MK
Mary Kramer — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Jefferson-County, Kentucky
Our Model Tree links this Mary Kramer across the 1930 and 1940 US Censuses in Jefferson-County, Kentucky (XGBoost, ~Confirmed) — first a daughter (b.~1916), then head of a 8-person household.
Age 24
b. ~1916
Female
Daughter
Born: Kentucky
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Jefferson-County, Kentucky |
| Surname | Kramer |
| Given Name | Mary Catherine |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Kentucky |
| 1935 Residence (City) | Louisville City |
| 1935 Residence (County) | Jefferson |
| Additional Details | |
| Occupation | Stenographer |
| Industry | Loan Office |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 900 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
| Occupation | Stenographer |
| Township / Ward | Louisville City |
| 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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Raymond Kramer | Son | — | 22 | ~1918 |
| Eugene Kramer | Son | — | 20 | ~1920 |
| Catherine Kramer | Spouse | — | 45 | ~1895 |
| Esther Kramer | Daughter | — | 19 | ~1921 |
| George Kramer | Head | — | 51 | ~1889 |
| Alice Kramer | Daughter | — | 16 | ~1924 |
| Mary Kramer | Daughter | — | 24 | ~1916 |
| Gladys Kramer | Daughter | — | 14 | ~1926 |
Census Appearances
1930
Jefferson, Kentucky
Other, age 13
Jefferson, Kentucky · implied b. ~1917 — 50 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Kraemer |
| Given Name | Marcella |
| Relationship to Head | Ward |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Kentucky |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Can Read/Write | Yes |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1940
Jefferson-County, Kentucky
Daughter, age 24
Jefferson-County, Kentucky · implied b. ~1916 — 8 household members
| Surname | Kramer |
| Given Name | Mary Catherine |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Kentucky |
| 1935 Residence (City) | Louisville City |
| 1935 Residence (County) | Jefferson |
| Occupation | Stenographer |
| Industry | Loan Office |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 900 |
| Highest Grade | H 4 |
| 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 Kramer across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Kramer
Daughter · 1940 · age 24 · b. ~1916 · Kentucky
★ You are viewing this record
Sibling
Esther Kramer
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alice Kramer
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Raymond Kramer
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Eugene Kramer
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Gladys Kramer
Sibling · 1940 · age 14
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
1940 US Federal Census — Jefferson-County, Kentucky
Open full size
1940 US Federal Census — Jefferson-County, Kentucky
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01366-00573)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Paul Sondfort | 14 | Son | — | Kentucky |
| 42 | Delvin Sondfort | 11 | Son | — | Kentucky |
| 43 | Mary Jane Sondfort | 2 | Daughter | — | Kentucky |
| 44 | George J. Kramer | 51 | Head | Upholsterer | Kentucky |
| 45 | Catherine E. Kramer | 45 | Wife | — | Kentucky |
| 46 | Mary Catherine Kramer THIS PERSON | 24 | Daughter | Stenographer | Kentucky |
| 47 | Raymond J. Kramer | 22 | Son | Shipping Clerk | Kentucky |
| 48 | Eugene Kramer | 20 | Son | Machinist | Kentucky |
| 49 | Esther May Kramer | 19 | Daughter | — | Kentucky |
| 50 | Alice Kramer | 16 | Daughter | — | Kentucky |
| 51 | Gladys Kramer | 14 | Daughter | — | Kentucky |
| 52 | William Boehm | 62 | Head | Polisher | New York |
| 53 | Clara Boehm | 60 | Wife | — | Kentucky |
| 54 | Anthony Passafiume | 34 | Head | Truck Driver | Kentucky |
| 55 | Anna Passafiume | 27 | Wife | — | Kentucky |
| 56 | Paul Passafiume | 7 | Son | — | Kentucky |
| 57 | Anthony Jr. Passafiume | 5 | Son | — | Kentucky |
| 58 | James Passafiume | 2 | Son | — | Kentucky |
| 59 | Joseph Greenwell | 35 | Head | Construction | Kentucky |
| 60 | Alice J. Greenwell | 37 | Wife | — | Kentucky |
| 61 | Joan Greenwell | 3 | Daughter | — | Kentucky |
| 62 | Bruno Innsocker | 68 | Head | Proprietor | Germany |
| 63 | Emma Innsocker | 56 | Wife | — | Germany |
| 64 | Anna Eckerle | 44 | Head | — | Kentucky |
| 65 | Estelle Eckerle | 29 | Daughter | Bookkeeper | Kentucky |
| 66 | Mildred Eckerle | 21 | Daughter | Checker | Kentucky |
| 67 | Roscoe Kramer | 52 | Boarder | Fireman | Kentucky |
| 68 | Minnie Kramer | 72 | Mother | Cleaner | Kentucky |
| 69 | Elizabeth Crowder | 61 | Head | — | Kentucky |
| 70 | Charlotte Hampton | 40 | Daughter | Field Worker | Kentucky |
| 71 | George Crowder | 33 | Son | Clerk | Kentucky |
| 72 | Charles Hampton | 21 | Grandson | — | Kentucky |
| 73 | Charlotte Hampton | 13 | Granddaughter | — | Kentucky |
| 74 | Arthur R. Dister | 50 | Head | Electrical Engineer | Kentucky |
| 75 | Pauline Dister | 45 | Wife | — | Kentucky |
| 76 | Jacob L. Dister | 15 | Son | — | Kentucky |
| 77 | Harry Cardwell | 45 | Head | Clerk | Kentucky |
| 78 | Lorena Cardwell | 44 | Wife | — | Kentucky |
| 79 | Anna Cardwell | 12 | Daughter | — | Kentucky |
| 80 | Virginia Adcock | 80 | Mother-in-law | — | Kentucky |
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)