Built in 1929 for NY Financier Arthur Wheeler. Sold to actress Constance Bennett in 1931.

As a Research Vessel, she was owned by:

• Stanford Research Institute, Oakland, 1958-1969
• the Department of Defense, Atomic Support Agency, San Francisco, 1970-1973
• Department Of Oceanography, Naval Postgrad School, Monterrey, 1974-1984
• Intersea Research, Friday Harbor, 1985-1994