John Kinnaman III, a National Security Agency intelligence analyst for 22 years before his retirement in 1993, died Nov. 16 at Montgomery Hospice’s Casey House in Rockville. He was 74.

The cause was lung cancer, said his wife, Margaret Kinnaman.

Mr. Kinnaman spent part of his NSA career working in Germany and Turkey.

In his retirement, Mr. Kinnaman opened an Olympic memorabilia business in the historic Savage Mill complex near Baltimore and helped stage Olympic memorabilia shows for 10 years.

He served on the board of directors of the Olympin Collectors Club, an Olympic pin trading club, and he created a Web site dedicated to information about Olympic car badges.

John Kinnaman III was born in Indianapolis. His father was an Army officer, and Mr. Kinnaman attended high school in Munich. He was a 1976 graduate of the University of Maryland and received a master’s degree in education from Boston University in 1985. He served for 10 years with the Army in Japan and Germany.

His memberships included the International Society of Olympic Historians and the Jaycees.

In 2010, he moved to the Riderwood Village retirement community in Silver Spring.

His first marriage, to Donna Bird, ended in divorce. Survivors include his wife of 24 years, Margaret Shuster Kinnaman of Silver Spring; two daughters from his first marriage, Stacey Kinnaman of Lewes, Del., and Kelly Kinnaman of Burbank, Calif.; and a brother.

— Megan McDonough