Bro. Don Bisson, FMS, a Marist Brother, is a spiritual director, supervisor, and formator of spiritual directors nationally and internationally.

With graduate degrees in Liturgy from Notre Dame, Ignatian Spirituality from Creighton, Transpersonal Psychology from I.T.P., and a Doctor of Ministry from G.T.U., Bro. Donald has worked in dozens of retreat houses. His first foray at Mariandale took place in September 1977, one year after its opening.

For over 49 years, he has taught classes for the R.F.C., spirituality of work, teaming with the Contemplative Programs, Advent and Lenten retreats, directed retreats, Dream and Jungian-based workshops, etc. He is still in the brochure with new programs even to this day!