James Otis 
Martha of California; A Story of the California Trail [EPUB ebook] 

This book follows the life of Martha, a young girl from Missouri who travels to California by way of the Oregon trail. The story is told in the first person by a young lady who travels with her family in a covered wagon and relates the adventures encountered on the trail, including confrontations with Indians, night time travel over deserts and salt fields, hunting excursions, and difficulties with livestock and provisions.