MH
Mary Harper — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Mccracken-County, Kentucky
Our Model Tree links this Mary Harper across the 1920, 1930 and 1940 US Censuses in Mccracken-County, Kentucky (XGBoost, ~Confirmed) — first a spouse (b.~1887), then head of a 3-person household.
Age 53
b. ~1887
Female
Spouse
Born: Kentucky
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Mccracken-County, Kentucky |
| Surname | Harper |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 53 |
| Marital Status | Married |
| Birthplace | Kentucky |
| 1935 Residence (City) | Paducah |
| 1935 Residence (County) | McCracken |
| Additional Details | |
| Highest Grade | No 2 |
| 1935 Residence | Kentucky |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
| Township / Ward | Mag Dist 2 |
| Est. Birth Year | ~1887 |
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 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Charlie Harper | Head | — | 52 | ~1888 |
| Clyde Harper | Son | — | 18 | ~1922 |
| Mary Harper | Spouse | — | 53 | ~1887 |
Census Appearances
1920
Mccracken, Kentucky
Spouse, age 33
Mccracken, Kentucky · implied b. ~1887 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Harper |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Kentucky |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1930
Mccracken, Kentucky
Spouse, age 43
Mccracken, Kentucky · implied b. ~1887 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Harper |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | Kentucky |
| Age at First Marriage | 18 |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Occupation | none |
| Can Read/Write | No |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1940
Mccracken-County, Kentucky
Spouse, age 53
Mccracken-County, Kentucky · implied b. ~1887 — 3 household members
| Surname | Harper |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 53 |
| Marital Status | Married |
| Birthplace | Kentucky |
| 1935 Residence (City) | Paducah |
| 1935 Residence (County) | McCracken |
| Highest Grade | No 2 |
| 1935 Residence | Kentucky |
| 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 Harper across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Harper
Spouse · 1940 · age 53 · b. ~1887 · Kentucky
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Mccracken-County, Kentucky
Open full size
1940 US Federal Census — Mccracken-County, Kentucky
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01335-00293)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Patrick Bloomfield | 32 | Head | Route Man | Kentucky |
| 42 | Helen H Bloomfield | 29 | Wife | Teacher | Kentucky |
| 43 | Nancy J Bloomfield | 8 | Daughter | — | Michigan |
| 44 | Velvin Betway | 27 | Head | Laborer | Kentucky |
| 45 | Rhoda B Betway | 19 | Wife | — | Kentucky |
| 46 | Ethel Jones | 47 | Mother | — | Kentucky |
| 47 | Lucinda Jones | 77 | Grandmother | — | Kentucky |
| 48 | Charlie Harper | 52 | Head | Laborer | Kentucky |
| 49 | Mary Harper THIS PERSON | 53 | Wife | — | Kentucky |
| 50 | Clyde Harper | 18 | Son | Laborer | Kentucky |
| 51 | Clarence Ervin | 34 | Head | Tinner | Kentucky |
| 52 | Agnes V Ervin | 42 | Wife | — | Kentucky |
| 53 | Virginia G Ervin | 15 | Daughter | — | Kentucky |
| 54 | William E Ervin | 14 | Son | — | Kentucky |
| 55 | Agnes L Ervin | 12 | Daughter | — | Kentucky |
| 56 | Joseph B Ervin | 11 | Son | — | Kentucky |
| 57 | Clarence E Ervin | 10 | Son | — | Kentucky |
| 58 | Martha N Ervin | 7 | Daughter | — | Kentucky |
| 59 | Marvin L Ervin | 5 | Son | — | Kentucky |
| 60 | Clifford E Ervin | 2 | Son | — | Kentucky |
| 61 | Roy S Hall | 30 | Head | Bottomer | Kentucky |
| 62 | Beatrice O Hall | 29 | Wife | — | Kentucky |
| 63 | Roy E Hall | 10 | Son | — | Kentucky |
| 64 | Earline Hall | 8 | Daughter | — | Kentucky |
| 65 | Norma J Hall | 7 | Daughter | — | Kentucky |
| 66 | Martha J Harper | 72 | Mother-in-law | — | Kentucky |
| 67 | Clyde W Harper | 32 | Head | Service Man | Kentucky |
| 68 | Lillie E Harper | 33 | Wife | — | Kentucky |
| 69 | Katherine Harper | 10 | Daughter | — | Kentucky |
| 70 | Virginia Harper | 11 | Daughter | — | Kentucky |
| 71 | Charles W Harper | 4 | Son | — | Kentucky |
| 72 | William A Collier | 60 | Father-in-law | — | Kentucky |
| 73 | Earl O Mcreynolds | 41 | Head | Section Laborer | Kentucky |
| 74 | Pauline E Mcreynolds | 39 | Wife | — | Kentucky |
| 75 | Edna E Mcreynolds | 20 | Daughter | — | Kentucky |
| 76 | Linda J Mcreynolds | 15 | Daughter | — | Kentucky |
| 77 | J. D. Mcreynolds | 14 | Son | — | Kentucky |
| 78 | Marvin L Mcreynolds | 7 | Son | — | Kentucky |
| 79 | Thomas Averitt | 39 | Head | Laborer | Kentucky |
| 80 | Alice H Averitt | 33 | Wife | — | Illinois |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1940 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)