Complex sentence: Lois Lilley Howe, began her own firm in 1900 and she partnered with another MIT alum, Eleanor Manning O'Connor, in 1913 creating the firm of Lois Lilley Howe & Manning.
Split into simpler sentences: Lois Lilley Howe, a graduate of the Massachusetts Institute of Technology, began her own firm in 1900. She partnered with another MIT alum, Eleanor Manning O'Connor, in 1913 creating the firm of Lois Lilley Howe & Manning.