When the Maria Mitchell Observatory was erected in 1908 to
house the 5-inch telescope that had been given Maria Mitchell in 1859, Mrs.
Lydia Hinchman, niece of Maria and the principal co-founder of the Maria
Mitchell Association, wanted the Observatory to specialize in research while not
neglecting public relations entirely. She contacted Professor E. C. Pickering,
Director of Harvard College Observatory, for advice. He recommended installing
a photographic telescope and having the astronomer specialize in observations
of variable asteroids, Eros in particular. Margaret Harwood, one of his
assistants at Harvard, was chosen to head the Maria Mitchell Observatory, a
post she held for 45 years. Besides lesser contributions, she published a
catalogue of 74 asteroids known to have variable brightness. She discovered DF
Cygni, an unusual type of variable star with multiple periods, and analyzed its
variation on Harvard and Nantucket plates spanning over 50 years. Her final
masterpiece was an analysis of 419 variable stars in the Scutum region of the
Milky Way, the majority of the variables having been discovered by her High
School assistant John Heath. The second Director, Dorrit Hoffleit,
instituted a new project, Summer Research Participation on Variable Stars by
College Undergraduates, especially women. This project was continued by her
successor, Emilia Belserene. Nearly 200 college undergraduates participated in
these programs. The fourth Director, Eileen Friel concentrated on both
observational and theoretical researches on star clusters, her students
contributing few papers on variable stars. The current Director, Vladimir
Strelnitski, again enthusiastically specializes on modern problems of variable
stars.