MJ
Mary Jacobs — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Knott, Kentucky
Our Model Tree links this Mary Jacobs across the 1930 and 1940 US Censuses in Knott, Kentucky (XGBoost, ~Confirmed) — first a daughter (b.~1922), then head of a 14-person household.
Age 8
b. ~1922
Female
Daughter
Born: Kentucky
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Knott, Kentucky |
| Surname | Jacobs |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | Kentucky |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Additional Details | |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
| Township / Ward | Magisterial Dist No 1 Caney Fork |
| Est. Birth Year | ~1922 |
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.
14 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Lillie Jacobs | Daughter | — | 19 | ~1911 |
| Lula Jacobs | Daughter | — | 4 | ~1926 |
| Margaret Jacobs | Daughter | — | 15 | ~1915 |
| Georgia Jacobs | Daughter | — | 2 | ~1928 |
| Alice Jacobs | Daughter | — | 18 | ~1912 |
| Mary Jacobs | Daughter | — | 8 | ~1922 |
| Lucy Jacobs | Daughter | — | 8 | ~1922 |
| Minnie Jacobs | Daughter | — | 10 | ~1920 |
| Philip Jacobs | Head | — | 57 | ~1873 |
| Jesse Jacobs | Son | — | 3 | ~1927 |
| Art Jacobs | Son | — | 12 | ~1918 |
| Ernest Jacobs | Son | — | 5 | ~1925 |
| Eddie Jacobs | Son | — | 22 | ~1908 |
| Frankie Jacobs | Spouse | — | 51 | ~1879 |
Census Appearances
1930
Knott, Kentucky
Daughter, age 8
Knott, Kentucky · implied b. ~1922 — 14 household members
| Surname | Jacobs |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | Kentucky |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1940
Knott-County, Kentucky
Spouse, age 19
Knott-County, Kentucky · implied b. ~1921 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jacobs |
| Given Name | Mazie |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 19 |
| Marital Status | Married |
| Birthplace | Kentucky |
| 1935 Residence (City) | Magisterial Dist 3 |
| 1935 Residence (County) | Knott |
| Class of Worker | 0 |
| Hours Worked | 0 |
| Highest Grade | No 0 |
| 1935 Residence | Same place |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
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 Mary Jacobs across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Jacobs
Daughter · 1930 · age 8 · b. ~1922 · Kentucky
★ You are viewing this record
Sibling
Lucy Jacobs
Sibling · 1930 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alice Jacobs
Sibling · 1930 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Eddie Jacobs
Sibling · 1930 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jesse Jacobs
Sibling · 1930 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Minnie Jacobs
Sibling · 1930 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Art Jacobs
Sibling · 1930 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Jacobs
Sibling · 1930 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lillie Jacobs
Sibling · 1930 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ernest Jacobs
Sibling · 1930 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Georgia Jacobs
Sibling · 1930 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lula Jacobs
Sibling · 1930 · age 4
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 — Knott, Kentucky
Open full size
1930 US Federal Census — Knott, Kentucky
Page Contents
50 people indexed on this census page (ia:1930:kentuckycensus00reel760:1087)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Nettie Gott | 17 | Wife | — | Kentucky |
| 52 | John Oakley | 25 | Head | — | Kentucky |
| 53 | Lona Ellen Oakley | 25 | Wife | Farmer | Kentucky |
| 54 | Virgie Oakley | 2 | Daughter | — | Kentucky |
| 55 | Milda Oakley | 1 | Daughter | — | Kentucky |
| 56 | Philip Jacobs | 57 | Head | Farmer | Kentucky |
| 57 | Frankie Jacobs | 51 | Wife | — | Kentucky |
| 58 | Eddie Jacobs | 22 | Son | Laborer | Kentucky |
| 59 | Alice Jacobs | 18 | Daughter | — | Kentucky |
| 60 | Margaret Jacobs | 15 | Daughter | — | Kentucky |
| 61 | Art Jacobs | 12 | Son | — | Kentucky |
| 62 | Minnie Jacobs | 10 | Daughter | — | Kentucky |
| 63 | Mary Jacobs THIS PERSON | 8 | Daughter | — | Kentucky |
| 64 | Lucy Jacobs | 8 | Daughter | — | Kentucky |
| 65 | Lula Jacobs | 4 | Daughter | — | Kentucky |
| 66 | Lillie Jacobs | 19 | Daughter | — | Kentucky |
| 67 | Ernest Jacobs | 5 | Son | — | Kentucky |
| 68 | Jesse Jacobs | 3 | Son | — | Kentucky |
| 69 | Georgia Jacobs | 2 | Daughter | — | Kentucky |
| 70 | George Jacobs | 28 | Head | Farmer | Kentucky |
| 71 | Effie Jacobs | 22 | Wife | — | Kentucky |
| 72 | Jeffrey Jacobs | 2 | Son | — | Kentucky |
| 73 | Odis Jacobs | 20 | Head | Farmer | Kentucky |
| 74 | Lona Jacobs | 15 | Wife | — | Kentucky |
| 75 | Clapp Jacobs | 37 | Head | Farmer | Kentucky |
| 76 | Rethena Jacobs | 23 | Wife | — | Kentucky |
| 77 | Lee Jacobs | 14 | Son | — | Kentucky |
| 78 | Walter Jacobs | 12 | Son | — | Kentucky |
| 79 | Spencer Jacobs | 10 | Daughter | — | Kentucky |
| 80 | Corina Jacobs | 8 | Daughter | — | Kentucky |
| 81 | Milo Jacobs | 6 | Son | — | Kentucky |
| 82 | Lawson Jacobs | 5 | Son | — | Kentucky |
| 83 | Clarence Jacobs | 3 | Son | — | Kentucky |
| 84 | Justin Jacobs | 1 | Son | — | Kentucky |
| 85 | Lula Jacobs | 1 | Daughter | — | Kentucky |
| 86 | Floyd Caudill | 40 | Head | Farmer | Kentucky |
| 87 | Lavina Caudill | 39 | Wife | — | Kentucky |
| 88 | Alton Caudill | 17 | Son | — | Kentucky |
| 89 | Ursula Caudill | 15 | Son | — | Kentucky |
| 90 | Gladys Caudill | 11 | Daughter | — | Kentucky |
| 91 | Bevy Caudill | 8 | Son | — | Kentucky |
| 92 | Mary L. Caudill | 7 | Daughter | — | Kentucky |
| 93 | Corbett Caudill | 5 | Son | — | Kentucky |
| 94 | Alvon Caudill | 3 | Son | — | Kentucky |
| 95 | Addie M. Caudill | 1 | Daughter | — | Kentucky |
| 96 | Hannon Hannon | 67 | Head | Farmer | Kentucky |
| 97 | Annie Hannon | 62 | Wife | — | Kentucky |
| 98 | Adam Hannon | 35 | Son | Laborer | Kentucky |
| 99 | Bessie Hannon | 28 | Daughter | — | Kentucky |
| 100 | John M. Hannon | 14 | Son | — | Kentucky |
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)