Mary Katherine McCarthy, known as Mary Kay by friends and loved ones, peacefully ascended to heaven on September 23, 2019 in San Francisco. Mary Kay was a born in San Francisco on March 3, 1934, and spent most of her childhood in Berkeley, California. As a young adult, she attended Stanford University, earning both a bachelor’s and a graduate degree in education. Upon graduation, Mary Kay married William H. McCarthy. Together, she and Bill had eight children and eventually settled in Los Altos. Mary Kay became a cherished member of the community, contributing years of service to others. Mary Kay was the longest working member of the Assistance League of Santa Clara county where she chaired a program for blind children called TAGS (Take a Giant Step) and helped create an apartment complex for people recovering from serious illnesses at Stanford.