MK
Mary Knox — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Roane, Tennessee
Our Model Tree links this Mary Knox across the 1920 and 1930 US Censuses in Roane, Tennessee (XGBoost, ~Confirmed) — first a daughter (b.~1916), then head of a 11-person household.
Age 14
b. ~1916
Female
Daughter
Born: Tennessee
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Roane, Tennessee |
| Surname | Knox |
| Given Name | Mary E |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Tennessee |
| Father's Birthplace | Tennessee |
| Mother's Birthplace | Tennessee |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Tennessee |
| Birth Country | United States |
| Birthplace (normalized) | tennessee |
| Township / Ward | 5Th Civil District |
| 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.
11 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Agnes Knox | Daughter | — | 17 | ~1913 |
| Hubert Kirby | Other | — | 1 | ~1929 |
| William Knox | Head | — | 55 | ~1875 |
| Nancy Knox | Spouse | — | 41 | ~1889 |
| Earl Kirby | Other | — | 24 | ~1906 |
| Carl Knox | Son | — | 9 | ~1921 |
| Arthur Knox | Son | — | 6 | ~1924 |
| Gladys True | Other | — | 17 | ~1913 |
| Frank Knox | Son | — | 11 | ~1919 |
| Nellie Kirby | Other | — | 20 | ~1910 |
| Mary Knox | Daughter | — | 14 | ~1916 |
Census Appearances
1920
Roane, Tennessee
Daughter, age 4
Roane, Tennessee · implied b. ~1916 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Knox |
| Given Name | Mary E |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Tennessee |
| Father's Birthplace | Tennessee |
| Mother's Birthplace | Tennessee |
| Birth State | Tennessee |
| Birth Country | United States |
| Birthplace (normalized) | tennessee |
1930
Roane, Tennessee
Daughter, age 14
Roane, Tennessee · implied b. ~1916 — 11 household members
| Surname | Knox |
| Given Name | Mary E |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Tennessee |
| Father's Birthplace | Tennessee |
| Mother's Birthplace | Tennessee |
| Can Read/Write | Yes |
| Birth State | Tennessee |
| Birth Country | United States |
| Birthplace (normalized) | tennessee |
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 Knox across 2 US Census years (1920 and 1930) in Roane, Tennessee, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Knox
Daughter · 1930 · age 14 · b. ~1916 · Tennessee
★ You are viewing this record
Sibling
Arthur Knox
Sibling · 1930 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Frank Knox
Sibling · 1930 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Carl Knox
Sibling · 1930 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Agnes Knox
Sibling · 1930 · age 17
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 — Roane, Tennessee
Open full size
1930 US Federal Census — Roane, Tennessee
Page Contents
50 people indexed on this census page (ia:1930:15thcensus2269unit:0955)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Fletcher F Scott | 31 | Head | Miner | Tennessee |
| 2 | Emma R Scott | 27 | Wife | — | Kentucky |
| 3 | Thomas F Scott | 8 | Son | — | Tennessee |
| 4 | Ida R Scott | 6 | Daughter | — | Tennessee |
| 5 | William H Scott | 4 | Son | — | Tennessee |
| 6 | Ruth A Scott | 2 | Daughter | — | Tennessee |
| 7 | June Scott | 1 | Daughter | — | Tennessee |
| 8 | William Hardin | 31 | Head | Miner | Tennessee |
| 9 | Viola Hardin | 35 | Wife | — | Tennessee |
| 10 | Arnold Hardin | 5 | Son | — | Tennessee |
| 11 | Hugh G Hardin | 2 | Son | — | Tennessee |
| 12 | Betty R Hardin | 0 | Daughter | — | Tennessee |
| 13 | Jacob A Amance | 54 | Head | Carpenter | Tennessee |
| 14 | Laura C Amance | 38 | Wife | — | Tennessee |
| 15 | Helen A Amance | 19 | Daughter | — | Tennessee |
| 16 | Jack A Amance | 18 | Son | Helper | Tennessee |
| 17 | Mollie H Amance | 15 | Daughter | — | Tennessee |
| 18 | Ruth M Amance | 13 | Daughter | — | Tennessee |
| 19 | June M Amance | 4 | Daughter | — | Tennessee |
| 20 | William M Knox | 55 | Head | Laborer | Tennessee |
| 21 | Nancy L Knox | 41 | Wife | — | Tennessee |
| 22 | Agnes L Knox | 17 | Daughter | Knitter | Tennessee |
| 23 | Mary E Knox THIS PERSON | 14 | Daughter | — | Tennessee |
| 24 | Frank N Knox | 11 | Son | — | Tennessee |
| 25 | Carl T Knox | 9 | Son | — | Tennessee |
| 26 | Arthur C Knox | 6 | Son | — | Tennessee |
| 27 | Earl H Kirby | 24 | Boarder | Laborer | Tennessee |
| 28 | Nellie L Kirby | 20 | Boarder | Knitter | Tennessee |
| 29 | Hubert H Kirby | 1 | Boarder | — | Tennessee |
| 30 | Gladys M True | 17 | Boarder | Knitter | Tennessee |
| 31 | Florence Pierce | 39 | Head | — | Tennessee |
| 32 | Lora L Pierce | 13 | Daughter | — | Kentucky |
| 33 | Elvara Pierce | 10 | Daughter | — | Alabama |
| 34 | Evalyn Pierce | 8 | Daughter | — | Kentucky |
| 35 | Robert D Pierce | 6 | Son | — | Kentucky |
| 36 | Gladys M Pierce | 4 | Daughter | — | Kentucky |
| 37 | Juanita Pierce | 2 | Daughter | — | Kentucky |
| 38 | Millie Hicks | 67 | Mother | — | Tennessee |
| 39 | William H Joseph | 60 | Head | — | Ohio |
| 40 | Emma E Joseph | 60 | Wife | — | Tennessee |
| 41 | Alma F Joseph | 35 | Daughter | — | Tennessee |
| 42 | Mary E Joseph | 17 | Daughter | — | Tennessee |
| 43 | Albert T Hinds | 42 | Head | Laborer | Tennessee |
| 44 | Pearlie V Hinds | 37 | Wife | — | Tennessee |
| 45 | Casper W Hinds | 10 | Son | Drayman | Tennessee |
| 46 | George W Treadway | 41 | Head | Laborer | Tennessee |
| 47 | Francis O Treadway | 38 | Wife | — | Tennessee |
| 48 | Paul R Treadway | 17 | Son | — | Tennessee |
| 49 | Rachel L Treadway | 13 | Daughter | — | Tennessee |
| 50 | Evelyn M Treadway | 10 | Daughter | — | Tennessee |
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)