JD
Jack Davis — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Monroe, Indiana
Our Model Tree links this Jack Davis across the 1930 and 1940 US Censuses in Monroe, Indiana (XGBoost, ~Confirmed) — first a son (b.~1923), then head of a 13-person household.
Age 7
b. ~1923
Male
Son
Born: Indiana
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Monroe, Indiana |
| Surname | Davis |
| Given Name | Jack |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Indiana |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
| Township / Ward | Bloomington Township |
| Est. Birth Year | ~1923 |
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.
13 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Jack | Age | Birth yr |
|---|---|---|---|---|
| John Virgin | Other | — | 67 | ~1863 |
| Sylvester Davis | Son | — | 1 | ~1929 |
| Lenora Davis | Daughter | — | 13 | ~1917 |
| John Davis | Son | — | 9 | ~1921 |
| Gaynell Davis | Daughter | — | 11 | ~1919 |
| Sylvester Davis | Head | — | 31 | ~1899 |
| Beatrice Lawhead | Other | — | 10 | ~1920 |
| Gayle Lawhead | Other | — | 36 | ~1894 |
| Henry Patton | Other | — | 67 | ~1863 |
| Alice Davis | Other | — | 32 | ~1898 |
| Jack Davis | Son | — | 7 | ~1923 |
| Anna Virgin | Other | — | 58 | ~1872 |
| Joseph Davis | Son | — | 4 | ~1926 |
Census Appearances
1930
Monroe, Indiana
Son, age 7
Monroe, Indiana · implied b. ~1923 — 13 household members
| Surname | Davis |
| Given Name | Jack |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Indiana |
| Can Read/Write | Yes |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1940
Monroe-County, Indiana
Son, age 18
Monroe-County, Indiana · implied b. ~1922 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davis |
| Given Name | Jackie |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Bloomington |
| 1935 Residence (County) | Monroe |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| 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 7 · b. ~1923 · Indiana
★ You are viewing this record
Sibling
Gaynell Davis
Sibling · 1930 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lenora Davis
Sibling · 1930 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Davis
Sibling · 1930 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Davis
Sibling · 1930 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Sylvester Davis
Sibling · 1930 · age 1
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 — Monroe, Indiana
Open full size
1930 US Federal Census — Monroe, Indiana
Page Contents
50 people indexed on this census page (ia:1930:indianacensus00reel618:0939)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Doris Siscoe | 10 | Daughter | — | Indiana |
| 52 | Lola F. Siscoe | 6 | Daughter | — | Indiana |
| 53 | James Siscoe | 4 | Son | — | Indiana |
| 54 | Earnest Siscoe | 2 | Son | — | Indiana |
| 55 | Earl Patton | 30 | Head | Laborer | Indiana |
| 56 | Ethel Patton | 24 | Wife-H | — | Indiana |
| 57 | Earnest Patton | 8 | Son | — | Indiana |
| 58 | Lois Patton | 6 | Daughter | — | Indiana |
| 59 | Donald Patton | 1 | Son | — | Indiana |
| 60 | Sylvester Davis | 31 | Head | Lumberman | Kentucky |
| 61 | Alice Davis | 32 | Wife-H | — | Indiana |
| 62 | Lenora Davis | 13 | Daughter | — | Indiana |
| 63 | Gaynell Davis | 11 | Daughter | — | Indiana |
| 64 | John R. Davis | 9 | Son | — | Indiana |
| 65 | Jack Davis THIS PERSON | 7 | Son | — | Indiana |
| 66 | Joseph Davis | 4 | Son | — | Indiana |
| 67 | Sylvester Jr. Davis | 1 | Son | — | Indiana |
| 68 | John Virgin | 67 | Father-in-law | Farmer | Indiana |
| 69 | Anna Virgin | 58 | Mother-in-law | — | Indiana |
| 70 | Gayle Lawhead | 36 | Sister-in-law | — | Indiana |
| 71 | Beatrice Lawhead | 10 | Niece | — | Indiana |
| 72 | Henry Patton | 67 | Father | Farmer | Indiana |
| 73 | Nola M. Hardy | 41 | Head | Farmer | Indiana |
| 74 | Maurice Hardy | 21 | Son | Stone Cutter | Indiana |
| 75 | Lois Hardy | 19 | Daughter-in-law | Laborer | Indiana |
| 76 | Robert Hardy | 5 | Son | — | Indiana |
| 77 | Charles Gardner | 66 | Head | Laborer | Indiana |
| 78 | Nancy E. Gardner | 55 | Wife-H | — | Indiana |
| 79 | James Patton | 51 | Head | Car Blocker | Indiana |
| 80 | Alta Patton | 38 | Wife-H | — | Indiana |
| 81 | Marion Patton | 17 | Son | — | Indiana |
| 82 | Pauline Patton | 14 | Daughter | — | Indiana |
| 83 | Rolls Patton | 10 | Son | — | Indiana |
| 84 | Katherine Patton | 8 | Daughter | — | Indiana |
| 85 | Harry Patton | 4 | Son | — | Indiana |
| 86 | Mollie Haflick | 52 | Head | Farmer | Indiana |
| 87 | Dwight Haflick | 28 | Son | Employee Manager | Arkansas |
| 88 | Elsie Haflick | 30 | Wife-H | — | Indiana |
| 89 | Herbert Haflick | 8 | Grandson | — | Indiana |
| 90 | Frank L. Burks | 29 | Head | Foreman | Indiana |
| 91 | Lois Burks | 27 | Wife-H | — | Arkansas |
| 92 | Betty Burks | 4 | Daughter | — | Indiana |
| 93 | Clarence Engledow | 38 | Head | Laborer | Indiana |
| 94 | Emma Engledow | 31 | Wife-H | — | Indiana |
| 95 | Mildred Engledow | 10 | Daughter | — | Indiana |
| 96 | Ruth E. Engledow | 9 | Daughter | — | Indiana |
| 97 | Mary R. Engledow | 6 | Daughter | — | Indiana |
| 98 | Mollie J. Engledow | 3 | Daughter | — | Indiana |
| 99 | Frank B. Ridge | 50 | Head | Superintendent | Indiana |
| 100 | Elizabeth H. Ridge | 48 | Wife-H | — | Illinois |
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)