Name of the Town, its Variations and misspellings
Nowadays Administrative Location in Ukraine/Poland
Administrative Location before WWI
Administrative Location in the Interwar Period
Surnames I Dealt with and Their Various Spellings
Костопіль, Kostopil, Kostopol, Kostopel
Kostopil in Kostopil District, Volyn Province, Ukraine
Kostopol, Rovno Ujezd, Volhynia Gubernia, Russia
Kostopol, Powiat Kostopol, Wolynskie, Poland
Maas, Walter, Kruger, Reimann, Zaltzweld, Shreder, Leier, Leyer, Link, Littman