Hi metamorphose702. I am sorry for the loss of your Maggie and Spencer. I understand the heartache my best friend cockatiel named Money passed away last year. Here are some links that might help your grieving of your losses.

Berkeley Parents Network: Death of a Pet

Time to Let Go, Dealing with the death of a pet
Coping with Pet Loss: Grieving the Death of a Dog or Cat
Coping With the Death of Your Pet : The Humane Society of the United States