Crowds gathered at the studio to obtain her autograph and she received a large volume of correspondence from listeners.
She was educated at Hutchesons' Girls' Grammar School, Glasgow, before moving to London to train as a professional singer under Sir Henry Wood.
She abandoned her goal of becoming an opera singer and returned to Glasgow where her career began at the very beginnings of radio broadcasting.
Among the well-known entertainers who received their first opportunities from Garscadden were: Gordon Jackson, Fulton Mackay, John Grieve, Molly Weir, Tom Conti, Moira Anderson, Sydney Devine, Stanley Baxter, Jimmy Logan, Rikki Fulton, and Janet Brown.
[2] These three experts presented natural history programmes on Scottish Children's Hour, hosted by Garscadden.