Catherine T. Calt, 79, died at Melrose-Wakefield Hospital Saturday morning after a brief illness. Born and raised in Melrose, she was a life-long resident. Catherine graduated from Melrose High Class of 1940. She was an executive receptionist at the Bank of Boston for over 43 yrs and retired in 1984. A parishoner at Most Blessed Sacrament Church, she was also a member of the Women's Guild.