As per your list of place names, all I could find for Jewish Records:

Locality/Town: OLKHOVETS
Raion/Region: BORSHCHEV
Oblast/District: TERNOPOL
Country: UKRAINE
Archive Name: CENTRAL ARCHIVES OF HISTORICAL RECORDS (AGAD)
Archive Locale: WARSAW
Archive Type: ARCHIVES
Document Type: BIRTH
Year List: VITAL RECORDS INCLUDED IN MELNITSA PODOLSKAYA

AGAD (Archives of Ancient Acts)
ul. Dluga 6, skr. poczt. 1005
Warszawa 00-950, Poland
Tel: 48/22/831-5491; Fax: 48/22/831-1608
e-mail: archagad@poczta.onet.pl
www.archiwa.gov.pl/index.eng.html
==============================

Locality/Town: GUSYATIN
Raion/Region: GUSYATIN
Oblast/District: TERNOPOL
Country: UKRAINE
Archive Name: CENTRAL ARCHIVES OF HISTORICAL RECORDS (AGAD)
Archive Locale: WARSAW
Archive Type: ARCHIVES
Document Type: BIRTH
Year List: 1815-1816; 1818-1876
Fond/Opis/Delo: 300

same archives as above

Locality/Town: GUSYATIN
Raion/Region: GUSYATIN
Oblast/District: TERNOPOL
Country: UKRAINE
Archive Name: CENTRAL ARCHIVES OF HISTORICAL RECORDS (AGAD)
Archive Locale: WARSAW
Archive Type: ARCHIVES
Document Type: MARRIAGE
Year List: 1826; 1851-1852; 1856-1858; 1865-1876
Fond/Opis/Delo: 300

same as above

=================================

Locality/Town: GUSYATIN
Raion/Region: GUSYATIN
Oblast/District: TERNOPOL
Country: UKRAINE
Archive Name: CENTRAL STATE HISTORICAL ARCHIVES OF UKRAINE IN LVIV
Archive Locale: LVOV
Archive Type: ARCHIVES
Document Type: DEATH
Year List: 1816-1876
Fond/Opis/Delo: 701/1/35

Central State Historical Archives of Ukraine in Lviv
Soborna Pl., 3-a
Lviv, 79008 Ukraine
Tel: 380/322/72-30-63; Fax: 380/322-72-35-08
E-mail: archives@cl.lv.ukrtel.net
======================================

Locality/Town: GUSYATIN
Raion/Region: GUSYATIN
Oblast/District: TERNOPOL
Country: UKRAINE
Archive Name: JEWISH HISTORICAL INSTITUTE (WARSAW, POLAND)
Archive Locale: WARSAW
Archive Type: JEWISH HIST. INSTITUTE
Document Type: IMMIGRATION
Year List: 1929-1939 (POLISH ALIJAH PASSPORTS TO PALESTINE)
Fond/Opis/Delo: 115

Jewish Historical Institute
ul. Tlomackie 3/5
Warszawa 00-090, Poland
Tel: 48/22/827-92-21; Fax: 48/22/827-8372
e-mail: secretary@jewishinstitute.org.pl
www.jewishinstitute.org.pl
===================================

Locality/Town: GUSYATIN
Raion/Region: GUSYATIN
Oblast/District: TERNOPOL
Country: UKRAINE
Archive Name: STATE ARCHIVE OF TERNOPOL OBLAST
Archive Locale: TERNOPOL
Archive Type: ARCHIVES
Document Type: KAHAL/JEWISH COMM.
Year List: 1923-1936
Fond/Opis/Delo: 231/2/9161, 9228, 9447, 9781, 9873, 9921


STATE ARCHIVE OF TERNOPOL OBLAST
Address: Sahaydachnyy Str.,
Ternopil, 46001
Tel./Fax: +380(352) 52-26-18, tel.: 52-44-95, 25-27-67
E-mail: dato@ukrpost.ua
Web: dato.te.ua

Director: Gumen Yuriy
Deputy Director: Khavarivskyy Bohdan
Deputy Director: Savchin Oksana

===============================

Which Horodok/Gorodok? The one in Lviv region?