R. Avraham Yaakov Kalab (Kilob / Kileov)
Preiļi
He served in the rabbinate from 5672 (1912).
Pinkas HaKehillot, p. 208, but not found in additional sources. And in a newspaper article about his son R. Yisrael Moshe when elected rabbi in Riga, it was written that his father was a Torah scholar who engaged in commerce.
Latvia and Rabbis