Sandra Kim was born on October 15, 1972.
Yes, but in this case it's not a plural use. It's a possessive. You need to add an apostrophe to show ownership of the birthday. It's Kim's birthday, the birthday of Kim. Just write: In honor of Kim's birthday. The word Kim's is not plural here, but it is correct with the possessive.
June 15, 1969 is Kim's birthday. Kims sign is genimi.
Sandra Alvarenga's birthday is June 27, 1988.
Sandra Cisneros was born on December 20, 1954.
Sandra Taylor was born on December 26, 1966.
Sandra Bernhard was born on June 6, 1955.
Sandra Stals was born on June 5, 1975.
Sandra Völker was born on April 1, 1974.
Sandra Boynton was born on April 3, 1953.
Sandra Dee was born on April 23, 1942.
Sandra Nasic was born on May 25, 1976.
Sandra Schmirler was born on June 11, 1963.