Complex sentence: Her experience of public work and talent for administration and organisation proved of value to Somerville, which, founded in 1879 and incorporated as a college in 1881, retained the style of'Hall' until 1894.
Split into simpler sentences: Her experience of public work and talent for administration and organisation proved of value there. Somerville had been founded in 1879 and incorporated as a college in 1881, although it retained the style "Hall" until 1894.