Family: Stanley R. Krupka, Dr. / Helen Mae Petru (F10546)
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 | Emanuel Petru (1865- )
|
 | Agnes Kopecky (1871- ) |
| John J. Petru (1891- ) |
| Edmund J. Petru (1895- ) |
| Miloslav Milo C. Petru (1898- ) |