We are so sorry for your loss. The loss of our pets is so heartbreaking and hope the memories of your sweet boy will replace your pain. What a lucky dog he was to have family that loved him so much.
Eugene O'Neil wrote this after his beloved dog died. Its a small excerpt but I hope it may bring you some peace:
One last word of farewell, Dear Master and Mistress. Whenever you visit my grave, say to yourselves with regret but also with happiness in your hearts at the remembrance of my long happy life with you: "Here lies one who loved us and whom we loved." No matter how deep my sleep I shall hear you, and not all the power of death can keep my spirit from wagging a grateful tail.
Tao House, December 17th, 1940