Wyatt Cameron "Cammy" Slack, a retired Maryland National Bank executive and Korean War veteran, died July 1 of respiratory failure at Gilchrist Hospice Care in Towson.
The Blakehurst retirement community resident was 83.
The son of a physician and a homemaker, Mr. Slack, who never used his first name, was born in Baltimore and raised in Guilford.
He was a 1946 graduate of Gilman School and earned a bachelor's degree in 1950 from Princeton University.
Mr. Slack joined the Marine Corps after college, rising to captain as an artillery specialist while serving at Quantico, Va., Fort Sill, Okla., and Camp Lejeune, N.C. He remained a Marine reservist until his discharge in 1958.
He began his banking career with the Bank of New York in New York City and returned to Baltimore in 1957, when he went to work as an assistant vice president with the old Maryland Trust Co., which later became Maryland National Bank.
Mr. Slack, who was an expert in the field of commercial lending practices, earned a degree in banking from the Rutgers University Stonier Graduate School of Business.
At Maryland National, he rose from vice president to senior vice president and senior international loan officer.
At the time of his 1988 retirement from Maryland National Bank, which had been renamed MNC Financial, he was senior credit officer for all holding company subsidiaries.
He had been a member of the boards of Fair Lanes, Merry-Go-Round Enterprises, Charles Steffey Inc., Nelson Co., JMN Corp., and the Baltimore Cemetery Co.
After retiring, he joined the International Executive Service Corps. which was sponsored by the U.S. Agency for International Development, and traveled to developing countries to advise local banks on credit management and commercial lending.
Mr. Slack, who formerly lived in Guilford and maintained a second home at Gibson Island, had numerous philanthropic interests. He had been a member of the board of the Baltimore Museum of Art, Baltimore Symphony Orchestra, Maryland Historical Society, Hammond-Harwood House in Annapolis and Gilman School.
He was also an advisory director of St. Mary's Seminary and University and treasurer of the Episcopal Cathedral Church of the Incarnation.
"My father's greatest asset was his positive spirit and strength of character," said his son, Randall Dyer "Randy" Slack of New York City. "It was this quality that touched so many people in his life whether in the family, community, professional or social context."
He enjoyed sailing, tennis, golf and duck hunting.
His wife of 36 years, the former Erika Muehlen Riedel, died in 2007.
Mr. Slack was a communicant and vestryman of St. Christopher-By-The-Sea on Gibson Island, where a memorial service will be held at 2 p.m. July 28.
Also surviving are a daughter, Katharine W. Slack of Portland, Maine; a granddaughter; and three nephews. Another son, Wyatt Cameron Slack Jr., died in 2007. An earlier marriage to the former Grace Gurnee Dyer ended in divorce.