Your GGF was Israel son of Yehuda aka Leyb. You GGM is: "The converted woman Miryam daughter of the Patriarch Abraham (in Hebrew: Avraham Avinu)". Daughter or son of Avraham Avinu are the names given to people who have converted to Judaism and been accepted as Jews by a Rabbinical court.
Your GGF had a brother: Ze'ev aka Wolf. There are additional words after the name. I can make out "will be" but don't understand the last word.
The Hebrew date was Sunday, the 13th day of the Hebrew month of Tamuz. -- Odeda Zlotnick Jerusalem, Israel.
