This is Asher Mortcha's sister. Their other siblings were Oscar and Udin. In the next two generations, there would be a number of marriages between the children of Asher Mortcha, Sara Frumeh, Oscar and Udin.
Sara Frumeh married Tzvi (Hershel B.) Temkin (1848-1941, son of Mayer Temkin son of Tzvi, and Devorah Rivka, daughter of Yizhak_).
The children of Sara Frumeh and Hershel as notated in a Temkin bible were: Chaim Nachum Yizchak (b. 1870, probably died at early age), Oscar (Asher) (b. 1873), Menachem Mendel (1876-1905), David (Dov Reuven) (b. 1878), Devora Chava (1879-1893), Isaac (shown) (b. 1884).
Menachem Mendel Temkin married Zelda Plagoff, his first cousin (they were Grandma Sadie's parents). Oscar married Rita Plagoff, the daughter of his Uncle Oscar (you see how this gets confusing). Isaac married Mamie Mannervitz, the daughter of Pesah Rachel, who was the daughter of his Uncle Udin. (I think that means they were second cousins.) Next