Peter Koster, born in the Netherlands, received his early education and training in fine art and period decoration from an excellent Dutch trade school. After serving various apprenticeships in Holland, he migrated to this country, making Grand Rapids, MI his home. He worked for fine furniture companies paint decorating furniture and trays and soon became well known. His talents were much in demand. In 1934 he moved to Boston with his career, and gradually became interested in Rockport. He eventually opened his own studio in Rockport, MA called 'Old Harbor Gallery'. It is here he began to paint marine paintings, (which he is also known for). When he was 65 years old, he moved to Florida where he taught art at Port Charlotte University.