From as far afield as Australia, about 60 attended the weekend reunion, which finished yesterday.
Marching Otago committee member Jan Hoad said the club had more than 40 teams at the height of the sport's popularity in the 1960s and 1970s, after it started to take off in the late 1950s. Mrs Hoad said girls had fewer options for sporting activities then.
Now, there are only eight Otago teams. What was less certain was the exact age of the club. It was likely to be older than 70 years, but the record is unclear.
The club chose 2014 for its 70th because the New Zealand association formed in 1945, at which time the Otago club must have been in existence for at least a year or so, Mrs Hoad said.
The oldest at the reunion, Mary Love (90), was involved in the sport through her daughter, Carolyne Harvie. Mrs Love became a judge at national level and was once secretary of the Otago Marching Centre.
Mrs Harvie said marching was quite glamorous in her youth, its participants travelling around New Zealand for events.
''It was just good fun,'' she said.
