Looking for Robert James Curran

I am the son of Robert James Curran and have been estranged from him for over 7 years now. My father was born and raised in the lower mainland of BC (Burnaby I think). His mother's name is Beverly (her last name is unknown as she has married/divorced a few times). He is 51 years old and turns 52 on June 17th. He has a brother named Ron and a sister named Sheri that I know of (my immediate family wasn't close with the extended family). His last known location of residence was in Port Moody, BC and there was a rumor that he may have moved to Coquitlam. I am completely at a loss as to how to track him down. When I saw him last he was against most forms of technology, like telephones and computers, so I can't search for him that way. Any help would be appreciated!