Complex sentence: The museum was opened in 1901 and contains an extensive library of manuscripts and books, including over 1,000 books collected by the Rev.d Dr Peter Hay Hunter of Edinburgh and given by his widow in 1911.
Split into simpler sentences: The museum was opened in 1901 and contains an extensive library of manuscripts and books, including over 1,000 books collected by the Revd. Dr. Peter Hay Hunter of Edinburgh and given by his widow in 1911.