 5 | Daughter | — | Indiana |
| 40 | Lydia Behr | 73 | Mother | Saleswoman | Indiana |
| 41 | James E. Fisher | 63 | Head | Undertaker | Ohio |
| 42 | Ella Fisher | 57 | Wife | — | Ohio |
| 43 | Parker D. Smith | 70 | Head | Civ. Engineer | Ohio |
| 44 | Ida L. Smith | 69 | Wife | — | Illinois |
| 45 | Emma J. Byron | 62 | Head | — | Indiana |
| 46 | Ada A. Mills | 74 | Head | — | Indiana |
| 47 | Millie Mills | 83 | Sister | — | Indiana |
| 48 | Newton Davis | 67 | Head | Carpenter | Kentucky |
| 49 | Jennie Davis | 57 | Wife | — | Indiana |
| 50 | Claude Brookshire | 36 | Boarder | Steward | Indiana |
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)