IT WAS KNOWN as the Kendall House or — to some — the Rock House, and it sat near the foot of Morrell  Street overlooking Mission Bay for nearly 60 years. It was built around 1911 for Dr. George S. Hollister and, some years later, purchased by Dr. Oscar J. Kendall.  Dr. Kendall passed away in 1936, but his widow continued to live in the structure.  Youngsters at the beach, including Marianne Hespel, whispered that the place was haunted.  In September 1971, the home was razed to make way for a large apartment complex at 3995 Crown Point Drive.  Marianne grew up, got married and became Marianne Kendall.  Neither she nor Dr. Kendall, nor Kendall Street, are related.