Mary Drain Albro (1876-1962) was a founding member of the Pioneer Rose Association, established in 1936 to locate and preserve the roses brought to Oregon by the pioneers. In 1942 the Pioneer Rose Association dedicated a Pioneer Rose Garden on the campus of Pacific University, in memory of Tabitha Brown. A large, 17-ton boulder with a memorial plaque honoring Oregon pioneer women was added to the garden by the Portland Rosarians in 1949 for Pacific University's centennial celebration.
Albro was born and raised in Drain, Oregon, and attended nursing school in San Francisco. After a 40 year career as a nurse, she became involved with a variety of historical organizations, including Sons and Daughters of Oregon Pioneers and the Pioneer Rose Association.