Louie salads (or Louis salads) are typically served cold or at room temperature with fresh crab meat or bay shrimp, hard boiled egg, olives, tomato and sometimes asparagus, and it includes a creamy dressing similar to Thousand Island, but it's not as sweet. The salad originated in the early 1900's on the West Coast of California.  There were a few restaurants on record in San Francisco that served it as early as 1914.