Looking for relatives

My father's name is Roland Lawrence DeLorme and his father's name was Roland Joseph DeLorme and his father's name before him was Philimon (not sure of spelling) DeLorme. They settled in Aberdeen, Washington. I've been told that we descended from the French architect, Philibert DeLorme, and that the family left France during the revolution, settling in Canada and the U.S. Any information regarding other ancestors would be most appreciated. Thanks.