MH
Mary Hart — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Knox, Tennessee
Our Model Tree links this Mary Hart across the 1920, 1930 and 1940 US Censuses in Knox, Tennessee (XGBoost, ~Confirmed) — first a spouse (b.~1880), then head of a 3-person household.
Age 50
b. ~1880
Female
Spouse
Born: Tennessee
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Knox, Tennessee |
| Surname | Hart |
| Given Name | Mary S. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| 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 | Knoxville City |
| Est. Birth Year | ~1880 |
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 Mary | Age | Birth yr |
|---|---|---|---|---|
| John Hart | Head | — | 50 | ~1880 |
| Claude Hart | Son | — | 15 | ~1915 |
| Mary Hart | Spouse | — | 50 | ~1880 |
Census Appearances
1920
Knox, Tennessee
Spouse, age 40
Knox, Tennessee · implied b. ~1880 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hart |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Tennessee |
| Father's Birthplace | Tennessee |
| Mother's Birthplace | Tennessee |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Tennessee |
| Birth Country | United States |
| Birthplace (normalized) | tennessee |
1930
Knox, Tennessee
Spouse, age 50
Knox, Tennessee · implied b. ~1880 — 3 household members
| Surname | Hart |
| Given Name | Mary S. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | Tennessee |
| Father's Birthplace | Tennessee |
| Mother's Birthplace | Tennessee |
| Can Read/Write | Yes |
| Birth State | Tennessee |
| Birth Country | United States |
| Birthplace (normalized) | tennessee |
1940
Knox-County, Tennessee
Other, age 59
Knox-County, Tennessee · implied b. ~1881 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hard |
| Given Name | Mary |
| Relationship to Head | Lodger |
| Sex | F |
| Color / Race | White |
| Age | 59 |
| Marital Status | Divorced |
| Birthplace | Tennessee |
| 1935 Residence (City) | Knoxville City |
| 1935 Residence (County) | Knox |
| Highest Grade | No 0 |
| 1935 Residence | Same place |
| 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 Hart across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Hart
Spouse · 1930 · age 50 · b. ~1880 · Tennessee
★ 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 — Knox, Tennessee
Open full size
1930 US Federal Census — Knox, Tennessee
Page Contents
50 people indexed on this census page (ia:1930:15thcensus2259unit:0060)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | John M. Hart | 50 | Head | — | Tennessee |
| 52 | Mary S. Hart THIS PERSON | 50 | Wife | — | Tennessee |
| 53 | Claude M. Hart | 15 | Son | — | Tennessee |
| 54 | Grace L. Jeffries | 41 | Head | Stenographer | Tennessee |
| 55 | Lois J. Jeffries | 31 | Wife | — | Tennessee |
| 56 | Alice E. Jeffries | 6 | Daughter | — | Tennessee |
| 57 | Hazel E. Jeffries | 2 | Daughter | — | Tennessee |
| 58 | Robert V. Jeffries | 69 | Father-in-law | — | Tennessee |
| 59 | Oscar F. Robinson | 32 | Head | Foreman | Tennessee |
| 60 | Helen Robinson | 23 | Wife | — | Tennessee |
| 61 | Ruth L. Robinson | 3 | Daughter | — | Tennessee |
| 62 | Mitchell E. Robinson | 17 | Brother | Laborer | Tennessee |
| 63 | Edgar S. Groom | 32 | Head | Laborer | Tennessee |
| 64 | Stella M. Groom | 32 | Wife | Minister | Tennessee |
| 65 | Joseph L. Groom | 13 | Son | — | Tennessee |
| 66 | Edgar J. Groom | 11 | Son | — | Tennessee |
| 67 | Edna E. Groom | 9 | Daughter | — | Tennessee |
| 68 | Libby Groom | 7 | Daughter | — | Tennessee |
| 69 | Mildred Groom | 5 | Daughter | — | Tennessee |
| 70 | Sarah J. Groom | 1 | Daughter | — | Tennessee |
| 71 | Amos S. Yearwood | 52 | Head | Merchant | Tennessee |
| 72 | Georgia L. Yearwood | 57 | Wife | — | North Carolina |
| 73 | Ruth E. Yearwood | 23 | Daughter | — | Tennessee |
| 74 | Alice R. Yearwood | 21 | Son | Upholsterer | Tennessee |
| 75 | Annie Yearwood | 21 | Daughter | — | Tennessee |
| 76 | James Yearwood | 22 | Son-in-law | Salesman | Tennessee |
| 77 | James Yearwood | 1 | Grandson | — | Tennessee |
| 78 | Albert F. Gardner | 47 | Head | Laborer | Tennessee |
| 79 | Carrie E. Gardner | 39 | Wife | — | Tennessee |
| 80 | Mildred E. Gardner | 20 | Daughter | — | Tennessee |
| 81 | Ruby G. Gardner | 19 | Daughter | — | Tennessee |
| 82 | Ruth L. Gardner | 17 | Son | Laborer | Tennessee |
| 83 | Lester E. Gardner | 15 | Son | — | Tennessee |
| 84 | Lucile E. Gardner | 12 | Daughter | — | Tennessee |
| 85 | Margaret L. Gardner | 11 | Daughter | — | Tennessee |
| 86 | Dorothy L. Gardner | 9 | Daughter | — | Tennessee |
| 87 | Ches A. Tritt | 42 | Head | Laborer | Tennessee |
| 88 | Lois M. Tritt | 30 | Wife | — | Tennessee |
| 89 | Marie P. Tritt | 3 | Daughter | — | Tennessee |
| 90 | William E. Tritt | 1 | Son | — | Tennessee |
| 91 | Alfred R. Farmer | 83 | Head | — | Tennessee |
| 92 | Cloy Farmer | 22 | Grandson | Shipping Clerk | Tennessee |
| 93 | Alice L. Farmer | 21 | Granddaughter | — | Tennessee |
| 94 | Howard D. Farmer | 3 | Great Grandson | — | Tennessee |
| 95 | Frank T. Toland | 45 | Head | Inner | Tennessee |
| 96 | Ella M. Toland | 29 | Wife | — | Tennessee |
| 97 | Ethel M. Toland | 16 | Daughter | — | Pennsylvania |
| 98 | Earl L. Toland | 10 | Son | — | Tennessee |
| 99 | Bessie L. Toland | 6 | Daughter | — | Tennessee |
| 100 | Toland | None | — | — | — |
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)