Marg was born in Hamilton to Dutch immigrants, the youngest of nine siblings. After graduating from nursing school in 1972, Marg worked as a psychiatric nurse in Newmarket and later as a VON in Kincardine. Although Marg grew up going to church regularly, she found a personal relationship with Jesus Christ in 1984. She and her husband, Hugh have 4 daughters and 8 grandchildren. Marg has been custodian at the Harbour since 1995, as well as being involved in various ministries in the church and town over the years.