Mary Gallagher (1932 - 2018) was an early advocate for the LGBTQ community and an educator in Queens. She was a founding member of PFLAG/Queens, a support, education and advocacy group for parents, families and friends of lesbian, gay, bisexual and transgender (LGBT) people, and served as its Queens Hospitality Chairperson. Gallagher was also a public school teacher for many years and later opened a nursery school and served as administrator of several daycare centers in New York City.