Searching for Half Sister born January 1964 in either Virginia or New York

I am looking for my half-sister born in January 1964, we share the same father. Your birth mother’s name is Patricia. Both of your parents are deceased, your mother passed in July 1986 at the age of 43 and your father in October 1995. I researched who your maternal grandparents are, they are deceased as well, your grandfather in 1988 and your grandmother in 2002.