Phone number listed for Gertrude is (406) 452-2656. We have found 9 possible relatives of Gertrude: Lawrence J Gannon, Lucille M Gannon, Joe Edward Gannon and 6 other people. In addition to Great Falls, Gertrude also lived in Richland. Gannon Ranch, Inc is business that might have connection with Gertrude. Gertrude's birth date was listed as 1942. 519 Flood Rd, Great Falls, Mt 59404 is where Gertrude resides. Gertrude has reached the age of 82 years.