From the September 15, 1911 New York Times:

“San Francisco–Nearly 100 dogs of high degree yesterday marched in a strange funeral procession from the home of Miss Jennie Crocker, at Burlingame, to pay tribute to Dick Dazzler and Wonderland Duchess, two Boston terriers, valued at $5,000 each, which died a few days ago. The dogs, according to those present at the ceremony, seemed to feel the importance of the affair and acted as though they were really grieved over the loss of their companions.”