Hi,

I think that these surnames can be:
ŚWIDERSKI and PELECHATA (it is a schotch, as accent, over the S in "Świderski"). "Ś" is read as a soft "SH".

In PELECHATA these two letters "CH" are read the same as the lonely letter "H".

It can be SWEDERSKI - but it seems it is probably a distorted version of surname.
According Polish list of surnames there is (was? in 1998y.) only one person "Swederski", and 13980 persons "Świderski".

And about "Peleckata" - probably on the place of letter "k" is the letter "h". Acc.this list of surnames there are (were) 15 persons with this surname: one PELECHATA (woman) and 14 PELECHATY (men).

See:
http://www.herby.com.pl/ and click on the green link "Słownik nazwisk". Write in the empty frame a surname. If You can`t write Polish marks, write instead of them:
* (star) instead of group of letters
? (question mark) instead of one letter

If You`ll click on "Tutaj znajdują się objaśnienia skrótów" You`ll see an explanation of these abbreviations (there are names of formerly voivodships).

On the Polish website http://www.ornatowski.com/ I have found someone was looking for (at 2005y.) persons with surname "Świderski/Swiderski". Write "Swiderski" in white frame (where is text: "Szukaj nazwiska, miejscowości lub herbu" ) and click enter. You`ll see "Wyszukiwanie: Tablica ogłoszeń", click on this link on right (another results there are articles or "nie znaleziono"="no results").
You`ll go to this:
http://www.ornatowski.com/board/board2005-08.htm
Date 04-08-2005 - there is a woman (Swiderkaya Ekaterina) who was looking for some Swiderski`s. Click on link "odpowiedz" (= answer) to write to her.


Best regards,
Maria (Poland)